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  • 1
    Call number: IASS 22.95033
    Type of Medium: Monograph available for loan
    Pages: 378 S , 225 mm x 135 mm
    ISBN: 3899421876 , 978-3-89942-187-3
    Series Statement: Edition panta rei
    Language: German
    Note: Zugl.: Marburg (Lahn), Univ., Habil.-Schr., 2004 u.d.T.: Gutmann, Mathias: Die Medialität des Erfahrens
    Branch Library: IASS Library
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  • 2
    Journal available for loan
    Journal available for loan
    Tübingen : Mohr Siebeck ; 1.1884 - 48.1931; N.F. 1.1932/33 - 10.1943/44(1945),3; 11.1948/49(1949) -
    Call number: ZS 22.95039
    Type of Medium: Journal available for loan
    Pages: Online-Ressource
    ISSN: 1614-0974 , 0015-2218 , 0015-2218
    Language: German , English
    Note: N.F. entfällt ab 57.2000. - Volltext auch als Teil einer Datenbank verfügbar , Ersch. ab 2000 in engl. Sprache mit dt. Hauptsacht.
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  • 3
    Type of Medium: Monograph available for loan
    Pages: Bände (Loseblattsammlung)
    ISBN: 9783963144509 , 3963144505
    Subsequent Title: Fortsetzung von EnEV und Energieausweise ...
    Language: German
    Branch Library: PIK Library
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  • 4
    Call number: Z 06.0500
    Type of Medium: Journal available for loan
    Pages: 30 cm
    ISSN: 1824-7741
    Former Title: Vorgänger Geologisch-paläontologische Mitteilungen, Innsbruck
    Language: German , English
    Note: Ersch. unregelmäßig , Beiträge teilweise in Englisch
    Branch Library: GFZ Library
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  • 5
    Call number: MOP 19538/1d-6d
    Type of Medium: Monograph available for loan
    Pages: 111 S.
    ISSN: 0486-2287
    Language: Russian
    Note: In kyrill. Schr.
    Location: MOP - must be ordered
    Branch Library: GFZ Library
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  • 6
    Monograph available for loan
    Monograph available for loan
    Madrid : Secc
    Call number: PIK N 456-17-90913
    Type of Medium: Monograph available for loan
    Pages: 536 Seiten
    Series Statement: Ministerio de Transportes Turismo Y Comunicaciones : Publicación Serie A 114
    Parallel Title: 1,1=6; 2,1=13 von Publicaciones / D / Ministerio del Aire, Subsecretaria de Aviación Civil, Servicio Meteorológico Nacional
    Language: Spanish
    Location: A 18 - must be ordered
    Branch Library: PIK Library
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  • 7
    Monograph available for loan
    Monograph available for loan
    Leningrad : Gidrometeorolog. Izd.
    Call number: MOP 33767
    Type of Medium: Monograph available for loan
    Pages: 663 S.
    Language: Russian
    Note: In kyrill. Schr., russ.
    Location: MOP - must be ordered
    Branch Library: GFZ Library
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  • 8
    Call number: 3/S 07.0034(2017)
    In: Annual report
    Type of Medium: Monograph available for loan
    Pages: 51 Seiten
    ISSN: 1865-6439 , 1865-6447
    URL: Volltext  (kostenfrei)
    Parallel Title: Annual report ... / Helmholtz Association of German Research Centres
    Language: English
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  • 9
    Journal available for loan
    Journal available for loan
    München : Altop Verlag ; 2007 -
    Call number: Z 19.92410
    Type of Medium: Journal available for loan
    Pages: 30 cm
    ISSN: 1865-4266
    Former Title: Vorg. Nachhaltiges Wirtschaften in Deutschland
    Language: German
    Note: Ungezählte Beil. ab 2010: Special , Ersch. jährl. 4x
    Branch Library: IASS Library
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  • 10
    Call number: (DE-599)GBV03709842X
    Type of Medium: Monograph available for loan
    Language: German
    Location: MOP - must be ordered
    Branch Library: GFZ Library
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  • 11
    Call number: IASS 15.89494
    Type of Medium: Monograph available for loan
    Pages: Losebl.-Ausg.
    Edition: Stand: Oktober 2010
    ISBN: 9783768501828
    Language: German
    Branch Library: IASS Library
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  • 12
    Call number: S 90.0066(162,1)
    In: Geologisches Jahrbuch / A
    Type of Medium: Series available for loan
    Pages: 261 Seiten , Ill., 1 DVD-ROM (12 cm) und 1 Tafel-Beil. ([2] S.)
    ISBN: 9783510968534
    Series Statement: Geologisches Jahrbuch 162
    Classification:
    Engineering Geophysics
    Language: German
    Location: Lower compact magazine
    Branch Library: GFZ Library
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  • 13
    Call number: AWI G6-19-92375
    In: Berichte / Christian-Albrechts-Universität zu Kiel, Institut für Geowissenschaften, Nr. 9
    Type of Medium: Monograph available for loan
    Pages: 278 Seiten , Illustrationen
    ISSN: 0175-9302
    Series Statement: Berichte / Christian-Albrechts-Universität zu Kiel, Institut für Geowissenschaften 9
    Language: German
    Note: Zugleich: Dissertation, Christian-Albrechts-Universität zu Kiel, 1999 , INHALTSVERZEICHNIS 1. Einleitung 1.1 Kenntnisstand und offene Fragen 1.2 Fragestellung und Ziele dieser Arbeit 2. Umweltbedingungen in den Arbeitsgebieten 2.1 Hydrographie, Eisverhältnisse und NAO 2.2 Zur Variation von Wassertiefe und Breite der Dänemarkstraße und zur Vereisung Islands während des letzten Glazials 3. Methoden 3.1 Auswahl der Kernstationen 3.2 Probennahme und Analysen (Übersicht) 3.3 Zur Rekonstruktion von Paläobedingungen im Oberflächenwasser Zur Aussage stabiler Isotopenverhältnisse in planktischen Foraminiferen Zur Messung stabiler Isotopenverhältnisse Zur Massenspektrometrie Zur Rekonstruktion von Oberflächentemperaturen Alkane und Alkohole als Maß für Staubeintrag Eistranspmtiertes Material und vulkanische Aschen 3.4 Zur Rekonstruktion von Paläobedingungen im Zwischen-/ Tiefenwasser Häufigkeit von Cibicides- und anderen benthischen Arten (inkl. Taxonomie) Stabile Isotopenverhältnisse in benthischen Foraminiferen 3.5 AMS 14C-Datierungen Probenreinigung 3. 6 Hauptelementanalysen von vulkanischen Asche-Leithorizonten 3. 7 Geomagnetische Meßgrößen und magnetische Suszeptibiltät 3.8 Techniken zur Spektralanalyse 4. Methodische Ergebnisse 4.1 Zum Einfluß der Probenreinigung auf δ18O-/ δ13C-Werte 4.2 Probleme bei der langfristigen Reproduzierbarkeit von δ18O-Zeitreihen 4.3 Einfluß der Korngröße und Artendefinition planktischer Foraminiferen auf SST-Rekonstruktionen in hohen Breiten 4.4 Vergleich der stabilen Isotopenwerte von Cibicides lobatulus und Cibicidoides wuellerstorfi 5. Stratigraphische Grundlagen und Tiefenprofile der Klimasignale 5.1 Stratigraphische Korrelation zwischen parallel-gekernten GKG- und SL-/KL-Profilen 5.2 Flanktische δ18O-/ δ13C-Kurven, 14C-Alter und biostratigraphische Fixpunkte Westliches Islandbecken Kern PS2644 Kern PS2646 Kern PS2647 Kern 23351 Vøring-Plateau Kern 23071 Kern 23074 5.3 Benthische δ18O-/ δ13C-Werte in Kern PS2644 5.4 Siliziklastische Sedimentkomponenten: Eistransportiertes Material Westliches Islandbecken Kern PS2644 Kern PS2646 Kern PS2647 Vøring-Plateau Kern 23071 Kern 23074 5.5 Vulkanische Glasscherben in Kern PS2644: Wind- und Eiseintrag 5.6 Geochemie und Alter einzelner Tephralagen als Leithorizonte Westliches Islandbecken Kern PS2644 Kern PS2646 Kern PS2647 Vøring-Plateau Kern 23071 Kern 23074 5.7 Magnetische Suszeptibilität in den Kernen PS2644, PS2646 und PS2647 Kern PS2644 Kern PS2646 und PS2647 5.8 Geomagnetische Feldintensität und Richtungsänderungen in Kern PS2644 5.9 Variation von Planktonfauna und -flora Westliches Islandbecken: Kern PS2644 Kern PS2646 und PS2647 Vøring-Plateau: Kern 23071 und 23074 5.10 Benthische Foraminiferen in Kern PS2644 6. Entwicklung von Temperatur und Salzgehalt nördlich der Dänemark-Straße 6.1 Variation der Oberflächentemperatur nach Planktonforaminiferen 6.2 Variation der Oberflächentemperatur nach Uk37 6.3 Variation der Oberflächensalinität 7. Die Feinstratigraphie von Kern PS2644 als Basis für eine Eichung der 14C-Altersskala 22 - 55 ka 7.1 Korrelation zwischen den Klimasignalen in Kern PS2644 und der GISP2-Klimakurve zum Kalibrieren der 14C-Alter und Erstellen eines Altersmodells Tephrachronologische Marker Korrelationsparameter und -regeln Sonderfälle/ Probleme bei der Korrelation 7.2 Alters-stratigraphische Korrelation der Klimakurven von Kern 23071 und 23074 7.3 Variation der Altersanomalien zwischen 20 und 55 14C-ka 7.4 Variabilität des planktischen 14C-Reservoiralters in Schmelzwasserbeeinflußten Seegebieten Variation der planktischen 14C-Alter unmittelbar an der Basis von Heinrich-Ereignis 4 Unterschiede zwischen planktischen und benthischen 14C-Altern in der westlichen Islandsee. Zur Erklärung der inversen Altersdifferenzen 7.5 Differenz zwischen 14C- und Kalenderalter: Zeitliche Variation unter Einfluß des Erdmagnetfeldes - Modell und Befund 7.6 Sedimentationsraten der Kerne 23071, 23074 und PS2644 nach dem GISP2-Altersmodell Vøring-Plateau: Kerne 23071 und 23074 Südwest-Islandsee: Kern PS2644 8. Klimaoszillationen im Europäischen Nordmeer in der Zeit und Frequenzdomäne 8.1 "Der Einzelzyklus" in den Klimakurven von Kern PS2644 8.2 Zur Veränderlichkeit der Warm- und Kaltextreme sowie Zyklenlänge Besonderheiten in der Zyklenlänge Variation der Kalt-(Stadiale) Variation der Interstadiale 8.3 Periodizitäten der Klimasignale im Frequenzband der D.-Oe.-Zyklen. Der D.-Oe.-Zyklus von 1470 J., seine Multiplen und harmonischen Schwingungen Weitere Frequenzen: 1000-1150 Jahre- und 490- 510 Jahre-Zyklizitäten Höhere Frequenzen im Bereich von Jahrhunderten und Dekaden 8.4 Phasenbeziehungen und (örtliche) Steuemngsmechanismen der Dansgaard-Oeschger-Zyklen 9. Schlußfolgerungen Danksagung Literaturverzeichnis Anhang
    Location: AWI Reading room
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  • 14
    Monograph available for loan
    Monograph available for loan
    Garmisch-Partenkirchen : Institut für atmosphärische Umweltforschung der Fraunhofer- Gesellschaft
    Call number: MOP 44829 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 25 S. , graph. Darst.
    Language: English
    Location: MOP - must be ordered
    Branch Library: GFZ Library
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  • 15
    Call number: PIK N 453-17-91096
    Type of Medium: Monograph available for loan
    Pages: 50 Seiten , Illustrationen, Diagramme
    Language: German
    Location: A 18 - must be ordered
    Branch Library: PIK Library
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  • 16
    Monograph available for loan
    Monograph available for loan
    London : Penguin Books
    Type of Medium: Monograph available for loan
    ISBN: 9780141985206
    Language: English
    Branch Library: IASS Library
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  • 17
    Monograph available for loan
    Monograph available for loan
    Stuttgart : Schweizerbart Science Publishers ; Volume 1, number 1 (1978)-
    Call number: M 18.91571
    Type of Medium: Monograph available for loan
    Pages: 134 Seiten
    ISSN: 2363-7196
    Series Statement: Global tectonics and metallogeny : special issue Vol. 10/2-4
    Classification:
    Tectonics
    Parallel Title: Erscheint auch als Global tectonics and metallogeny
    Language: English
    Location: Upper compact magazine
    Branch Library: GFZ Library
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  • 18
    Monograph available for loan
    Monograph available for loan
    [Edgecumbe, N.Z.] : A. Muller
    Call number: M 15.89146
    Description / Table of Contents: An account of the results of the 2 March 1987 earthquake in the eastern Bay of Plenty and the aftermath's effects on the people and places on the Rangitaiki Plains
    Type of Medium: Monograph available for loan
    Pages: 223 S., , Ill.
    Language: English
    Branch Library: GFZ Library
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  • 19
    Monograph non-lending collection
    Monograph non-lending collection
    Leiden : Nijhoff ; 1.2009 -
    Call number: IASS 17.92082
    Type of Medium: Monograph non-lending collection
    ISSN: 1876-8814
    Language: English
    Branch Library: IASS Library
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  • 20
  • 21
    Call number: AWI A3-20-93434
    In: Meteorologische Abhandlungen / Institut für Meteorologie und Geophysik der Freien Universität Berlin, Band XXXII, Heft 1
    Type of Medium: Series available for loan
    Pages: 121 Seiten , Illustrationen
    Series Statement: Meteorologische Abhandlungen / Institut für Meteorologie und Geophysik der Freien Universität Berlin 32,1
    Language: German
    Note: Zugleich: Dissertation, Freie Unversität Berlin, [ca. 1963] , INHALTSVERZEICHNIS PROBLEMSTELLUNG UND ZIELSETZUNG 1. BEMERKUNGEN ZUM BEOBACHTUNGSGELÄNDE UND ZUM BEOBACHTUNGSMATERIAL 1.1 Das Beobachtungsgelände 1.2 Das Beobachtungsmaterial 2. HOMOGENITÄTSBETRACHTUNGEN 2.1 Temperatur 2.2 Niederschlag 2.3 Wind 2.4 Sonnenschein und Bewölkung 3. TEMPERATURVERHÄLTNISSE 3.1 Monats- und Jahreswerte 3.2 Tageswerte 3.3 Pentadenwerte 3.4 Häufigkeitsbetrachtungen 3.5 Interdiurne Veränderlichkeit 3.6 Der tägliche Gang 3.7 Vorkommen bestimmter Schwellenwerte 3.71 Frost- und Eistage 3.72 Sommer- und Tropentage 4. DER WASSERGEHALT DER LUFT 4.1 Monats- und Jahreswerte 4.2 Tageswerte 4.3 Häufigkeitsbetrachtungen 4.4 Interdiurne Veränderlichkeit 4.5 Der tägliche Gang 5. BEWÖLKUNGSVERHÄLTNISSE 5.1 Monats- und Jahreswerte 5.2 Tageswerte 5.3 Häufigkeitsbetrachtungen 5.4 Der tägliche Gang 5.5 Heitere und trübe Tage 5.6 Nebel 6. SONNENSCHEIN 6.1 Monats- und Jahreswerte 6.2 Tageswerte 6.3 Der tägliche Gang 7. NIEDERSCHLAGSVERHÄLTNISSE 7.1 Monats- und Jahreswerte 7.2 Niederschlagsbereitschaft 7.3 Tageswerte 7.4 Der tägliche Gang 7.5 Häufigkeitsbetrachtungen 7.6 Niederschlags- und Trockenperioden 7.7 Niederschlag und Wind· 7.8 Schneeverhältnisse 7.81 Schneefall und Schneedecke 7.82 Schneehöhe 7.9 Gewitter 8. WINDVERHÄLTNISSE 8.1 Windrichtung 8.2 Windgeschwindigkeit 8.21 Der jährliche Gang 8.22 Häufigkeitsbetrachtungen 8.23 Sturmtage und Windstillen 8.24 Der tägliche Gang 9.ZUSAMMENFASSUNG VERZEICHNIS DER TEXTTABELLEN VERZEICHNIS DER ABBILDUNGEN LITERATURVERZEICHNIS TABELLENANHANG
    Location: AWI Reading room
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  • 22
    Call number: AWI A3-20-93434-2
    In: Meteorologische Abhandlungen / Institut für Meteorologie und Geophysik der Freien Universität Berlin, Band XXXII, Heft 2
    Type of Medium: Series available for loan
    Pages: 218 Seiten , Illustrationen
    Series Statement: Meteorologische Abhandlungen / Institut für Meteorologie und Geophysik der Freien Universität Berlin 32,2
    Language: German
    Note: Zugleich: Dissertation, Freie Unversität Berlin, [ca. 1963] , INHALTSVERZEICHNIS PROBLEMSTELLUNG UND ZIELSETZUNG 1. BEMERKUNGEN ZUM BEOBACHTUNGSGELÄNDE UND ZUM BEOBACHTUNGSMATERIAL 1.1 Das Beobachtungsgelände 1.2 Das Beobachtungsmaterial 2. HOMOGENITÄTSBETRACHTUNGEN 2.1 Temperatur 2.2 Niederschlag 2.3 Wind 2.4 Sonnenschein und Bewölkung 3. TEMPERATURVERHÄLTNISSE 3.1 Monats- und Jahreswerte 3.2 Tageswerte 3.3 Pentadenwerte 3.4 Häufigkeitsbetrachtungen 3.5 Interdiurne Veränderlichkeit 3.6 Der tägliche Gang 3.7 Vorkommen bestimmter Schwellenwerte 3.71 Frost- und Eistage 3.72 Sommer- und Tropentage 4. DER WASSERGEHALT DER LUFT 4.1 Monats- und Jahreswerte 4.2 Tageswerte 4.3 Häufigkeitsbetrachtungen 4.4 Interdiurne Veränderlichkeit 4.5 Der tägliche Gang 5. BEWÖLKUNGSVERHÄLTNISSE 5.1 Monats- und Jahreswerte 5.2 Tageswerte 5.3 Häufigkeitsbetrachtungen 5.4 Der tägliche Gang 5.5 Heitere und trübe Tage 5.6 Nebel 6. SONNENSCHEIN 6.1 Monats- und Jahreswerte 6.2 Tageswerte 6.3 Der tägliche Gang 7. NIEDERSCHLAGSVERHÄLTNISSE 7.1 Monats- und Jahreswerte 7.2 Niederschlagsbereitschaft 7.3 Tageswerte 7.4 Der tägliche Gang 7.5 Häufigkeitsbetrachtungen 7.6 Niederschlags- und Trockenperioden 7.7 Niederschlag und Wind· 7.8 Schneeverhältnisse 7.81 Schneefall und Schneedecke 7.82 Schneehöhe 7.9 Gewitter 8. WINDVERHÄLTNISSE 8.1 Windrichtung 8.2 Windgeschwindigkeit 8.21 Der jährliche Gang 8.22 Häufigkeitsbetrachtungen 8.23 Sturmtage und Windstillen 8.24 Der tägliche Gang 9.ZUSAMMENFASSUNG VERZEICHNIS DER TEXTTABELLEN VERZEICHNIS DER ABBILDUNGEN LITERATURVERZEICHNIS TABELLENANHANG
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  • 23
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Physics Letters B 294 (1992), S. 466-478 
    ISSN: 0370-2693
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
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  • 24
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Physics Letters B 317 (1993), S. 474-484 
    ISSN: 0370-2693
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
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  • 25
    Publication Date: 2024-02-01
    Description: The Distributed System of Scientific Collections (DiSSCo) is a pan-European Research \nInfrastructure (RI) initiative. DiSSCo aims to bring together natural science collections from \n175 museums, botanical gardens, universities and research institutes across 23 countries \nin a distributed infrastructure that makes these collections physically and digitally open and \naccessible for all forms of research and innovation. DiSSCo RI entered the ESFRI \nroadmap in 2018 and successfully concluded its Preparatory Phase in early 2023. The RI \nis now transitioning towards the constitution of its legal entity (an ERIC) and the start of its \nscaled-up construction (implementation) programme. This publication is an abridged \nversion of the successful grant proposal for the DiSSCo Transition Project which has the \ngoal of ensuring the seamless transition of the DiSSCo RI from its Preparatory Phase to \nthe Construction Phase (expected to start in 2025). In this transition period, the Project will \naddress five objectives building on the outcomes of the Preparatory Phase project: \n1) Advance the DiSSCo ERIC process and complete its policy framework, ensuring the \nsmooth early-phase Implementation of DISSCo; \n2) Engage & support DiSSCo National Nodes to strengthen national commitments; \n3) Advance the development of core e-services to avoid the accumulation of technical debt \nbefore the start of the Implementation Phase; \n4) Continue international collaboration on standards & best practices needed for the \nDiSSCo service provision; and \n5) Continue supporting DiSSCo RI interim governance bodies and transition them to the \nDiSSCo ERIC formal governance. \nThe Project\xe2\x80\x99s impact will be measured against the increase in the RI\'s overall \nImplementation Readiness Level (IRL). More specifically, we will monitor its impact towards \nreaching the required level of maturity in four of the five dimensions of the IRL that can \nbenefit from further developments. These include the organisational, financial, \ntechnological and data readiness levels.
    Keywords: natural science collections ; natural history collections ; research infrastructure ; global ; natural science ; digitisation ; data standards ; Distributed System of Scientific Collections ; DiSSCo ; Digital Specimen Architecture ; FAIR Data Ecosystem ; FAIR digital objects
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 26
    Publication Date: 2024-02-01
    Description: Molecular systematic studies of the anthozoan class Octocorallia have revealed widespread incongruence between phylogenetic relationships and taxonomic classification at all levels of the Linnean hierarchy. Among the soft coral taxa in order Malacalcyonacea, the family Alcyoniidae and its type genus Alcyonium have both been recognised to be highly polyphyletic. A recent family-level revision of Octocorallia established a number of new families for genera formerly considered to belong to Alcyoniidae, but revision of Alcyonium is not yet complete. Previous molecular studies have supported the placement of Alcyonium verseveldti (Benayahu, 1982) in family Cladiellidae rather than Alcyoniidae, phylogenetically distinct from the other three genera in that family. Here we describe a new genus, Ofwegenum gen. nov. to accommodate O. verseveldti comb. nov. and three new species of that genus, O. coronalucis sp. nov., O. kloogi sp. nov., and O. colli sp. nov., bringing the total number of species in this genus to four. Ofwegenum gen. nov. is a rarely encountered genus so far known from only a few locations spanning the Indian and western Pacific Oceans. We present the morphological characters of each species and use molecular data from both DNA barcoding and target-enrichment of conserved elements to explore species boundaries and phylogenetic relationships within the genus.
    Keywords: DNA barcoding ; molecular phylogeny ; new combination ; northern Red Sea ; Ofwegenum gen. nov. ; Oman ; R\xc3\xa9union ; sclerites ; target-enrichment ; taxonomy ; ultraconserved elements
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 27
    Publication Date: 2024-01-18
    Description: A clear understanding of socio-technical interdependencies and a structured vision are prerequisites for fostering and steering a transition to a fully renewables-based energy system. To facilitate such understanding, a phase model for the renewable energy (RE) transition in MENA countries has been developed and applied to the country case of Morocco. It is designed to support the strategy development and governance of the energy transition and to serve as a guide for decision makers. Such a phase model could be shared widely as part of Morocco's engagement in international platforms of multilateral collaboration, such as the Energy Transition Council (chaired by the United Kingdom (UK) and managed by the British Embassy - Rabat). The analysis shows that Morocco has fully embarked on the energy transition. According to the MENA phase model, Morocco can be classified as being in the second phase "System Integration of Renewables". Nevertheless, Morocco plans to considerably increase the use of natural gas in order to back up intermittent solar and wind energy sources. The diversification of energy sources and a diverse portfolio of storage options, including solar thermal power and hydrogen, can foster flexibility options. To this end, a roadmap for power-to-X (PtX) should be considered for a smooth transition of the Moroccan energy supply and demand system. The expansion of local REs can significantly contribute to reducing Morocco's high fossil fuel imports that are causing a high fiscal burden. With this regard, energy security can be strengthened. Next to large-scale deployment, decentralisation of the energy system must be built to encourage an energy transition on all societal levels. The results of the analysis along the transition phase model towards 100% RE are intended to stimulate and support the discussion on Morocco's future energy system by providing an overarching guiding vision for energy transition and the development of appropriate policies.
    Keywords: ddc:600
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
    Type: report , doc-type:report
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  • 28
    Publication Date: 2024-01-18
    Description: The Algerian offshore earthquake of 18 March 2021, Mw 6.0, was felt by people in various Italian regions, also at large epicentral distance. This unusual human perception far from the source prompted us to analyze the waveforms recorded by land seismic stations installed along the Iberian, French, and Italian coasts. On some seismograms of the selected network, prominent T phases are detected. T waves can travel in the SOund Fixing And Ranging (SOFAR) channel over great distances (thousands of kilometers) with little loss in signal strength and be recorded by near‐coastal seismometers after the P (primary) and S (secondary) phases (hence T or tertiary phases). To explain the subjective perception of ground shaking with quantities that are measured on the seismogram, we estimated the empirical macroseismic intensities for both body and T phases and we calculated the body‐wave seismic attenuation. The P‐wave anelastic attenuation analysis shows two main wave propagation patterns that reflect lithosphere heterogeneity of the Algerian, Liguro‐Provençal, and Tyrrhenian basins. We find that in some cases, in particular along the Italian and French coasts, the largest ground shaking is caused by the T phase. Our observations confirm that the central‐western Mediterranean Sea is a favorable site for T‐wave propagation and suggest that the T phases should be taken into account in ground‐shaking hazard assessment for the central‐western Mediterranean.
    Description: In press
    Description: OST2 Deformazione e Hazard sismico e da maremoto
    Description: JCR Journal
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 29
    Publication Date: 2024-01-18
    Description: We aim to compute macroseismic parameters (location and magnitude) using the BOXER code for the first time on the citizen testimonies, that is, individual intensity data points (IDPs) at the global scale collected and made available by the LastQuake system of the European–Mediterranean Seismological Centre (EMSC). IDPs available for different earthquakes are selected to eliminate those that are geographically inconsistent with most data; then they are clustered spatially based on various methods. For each cluster with at least three IDPs, a macroseismic data point (MDP), corresponding to an intensity value assessed for given localities as in classical macroseismic studies, is computed by various central tendency estimators (average, median, and trimmed averages). Finally, macroseismic parameters are obtained by MDP distribution using two location methods of BOXER code. For each earthquake, we used raw and corrected intensities and 132 different combinations of grouping methods, estimators, and BOXER methods. We assigned a ranking to the combinations that best reproduce instrumental parameters and used such a ranking to select preferred combinations for each earthquake. We analyzed retrospectively the reliability of the parameters as a function of time and space. The results are essentially identical using original and corrected intensities and show higher reliability for BOXER’s method 1 than for method 0; they are dependent on the geographical area, and generally improve over time and with the number of IDPs collected. These findings are useful for the future real-time analyses, and for evaluating the location and magnitude of earthquakes whenever a sufficient number of IDPs are available and with a distribution such that MDPs can be derived and the BOXER method applied.
    Description: In press
    Description: OST4 Descrizione in tempo reale del terremoto, del maremoto, loro predicibilità e impatto
    Description: JCR Journal
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 30
    Publication Date: 2024-01-18
    Description: On February 6, 2023, at 01 : 17 UTC, a M = 7 8 earthquake struck the southern area of Turkey near Gaziantep town and was followed by a second earthquake of M = 7 5 at 10 : 24 UTC with the epicenter in Elbistan city. Both events were associated with the Anatolian Fault System and have claimed over 50,000 victims, as reported by the Disaster and Emergency Management Authority, and caused serious damage in the regions of southern Turkey and northern Syria. Seismic waves related to strong Turkey earthquakes have been recorded both by seismic stations throughout the globe and on other devices such as the ground deformation (GNSS, strainmeters, or tiltmeters) networks. In this paper, we show and analyze the earthquake signals recorded by bore-hole tilt stations that monitor seismic and volcanic activities at Mt. Etna. Tilt stations showed very large variations, despite their distance from the epicenter (approximately 1950 km) with a period between 10 and 25 seconds. We compared tilt and seismic data for a co–located station evidencing a very similar waveform that highlight how tiltmeters respond to translational acceleration rather than ground tilt during a teleseism, suggesting that, for waves with this period, they may behave as horizontal seismometers. By using these signals, we evidence the different behaviors of two of the most used models of tiltmeters on volcanoes (Lily and Pinnacle) and how they are useful for instrument calibration.
    Description: Published
    Description: 9030495
    Description: OSV3: Sviluppo di nuovi sistemi osservazionali e di analisi ad alta sensibilità
    Description: JCR Journal
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 31
    Publication Date: 2024-01-18
    Description: Changes in seismicity with time and location are diagnostic signals for understanding the dynamics of volcanic unrest. We used these signals at the Campi Flegrei caldera, in southern Italy, to investigate how structural changes have determined three styles of unrest since 1982, distinguished by a ground uplift (measured at Pozzuoli, near the centre of the caldera) of 178 cm in 1982–84; a subsidence of 93 cm in 1985–2005; and an uplift of 118 cm between 2005 and November 2023. Double-difference seismic locations and concentrations of seismic energy release have revealed impermeable horizons that correspond to the cap rock and self-sealed base of the geothermal system at depths of 1.5 and 3 km, respectively. Most earthquakes have been shallower than 3 km, consistent with the brittle upper crust being stretched over a zone of pressurization below the geothermal system. The 1982–84 uplift decayed after a major seismic swarm on April 1st, 1984, breached the lower impermeable horizon, which increased the flux of escaping gas and reduced the source pressure. Continued gas escape promoted subsidence until the lower horizon had resealed itself and initiated a new episode of uplift while gas from depth re-accumulated beneath. Compared with 1982–84, a greater proportion of recent seismicity has occurred at shallower depths below the actively degassing fumaroles of Solfatara-Pisciarelli, north-east of Pozzuoli. The associated high seismic b-values, between 1 and 2, are consistent with high fluid pressures and, hence, with locations more favourable to fracturing. Continued uplift may thus persist until fracturing of the shallow crust allows faster rates of gas release and depressurization of the pressure source.
    Description: Published
    Description: 118530
    Description: OSV2: Complessità dei processi vulcanici: approcci multidisciplinari e multiparametrici
    Description: JCR Journal
    Keywords: Campi Flegrei caldera ; Hydrothermal system ; Volcanic unrest ; Seismicity ; Fluid circulation ; Brittle/ductile transition
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 32
    Publication Date: 2024-01-18
    Description: We present a detailed analysis of the small magnitude (ML 〈 3) Reservoir Induced Seismicity associated with the Pertusillo water reservoir located in the high seismic hazard zone of Val d'Agri (Southern Italy). We apply template-matching detection to a 13-month-long dense passive survey, obtaining a final high-precision double-difference catalog of 5,070 earthquakes (−0.7 〈 ML 〈 2.6, MC = 0.2). The new catalog allows precisely tracking the spatiotemporal distribution of the swarm-seismicity and to map the b-value of the Gutenberg-Richter law. We combine seismicity data with available subsurface geophysical data, fostering an improved interpretation of the induced seismicity. We identify four seismicity-clusters showing rapid changes in seismic rate which correlate to severe seasonal oscillations. Seismicity unravels new km-scale faults or better define faults partially-illuminated by template earthquakes. b-value shows a significant spatial variability, with very-high b-value (up to 2) within areas of distributed seismicity and lower (∼1.3) b-value for on-fault seismicity featuring larger magnitude events. Seismicity is confined within a brine-saturated fractured carbonate reservoir, while earthquake distribution and rate are controlled by the fault architecture and rock properties (e.g., inherited fluid pathways, rock fracturing, pore fluid pressure). In particular, most earthquakes reactivate, with extensional kinematics, pre-existing reverse/transpressional faults favorably oriented in the present-day extension. All observations suggest that a poroelastic stress transmission mechanism, due to the seasonal water level oscillation, can explain the Pertusillo lake seismicity. This study confirms the importance of investigating the complex interaction among stress changes caused by human activities, pre-existing faults and local stress field to correctly assess the hazard posed by induced seismicity.
    Description: PRIN-MUSE-4D project of the Italian PRIN-MIUR program (Grant 2017KT2MKE).
    Description: Published
    Description: e2022JB025879
    Description: OST3 Vicino alla faglia
    Description: JCR Journal
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 33
    Publication Date: 2024-01-04
    Description: Um das Jahr 1540 erließen die Herren zu Franckenstein und die Herren von Heusenstamm eine Bergordnung für die Bergwerke in Espa im Taunus. Als Vorlage für diese Bergordnung diente eine Abschrift der Bergordnung der Grafen von Hohnstein vom 3. Februar 1528 für die Bergwerke in der Grafschaft Lauterberg. Es wurden aber nicht alle Paragrafen übernommen. Es fehlen eine Abschlusserklärung mit den Anwendungsbestimmungen sowie ein Datum zum Erlass dieser Bergordnung. Wahrscheinlich handelt es sich bei dieser Bergordnung um einen unveröffentlichten Entwurf. Eine weitere Bergordnung für dieses Gebiet ist aber nicht bekannt.
    Description: source
    Keywords: Herren zu Frankenstein ; Herren zu Heusenstamm ; Espa (Langgöns) ; Silberbergbau ; Bergordnung
    Language: German
    Type: doc-type:book , updatedVersion
    Format: 21
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  • 34
    Publication Date: 2024-01-05
    Description: The historical archive of global ocean subsurface temperature contains a large proportion of poorly quality-controlled as well as biased data. As a result, efforts to analyze past ocean change and variability are confounded, as is the use of ocean data assimilation systems. Currently many data centers perform automated ‘quick and dirty QC’ – redoing the same job poorly many times around the world. There have been no previous efforts to form a clean and definitive and very much needed historical archive. No single group has the manpower and resources to do the job properly – thus international cooperation is needed. The IQuOD 5th Workshop goals are to: provide an overview of what has been completed as part of IQuOD interim product v0.1 and discuss what went well and what could be improved (e.g., integrity checks, traceability, roadblocks, etc) • To review/discuss task teams plans beyond v0.1 and workout a draft plan/timeline (to note roadblocks and resources required to overcome them) • To start planning for training/outreach activities • To plan for dissemination/feedback strategies for IQuOD datasets/related products.
    Description: Published
    Description: Non Refereed
    Keywords: 5th CLIVAR GSOP IQuOD ; 3rd IODE SG-IQuOD ; 2nd SCOR WG 148 ; ASFA_2015::O::Oceanographic instruments ; ASFA_2015::I::In situ temperature ; ASFA_2015::T::Temperature profiles ; ASFA_2015::Q::Quality control ; ASFA_2015::S::Subsurface water ; ASFA_2015::C::Conductivity-temperature-depth observations ; ASFA_2015::S::Salinity profiles ; ASFA_2015::X::XBTs ; ASFA_2015::M::Mechanical bathythermographs
    Repository Name: AquaDocs
    Type: Book/Monograph/Conference Proceedings
    Format: 73pp.
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  • 35
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    Springer Science and Business Media LLC
    In:  EPIC3Nature Communications, Springer Science and Business Media LLC, 15(1), ISSN: 2041-1723
    Publication Date: 2024-01-06
    Description: Antarctic coastal waters are home to several established or proposed Marine Protected Areas (MPAs) supporting exceptional biodiversity. Despite being threatened by anthropogenic climate change, uncertainties remain surrounding the future ocean acidification (OA) of these waters. Here we present 21st-century projections of OA in Antarctic MPAs under four emission scenarios using a high-resolution ocean–sea ice–biogeochemistry model with realistic ice-shelf geometry. By 2100, we project pH declines of up to 0.36 (total scale) for the top 200 m. Vigorous vertical mixing of anthropogenic carbon produces severe OA throughout the water column in coastal waters of proposed and existing MPAs. Consequently, end-of-century aragonite undersaturation is ubiquitous under the three highest emission scenarios. Given the cumulative threat to marine ecosystems by environmental change and activities such as fishing, our findings call for strong emission-mitigation efforts and further management strategies to reduce pressures on ecosystems, such as the continuation and expansion of Antarctic MPAs.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
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  • 36
    Publication Date: 2024-01-06
    Description: The historical archive of global ocean subsurface temperature contains a large proportion of poorly quality-controlled as well as biased data. As a result, efforts to analyze past ocean change and variability are confounded, as is the use of ocean data assimilation systems. Currently many data centers perform automated ‘quick and dirty QC’ – redoing the same job poorly many times around the world. There have been no previous efforts to form a clean and definitive and very much needed historical archive. No single group has the manpower and resources to do the job properly – thus international cooperation is needed. The IQuOD 6thh Workshop goals are to: 1. Obtain agreement for the AutoQC process for application to the next product version. 2. Plan for the next IQuOD product: what will it consist of and what do we need to complete to get to the next release.
    Description: Published
    Description: Non Refereed
    Keywords: ASFA_2015::O::Oceanographic instruments ; ASFA_2015::I::In situ temperature ; ASFA_2015::T::Temperature profiles ; ASFA_2015::Q::Quality control ; ASFA_2015::S::Subsurface water ; ASFA_2015::C::Conductivity-temperature-depth observations ; ASFA_2015::S::Salinity profiles ; ASFA_2015::X::XBTs ; ASFA_2015::M::Mechanical bathythermographs
    Repository Name: AquaDocs
    Type: Book/Monograph/Conference Proceedings
    Format: 37pp.
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  • 37
    Publication Date: 2024-01-06
    Description: The historical archive of global ocean subsurface temperature contains a large proportion of poorly quality-controlled as well as biased data. As a result, efforts to analyze past ocean change and variability are confounded, as is the use of ocean data assimilation systems. Currently many data centers perform automated ‘quick and dirty QC’ – redoing the same job poorly many times around the world. There have been no previous efforts to form a clean and definitive and very much needed historical archive. No single group has the manpower and resources to do the job properly – thus international cooperation is needed. The IQuOD 7th Workshop goals are to: 1. Ratify new co-Chairs. 2. Review work achieved so far. 3. Review IQuOD structure. 4. Plan for tasks for the coming 12-24 months.
    Description: Published
    Description: Non Refereed
    Keywords: ASFA_2015::O::Oceanographic instruments ; ASFA_2015::I::In situ temperature ; ASFA_2015::T::Temperature profiles ; ASFA_2015::Q::Quality control ; ASFA_2015::S::Subsurface water ; ASFA_2015::C::Conductivity-temperature-depth observations ; ASFA_2015::S::Salinity profiles ; ASFA_2015::X::XBTs ; ASFA_2015::M::Mechanical bathythermographs
    Repository Name: AquaDocs
    Type: Book/Monograph/Conference Proceedings
    Format: 34pp.
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  • 38
    Publication Date: 2024-01-10
    Description: The results of the stock assessments of the European anchovy and European sprat, exploited by the Russian Federation in the Black Sea exclusively or predominantly, are presented. Based on the results of production modeling in 2022, the biomass value of the “Azov Sea” anchovy stock unit was in the buffer zone, between the target and limit biological reference points (Btr=BMSY=123.3 thousand tons, Blim=61.6 thousand tons); the time of stock recovery to the target level is 4 years. The fishing mortality rate (annual fishing loss, F) in 2022 is estimated to be F2022=0.20, which is lower than the biological reference point (Ftr=0.23). The estimation based on the lampara net surveys is more favorable: spawning stock biomass (exploitable) SSB2022 exceeded Btr calculated using Ricker’s “stock–recruitment” relationship by 19 %. The Azov Sea stock of the European anchovy has been characterized as “showing the evidence for recovery under heavy exploitation; subjected to the environmental effects”. In the 2022/2023 fishing season, fishing operations on the Black Sea stock of the European anchovy were mostly absent due to the state-imposed limitation in the Northwestern Black Sea and the western waters along the Southern Coast of Crimea (SCC). The biomass of the “Black Sea” anchovy stock unit in 2022, based on the results of JABBA trend modeling in “catch-only” representation, has been estimated as B2022=22.5 thousand tons, which is 3 % lower than the target reference point Btr=BMSY=23.2 thousand tons. The ratio between the current fishing mortality and its biological reference point was F2022/FMSY=0.467, which is indicative of its low exploitation. The catch composition of the European sprat in 2022–2023 was characterized by the prevalence of the 2+ and 3+ age classes (71–87 % by abundance). Based on XSA, in 2022, the spawning stock biomass (exploitable biomass) SSB2022 was 67.2 thousand tons, the recruitment was 56 billion ind., and the fishing mortality was F2022=0.29. The spawning stock biomass was in the buffer zone between the limit and target biological reference points by the biomass (SSB2022/SSBtr=1.433, SSB2022/SSBtr=0.841), while the fishing mortality was considerably lower than its biological reference point (F/F0.1=0.479). In 2022, the current Black Sea stocks of anchovy and sprat were officially characterized as “declining, little exploited”, with the possibility for underestimation of their biomass.
    Description: Представлены результаты оценки запасов хамсы и шпрота, эксплуатируемых Российской Федерацией исключительно или преимущественно в Черном море. В соответствии с результатами продукционного моделирования в 2022 г. значение биомассы «азовской» единицы запаса хамсы находилось в буферной зоне, между целевым и граничным биологическими ориентирами (Btr=BMSY=123,3 тыс. т, Blim=61,6 тыс. т), время восстановления запаса до целевого уровня составляет 4 года. Промысловая смертность (годовая промысловая убыль, F) в 2022 г. оценена на уровне F2022=0,20, что ниже биологического ориентира (Ftr=0,23). Оценка на базе лампарного учета более оптимистична: нерестовая (промысловая) биомасса SSB2022 на 19 % превысила Btr, найденный по зависимости Рикера «запас–пополнение». Запас азовской хамсы охарактеризован как «проявляющий признаки восстановления в условиях интенсивной эксплуатации, подверженный воздействию среды обитания». В путину 2022/2023 гг. промысел черноморской хамсы из-за административных ограничений в северо-западном районе и западных участках Южного берега Крыма (ЮБК) получил слабое развитие. Биомасса «черноморской» единицы запаса хамсы в 2022 г. по результатам трендового моделирования на JABBA в представлении «catch-only» оценена в B2022=22,5 тыс. т, что на 3 % ниже значения целевого ориентира Btr=BMSY=23,2 тыс. т. Отношение текущей промысловой смертности к своему биологическому ориентиру равнялось F2022/FMSY=0,467, что свидетельствовало о низком уровне эксплуатации. Структура промысловых уловов шпрота в 2022–2023 гг. характеризовалась преобладанием возрастных групп 2+ и 3+ (71–87 % по численности). Согласно XSA, в 2022 г. биомасса нерестового (промыслового) запаса SSB2022 составила 67,2 тыс. т, пополнение — 56 млрд экз., промысловая смертность F2022=0,29. Биомасса нерестового запаса находилась в буферной зоне между граничным и целевым биологическим ориентиром по биомассе (SSB2022/SSBtr=1,433, SSB2022/SSBtr=0,841) при промысловой смертности существенно ниже уровня своего биологического ориентира (F/F0.1=0,479). В 2022 г. текущие запасы черноморской хамсы и шпрота формально охарактеризованы как «убывающие, слабо эксплуатируемые», с признаками вероятной недооценки их биомассы.
    Description: Published
    Description: Non Refereed
    Keywords: Stock unit ; Biomass ; Biological reference points ; Единица запаса ; Биомасса ; European sprat ; European anchovy ; Fishing mortality rate ; Stock–recruitment relationship ; Catch composition ; Spawning stock biomass ; Хамса ; Шпрот (килька) ; ASFA_2015::S::Stock assessment ; ASFA_2015::F::Fishing mortality ; ASFA_2015::R::Recruitment ; ASFA_2015::C::Clupeoid fisheries ; ASFA_2015::A::Anchovy fisheries ; ASFA_2015::P::Population structure
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: pp.9-27
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  • 39
    Publication Date: 2024-01-10
    Description: Une campagne d’évaluation des petits pélagiques par acoustique ALPEL2018 a été menée le long de la côte algérienne par le Centre National de Recherche et de Développement de la Pêche et de l’Aquaculture (CNRDPA) entre décembre 2018 et février 2019 avec le navire de recherche BELKACEM GRINE. Cette campagne s’inscrit dans le cadre des activités de l’équipe ECOPEL de la Division de Recherche « Pêche » relatives à l’évaluation des stocks de petits pélagiques. L’objectif de cette campagne est d’utiliser les techniques d’écho-intégration combinées à des chalutages pélagiques pour estimer des indices instantanés de biomasse et d’abondance de neuf espèces cibles de petits pélagiques. La campagne ALPEL2018 a révélé une biomasse totale de 154 362 tonnes. La sardinelle (Sardinella aurita) est l’espèce la plus abondante avec 35% de la biomasse totale suivie du Chinchard méditerranéen (Trachurus mediterraneus), de la sardine (Sardina pilchardus) et de l’anchois (Engraulis encrasicolus) avec respectivement 23%, 16% et 14%. Le chinchard commun (Trachurus trachurus) et la bogue (Boops boops) sont faiblement représentés avec respectivement 9% et 3%. L’évaluation des stocks de T. picturatus et S. scombrus et S. japonicus n’a pas été effectuée en raison de leurs faibles présences dans les pêches d’identification.
    Description: An acoustic survey was conducted along the algerian coast by the National Centre for Research and Development of Fisheries and Aquaculture (CNRDPA) between December 2018 and February 2019 with the research vessel BELKACEM GRINE. This survey is part of the activities of the ECOPEL team of the "Fisheries" Research Division relating to the assessment of small pelagic stocks. The aim of this survey is to use echo-integration technics combined with pelagic trawls in order to estimate instantaneous indices of biomass and abundance for nine small pelagic target species. ALPEL2018 survey revealed a total biomass of 154 362 tons. Round sardinella is the most abundant species with 35% of the total biomass followed by the Mediterranean horse mackerel, sardine and anchovy with 23%, 16% and 14% respectively. The horse mackerel and the bogue are weakly represented with respectively 9% and 3%. T. picturatus, S. scombrus and S. japonicus stocks were not evaluated due to their low presence in the pelagic trawl hauls.
    Description: Références bibliographiques, Figures, Tableau.
    Description: Published
    Description: Refereed
    Keywords: petits pélagiques ; acoustique ; biomasse ; abondance ; côte algérienne ; ASFA_2015::B::Biomass ; ASFA_2015::A::Acoustics ; ASFA_2015::S::Stock assessment ; ASFA_2015::M::Marine fish ; ASFA_2015::P::Pelagic fish ; ASFA_2015::A::Abundance
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: 1-7
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  • 40
    Publication Date: 2024-01-10
    Description: Sandy barriers are coastal features formed and reworked by terrestrial and marine-induced processes along decadal to millenary scale periods. In the semi-arid areas along the extended North African coast, these coastal landscapes are undergoing accelerated morphodynamical changes induced by intensifying anthropogenic and climate drivers in the last century. To quantify the latter, we assess the changes in sediment dynamics of the Ghar El Melh sandy barrier extended over the northern part of the Gulf of Tunis in Tunisia using sedimentological analysis and quantification of the aeolian flux. A total of 37 subsurface samples and 30 surface aeolian trapped ones were collected at the coastal dunes of Ghar El Melh. Our sedimentological analysis reveals a distribution of 97% of sandy sediments and 3% of silty facies. The modal statistical analysis suggests that there are three distinguishable sediment types with 87% of samples formed by fine sands with modal value of 0.16 mm. The mixture of these indicates mixed terrigenous and marine sources redistributed by the hydrodynamic processes. The measurement of the aeolian flow suggests a maximum value of 0.0022 kg.m.-1min-1 which occurs in dust storms. This study reveals the low detrital sand supplies to the lagoon-sea barrier of Ghar El Melh, results in its gradual submersion, further exposing the coastal lagoon and engendering severe ecological degradations.
    Description: Published
    Description: Refereed
    Keywords: Mediterranean ; Sand banks ; Sedimentation ; Coastal erosion ; Eolian dust ; submerged shorelines
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: 37-48 pp
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  • 41
    Publication Date: 2024-01-10
    Description: There is a growing need to evaluate how fishing activities is being affecting the ecosystem. The study seeks to frame the assessment of risk status of three main fisheries operating in the Algerian coastal ecosystem, which are trawl, purse seine, and small-scale fisheries. The ecosystem-based fisheries assessment has been suggested to conduct the present study. Tier 2 process analysis has been used since the qualitative data was not rich. Across the nested risk design, the trawl, purse seine, and small-scale fisheries risk indices were projected in the yellow zone. The highestfishery risk index(FRI)was observed in the trawl fishery (1.363), followed by the small-scale fishery (1.309), then the lowest value was found in the purse seine fisheries (1.114). The purse seine fishery risk index differed significantly from both of trawl and small-scale fisheries risk indices, whereas there was no significant difference between trawl fishery risk index and small-scale fishery risk index. A proper management measures were to improve the fisheries risk situations.
    Description: Références bibliographiques, Figures, Tableaux.
    Description: Published
    Description: Refereed
    Keywords: Ecosystem approach ; EBFM ; Risk assessment ; Algerian fisheries ; ASFA_2015::F::Fishing ; ASFA_2015::E::Ecosystems ; ASFA_2015::S::Small scale fishing ; ASFA_2015::F::Fisheries
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: pp.8-19
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  • 42
    Publication Date: 2024-01-10
    Description: This work aims to investigate the trace metal contamination of El Mellah Lagoon by assessing their accumulation levels in the tissues of the brackish water cockle Cerastoderma glaucum (Bivalvia: Cardiidae). Our findings show that copper (Cu), zinc (Zn), cadmium (Cd), and lead (Pb) concentrations in cockles ranged between 0.81-2.09, 4.12–6.72, 0.09–0.15, and 0.39–0.76 mg/kg soft tissue dry weight respectively, in ascending order of: Cd〈 Pb〈 Cu〈 Zn. Statistical analysis reveals significant seasonal variations in measured metals, with the highest values all recorded in autumn but remaining well below the recommended guide values. Overall, our study excludes the existence of an ecotoxicological threat linked to the presence of essential (Cu, Zn) and toxic (Cd, Pb) metals in the cockles' flesh.
    Description: Références bibliographiques, Figures, Tableaux.
    Description: Published
    Description: Refereed
    Keywords: Lagoon ; Cerastoderma glaucum ; heavy metals ; El Mellah ; Algeria ; ASFA_2015::C::Contamination ; ASFA_2015::C::Clam fisheries ; ASFA_2015::T::Trace metals ; ASFA_2015::B::Bioaccumulation ; ASFA_2015::H::Heavy metals ; ASFA_2015::L::Lagoon fisheries ; ASFA_2015::L::Lagoons ; ASFA_2015::L::Lead ; ASFA_2015::Y::Zinc
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: pp.42-49
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  • 43
    Publication Date: 2024-01-10
    Description: The dynamics of lipid content in the body of anchovy (Engraulis encrasicolus) at various stages of its life cycle has been analyzed for the time range from 2020 to 2022. This article indicates that the content of constructive and energy-bearing substances in the anchovy body is discernibly dependent on the fish’s age: the lipid content in fingerlings is lower than in older individuals. Based on the analysis of the inter-seasonal dynamics of the lipid content in the anchovy body, it has been identified that the lowest lipid content is typical for this fish in April, and the highest lipid content is observed in October. The analysis of the inter-annual dynamics of the lipid content in the anchovy body at the end of its feeding period has shown that, for the last three years, there has been a trend towards a gradual increase in the content of lipids to 16–18 %.
    Description: Проведен анализ динамики содержания липидов в теле хамсы (Engraulis encrasicolus) в различные периоды ее жизненного цикла с 2020 по 2022 г. В статье показано, что разница в содержании энергопластических веществ в теле хамсы четко прослеживается в зависимости от возраста рыб: у сеголеток количество липидов ниже, чем у старшевозрастных особей. На основе анализа межсезонной динамики содержания липидов в теле хамсы установлено, что минимум содержания липидов характерен для рыб в апреле, а максимум — в октябре. Анализ межгодовой динамики содержания липидов в теле хамсы в конце нагульного периода показал, что в последние три года наблюдается тренд на постепенное увеличение их количества до уровня 16–18 %.
    Description: Published
    Description: Non Refereed
    Keywords: Engraulis encrasicolus (Linnaeus, 1758) ; Age ; Seasonal dynamics ; Life cycle ; Возраст ; Сезонная динамика ; Жизненный цикл ; Engraulis encrasicolus maeoticus Pusanov, 1926 ; Азовская хамса ; Европейский анчоус ; ASFA_2015::L::Lipids ; ASFA_2015::S::Seasonal changes ; ASFA_2015::F::Fish physiology
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: pp.28-35
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  • 44
    Publication Date: 2024-01-10
    Description: Variability in the yield of the Azov Sea tyulka (Azov Sea stocks of the Black Sea–Caspian sprat) generations affected by the environmental changes in 1993–2022 has been estimated. Stock assessments of the ichthyoplankton have been conducted in the Azov Sea in June for more than 50 years. Evaluation of the fingerling abundance is carried out in the course of the surveys with lampara nets in August. During the survey period, considerable environmental changes attributable to natural and anthropogenic factors have been identified; they heavily influence the yield of the Azov Sea tyulka generations.
    Description: Дана оценка колебаний урожайности поколений тюльки в связи с изменениями условий обитания в период 1993–2022 гг. Исследования по оценке численности ихтиопланктона проводятся в Азовском море в июне более 50 лет. Учет численности сеголеток осуществляется в учетной лампарной съемке в августе. В течение анализируемого периода выявлено, что произошли значительные изменения условий, вызванные природными и антропогенными факторами, которые определяют урожайность поколений тюльки.
    Description: Published
    Description: Non Refereed
    Keywords: Black Sea–Caspian sprat ; Учет численности ; Азовская тюлька ; Сельдевые ; Выклюнувшиеся личинки ; Mnemiopsis leidyi ; Beroe ovata ; Aurelia aurita ; Rhizostoma pulmo ; ASFA_2015::F::Fish larvae ; ASFA_2015::F::Fingerlings ; ASFA_2015::S::Surrounding nets ; ASFA_2015::Y::Yield predictions ; ASFA_2015::A::Abundance ; ASFA_2015::S::Salinity effects ; ASFA_2015::Y::Zooplankton
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: pp.36-40
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  • 45
    Publication Date: 2024-01-10
    Description: The Proletarsky Reservoir located in the Kuma–Manych Depression is a water body that is highly important for the fisheries in the Southern Russia. Its western part is the most economically valuable, which necessitates the investigation of its zooplankton serving as a food source for the larvae and planktivorous fish. This work presents the results of investigation of the zooplankton community in this area during fish spawning campaign in the spring seasons of 2021–2022. In spring, the zooplankton was represented by 4 groups of organisms (30 species), which include rotifers, copepods, cladocerans, and meroplankton. Among them, the copepods were the most diverse, with the species of Cyclopoida suborder being the most prevalent. The rotifers were the most abundant, comprising 67 % of the total zooplankton abundance. The cladocerans comprised the major part of the zooplankton biomass; their share in the total biomass consistently remained at 79 %. The total biomass of the zooplankton exceeded 300 mg/m3, which is sufficient to provide the planktivorous fish species and their larvae with a food source.
    Description: Пролетарское водохранилище, расположенное в Кумо-Манычской впадине, является важным водным рыбохозяйственным объектом юга России. Западный участок водохранилища имеет наибольшее рыбохозяйственное значение, что обуславливает актуальность исследования зоопланктона, являющегося кормовой базой личинок и планктоноядных рыб. В работе представлены результаты изучения в весенние сезоны 2021–2022 гг. зоопланктонного сообщества на этой акватории в период нереста рыб. Зоопланктон весной был представлен 4 группами организмов (30 видов), которые включают коловраток, веслоногих и ветвистоусых ракообразных, меропланктон. Наиболее разнообразны веслоногие ракообразные, среди которых доминировали представители п/отр. Cyclopoida. Коловратки характеризовались высокой численностью, составляющей более 67 % общего количества зоопланктеров. Основу биомассы зоопланктона формировали веслоногие ракообразные, доля которых в общей биомассе стабильно соответствовала 79 %. Общая биомасса зоопланктона составляла более 300 мг/м3, что является хорошим уровнем кормовой базы для планктоноядных рыб и их личинок.
    Description: Published
    Description: Non Refereed
    Keywords: Численность ; Биомасса ; Видовое разнообразие ; Зоопланктон ; Кормовая база ; Cyclopoida ; ASFA_2015::Y::Zooplankton ; ASFA_2015::P::Population abundance (in number) ; ASFA_2015::B::Biomass ; ASFA_2015::S::Species diversity ; ASFA_2015::F::Fish food organisms
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: pp.206-209
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  • 46
    Publication Date: 2024-01-10
    Description: This work presents quantitative data collected in the course of zander and roach artificial reproduction in the hatcheries of the Krasnodar Territory in 2023. Based on the surveys, 4.68 t of roach and 17.5 t of zander entered the reservoirs of Yeysk Experimental Hatchery for spawning. For the first time during the long-term observations, young individuals of low reproductive quality prevailed in the roach spawning stock. During the downstream migration, roach juveniles were absent in catches, and zander juveniles occurred very sporadically, which indicates their increased loss during all stages of early ontogenesis. The data collected in Beysug Hatchery gives evidence of 2.484 t of roach and 2.557 t of zander entering its reservoirs for spawning. In June–July, during the downstream migration, 16.48 million ind. of roach juveniles, which weight ranged from 0.3 to 1.2 g, were recorded; for zander juveniles these values were 0.140 million ind. and 0.91–1.53 g. The downstream migration of juveniles continued in August. At the floodgate of East-Akhtarsk Hatchery, the monitoring of breeders recorded 0.457 t of roach and 0.088 t of zander. The breeders were of low reproductive quality. Based on quantitative evaluation, the reproduction yield in the East-Akhtarsk Hatchery reservoir was 153.4 million ind. of roach (weight ranging from 0.3 to 0.96 g) and 102.25 million ind. of zander (weight 1.28–2.07 g). The monitoring of breeders entering the limans of Chernoerkovsk Hatchery recorded 8.0 t of roach and 12.85 t of zander. Chernorkovsk Hatchery showed the highest results: 426.32 million ind. of roach juveniles (weight 0.3–0.9 g) and 218.16 million ind. of zander juveniles (weight 0.47–3.37 g). Analysis of the obtained data has shown that low reproductive efficiency of both roach and zander is indicative for almost all investigated reservoirs of the hatcheries.
    Description: В работе приводятся материалы, характеризующие количественные показатели искусственного воспроизводства судака и тарани в нерестово-выростных хозяйствах Краснодарского края в 2023 г. По учетным данным на нерест в водоемы Ейского ЭХРВР зашло 4,68 т тарани и 17,5 т судака. Впервые за ряд лет наблюдений в нерестовом стаде тарани преобладали младшевозрастные особи с низкими рыбоводными показателями. В период ската молодь тарани в уловах отсутствовала, а молодь судака встречалась единично, что свидетельствует о повышенном отходе молоди на всех этапах раннего онтогенеза. По данным Бейсугского НВХ на нерест в водоемы было пропущено 2,484 т тарани и 2,557 т судака. При скате молоди в июне–июле было учтено 16,48 млн экз. молоди тарани массой 0,3–1,2 г и 0,140 млн экз. молоди судака массой 0,91– 1,53 г, в августе скат молоди продолжался. При мониторинге захода производителей на шлюзе Восточно-Ахтарского НВХ было учтено 0,457 т тарани и 0,088 т судака. Производители характеризовались низкими рыбоводными показателями. По итогам бонитировочного учета объемы воспроизводства в водоемах ВАНВХ составили 153,4 млн экз. тарани массой 0,3–0,96 г и 102,25 млн экз. судака массой 1,28–2,07 г. При мониторинге захода производителей в лиманы ЧНВХ было учтено 8,0 т тарани и 12,85 т судака. На Черноерковском НВХ получены самые высокие результаты, всего было учтено 426,32 млн экз. молоди тарани массой 0,3–0,9 г и 218,16 млн экз. судака массой 0,47–3,37 г. Анализ полученных материалов свидетельствует о том, что практически во всех исследуемых водоемах НВХ отмечается низкая эффективность воспроизводства молоди тарани и судака.
    Description: Published
    Description: Non Refereed
    Keywords: Нерестово-выростное хозяйство ; Молодь судака ; Молодь тарани ; Эффективность воспроизводства ; Sander lucioperca (Linnaeus, 1758) ; Rutilus rutilus (Linnaeus, 1758) ; Производители ; Yeysk Experimental Hatchery ; Chernoerkovsk Hatchery ; East-Akhtarsk Hatchery ; ASFA_2015::R::Reproduction ; ASFA_2015::J::Juveniles ; ASFA_2015::E::Efficiency
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: pp.210-215
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  • 47
    Publication Date: 2024-01-10
    Description: Notre étude a pour but d'évaluer l'effet des traitements post-capture (transport et hygiène) sur la qualité des produits de la pêche vendus au marché de Bou-Ismail comme région côtière et de Khemis Miliana comme région interne. L'étude s'est déroulée du mois d'Avril au mois de Juillet 2013. La méthodologie utilisée est celle d'une évaluation de la qualité organoleptique et microbiologique. Cette évaluation a été investiguée pendant la vente dans les deux régions. Les résultats de l’évolution des différents germes obtenus ont été comparés selon la région de prélèvement, l’espèce étudiée et la période du prélèvement. L'évaluation organoleptique et bactériologique indique que les poissons de Bou-Ismail (la Sardine et la Crevette) ont une bonne qualité et une très bonne fraicheur, alors que le Rouget a une qualité satisfaisante, en comparaison avec celles de Khemis Miliana qui ont une qualité satisfaisante et une fraicheur modérée, donc une diminution de la qualité au niveau de la région interne par rapport à la région côtière. Cependant, les poissons analysés sont exempts de germes potentiellement pathogènes tels que Salmonella sp.
    Description: Références bibliographiques, Tableaux, Figures.
    Description: Published
    Description: Refereed
    Keywords: sardine ; rouget ; crevette ; qualité organoleptique ; qualité microbiologique ; ASFA_2015::M::Marine fish ; ASFA_2015::Q::Quality ; ASFA_2015::O::Organoleptic properties ; ASFA_2015::M::Microbiology
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: pp.20-30
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  • 48
    Publication Date: 2024-01-10
    Description: The abundance of the sterlet population in the Don River is maintained by means of annual releases of its juveniles. For the reproduction, the breeders from the broodstock created in the Don Sturgeon Hatchery are used. Over 2019–2022, sturgeon hatcheries of the Azov-Don Branch of the FSBI “Glavrybvod” (Main Basin Department for Fisheries and Conservation of Aquatic Biological Resources) at the Don River downstream from Tsimlyansk Reservoir released 6.893 million sterlet juveniles exceeding 1.5 g in weight. Analysis of the data has shown that the efficiency of reproduction in this sturgeon species depends on the quality of the reared juveniles and the breeders involved in reproduction.
    Description: Поддержание численности популяции стерляди в р. Дон осуществляется за счет ежегодных выпусков молоди. Для выполнения воспроизводственных работ используются производители из ремонтно-маточного стада (РМС), сформированного на ОРЗ «Донской». За период 2019–2022 гг. осетровыми рыбоводными заводами Азово-Донского филиала ФГБУ «Главрыбвод» в р. Дон ниже Цимлянского водохранилища было выпущено 6,893 млн экз. молоди стерляди массой 1,5 г и более. Анализ данных показал, что эффективность воспроизводства этого вида осетровых рыб зависит от качества используемых в воспроизводственном процессе производителей и выращенной молоди.
    Description: Published
    Description: Non Refereed
    Keywords: Sterlet ; Breeders ; Стерлядь ; Производители ; Молодь ; Плодовитость ; Выживаемость ; Искусственное воспроизводство ; ОРЗ «Донской» ; Главрыбвод ; ASFA_2015::R::Reproduction ; ASFA_2015::J::Juveniles ; ASFA_2015::F::Fecundity ; ASFA_2015::E::Egg production
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: pp.229-234
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  • 49
    Publication Date: 2024-01-10
    Description: The aim of the current study was the assessment of a Polycyclic aromatic hydrocarbon (PAHs) toxicity on an ascidian species, Styela plicata. Acute and subacute toxicity of naphthalene (NAP) has been determined using five increasing concentrations (0.5, 1, 1.5, 2.5 and 5 mg/l) during 96h of exposure. The half lethal concentration (LC50, 96h) value of naphthalene for S. plicata was 2.41 mg/l. Furthermore, the filtration activity decreased in the five tested concentrations of NAP; a significant decrease by 69% and 91.8% was observed after 1h in the groups exposed to C1 and C5, respectively. A similar pattern was noted after 2h of filtration; the decrease was estimated to 39% in C1 and 72.5% in C5. The results from this bioassay confirmed the toxicity of NAP on S. plicata; we also provided information about the use of S. plicata as a potential bioindicator species for the assessment of PAHs toxicity.
    Description: Published
    Description: Refereed
    Keywords: Styela plicata ; Ascidiacea ; acute toxicity ; filtration ; naphthalene ; aromatic hydrocarbon
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: 79-85
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  • 50
    Publication Date: 2024-01-10
    Description: The bioinvasion has increased in recent years with climate change, and some invasive species have caused significant damage to the marine ecosystem, including a great loss of biodiversity. The studied seagrass is a marine tropical phanerogam introduced in the Mediterranean at the end of the 19th century and in southern Tunisia in 2003. In this study we record this species for the first time in northern Tunisia, precisely in the Punic Port of Carthage-Salammbo. Surveys were carried out on foot around the Punic Port, and measurements/photos were taken on site, and others in the laboratory on taken samples. Most of these measures do not differ from those carried out elsewhere in the Mediterranean. For the moment, the plant does not occupy a large part of the port buttom, but it may invade all the area in the future.
    Description: Published
    Description: Refereed
    Keywords: Halophila stipulacea ; Records ; invasive species
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: 94-98
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  • 51
    Publication Date: 2024-01-10
    Description: Over the course of long-term studies, the contribution of some sturgeon hatcheries into the population abundance of the sturgeon species in the Azov and Black Sea Basin has been investigated. For this purpose, the genotypes of the Russian sturgeon and starry sturgeon breeders from the hatchery broodstocks have been analyzed and compared with the sturgeon juveniles caught in the natural water bodies to identify their relation. It has been found out that the frequency of occurrence of the juveniles spawned by the breeders from the hatchery broodstocks does not correlate with the number of juveniles released by the corresponding breeding facility. The largest share of the investigated Russian sturgeon juveniles originated from the breeders from the Don Sturgeon Hatchery (77 %); the offspring of the breeders from the Temryuk Sturgeon Hatchery comprised 20 % of the total number, and 3 % of the juveniles originated from the Grivensk Sturgeon Hatchery. Out of the investigated starry sturgeon juveniles, the share of the offspring was 37 % for the Don Sturgeon Hatchery, 61 % for the Grivensk Sturgeon Hatchery, and 2 % for the Temryuk Sturgeon Hatchery.
    Description: В ходе многолетних исследований изучен вклад отдельных осетровых рыбоводных заводов (ОРЗ) в пополнение численности популяции осетровых видов рыб Азово-Черноморского бассейна. Для этого были проанализированы генотипы заводских производителей русского осетра и севрюги и выловленной в естественных водоемах молоди осетровых рыб, проведено их сопоставление на предмет родства. Выявлено, что частота встречаемости молоди, являющейся потомством заводских производителей, не коррелирует с объемами выпуска молоди конкретными воспроизводственными предприятиями. Наибольшую долю из проанализированной молоди русского осетра составляли потомки рыб с ОРЗ «Донской» (77 %), потомки рыб с Темрюкского ОРЗ составляли 20 %, с Гривенского ОРЗ — 3 %. Среди молоди севрюги доля потомков производителей с ОРЗ «Донской» составляла 37 %, с Гривенского ОРЗ — 61 %, с Темрюкского ОРЗ — 2 %.
    Description: Published
    Description: Non Refereed
    Keywords: Haplotype ; Genetic typing ; Русский осетр ; Севрюга ; Митохондриальная ДНК ; Гаплотип ; Генотипирование ; ОРЗ «Донской» ; Russian sturgeon ; Don Sturgeon Hatchery ; Temryuk Sturgeon Hatchery ; Acipenser gueldenstaedtii ; ASFA_2015::M::mtDNA
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: pp.222-228
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  • 52
    Publication Date: 2024-01-10
    Description: A short beaked common dolphin was found stranded on March 3rd 2021, on Hammamet beach (Central-eastern Tunisia). This is a rare stranding event since it represents the third documented stranded individual reported on Tunisian coastline for half a century. Necropsy of the freshly dead female dolphin was conducted to know the presumable cause of death. The pregnant dolphin was bearing a mid-term female fetus with fully developed organs. Detailed biometric data were taken for both individuals. Samples were collected and preserved in the tissue bank of the national stranding network. The freshly dead fetus is preserved at the oceanographic museum for scientific collection. The rare stranding of this species observed here would be attributed to the small population frequenting Tunisian waters. This note improves knowledge on this poorly studied species in the south-central Mediterranean area.
    Description: Published
    Description: Refereed
    Keywords: dolphin ; Delphinus delphis ; stranding ; Records ; necropsy
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: 99-105
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  • 53
    Publication Date: 2024-01-10
    Description: Over the course of the monitoring surveys conducted in 2021–2022, the specific features of the starry sturgeon reproduction have been investigated, which covered the span from the adaptation of breeders to the release of juveniles into a natural water body. The results of this study indicate that the starry sturgeon females from the broodstock have low reproduction capacity, as well as decreased embryo survival rates and larvae yield. The starry sturgeon juveniles reared in tanks were characterized by low growth rates, decreased feed conversion efficiency, and acceptable physiological status. It has been shown that rearing the starry sturgeon juveniles in tanks is less expedient than using a combined method.
    Description: В ходе мониторинговых работ, проводимых в 2021–2022 гг., были рассмотрены особенности воспроизводственного процесса севрюги: от выдерживания производителей до выпуска молоди в естественный водоем. Результаты исследования показали, что самки севрюги из ремонтно-маточного стада обладают невысоким репродуктивным потенциалом, выживаемость эмбрионов и выход личинок снижены. Молодь севрюги, выращиваемая в бассейнах, характеризовалась невысоким темпом роста, сниженными показателями трансформации пищи, удовлетворительным физиологическим состоянием. Показано, что выращивание молоди севрюги бассейновым методом менее эффективно, чем комбинированным.
    Description: Published
    Description: Non Refereed
    Keywords: Rearing techniques ; Starry sturgeon ; Breeders ; Севрюга ; Производители ; Молодь ; Рыбоводные показатели ; Физиологическое состояние ; Кормовой коэффициент ; Интенсивность питания ; Репродуктивный потенциал ; Рыбоводно-биологическая характеристика ; ASFA_2015::F::Fish physiology ; ASFA_2015::F::Feed efficiency ; ASFA_2015::R::Reproduction ; ASFA_2015::J::Juveniles
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: pp.216-221
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  • 54
    Publication Date: 2024-01-09
    Description: The blue jack mackerel, Trachuruspicturatus, is a commercially important resource in the Mediterranean Sea and the North-East Atlantic. The main aim of this work was to assess the infection levels and diversity of the ectoparasites of the blue jack mackerel.Over a one-year period, between March 2017 and February 2018, 126 specimens of T. picturatuswere collected seasonally from the Bizerte coast (Tunisia). The ectoparasite fauna of the examined host was composed ofthe two monogenean species, Pseudaxinetrachuriand Gastrocotyletrachuriand a copepod species,Peniculusfistula fistula. This is the first record of thiscopepod parasite inTunisia. The analysis revealed that the infection levels fluctuated throughout the year. Both monogeneans (P. trachuriand G. trachuri) had high prevalences during the warm season (P%=87.1, P%= 32.3, respectively). Additionally, P. trachurishowed some seasonal variations in mean abundance and mean intensity between summer and the other seasons. Furthermore, there was a highly significant variation in the mean abundance of G. trachuribetween the summer and autumn-winter seasons. The resultsof the current study may be explained by the seasonal variations in environmental conditions, the life cycles of the hosts and parasites, the feeding and migratory patterns of the hosts, the chemicals released by the hosts, and the interspecific competition between the two monogenean species.
    Description: Published
    Description: Refereed
    Keywords: Trachurus picturatus ; seasonal variability ; parasitological indices
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: 59-68
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  • 55
    Publication Date: 2024-01-09
    Description: The aim of this study is to investigate thegonadal changes of striped red mullet (MullussurmuletusLinnaeus, 1758) in Rafraf –Sidi Ali Mekki region in Tunisia. A total of 243specimens were collected monthlybetween March 2014 and February 2015.Fulton’s condition factor (K) and the length-weight parameters were estimated. There was correlation between the fish total length and weight (R2:0.75). The K values ranged between 0.93 and 3.38. The values of b parameter ranged from 3.18. gonadosomaticand hepatosomatic indicesshow maximum values during April. Different stages in females and inmales were observed according to gonadal development.
    Description: Published
    Description: Refereed
    Keywords: length-weight relationship ; histology ; gonad development ; Mullus surmuletus
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: 49-58
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  • 56
    Publication Date: 2024-01-09
    Description: On July 2021, one specimens of Alopias superciliosus Lowe,1841 was captured as bycatch in Kelibia (Tunisia) at the following coordinate 36°30’740” N; 11°48’451” E, by a trawler at 400 m depth. It was a mature male of 350 cm total length and 159 kg in eviscerated weight. This represents the first record of the bigeye thresher shark in the area.
    Description: Published
    Description: Refereed
    Keywords: Elasmobranchii ; Records ; Alopias superciliosus
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: 86-93
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  • 57
    Publication Date: 2024-01-09
    Description: Biological invasions are widely acknowledged as a serious threat to biodiversity, but the role of parasites in marine ecosystem processes is still poorly understood. The so-called Lessepsian migration, or invasions through the Suez Canal from the Red Sea to the Mediterranean Sea, also fits this description. Here, we studied the parasitofauna of Fistularia commersonii collected from the Gulf of Gabès of Tunisia. 43 individuals of F. commersonii were sampled from the Gulf of Gabès. Parasite richness, prevalence and intensity were investigated, Additionally, we reviewed the literature to identify native and invasive parasite species recorded. Our results suggest the co-introduction of nine parasite species that are assumed to be originate from the Red Sea. In addition, we found that the invasive fish has acquired nineteen parasite species that are native from the Mediterranean Sea. The Lessepsian migrant may potentially change the dynamics of native and invasive parasite-host interactions through parasite co-introduction and parasite acquisition, according to these results. The higher F. commersonii infection rates in the area that has been invaded are also consistent with the predictions made by the "Enemy Release Hypothesis." These results show the importance of using community studies, such as the one described here, to understand the role of parasites in Lessepsian migration.
    Description: Published
    Description: Refereed
    Keywords: Metazoan parasites ; Lessepsian migration ; Fistularia commersonii
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: 69-78
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  • 58
    Publication Date: 2024-01-09
    Description: This study employs a multimethod approach to investigate the sediment distribution in two pocket beaches, Ramla Beach and Mellieha S Beach, in Malta. Both study sites were digitally reconstructed using unmanned aerial vehicle (UAV) photogrammetry. For each case, an ERT and a dense network of ambient seismic noise measurements processed through a horizontal-to-vertical spectral ratio (HVSR) technique were acquired. Electrical resistivity tomography (ERT) analysis enables the estimation of sediment thickness in each beach. HVSR analysis revealed peaks related to beach sediments overlying limestone rocks in both sites and also indicated a deeper stratigraphic contact in Mellieha S Beach. Based on ERT measurements, sediment thickness is calculated for each HVSR measurement. Interpolation of results allows for bedrock surface modelling in each case study, and when combined with digital terrain models (DTMs) derived from photogrammetric models, sediment volumes are estimated for each site. The geometry of this surface is analyzed from a geological perspective, showing structural control of sediment distribution due to a normal fault in Mellieha S Beach and stratigraphic control facilitated by a highly erodible surface in Ramla Beach. The results emphasize the importance of adopting a three-dimensional perspective in coastal studies for precise sediment volume characterization and a deeper understanding of pocket beach dynamics. This practical multimethod approach presented here offers valuable tools for future coastal research and effective coastal management, facilitating informed decision making amidst the growing vulnerability of coastal zones to climate change impacts.
    Description: This work was partially supported by the project Satellite Investigation to study POcket BEach Dynamics (SIPOBED, SRF-2021-2S1, PI: Sebastiano D’Amico),the project Multi-disciplinary monitoring system for a resilient management of coastal areas (REMACO) funded by the INTERREG V A–Italy-Malta Capitalization Programme, the INGV Project “Ricerca 703 Libera” BR2019.23 (“Unveiling silent faults in low strain-rates regions through the integration 704 of high-resolution geophysical and seismological analyses” P.I. Fabio Villani), and by the Internationalisation Partnership & Awards Scheme Plus (IPAS+) supported by the Malta Council for Science and Technology through the project “Near-surface geophysics and geomatic applied to coastal systems” (IPAS-2022-020).
    Description: Published
    Description: 40
    Description: OSA4: Ambiente marino, fascia costiera ed Oceanografia operativa
    Description: JCR Journal
    Keywords: horizontal-to-vertical spectral ratio; seismic ambient noise; pocket beach; Malta; near-surface geophysics; electrical resistivity tomography; photogrammetry ; 05.04. Instrumentation and techniques of general interest
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 59
    Publication Date: 2024-01-09
    Description: This study investigates crustal accretion processes along the northern stretch of the Mid-Atlantic Ridge (MAR) between the Charlie Gibbs (52°-53°N) and Bight (57°N) transforms. These long-lived transform systems, active for more than 40 Ma, bound a ~ 550 km-long MAR segment influenced to the South by the Azores and to the North by the Iceland mantle plumes. The Bight transform is located at the tip of the Reykjanes Ridge, where the spreading direction, influenced by the southward propagation of the Iceland plume, changes from oblique (30° to the axis) to perpendicular to the axis. Four hundred kilometres to the south, the MAR is offset by the Charlie Gibbs transform system consisting of two long-lived right-lateral transform faults linked by a short ~ 40 km-long spreading segment. Previous expeditions surveyed large areas of these two transform systems, defining their main morphological features. Based on these bathymetric data, Expedition V53 of the R/V A.S. Vavilov carried out an intense dredging program coupled with magnetic surveys in an area spanning from 57° to 52°N, covering both the Bight and the Charlie Gibbs transform systems. We collected 1850 kg of rock samples including limestones, basalts, gabbros and mantle peridotites from 27 dredging sites, along with two 6-m long sedimentary cores. The sampled lithologies are globally in agreement with the contrasting morphological features of the two transform faults. We discuss here and compare the geology of these two major transform systems and assess the influence of the Icelandic plume on seafloor morphology at the Bight Fracture Zone.
    Description: Published
    Description: 13-30
    Description: OSA1: Variazioni del campo magnetico terrestre, imaging crostale e sicurezza del territorio
    Description: JCR Journal
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 60
    Publication Date: 2024-01-09
    Description: Site effects refer to the modification of ground shaking caused by the local geological con- ditions that can result in the strong amplification of ground motion. The best-known cause for site effects is the presence of superficial soft soil deposits, which are considered in seismic design codes of many countries through the use of scaling factors. Rock sites are assumed to show no local site amplification. However, even at rock sites, seismic waves can be locally amplified at frequencies of engineering interest, with larger motion along one site-specific azimuth on the horizontal plane (the so called “directional site resonance or amplification”). These effects have been related to the pres- ence of large-scale open cracks or microcracks in different geological environments (faults, land- slides, volcanic areas) everywhere with a common signature: maximum amplification occurs trans- verse to the predominant fracture strike. In this paper, we summarize our main results obtained in the last decade with regard to several fault zones with different kinematics, where ground motion is polarized (and amplified) perpendicularly to the predominant fracture field as an effect of the stiffness anisotropy. In order to give a further constraint, we also show some cases where the direc- tional amplification effects were compared with the S-wave splitting analysis method.
    Description: Published
    Description: 6060
    Description: OST2 Deformazione e Hazard sismico e da maremoto
    Description: JCR Journal
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 61
    Publication Date: 2024-01-09
    Description: Radio frequency (RF) signals transmitted by Global Navigation Satellite Systems (GNSSs) are exploited as signals of opportunity in many scientific activities, ranging from sensing waterways and humidity of the terrain to the monitoring of the ionosphere. The latter can be pursued by processing the GNSS signals through dedicated ground-based monitoring equipment, such as the GNSS Ionospheric Scintillation and Total Electron Content Monitoring (GISTM) receivers. Nonetheless, GNSS signals are susceptible to intentional or unintentional RF interferences (RFIs), which may alter the calculation of the scintillation indices, thus compromising the quality of the scientific data and the reliability of the derived space weather monitoring products. Upon the observation of anomalous scintillation indices computed by a GISTM receiver in the Mediterranean area, the study presents the results of the analysis and characterization of a deliberate, unclassified interferer acting on the L1/E1 GNSS signal bands, observed and captured through an experimental, software-defined radio setup. This article also highlights the adverse impacts of the interferer on the amplitude scintillation indices employed in scientific investigations, and presents a methodology to discriminate among regular and corrupted scintillation data.
    Description: Published
    Description: 8230 - 8248
    Description: OSA3: Climatologia e meteorologia spaziale
    Description: JCR Journal
    Keywords: Global Navigation Satellite System (GNSS) ; Radio Frequency Interferences ; Ionospheric Monitoring ; Ionospheric Scintillation ; 01.02. Ionosphere ; 05.04. Instrumentation and techniques of general interest
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 62
    Publication Date: 2024-01-09
    Description: A common practice of seismology is to analyze earthquake occurrence in terms of events catalogues, with the aim to either find useful correlations between internal mechanisms under study and their outcome in the spatial/temporal series of the events or, more directly, to assess some statistical rules from observations. With this approach, catalogues are often searched for some recognizable patterns or behaviors: in this work we present a software tool created to reveal a particular kind of events sequences. The idea follows from the concept of multiplets, a well known events pattern often found in seismic series. A multiplet is defined as a sequence of events, all near in space and time and exhibiting similar magnitudes. The amount of multiplets in seismic series is related, as it is for other clustering mechanisms, to underlying correlations in the physics of the events. The software, built from scratch, scans seismic catalogues in search of events clustered as “multiplets”: this is done through the thorough application of comparison tests whose parameters thresholds are both user defined and semi-automated. The tool is however more “general” in the sense that by varying values of the filtering parameters it can reveal other kind of patterns too. While we think that this tool can be thought as a general purpose space–time series analyzer, we have found it particularly useful when applied to the results of a seismic simulator with the purpose of assessing their adherence with the observed seismicity. It can be used as a sort of metric to quantify the simulation predictions effectiveness in terms of presence of similar multiplets distributions in simulated vs. real catalogues. The software has been entirely developed in the Wolfram Language (Mathematica), a commercial powerful environment for scientific calculus and results report, but the main computational routine has been also ported to python for open-source, copyleft usage.
    Description: Published
    Description: 105496
    Description: OST5 Verso un nuovo Monitoraggio
    Description: JCR Journal
    Keywords: seismic multiple events ; 05.01. Computational geophysics
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 63
    Publication Date: 2024-01-09
    Description: Understanding whether fractures and faults impact the CO2 migration through the overburden is critical in the evaluation and monitoring of CO2 geological storage sites. We present a numerical model and workflow to describe the hydraulic behaviour of a fault located in the shallow part of the overburden. This helps to evaluate the sealing potential of the system in case of unwanted CO2 migration toward the surface and to design an efficient monitoring plan. The model configuration is representative of several experiments performed at real sites under quite shallow conditions (50–500 m). The model results, applied to a selected fault outcropping in the Apennines (Italy), show that most of the gas migrates through the high permeable footwall damage zone. A significant amount of gas then dissolves into the water, emphasizing the importance of accurate modelling to assess the hazard of CO2 leakage into near-surface aquifers or to the surface. The occurrence of pressure buildup close to the fault core points out that detailed modelling of the migration conditions is required to predict gas path through a fault zone.
    Description: Published
    Description: petgeo2022092
    Description: OSA5: Energia e georisorse
    Description: JCR Journal
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 64
    Publication Date: 2024-01-09
    Description: We present the first high-resolution ultrashallow seismic image of a normal fault segment that ruptured the surface during the Mw 6.5 2016 Norcia earthquake (central Italy). This is the only fault, in the entire activated 25 km-long system, cutting a thick succession of Quaternary deposits, with an associated 3-m-high cumulative scarp. A 190-m-long profile crossing the fault was acquired and analyzed combining reflection seismic, non-linear multiscale refraction P-wave tomography and multi-channel analysis of surface waves. The joint interpretation of the seismic reflection, P- and S-wave velocity images unravels a 100-m-thick sequence of sandy-gravel alluvial fans, disrupted by a main normal fault zone, named as Valle delle Fonti fault (Vf1), which branches upward into three splays. The eastern splay of Vf1 matches with the 2016 coseismic surface rupture. Near-surface truncated reflections and growth strata in the hanging wall of the western and intermediate splays attest to their activity in Late Pleistocene-Holocene times. We also detect an additional normal fault in the footwall of Vf1, probably inactive since the Late Pleistocene. Comparing the seismic images with the Poisson's coefficient model and with the results of a previous electrical resistivity tomography, we constrain the lithology and the hydraulic behavior of the uppermost 50 m of the fault. A steep, W-dipping zone with high-Vp, very high Poisson's coefficient and low resistivity correlates with the eastern splay of Valle delle Fonti fault and unravels a water-saturated region. These results suggest that the fault zone may act as a partial barrier for horizontal fluid flow. Our findings indicate that the active fault zone detected by seismic imaging is much wider than what previously estimated from surface geological analyses. In terms of surface faulting hazard, this study confirms the effectiveness of high-resolution seismic surveys in defining the geometry and physical properties of active fault zones.
    Description: Published
    Description: 229733
    Description: OST3 Vicino alla faglia
    Description: OSA1: Variazioni del campo magnetico terrestre, imaging crostale e sicurezza del territorio
    Description: JCR Journal
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 65
    Publication Date: 2024-01-09
    Description: We analyze the interplay between hydrology, deformation and seismicity in the Matese massif, located in the Italian Southern Apennines. We find that this area is characterized by the concurrent action of two hydrologically-driven processes: the first is the deformation detected by GNSS data in the shallowest part (above the elevation of the major springs) of the Earth crust, in phase with the hydrological forcing; the second is the triggering of seismicity at depth with a delay suggesting a downward diffusive process. We study the first process by applying a Principal Component Analysis to the GNSS displacements time series, aiming to identify a common signal describing the largest data variance. We find that the maximum horizontal displacements associated with the first principal component (PC1) are larger than 1 cm in two GNSS sites and the PC1 temporal evolution is well correlated and in phase with the flow of the largest spring of the region, which we consider as proxy of the water content of the massif. This suggests that the main source of horizontal deformation is the water content fluctuations in the shallow portion of the Matese aquifer, in particular within fractures located in correspondence of the main mapped faults. The deformation rates caused by this process are one order of magnitude larger than the tectonic ones. Finally, we infer the second process by observing the correlation between the background seismicity and the spring discharge with a time lag of 121 days. In our interpretation, downward diffusive processes, driven by aquifer water content variations, propagate pore pressure waves that affect the faults strength favoring the occurrence of micro-earthquakes. This is supported by the values of hydraulic diffusivity (1.5 m^2/s) and rock permeability (3.2-3.8⋅10^−13 m^2), which are compatible with what is observed in karstified limestones.
    Description: In press
    Description: OST2 Deformazione e Hazard sismico e da maremoto
    Description: JCR Journal
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 66
    Publication Date: 2024-01-09
    Description: The Tonga-Kermadec subduction zone represents one of the most active areas from both seismic and volcanic points of view. Recently, two planetary-scale geophysical events took place there: the 2019 M7.2 earthquake (EQ) with the epicentre in Kermadec Islands (New Zealand) and the astonishing 2022 eruption of Hunga Tonga-Hunga Ha’apai (HTHH) volcano. Based on the Lithosphere-Atmosphere- Ionosphere Coupling (LAIC) models, we analysed the three geolayers with a multiparametric approach to detect any effect on the occasion of the two events, through a comparison aimed at identifying the physics processes that interested phenomena of different nature but in the same tectonic context. For the lithosphere, we conducted a seismic analysis of the sequence culminating with themain shock in Kermadec Islands and the sequence of EQs preceding the HTHH volcanic eruption, in both cases considering the magnitude attributed to the released energy in the lithosphere within the respective Dobrovolsky area. Moving to the above atmosphere, the attention was focused on the parameters—gases, temperature, pressure—possibly influenced by the preparation or the occurrence of the events. Finally, the ionosphere was examined by means of ground and satellite observations, including also magnetic and electric field, finding some interesting anomalous signals in both case studies, in a wide range of temporal and spatial scales. The joint study of the effects seen before, during and after the two events enabled us to clarify the LAIC in this complex context. The observed similarities in the effects of the two geophysical events can be explained by their slightly different manifestations of releasing substantial energy resulting from a shared geodynamic origin. This origin arises from the thermodynamic interplay between a rigid lithosphere and a softer asthenosphere within the Kermadec-Tonga subduction zone, which forms the underlying tectonic context.
    Description: Published
    Description: 1267411
    Description: OSV2: Complessità dei processi vulcanici: approcci multidisciplinari e multiparametrici
    Description: JCR Journal
    Keywords: 2019 Kermadec Islands earthquake ; 2022 Hunga Tonga-Hunga Ha’apai eruption ; LAIC models ; Swarm satellites ; CSES-01 satellite ; Kermadec-Tonga subduction area ; 04.08. Volcanology ; 04.06. Seismology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 67
    Publication Date: 2024-01-09
    Description: In this paper we present the new high-resolution magnetic anomaly map of the La Fossa Caldera system and Lipari island (Southern Italy), obtained by merging two low-altitude aeromagnetic surveys. In these islands a variegated ensemble of magnetic anomalies develops in the north-south direction. The La Fossa Caldera is characterized by very high-intensity and short-wavelength magnetic anomalies, related to mafic intrusive/effusive sources, mainly aligned along the NNW-SSE and NS faults. Instead, the Lipari island is characterized by lower intensity anomalies related to sources with more evolved chemistry, elongated in the NE-SW, NNE-SSW and EW of the subordinate faults. Both the two sets of structures belong to the Tindari-Letojanni strike slip fault-system, a regional lineament along which the southern side of the Aeolian Archipelago is emplaced. The study identifies three distinctive magnetic zones on the Lipari island: the southern, the central, and the north-western ones. The southern zone is characterized by negative magnetic monopoles in correspondence with the younger rhyolitic domes and a Curie Isotherm upwelling. The central part of the island has an average lower intensity of positive anomalies, corresponding to the less evolved products of the intermediate Lipari volcanic epochs. The north-western side is characterized by higher intensity anomalies related to older volcanic epochs. The interplay among strike-slip tectonics, chemistry of the uprising magmas, and the thermal setting has contributed to the overall anomaly pattern in this sector of the Aeolian Archipelago. This interpretation is supported by the application of digital enhancement to the total intensity magnetic anomaly field and by the spatial correlation analysis of the magnetic and volcano-tectonic features. The obtained insights are useful to better understand the relationship between arc volcanism and tectonics. Moreover, they can also outline new inferences to forecast future eruptions of the active La Fossa volcanic system. In fact, recent unrest signals were registered at La Fossa Cone, which is one of the present-day active volcanoes of the Aeolian Archipelago, along with Stromboli island.
    Description: Published
    Description: 107823
    Description: OSA1: Variazioni del campo magnetico terrestre, imaging crostale e sicurezza del territorio
    Description: JCR Journal
    Keywords: Aeolian Archipelago ; Magnetic anomalies ; Strike slip Tectonics ; 04.05. Geomagnetism
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 68
    Publication Date: 2024-01-10
    Description: We investigate the role of auroral particle precipitation in small-scale (below hundreds of meters) plasma structuring in the auroral ionosphere over the Arctic. In this scope, we analyze together data recorded by an Ionospheric Scintillation Monitor Receiver (ISMR) of Global Navigation Satellite System (GNSS) signals and by an All-Sky Imager located in Longyearbyen, Svalbard (Norway). We leverage on the raw GNSS samples provided at 50 Hz by the ISMR to evaluate amplitude and phase scintillation indices at 1 s time resolution and the Ionosphere-Free Linear Combination at 20 ms time resolution. The simultaneous use of the 1 s GNSS-based scintillation indices allows identifying the scale size of the irregularities involved in plasma structuring in the range of small (up to few hundreds of meters) and medium-scale size ranges (up to few kilometers) for GNSS frequencies and observational geometry. Additionally, they allow identifying the diffractive and refractive nature of fluctuations on the recorded GNSS signals. Six strong auroral events and their effects on plasma structuring are studied. Plasma structuring down to scales of hundreds of meters is seen when strong gradients in auroral emissions at 557.7 nm cross the line of sight between the GNSS satellite and receiver. Local magnetic field measurements confirm small-scale structuring processes coinciding with intensification of ionospheric currents. Since 557.7 nm emissions primarily originate from the ionospheric E-region, plasma instabilities from particle precipitation at E-region altitudes are considered to be responsible for the signatures of small-scale plasma structuring highlighted in the GNSS scintillation data.
    Description: Published
    Description: e2023SW003605
    Description: OSA3: Climatologia e meteorologia spaziale
    Description: JCR Journal
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 69
    Publication Date: 2024-01-10
    Description: A 2-year dataset of a stand-alone mooring, deployed in November 2020 down the Levante Canyon in the eastern Ligurian Sea, is presented. The Levante Canyon Mooring (LCM) is a deep submarine multidisciplinary observatory positioned at 608 m depth in a key ecosystem area. The Levante Canyon hosts a valuable and vulnerable ecosystem of deep-living cold-water corals (CWCs), studied and monitored since 2013 through integrated mapping of the seabed and water column. The 2-year dataset, acquired on the mooring and presented here (data from November 2020 to October 2022), includes measurements conducted with both current meters and conductivity–temperature–depth (CTD) probes and provides information about the hydrodynamics and thermohaline properties across almost the entire water column. The observatory is still ongoing, and the dataset is regularly updated. All the described data are publicly available from https://doi.org/10.17882/92236 (Borghini et al., 2022). They must therefore be preserved and are of considerable scientific interest.
    Description: This research has been supported by the Distretto Ligure delle Tecnologie Marine (DLTM) through funding obtained from Regione Liguria (PAR-FSC 2007–2013 funds) and by institutional funds from Consiglio Nazionale delle Ricerche – Istituto di Scienze Marine (CNR-ISMAR), Agenzia nazionale per le nuove tecnologie, l’energia e lo sviluppo economico sostenibile (ENEA), Istituto Idrografico della Marina (IIM) and Istituto Nazionale di Geofisica e Vulcanologia (INGV).
    Description: Published
    Description: 1933–1946
    Description: OSA4: Ambiente marino, fascia costiera ed Oceanografia operativa
    Description: JCR Journal
    Keywords: submarine canyon ; oceanography ; mooring ; dataset ; 03. Hydrosphere ; 05.02. Data dissemination
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 70
    Publication Date: 2024-01-11
    Description: This article presents the results of fish resource assessment conducted in 2021–2022 in the Veselovsky Reservoir and characterizes its major commercial fish species. The results of the investigation of the commercial fish stocks in the Veselovsky Reservoir characterize the physiological status of the populations as good based on a number of parameters (visceral fatness, conditional factor, fertility), which results from the abundance and diversity of the food supply and favorable environmental conditions. In the past two years, a noticeable increase in the stock abundance of commercial fish species has been observed in the Veselovsky Reservoir, which provides the ground to expect the formation of a stable resource for commercial fishing in the near future.
    Description: В статье приведены результаты сырьевых исследований, выполненных в 2021–2022 гг. в Веселовском водохранилище. Дана характеристика основных промысловых видов рыб. Результаты проведенных исследований состояния запасов промысловых рыб в Веселовском водохранилище свидетельствуют о хороших физиологических характеристиках рыб (высокие показатели ожирения внутренностей, коэффициентов упитанности, плодовитости), обусловленных обилием и разнообразием кормовой базы и благоприятными условиями среды обитания. В последние два года в Веселовском водохранилище наблюдается заметное увеличение запасов промысловых видов рыб, что позволяет прогнозировать создание устойчивой базы для промышленного рыболовства в ближайшем будущем.
    Description: Published
    Description: Non Refereed
    Keywords: Состояние популяций рыб ; Промысловая ихтиофауна ; Нерест ; Нагульный период ; Промысловый запас ; Commercial fish stocks ; Commercial fish species ; Fertility ; Condition factor ; Commercial fishing ; Тарань ; Карась ; Окунь ; Судак ; Красноперка ; ASFA_2015::S::Spawning ; ASFA_2015::F::Fish stocks ; ASFA_2015::F::Feeding
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: pp.118-127
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  • 71
    Publication Date: 2024-01-11
    Description: Specific features of the development of the wind regime in the coastal waters near Tuapse, Black Sea, have been investigated. The average and extreme characteristics of the wind regime (speed, direction, repeatability, strong winds, windless situations, local winds) are given.
    Description: Рассмотрены особенности формирования ветрового режима Черного моря в прибрежном районе г. Туапсе. Приведены средние и экстремальные характеристики ветрового режима (скорость, направление, повторяемость, сильные ветры, штилевые ситуации, местные ветры).
    Description: Published
    Description: Non Refereed
    Keywords: Windless situations ; Interannual variability ; Ветровой режим ; Повторяемость ветра ; Градация скорости ; Роза ветров ; Штилевые ситуации ; Межгодовая изменчивость ; Speed gradation ; Wind regime ; Wind repeatability ; Среднегодовая скорость ; Среднемноголетняя повторяемость ; ASFA_2015::W::Wind direction ; ASFA_2015::W::Wind constancy ; ASFA_2015::W::Wind roses ; ASFA_2015::Y::Year to year variations
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: pp.137-145
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  • 72
    Publication Date: 2024-01-11
    Description: Crayfish is a long-established fisheries target in the water bodies of the Rostov Region. This work presents the data characterizing the pollution of water and bottom sediments with petroleum products, organochlorine pesticides, and heavy metals. The changes in the biological parameters of the crayfish population in the reservoir have been reviewed. The status of crayfish population, their stocks and abundance in the reservoir are conditional upon the existing range of abiotic and anthropogenic factors. The ecological improvement of the environment in 2020–2022 and the low concentrations of petroleum products, organochlorine pesticides and heavy metals facilitated the recovery of the crayfish exploitable stock that reached 32.9 t in 2022. In the consistently favourable conditions, under a regular monitoring of the productive crayfish populations, sustainable exploitation of their stocks and responsible control over their harvesting implemented by the fisheries protection authorities, this reservoir will retain its crayfish commercial importance.
    Description: Раки — традиционный объект промысла в водных объектах Ростовской области. В работе представлены материалы, характеризующие загрязнение воды и донных отложений нефтепродуктами, хлорорганическими пестицидами и тяжелыми металлами. Дан обзор изменений биологических параметров популяции раков в водохранилище. Состояние популяции раков, их численность и запасы в водохранилище определяет сложившийся комплекс абиотических и антропогенных факторов. Улучшение экологической ситуации в 2020–2022 гг. и низкие концентрации нефтепродуктов, хлорорганических пестицидов и тяжелых металлов способствовали восстановлению промыслового запаса к 2022 г. до уровня 32,9 т. В стабильно благоприятных трофических условиях, при систематическом мониторинге ракопродуктивных популяций, рациональном использовании запасов раков и ответственном контроле промысла в водохранилище органами рыбоохраны водохранилище сохранит ракопромысловый статус.
    Description: Published
    Description: Non Refereed
    Keywords: Crayfish population structure ; Exploitable stock ; Среда обитания ; Промысловый запас ; Структура популяции ; Загрязнение ; Степень зарастаемости ; Гидрологический режим ; Общая минерализация воды ; Состояние популяции ; Речные раки ; Оценка загрязнения ; Изменение среднесуточной температуры ; Размерная структура ; ASFA_2015::A::Abiotic factors ; ASFA_2015::S::Stock assessment ; ASFA_2015::C::Crustacean fisheries ; ASFA_2015::P::Population structure
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: pp.128-136
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  • 73
    Publication Date: 2024-01-11
    Description: The analysis of data series on average monthly and annual amounts of atmospheric precipitation in the coastal part of the Tuapse region of the Black Sea is carried out. The trends of atmospheric precipitation variability over a 70-year observation period were evaluated.
    Description: Выполнен анализ рядов данных по среднемесячным и годовым суммам атмосферных осадков в прибрежной части Туапсинского района Черного моря. Выполнена оценка тенденций изменчивости атмосферных осадков за 70-летний период наблюдений.
    Description: Published
    Description: Non Refereed
    Keywords: Monthly and annual amounts ; Interannual variability ; Атмосферные осадки ; Экстремальные значения ; Сравнение с нормой ; Межгодовая изменчивость ; Среднемноголетние значения ; ASFA_2015::P::Precipitation (meteorology) ; ASFA_2015::Y::Year to year variations ; ASFA_2015::E::Extreme values
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: pp.146-152
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  • 74
    Publication Date: 2024-01-11
    Description: The wave regime of the coastal waters in the Southeastern Russian sector of the Black Sea has been described based on the data of the wave-measuring station located in the area adjacent to Tuapse. The data of observations for the time range from 1975 to 2005 were used. Such characteristics as wave types, fetch lengths, wave type repeatability by month and direction, wave repeatability for the waves of different heights, the number of days with storm wave action, and the duration of storm wave conditions have been investigated. It is shown that the sea wave action in the coastal waters near Tuapse is determined by the observed wind, the influence of open sea waves, as well as by the orography of the sea port area, open to the wave systems from the southwest, south, and, to a lesser extent, from the west.
    Description: Описан режим волнения в прибрежной части юго-восточного района российского сектора Черного моря по данным волномерного поста, расположенного в районе г. Туапсе. Использованы данные наблюдений за период 1975–2005 гг. Изучены такие характеристики, как типы волнения, длина разгона волн, повторяемость типов волнения моря по месяцам и по направлениям, повторяемость волн различной высоты, число дней со штормовым волнением, продолжительность штормовых волнений. Показано, что волнение моря в прибрежном районе Туапсе определяется наблюдаемым ветром, влиянием волнения открытого моря, а также орографией акватории порта, доступной для систем морских волн от юго-запада, юга, в меньшей степени — от запада.
    Description: Published
    Description: Non Refereed
    Keywords: Wave activity ; Wave type ; Wave parameters ; Fetch length ; Repeatability ; Storm wave action ; Волновая активность ; Волно-ветровые условия ; Тип волнения ; Параметры волнения ; Длина разгона ; Повторяемость ; Штормовое волнение ; ASFA_2015::E::Extreme waves ; ASFA_2015::W::Wave amplitude ; ASFA_2015::W::Wave dynamics ; ASFA_2015::S::Significant wave height
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: pp.153-158
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  • 75
    Publication Date: 2024-01-11
    Description: Benthic organisms are among the crucial components of an aquatic ecosystem, taking part in the circulation of matter and facilitating self-purification processes in water bodies. A number of researchers indicate a positive correlation between the content of toxicants in benthic organisms and their habitat, which leads to recommendations to use various species of bottom invertebrates as indicators for the pollution monitoring of aquatic ecosystems. Molluscs accumulate hydrocarbons (HC) at a higher rate than they excrete them from their body due to the absence or, at least, low development of the hydrocarbon hydroxylase detoxification system. Bivalve molluscs Mytilus galloprovincialis, a species actively involved in the filtration of the bottom water layer and coming into contact with polluted substrate, served as a subject for this investigation. This mollusc species is a valuable food source; as a part of the Azov and Black Sea zoobenthos community, it is widely spread and abundant. The experiments have been conducted on M. galloprovincialis individuals of the average length of 3–4 cm cultivated on the mussel collectors in the acceptably pure waters in the area near Bolshoy (Big) Utrish Cape. Two series of the experiments with different exposition time have been conducted: the short-term one (5 days) and a longer one (21 days). During the experiments, the bottom sediments (BS) of various pollution level were used: 0.03, 0.5, 0.6, 1.0, 2.5, and 5.0 g/kg petroleum products, dry weight. Following the laboratory tests, it has been found that the dynamics of accumulation and subsequent extraction of hydrocarbons from the soft tissues in mussel is dependent on the pollution level of bottom sediments.
    Description: Бентосные организмы относятся к важнейшим компонентам водной экосистемы, участвующим в круговороте веществ и самоочищении водоема. Рядом авторов отмечена положительная корреляция между содержанием токсикантов в бентосных организмах и местом их обитания, в связи с чем часто предлагается использовать различные виды донных беспозвоночных в качестве индикаторов при мониторинге загрязнения водных экосистем. Моллюски легко аккумулируют, но сравнительно медленно выводят углеводороды (УВ) из организма в связи с отсутствием или, по крайней мере, слабым развитием углеводород-гидроксилазной детоксицирующей системы. Объектом исследования служили двустворчатые моллюски вида Mytilus galloprovincialis, которые активно участвуют в процессе фильтрации придонной воды и контактируют с загрязненным грунтом. Этот вид моллюсков, имеющий кормовую ценность, широко распространен среди организмов зообентоса Азовского и Черного морей. В экспериментах использован M. galloprovincialis среднего размера длиной 3–4 см, выращенный на коллекторах в условно чистом районе вблизи м. Б. Утриш. Проведены две серии экспериментов с различной экспозицией: краткосрочная (5 суток) и более длительная (21 сутки). В экспериментах использовали донные отложения (ДО) различной степени загрязненности: 0,03; 0,5; 0,6; 1,0; 2,5 и 5,0 г/кг сухой массы нефтепродуктов (НП). В ходе лабораторных экспериментов установлено, что в мягкой ткани мидий динамика накопления и последующего выведения углеводородов зависит от уровня загрязненности донных отложений.
    Description: Published
    Description: Non Refereed
    Keywords: Mytilus galloprovincialis Lamarck, 1819 ; Oil pollution ; Индикаторы ; Нефтяное загрязнение ; Мониторинг ; Бентосные организмы ; Моллюски ; Benthic organisms ; Hydrocarbons ; Bivalve molluscs ; ASFA_2015::P::Pollution control ; ASFA_2015::B::Bioindicators ; ASFA_2015::B::Bioaccumulation
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: pp.192-200
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  • 76
    Publication Date: 2024-01-11
    Description: The 60–80s of the last century were the period of the most rapid development of commercial oceanology in the Azov and Black Sea Scientific Research Institute of Marine Fisheries and Oceanography (AzCherNIRO, further renamed YugNIRO). In addition to the monitoring of oceanographic processes, it was involved in the areas of general marine ecology, monitoring of marine pollution, and space oceanology. Oceanographic information is used in forecasting the state of aquatic ecosystems at various timescales and is crucial for fishing forecasts. In 1981, a satellite data reception center was established in AzCherNIRO. In the 80–90s, in YugNIRO, an optimal procedure was created for multidimensional predictive monitoring of the state of the Black Sea ecosystem. In September 1986, within the Laboratory of Commercial Oceanology of the Black Sea, a group for the conservation of marine ecosystems was created, which turned into a sector in January 1989, and into a separate laboratory in December 1996. Its reasearchers carried out multidisciplinary environmental studies, investigating the ecological status of the aquatic areas affected by the facilities of the marine industry during their operation, monitoring the level of soil contamination, and excercising the toxicological control of fish and fish products. YugNIRO oceanological studies conducted in the World Ocean from the early 1970s to the early 1990s made it possible to link the productivity and catches of exploitable species to the atmospheric circulation, changes in the climatic fields of currents, as well as to the geo- and heliophysical factors, which enabled the fishing predictions with a one-year lead time or more for the fishing areas of the Central, Southeastern and Southwestern Indian Ocean, the Patagonian Shelf, and the Indian Ocean sector of Antarctica. In the 70–90s and early 2000s, YugNIRO conducted marine geological studies facilitating fishing operations and environmental protection in the Gulf of Aden, on the bottom elevations of the tropical and subtropical parts of the Indian Ocean, in the Antarctic Shelf area, and in the Black and Azov Seas. This article lays down the current major goals and prospects of commercial oceanology.
    Description: 60–80-е годы прошедшего столетия были в АзЧерНИРО (ЮгНИРО) периодом наиболее активного развития промысловой океанологии. Кроме мониторинга океанографических процессов она начала внедряться в сферы общей экологии моря, мониторинга загрязнения моря, космической океанологии. Океанографическая информация используется при разработке прогнозов состояния водных экосистем различной заблаговременности и является неотъемлемой составляющей рыбопромысловых прогнозов. В 1981 г. в АзЧерНИРО был создан центр приема спутниковой информации. В 1980–1990-х гг. в ЮгНИРО была создана оптимальная для Черного моря схема комплексного прогностического мониторинга состояния его экосистемы. В сентябре 1986 г. в составе лаборатории промысловой океанологии Черного моря была создана группа, в январе 1989 г. — сектор, в декабре 1996 г. — лаборатория охраны морских экосистем. Сотрудниками лаборатории проводились комплексные экологические исследования состояния акваторий предприятий морехозяйственого комплекса в условиях их производственной деятельности, контроль уровня загрязненности почв, токсикологический контроль рыбы и рыбопродукции. Океанологические исследования ЮгНИРО, проводимые в Мировом океане с начала 1970-х до начала 1990-х гг., позволили получить систему связей урожайности и вылова промысловых объектов с особенностями атмосферной циркуляции, изменениями макромасштабных полей течений, гео- и гелиофизическими факторам для прогноза промысловых характеристик с заблаговременностью год и более в промысловых районах центральной, юго-восточной и юго-западной частей Индийского океана, в районе Патагонского шельфа, в индоокеанском секторе Антарктики. Выполнение морских геологических работ в рыбопромысловых и природоохранных целях проводилось ЮгНИРО в 1970–1990-х и в начале 2000-х гг. в Аденском заливе, на поднятиях тропической и субтропической частей Индийского океана, на шельфе Антарктиды, в Черном и Азовском морях. В статье формулируются основные современные цели и пути развития промысловой океанологии.
    Description: Published
    Description: Non Refereed
    Keywords: Commercial oceanography ; Marine geology ; Ecosystems ; Fisheries ; Промысловая океанография ; Морская геология ; Экосистемы ; АзЧерНИРО ; ЮгНИРО ; Промысловые прогнозы ; Океанографическая информация ; Океанологические исследования ; YugNIRO ; AzCherNIRO ; ASFA_2015::F::Fishery oceanography ; ASFA_2015::F::Forecasting ; ASFA_2015::F::Fishery institutions ; ASFA_2015::M::Monitoring
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: pp.159-169
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  • 77
    Publication Date: 2024-01-11
    Description: Length-weight relationships (LWRs), length-length relationships (LLRs), and condition factor of Pseudotolithus elongatus from the coastal waters of Rivers State, Nigeria, were studied. Specimens were collected from the catches of fishermen using various fishing gear. The dominant length ranged from 20 to 26 cm, with a mean length of 22.65±3.06cm. The monthly length-weight relationship was estimated separately for male and female, with the b values indicating positive allometric growth (b 〉 3.00) in November, January, and February for both male and female. The females experienced negative allometric growth (b 〈 3.00) in December, March, and April, while the males exhibited a negative allometric growth pattern in April. The combined b value of LWRs (TL vs. BW) indicates positive allometric growth, and SL vs. BW indicates negative allometric growth. Also, the b value of LLR (TL vs. SL) indicates negative allometric growth. The condition factors varied for both sexes, ranging from 0.35 to 1.2 in males and 0.57 to 1.14 in females, while the combined condition factor ranged from 0.35 to 1.2. The present findings will provide useful information for a well-organized and significant exploitation and regulation of Sciaenid species following the aftermath of massive fish kills and continuous exploitation of fish species in the study area.
    Description: Published
    Description: Refereed
    Keywords: allometric growth ; condition factor ; Pseudotolithus elongatus ; coastal waters ; ASFA_2015::A::Allometry ; ASFA_2015::C::Condition factor ; ASFA_2015::W::Water ; ASFA_2015::M::Marine Biology ; ASFA_2015::C::Coastal waters ; ASFA_2015::L::Length-weight relationships ; ASFA_2015::L::Length ; ASFA_2015::G::Growth rate
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: 101-112
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  • 78
    Publication Date: 2024-01-11
    Description: Veselovsky, Proletarsky and Krasnodar Reservoirs are located in the area, extensively used for various agricultural purposes. This industry requires the use of means to protect cultivated plants from pests. When land is treated with pesticides, these substances can enter water bodies of fisheries importance through the air and soil, accumulate in bottom sediments and have a negative impact on the vital functions of hydrobionts. Using the method of high-performance liquid chromatography (HPLC), 20 active ingredients (AI) of pesticides of modern classes that are used in agriculture of the region and the half-life of which can exceed six months have been investigated. In preparation for chromatography, pesticides were extracted from the samples of water and bottom sediments with dichloromethane, followed by drying and purification of the extracts. It has been established that the concentrations of pesticide AIs in the aquatic living environment of the investigated reservoirs are more than an order of magnitude lower than the established maximum permissible concentrations (MPCs).
    Description: Веселовское, Пролетарское и Краснодарское водохранилища расположены в регионах с интенсивной и разнообразной сельскохозяйственной деятельностью. Применение средств защиты культурных растений от вредителей является обязательным условием в данном виде производства. При обработке земель пестицидами эти вещества через воздух и почву могут попасть в водоемы рыбохозяйственного назначения, осесть в донных отложениях и оказать негативное влияние на жизнедеятельность гидробионтов. Методом высокоэффективной жидкостной хроматографии (ВЭЖХ) определяли 20 используемых в сельском хозяйстве региона действующих веществ (ДВ) пестицидов современных классов, период полураспада которых может превышать полгода. Для подготовки к хроматографии проводили экстракцию ДВ пестицидов из проб воды и донных отложений дихлорметаном с последующим осушением и очисткой экстрактов. Установлено, что концентрации ДВ пестицидов в среде обитания гидробионтов исследованных водоемов более чем на порядок ниже установленных предельно допустимых концентраций (ПДК).
    Description: Published
    Description: Non Refereed
    Keywords: Active ingredients ; HPLC ; Пестицидное загрязнение ; ПДК ; ВЭЖХ ; Действующие вещества ; Метод высокоэффективной жидкостной хроматографии ; Bottom sediments ; Maximum permissible concentration ; ASFA_2015::P::Pesticides ; ASFA_2015::P::Pollution ; ASFA_2015::H::HPLC
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: pp.201-205
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  • 79
    Publication Date: 2024-01-11
    Description: This work presents the results of long-term assessment of the influence of the Azov Sea salinity changes and predation pressure of the Black Sea gelatinous invading species—ctenophores and scyphozoans—on the development of fodder zooplankton. It is shown that the increase in the salinity of the water body leads to considerable changes in the taxonomic structure of its community. Freshwater and brackish-water species are being replaced by characteristic marine taxa from the Black Sea that are gradually becoming dominant. The number of the species immigrating from the Black Sea is growing; their range extends beyond the Southern Azov Sea. Some of them are rapidly developing far outside the area directly influenced by the Black Sea waters, including Taganrog Bay. The gelatinous predatory ctenophores and jellyfish from the Black Sea start to appear in this water body. Simultaneous development of these species escalates the consumption of fodder zooplankton by invaders. More substantial changes in taxonomic structure of the community are also observed; its development indicators and production are decreasing.
    Description: В работе приведены результаты многолетних исследований по оценке влияния изменения солености Азовского моря и хищничества черноморских желетелых вселенцев — гребневиков и сцифоидных медуз на развитие кормового зоопланктона. Показано, что увеличение солености водоема существенно изменяет таксономическую структуру сообщества. Происходит вытеснение пресноводных и солоноватоводных видов животных типично морскими черноморскими таксонами, которые постепенно приобретают статус доминирующих. Заметно расширяется список черноморских мигрантов, их ареал перестает ограничиваться южной частью Азовского моря. Некоторые из них активно развиваются далеко за пределами наибольшего влияния черноморских вод, включая Таганрогский залив. В водоеме появляются черноморские желетелые хищные гребневики и медузы. При одновременном развитии популяций этих видов выедание кормового зоопланктона вселенцами заметно усиливается. Наблюдаются более существенные изменения таксономической структуры сообщества, снижаются количественные показатели его развития и продукция.
    Description: Published
    Description: Non Refereed
    Keywords: Jellyfish ; Ctenophores ; Численность ; Биомасса ; Медузы ; Гребневики ; Зоопланктон ; Соленость ; Географическое распределение ; Aurelia aurita ; Rhizostoma pulmo ; Mnemiopsis leidyi ; Beroe ovata ; ASFA_2015::Y::Zooplankton ; ASFA_2015::S::Salinity ; ASFA_2015::T::Temperature ; ASFA_2015::P::Population abundance (in number) ; ASFA_2015::B::Biomass ; ASFA_2015::D::Distribution
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: pp.178-191
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  • 80
    Publication Date: 2024-01-11
    Description: The scaldback, Arnoglossus kessleri, is a small fish that belongs to the Bothidae family and its biology is unknown in the Mediterranean Sea including Aegean Sea, Black Sea and Sea of Marmara. To describe first information on the seasonal von Bertalanffy growth function parameters (SVBGF) using length frequency data for A. kessleri, and also to present first information on indirect methods to estimate natural (M) and total mortality rates (Z), a total of 12 months samplings were conducted between December 2012 and November 2013 in the south-east Black Sea. The overall sex ratio of females: males skewed towards males (χ2, P 〈 0.01). The SVBGF parameters, computed from monthly length frequency distribution analysis (LFDA), were estimated as L∞ = 8.25 cm total length (TL), K = 0. 549 year-1 for females and as L∞ = 8.44 cm TL, K = 0.490 year-1 for males. The seasonal oscillation in growth rate for females (C = 0.340) was larger than it was for males (C = 0.260). The slowest period of growth corresponded to December both females and males. The seasonal growth of the scaldback was most probably initiated by photoperiod and accelerated with decreasing water temperatures. Total instantaneous mortality rate, Z, was estimated as 0.853 yr-1 for females and 0.774 yr-1 for males. Instantaneous natural mortality ratio, M, was estimated a bit higher for females (M = 0.714±0.129) than for males (M = 0.655±0.098). The exploitation rate, E, of both sexes was also lower than the optimum exploitation (E = 0.5) criterion, which is indicative of non-exploited and/or lightly exploited of A. kessleri population. The results of this study were offered as biological input parameters for management of Black Sea stocks of the scaldback species.
    Description: Published
    Description: Refereed
    Keywords: Scaldback ; Arnoglossus kessleri ; seasonal growth ; mortality ; fisheries management ; ASFA_2015::M::Marine Biology ; ASFA_2015::M::Mortality ; ASFA_2015::F::Fisheries management ; ASFA_2015::S::Sexual maturity ; ASFA_2015::G::Growth rate ; ASFA_2015::S::Seasonal variations ; ASFA_2015::B::Beam trawlers ; ASFA_2015::L::Length frequency ; ASFA_2015::P::Population density
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: 113-128
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  • 81
    Publication Date: 2024-01-11
    Description: The present study aimed to determine the concentration of metals in the soft tissue of wild mussels in coastal of Samsun and to assess human consumption. Using inductively coupled plasma mass spectrometry, the quantities of cadmium, mercury, lead, copper, iron, and zinc in Mytilus galloprovincialis were measured. The heavy metals found in Mediterranean mussels are arranged in the following ascending order: Cd 〈 Hg 〈 Pb 〈 Cu 〈 Fe 〈 Zn. Concentrations of toxic metals were safe according to European Commission guidelines and the Ministry of Agriculture, Forestry and Fisheries. According to the estimated daily intake (EDI), eating Mediterranean mussels poses no risks. The target hazard quotients (THQs) in metals are also found 〈1, which implies no threat to consumers. In conclusion, the current study confirmed that the concentration of heavy metals in the Mediterranean mussels is safe for people intake in terms of their toxicity.
    Description: Published
    Description: Refereed
    Keywords: estimated daily intake ; target hazard quotients ; risk index ; ASFA_2015::H::Heavy metals ; ASFA_2015::E::Estimation ; ASFA_2015::R::Risks ; ASFA_2015::M::Marine Biology ; ASFA_2015::M::Mussel fisheries ; ASFA_2015::T::Toxicity
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: 129-144
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  • 82
    Publication Date: 2024-01-11
    Description: This paper presents the results of the investigation of the dynamics of the main hydrochemical characteristics of the Azov Sea in the autumn seasons of 2021–2022. Over this time range, a change in the oxygen regime of the Azov Sea has been recorded. The concentrations of ammonium, nitrate, and total nitrogen, as well as total phosphorus have a considerable impact on the level of primary production of organic matter by phytoplankton. At the present period of a low river flow, the concentration of biogenic elements is decreasing, which leads to a decrease in the primary production of organic matter.
    Description: В работе представлены результаты исследования динамики основных гидрохимических характеристик Азовского моря в осенний период 2021–2022 гг. Отмечено изменение кислородного режима Азовского моря в исследуемый период. Концентрации аммонийного, нитратного, а также общего азота и фосфора в Азовском море оказывают существенное влияние на уровень первичного продуцирования органического вещества фитопланктоном. В современный период низкого уровня речного стока концентрация биогенных веществ уменьшается, что приводит к снижению первичного продуцирования органического вещества.
    Description: Published
    Description: Non Refereed
    Keywords: Biogenic elements ; Oxygen regime ; Habitat ; Water dynamics ; Биогенные элементы ; Кислородный режим ; Среда обитания ; Динамика вод ; Концентрации аммонийного азота ; Гидрохимическое состояние ; Дефицит кислорода ; Пространственное распределение ; ASFA_2015::C::Chemical oceanography
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: pp.170-177
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  • 83
    Publication Date: 2024-01-11
    Description: The nonlinear tide-surge interaction (NTSI) can significantly affect the levels associated with storm surges that threaten coastal areas. In this work, water level observations and numerical simulations are used to investigate those interactions in the large, mighty and socio-economically important Río de la Plata (RdP) estuary. We introduce a novel objective approach to seek evidence of nonlinear interactions in hourly water level records from six tide gauges collected along the coast. Results indicate that NTSI occurs in the RdP and suggest that it becomes more important upstream and along the southern coast of the estuary. CROCO ocean numerical model is used to quantify the interactions, to determine the areas where they are stronger, and to identify their sources. The amplitude of the interaction accounts for 16% of the total water level at the upper RdP, being comparable to tidal amplitude. The quadratic bottom friction is the principal cause of NTSI, and is modulated by the tidal current; therefore the nonlinearity is present all the time and is independent of the wind speed and direction. This is a particularity of this estuary and occurs because, as a consequence of its large width, surge currents are weak in spite of the big volume of water mobilized by the storms. Due to its nature, the interaction attenuates and smoothes the level anomalies due to the surge. Results highlight the need of utilizing a complete NTSI model for the forecast of the surge in the RdP; otherwise, the estuarine dynamic would be misrepresented generating significant forecasts errors (10%–20% at the upper RdP).
    Description: Challenge 9: Skills, knowledge and technology for all.
    Description: Published
    Description: Refereed
    Keywords: Storm surges
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: 12pp.
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  • 84
    Publication Date: 2024-01-11
    Description: The contamination with trace metals brought on by anthropogenic activity is one of the main issues impacting the health of the environment. The inherent pressures on marine ecosystems and the individuals who depend on marine ecosystems for nourishment, industry, and advantage are both being seriously threatened by trace metal pollution in coastal and marine habitats. This study aimed to find out the accumulation of metals (Cd, Co, Cr, Cu, Fe, Hg, Mn, Ni, Pb and Zn) in seasonal water samples taken for a year from the Ceyhan River's discharge point into the Northeast Mediterranean. Inductively Coupled Plasma Mass Spectrometry (ICP-MS) measurements of water were performed using an appropriate trace metal-based approach. The relative mean metal concentrations in the water column were in the following order at the sample site: Zn 〉 Fe 〉 Ni 〉 Cr 〉 Cu 〉 Pb〉 Mn 〉 Cd 〉 Co 〉 Hg. The highest value of Zn in the water column was observed at 90.05810.605 g L-1. The levels of contaminants in the water when compared to international and national water quality standards have been judged to be within the safe drinking range.
    Description: Published
    Description: Refereed
    Keywords: metal ; pollution ; Iskenderun Bay ; northeast Mediterranean Sea ; ASFA_2015::T::Trace metals ; ASFA_2015::C::Contamination ; ASFA_2015::P::Pollution ; ASFA_2015::A::Anthropogenic factors ; ASFA_2015::E::Environmental impact ; ASFA_2015::W::Water quality ; ASFA_2015::M::Marine pollution
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: 145-150
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  • 85
    Publication Date: 2024-01-11
    Description: Foraminifera is an important group of organisms which is widely used as indicators of environmental change. Not much work on foraminifera has been done on the Arabian margin running along the Pakistan coast. Information on the diversity and distribution of foraminifera is very limited and no information is available from the Balochistan coast. This study is an attempt to explore the diversity and dynamics related to foraminifera at the coast of Baluchistan. This very part of the study is designed to collect information about the zonation, vertical distribution and abundance of the genus Asterigerina at the beach of Ormara, Balochistan. The fossilized form of Asterigerina was previously reported from the sediments of upper Quetta region. This is the first report on the occurrence of alive Asterigerina in the coastal areas of Pakistan.
    Description: Published
    Description: Refereed
    Keywords: Foraminifera ; Rotaliida ; vertical distribution ; coastal sediments ; Pakistan ; ASFA_2015::M::Marine Biology ; ASFA_2015::T::Taxonomy ; ASFA_2015::V::Vertical distribution ; ASFA_2015::F::Foraminifera ; ASFA_2015::I::Indicator species ; ASFA_2015::S::Species diversity ; ASFA_2015::P::Population dynamics ; ASFA_2015::A::Abundance ; ASFA_2015::S::Sediments
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: 151-158
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  • 86
    Publication Date: 2024-01-11
    Description: Im Jahr 1529 erließ Herzog Georg von Sachsen eine neue Bergordnung für die Bergwerke in Freiberg. Im Gegensatz zum Erzgebirge, wo die 1509 erlassene Annaberger Bergordnung allgemeine Gültigkeit erlangt hatte, beharrte der Rat zu Freiberg auf ein in Teilen eigenständiges Bergrecht für die Stadt. Die Freiberger Bergordnung wurde vom Rat zu Freiberg gemeinsam mit den Gewerken im Beisein von Herzog Georg erstellt. In den 38 Artikeln wurde im Wesentlichen der Inhalt der Annaberger Bergordnung wiederholt. Neu für Freiberg war die Abrechnung und Austeilung sowie Veranschlagung der Zubuße in einem festgesetzten Zeitraum. Im Gegensatz zur Abrechnung in vier Quartalen, wie es im Erzgebirge seit 1476 Vorschrift war, erfolgte diese in Freiberg zu drei Terminen im Jahr. Weiterhin wurde darauf verwiesen, dass die Freiberger Bergbeamten die Eide analog der Annaberger Bergordnung leisten sollten.
    Description: source
    Keywords: Herzog Georg von Sachsen ; Freiberg ; Annaberg ; Silberbergbau ; Sachsen ; Bergordnung
    Language: German
    Type: doc-type:book , updatedVersion
    Format: 11
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  • 87
    Publication Date: 2024-01-11
    Description: Istituto Nazionale di Geofisica e Vulcanologia
    Description: Published
    Description: OSA1: Variazioni del campo magnetico terrestre, imaging crostale e sicurezza del territorio
    Keywords: 04.05. Geomagnetism
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: report
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  • 88
    Publication Date: 2024-01-11
    Description: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Description: Published
    Description: OSA1: Variazioni del campo magnetico terrestre, imaging crostale e sicurezza del territorio
    Keywords: 04.05. Geomagnetism
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: report
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  • 89
    Publication Date: 2024-01-11
    Description: Published
    Description: OSA1: Variazioni del campo magnetico terrestre, imaging crostale e sicurezza del territorio
    Keywords: 04.05. Geomagnetism
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: book
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  • 90
    Publication Date: 2024-01-11
    Description: Istituto Nazionale di Geofisica e Vulcanologia
    Description: Published
    Description: OSA1: Variazioni del campo magnetico terrestre, imaging crostale e sicurezza del territorio
    Keywords: 04.05. Geomagnetism
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 91
    Publication Date: 2024-01-11
    Description: Istituto Nazionale di Geofisica e Vulcanologia
    Description: Published
    Description: OSA1: Variazioni del campo magnetico terrestre, imaging crostale e sicurezza del territorio
    Keywords: 04.05. Geomagnetism
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 92
    Publication Date: 2024-01-11
    Description: Istituto Nazionale di Geofisica e Vulcanologia
    Description: Published
    Description: OSA1: Variazioni del campo magnetico terrestre, imaging crostale e sicurezza del territorio
    Keywords: 04.05. Geomagnetism
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 93
    Publication Date: 2024-01-11
    Description: Istituto Nazionale di Geofisica e Vulcanologia
    Description: Published
    Description: OSA1: Variazioni del campo magnetico terrestre, imaging crostale e sicurezza del territorio
    Keywords: 04.05. Geomagnetism
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 94
    Publication Date: 2024-01-11
    Description: ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA
    Description: Published
    Description: OSA1: Variazioni del campo magnetico terrestre, imaging crostale e sicurezza del territorio
    Keywords: 04.05. Geomagnetism
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 95
    Publication Date: 2024-01-11
    Description: Istituto Nazionale di Geofisica e Vulcanologia
    Description: Published
    Description: OSA1: Variazioni del campo magnetico terrestre, imaging crostale e sicurezza del territorio
    Keywords: 04.05. Geomagnetism
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 96
    Publication Date: 2024-01-11
    Description: Istituto Nazionale di Geofisica e Vulcanologia
    Description: Published
    Description: OSA1: Variazioni del campo magnetico terrestre, imaging crostale e sicurezza del territorio
    Keywords: 04.05. Geomagnetism
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 97
    Publication Date: 2024-01-11
    Description: We study the marine terraces of the southern side of the Sibari Plain in Northern Calabria (Italy) through the use of traditional and quantitative analyses of the Digital Terrain Model (DTM). The main aim of the present work consists in the extensive use of GIS tools that were never used before in the area, and in checking the applicability of this procedure. The terraced surfaces identified using photo interpretation and those recognized semi-automatically through the GIS tools were compared to finally produce a consensus map. In the final map, we identified 272 terraced surfaces and 62 morphological features associated with inner margins (i.e. paleoshorelines). The main map shows a well-developed flight of seven orders of marine terraces with elevation ranging from 45 to 360 m asl and age ranging from Marine Isotope Stage (MIS) 5a to 11.
    Description: Published
    Description: 2243983
    Description: OST3 Vicino alla faglia
    Description: JCR Journal
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 98
    Publication Date: 2024-01-11
    Description: An automatic geomagnetic station for monitoring the Earth’s magnetic field variations was installed in December 2020 at Talos Dome, a remote site on the Antarctic Plateau, about 300 km away from the permanent geomagnetic observatory at Mario Zucchelli Station (MZS). Designed and assembled at the laboratory of electronics of the Istituto Nazionale di Geofisica e Vulcanologia (INGV) in Rome, this autonomous station is formed by a vector magnetometer specifically manufactured by Lviv Institute (Ukraine) for very low temperatures and a low-power system supplied by batteries charged by a wind generator and solar panel. Data, sampled at 1 Hz, are locally stored and can be downloaded once a year during the Antarctic summer expeditions. The goal was to integrate observatory data for better monitoring the geomagnetic field from an uncovered Antarctic area. In fact, it is well known that the distribution of geomagnetic observatories strongly favors the northern hemisphere, and each new instrumental installation in Antarctica should be considered as a useful attempt to balance the geomagnetic monitoring in the two hemispheres. The achieved goal was to obtain a long data series, keeping the station working even during the austral winter when the temperature can reach −60 ◦C; we recorded almost 11 months of data in one year and the station is still operating. Data from the new station, jointly with data from permanent observatories, improve the analysis of the magnetospheric dynamics and the ionosphere–magnetosphere coupling. Talos Dome, together with the Italian geomagnetic observatory at Mario Zucchelli Station and New Zealand geomagnetic observatory at Scott Base, constitutes a network along the 80◦S geomagnetic parallel, which is interesting for studying the longitudinal propagation of geomagnetic signals of external origin. In this work we present the characteristics of the station and of the data it provides, with the aim of them for analysis in the framework of space weather.
    Description: Published
    Description: 339
    Description: OSA1: Variazioni del campo magnetico terrestre, imaging crostale e sicurezza del territorio
    Description: JCR Journal
    Keywords: 04.05. Geomagnetism
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  • 99
    Publication Date: 2024-01-11
    Description: Following the Mw 6.0 Amatrice earthquake on 24 August 2016 in central Italy, the Emersito task force of the Istituto Nazionale di Geofisica e Vulcanologia installed a temporary seismic network focusing on the investigation of amplification effects at municipalities located on topographic reliefs. Fourteen stations were installed at three sites: Amandola, Civitella del Tronto, and Montereale. During the operational period, stations recorded about 150 earthquakes with Mw up to 4.7. Recorded signals were analyzed calculating the horizon- tal-to-vertical spectral ratios at single station, using both ambient noise and earthquake waveforms, as well as standard spectral ratios (SSRs) to a reference site. To robustly estimate site amplification at each station of the site amplification effect at each station, the influence of backazimuth and epicentral distance is investigated. With the aim of reproducing the observed amplification pattern, 2D numerical simulations were performed on a section orthogonal to the topography major axis, constrained through in situ geological investiga- tions and geophysical surveys. Although at Montereale site no clear amplification effects were observed, at Amandola site, all stations on the relief consistently detected significant peaks at about 4 Hz and along N120–150 azimuth. At Civitella del Tronto, a proper reference station is missing, implying a misleading of site response evaluation in terms of SSRs. Moreover, even if all stations show amplification in the frequency band 1–3 Hz, the direction of the maximum amplification varies from northeast to northwest. At the three sites, obser- vations were successfully reproduced by 2D numerical models, the latter suggesting that topography alone cannot reproduce data, and the interplay with subsoil velocity structure is needed to produce a clear amplification effect. We conclude that according to the previous articles, rather than the sole topography convex shape, the geophysical structure has often a predominant role in controlling the observed amplification pattern on topography.
    Description: Published
    Description: 1208–1229
    Description: OST4 Descrizione in tempo reale del terremoto, del maremoto, loro predicibilità e impatto
    Description: JCR Journal
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 100
    Publication Date: 2024-01-11
    Description: One of the key components of this research has been the mapping of Antarctic bed topography and ice thickness parameters that are crucial for modelling ice flow and hence for predicting future ice loss and the ensuing sea level rise. Supported by the Scientific Committee on Antarctic Research (SCAR), the Bedmap3 Action Group aims not only to produce new gridded maps of ice thickness and bed topography for the international scientific community, but also to standardize and make available all the geophysical survey data points used in producing the Bedmap gridded products. Here, we document the survey data used in the latest iteration, Bedmap3, incorporating and adding to all of the datasets previously used for Bedmap1 and Bedmap2, including ice bed, surface and thickness point data from all Antarctic geophysical campaigns since the 1950s. More specifically, we describe the processes used to standardize and make these and future surveys and gridded datasets accessible under the Findable, Accessible, Interoperable, and Reusable (FAIR) data principles. With the goals of making the gridding process reproducible and allowing scientists to re-use the data freely for their own analysis, we introduce the new SCAR Bedmap Data Portal (https://bedmap.scar.org, last access: 1 March 2023) created to provide unprecedented open access to these important datasets through a web-map interface. We believe that this data release will be a valuable asset to Antarctic research and will greatly extend the life cycle of the data held within it. Data are available from the UK Polar Data Centre: https://data.bas.ac.uk (last access: 5 May 2023​​​​​​​). See the Data availability section for the complete list of datasets.
    Description: Published
    Description: 2695–2710
    Description: OSA2: Evoluzione climatica: effetti e loro mitigazione
    Description: JCR Journal
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