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  • Fisheries  (28)
  • ddc:600  (20)
  • ddc:553.21  (13)
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  • 2020-2023  (61)
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  • 2021  (61)
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  • 1
    Publication Date: 2022-03-24
    Description: The number of input-output assessments focused on energy has grown considerably in the last years. Many of these assessments combine data from multi-regional input-output (MRIO) databases with energy extensions that completely or partially depict the different stages through which energy products are supplied or used in the economy. The improper use of some energy extensions can lead to double accounting of some energy flows, but the frequency with which this happens and the potential impact on the results are unknown. Based on a literature review, we estimate that around a quarter of the MRIO-based energy assessments reviewed incurred into double accounting. Using the EXIOBASE MRIO database, we also analyse the effects of double accounting in the absolute values and rankings of different countries' and products' energy footprints. Building on the insights provided by our analysis, we offer a set of key recommendations to MRIO users to avoid the double accounting problem in the future. Likewise, we conclude that the harmonisation of the energy data across MRIO databases led by experts could simplify the choices of the data users until the provision of official energy extensions by statistical offices becomes a widespread practice.
    Keywords: ddc:600
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
    Type: article , doc-type:article
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  • 2
    Publication Date: 2022-04-12
    Description: Deutschlands Klimaschutzstrategie baut auf den Einsatz von grünem Wasserstoff aus erneuerbaren Energien. Doch wo soll der Wasserstoff herkommen, aus heimischer Produktion oder importiert aus dem Ausland? Eine Studie des Wuppertal Instituts und DIW Econ schafft einen Überblick über die aktuelle Datenlage und ermittelt Wertschöpfungs- und Beschäftigungseffekte beider Strategien. Das Resümee: Es trifft nicht zu, dass importierter Wasserstoff allgemein günstiger ist, entscheidend sind je nach Herkunftsland die tatsächlich realisierbaren Strom- und Transportkosten. Wird der grüne Wasserstoff stattdessen im eigenen Land produziert, wird dies zudem eine positive Beschäftigungswirkung und Wertschöpfung entfalten. Mit der Erreichung der Klimaziele 2050 betrüge die zusätzliche Wertschöpfung bei einer stark auf die heimische Erzeugung ausgerichtete Strategie bis zu 30 Milliarden Euro im Jahr 2050 und es könnten bis zu 800.000 Arbeitsplätze geschaffen werden.
    Keywords: ddc:600
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: German
    Type: report , doc-type:report
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  • 3
    Publication Date: 2022-03-09
    Description: By use of macro-economic model EXIOMOD, the expected impacts of actions described in the Strategic Research and Innovation Agenda (SRIA) have been analyzed. The results of this analysis show that the R&I actions described in the SRIA contribute to decoupling economic growth from resource use. The actions are expected to cause an increasing gross domestic product and a decreasing raw material demand. This results in an increasing extracted resource productivity, a measure used to show the decoupling of economic growth and resource use. It can however be questioned whether the actions in the SRIA - or the measures implemented in the model - assume a strong enough pace for decoupling economic growth and material use. The actions contribute to the climate goals of the European Commission, by showing a pathway through which the emissions of greenhouse gas can be reduced.
    Keywords: ddc:600
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: English
    Type: report , doc-type:report
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  • 4
    Publication Date: 2022-02-18
    Description: Die nationale Wasserstoffstrategie der Bundesregierung beinhaltet zentrale Zielkonflikte: Stärkung der deutschen Wirtschaft versus hohe Importquote, günstigere Produktionskosten im Ausland versus höhere Wertschöpfung durch Produktion im Inland. Vor diesem Hintergrund wird in diesem Beitrag diskutiert, wie groß die Kostenunterschiede ausfallen, welche Bedeutung die Transportkosten haben und welche Reboundeffekte bei Importen aus Nordafrika zu beachten sind.
    Keywords: ddc:600
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: German
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  • 5
    Publication Date: 2022-03-16
    Description: Hier finden sie das Impressum, Inhaltsverszeichnis, Vorwort des Vorsitzenden, Vorwort der Schriftleitung, sowie die Totenseite (Georg Ramm) der TELMA, Band 51 (2021).
    Description: DFG, SUB Göttingen, DGMT
    Description: editorial
    Keywords: ddc:553.21
    Language: German
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  • 6
    Publication Date: 2022-03-17
    Description: Drained peatlands are hotspots for carbon dioxide (CO2) and nitrous oxide (N2O) emissions. In Niedersachsen, 69 % of the peatland area is used for agriculture and is responsible for 11 % of the annual CO2 and N2O emissions. Raising peatland water tables to 0.30 m below surface could reduce emissions. In this study, three water regulation methods were tested to raise water table and to maintain grassland use on bog peatlands. In the first method, weirs were installed to block ditches and retain surface runoff within the blocking ditches. For the second method, ditch impoundment, additional water was pumped into the ditches creating constant ditch water levels. The third method, subsurface irrigation, further increased the water table within the grassland by allowing water to flow from the ditch into the bog area via subsurface pipes. Ditch impoundment and subsurface irrigation methods effectively raised the bog water tables. In the summer 2020, the mean water tables for ditch impoundment and subsurface irrigation reached 0.32 m and 0.23 m below surface, while the water table with blocking ditches was much lower with 0.61 m below surface. Overall, the subsurface irrigation method successfully raised the bog water tables and reduced subsidence. Negative aspects of this method are the costs for pipes and weirs, the reduced trafficability and the increased water demand.
    Description: Entwässerte Moore sind Hotspots für die Emission von Kohlendioxid (CO2) und Lachgas (N2O). In Niedersachsen werden 69 % der Moorflächen landwirtschaftlich genutzt und sind für 11 % der jährlichen CO2- und N2O-Emissionen verantwortlich. Eine Anhebung des Moorwasserstandes auf 0.30 m unter Geländeoberkante (GOK) könnte die Emissionen verringern. In dieser Studie wurden drei Methoden zur Wasserregulierung getestet, um Moorwasserstände anzuheben und die Grünlandnutzung in einem Hochmoor aufrechtzuerhalten. Für den Grabenanstau wurden Wehre installiert, um Gräben zu blockieren und den Oberflächenabfluss zurückzuhalten. Beim Grabeneinstau wird ein konstanter Wasserspiegel in den Gräben durch zugepumptes Wasser generiert. Bei der Unterflurbewässerung wird der Moorwasserstand weiter erhöht, in dem Wasser aus dem Graben über unterirdische Rohre in die Fläche geleitet wird. Mit dem Grabeneinstau und der Unterflurbewässerung konnten die Moorwasserstände erhöht werden. Im Sommer 2020 erreichten die mittleren Moorwasserstände beim Grabeneinstau und der Unterflurbewässerung 0.32 m und 0.23 m unter GOK, während der Moorwasserstand beim Grabenanstau mit 0.61 m unter GOK deutlich niedriger lag. Insgesamt konnten mit der Unterflurbewässerung Moorwasserstände erfolgreich angehoben und die Höhensackung der Mooroberfläche verringert werden. Negative Aspekte dieser Methode sind die Kosten für Rohre und Wehre sowie die Pumpe, die eingeschränkte Befahrbarkeit und ein erhöhter Wasserbedarf.
    Description: DFG, SUB Göttingen
    Description: research
    Keywords: ddc:553.21
    Language: English
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  • 7
    Publication Date: 2022-03-17
    Description: Laudatio anlässlich Michael Succows achtzigstem Lebensjahr.
    Description: DFG, SUB Göttingen, DGMT
    Description: editorial
    Keywords: ddc:553.21
    Language: German
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  • 8
    Publication Date: 2022-03-17
    Description: In Deutschland sind 92 % der Moore entwässert. Diese Flächen verursachen jedes Jahr etwa 53 Millionen Tonnen CO2-Äquivalente, was 6,7 % der gesamten Treibhausgasemissionen in Deutschland entspricht. Der überwiegende Teil (83 %) dieser Emissionen aus Moorböden resultiert aus landwirtschaftlichen Flächen. Ziel der 2021 veröffentlichten Nationalen Moorschutzstrategie ist es, die jährlichen Treibhausgasemissionen aus Moorböden bis 2030 um mindestens 5 Millionen Tonnen CO2-Äquivalente zu reduzieren. Um die Treibhausgas-Reduktionsziele zu erreichen, müssten in Deutschland, je nach Maßnahmen und Moortyp, rund 150.000 ha Moorflächen bis 2030 vernässt werden. Angesichts der langwierigen Prozesse der Projektentwicklung, der Genehmigungsverfahren und der technischen Umsetzung müsste aber umgehend und umfassend mit der Realisation begonnen werden. Dieses Ziel ist aufgrund der Freiwilligkeit der Maßnahmen derzeit nicht ansatzweise realistisch und erfordert massive, vor allem finanzielle Maßnahmen.
    Description: In Germany, 92 % of all peatlands are drained. These areas are responsible for approximately 53 million metric tons of CO2 equivalents each year, or 6.7 % of the total greenhouse gas emissions in Germany. The majority (83 %) of these emissions from peatlands result from agricultural used peatlands. The goal of the National Peatland Protection Strategy, published in 2021, is to reduce annual greenhouse gas emissions from peatland soils by at least 5 million metric tons of CO2 equivalents by 2030. To achieve the greenhouse gas reduction targets, around 150,000 hectares of peatland would need to be rewetted in Germany by 2030, depending on the rewetting technique and peatland type. However, in view of the long processes of project development, approval procedures and technical implementation, realization would have to begin immediately and comprehensively. Due to the voluntary nature of rewetting measures, this goal is not remotely realistic at present and requires massive measures, especially adequate funding.
    Description: DFG, SUB Göttingen, DGMT
    Description: research
    Keywords: ddc:553.21
    Language: German
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  • 9
    Publication Date: 2022-03-17
    Description: In engen Poren ist der Fallenergie der Kapillarhub entgegengesetzt, was im Fallgesetz und im darcy-/hagen-poiseuilleschen Strömungsgesetz berücksichtigt werden muss.
    Description: DFG, SUB Göttingen, DGMT
    Description: research
    Keywords: ddc:553.21
    Language: German
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  • 10
    Publication Date: 2022-03-17
    Description: Der Torfeinsatz in den Erden und Substraten des Gartenbaus ist mit CO2-Emissionen verbunden und eine Reduzierung durch den Ersatz mit nachwachsenden Rohstoffen daher spätestens seit der Klimaübereinkunft Paris 2015 eine gesellschaftliche Herausforderung. Torfmoose (Sphagnum spp.) stellen dabei einen der wenigen Ersatzstoffe dar, die die hohen qualitativen Anforderungen an Kultursubstrate erfüllen können. Mit der Einrichtung des Sphagnum farming Projektes „Barver“, Landkreis Diepholz, soll von 2018 bis 2021 die Torfmooskultivierung auf Hochmoorgrünland in der Praxis getestet werden. Voraussetzung zur Anlagenplanung war eine detaillierte Grundlagenerhebung des inhomogenen Torfkörpers, auf deren Basis der Oberbodenabtrag der Betriebsfläche (1 ha) und die Einrichtung des Bewässerungssystems erfolgte. Die Kulturfläche wurde abschließend manuell mit Torfmoosfragmenten von unterschiedlichen Spenderflächen beimpft. Für die erforderliche Polderbewässerung musste ein Kompromiss aus gering überstauten Schwarztorfflächen und flurnah bewässertem Weisstorfbereich akzeptiert werden. Schnell und flächig einsetzendes Wachstum der Torfmoosfragmente signalisiert, dass regionales Sphagnum farming auf degradiertem, drainierten Hochmoorgrünland bei funktionierender Wasserversorgung möglich ist. Die jetzt folgende Projektphase dient der Ermittlung der optimalen Bestandsentwicklung. Daneben sind technische und rahmenpolitische Fragen bis zu einer wirtschaftlich tragfähigen landwirtschaftlichen Torfmooskultivierung zu klären.
    Description: The use of peat in growing media for horticulture is associated with CO2 emissions and a reduction through replacement with renewable raw materials has therefore been a social challenge since Paris Agreement 2015 at the latest. Peat mosses are one of the few substitutes that can meet the high quality requirements for growing media. With the establishment of the Sphagnum farming project “Barver”, Diepholz district (Niedersachsen, Germany), peat moss cultivation on raised bog grassland is to be tested in practice from 2018 to 2021. A fundamental prerequisite of planning of the one hectare study site was an in-depth basic evaluation of its inhomogeneous peat body, being the base of site preparation and irrigation system. Finally, the study site was inoculated manually with fragmented peat mosses of different origins. The necessary watering of the polder had to be a trade-off between flood irrigation of a black peat area and subirrigation of the adjacent white peat zone. Rapidly and widespread growth of peat mosses indicate, that the regional cultivation of Sphagnum on degraded and drained bog grassland with a working irrigation system is feasible. The now starting phase is aiming on an optimal developed Sphagnum stock. Aside, there are technical challenges and administrative obstacles to be overcome before cultivation of peat mosses will give economically viable agricultural crops.
    Description: DFG, SUB Göttingen, DGMT
    Description: research
    Keywords: ddc:553.21
    Language: German
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  • 11
    Publication Date: 2022-03-17
    Description: Laudatio anlässlich der Verleihung des Deutschen Umweltpreises der Deutschen Bundesstiftung Umwelt (DBU) an Hans Joosten.
    Description: DFG, SUB Göttingen, DGMT
    Description: editorial
    Keywords: ddc:553.21
    Language: German
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  • 12
    Publication Date: 2022-03-17
    Description: Die Untersuchungen zu Verbreitung und Standort der Blasenbinse (Scheuchzeria palustris) in Nordostdeutschland werden vorgestellt. In den Jahren 2000 bis 2005 sowie 2020 wurden 29 Moore (27 in Mecklenburg-Vorpommern, 2 in Brandenburg) mit nach 1950 gemeldeten Funden der Art untersucht. Einzugsgebiet, Moorfläche, Mooraufbau, hydrogenetischer Moortyp, Flora und Vegetation sowie Hydrologie der untersuchten Niedermoore werden präsentiert. Die Ursachen für den Rückgang der Vorkommen werden diskutiert. Die Untersuchungen haben ergeben, dass dem Wasserfaktor für die Erhaltung der Blasenbinsen-Vorkommen eine entscheidende Rolle zukommt. Wasserstandschwankungen müssen in Bezug zur Mooroberfläche mit 1 bis 2 dm sehr gering bleiben. Durch die Fähigkeit zur Oszillation der Mooroberfläche kann ein Überstau weitgehend vermieden werden. Voraussetzung hierfür ist ein mächtiger Moorkörper mit oberflächennah anstehenden wässrigen Torfmoos-Torfen.
    Description: In this paper studies on the distribution and habitat of Scheuchzeria palustris in Northeastern Germany are presented. Twenty-nine fens (27 in Mecklenburg-Vorpommern, 2 in Brandenburg) were surveyed between 2000 and 2005 and additionally in 2020. The surveyed sites were all sites where this species had been observed since 1950. The catchment area, fen area, stratigraphy, hydrogenetic mire types, flora and vegetation as well as the hydrology for each site are shown. The reasons for the decline in populations are discussed. This study shows that hydrology plays a decisive role in maintaining Scheuchzeria palustris populations. The water level should be stable in relation to the peat surface with fluctuations no larger than 1 to 2 dm. Due to the shrinking and swelling capacity of peat, flooding can be largely avoided. The prerequisite for this is a thick peat body with Sphagnum peat at the surface.
    Description: DFG, SUB Göttingen, DGMT
    Description: research
    Keywords: ddc:553.21
    Language: German
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  • 13
    Publication Date: 2022-03-17
    Description: In den Jahren 2017 bis 2019 wurde das Flächennaturdenkmal „Rahmannsmoor“ in Krakow am See bezüglich der Lepidopteren, Ephemeropteren und Trichopteren untersucht. Parallel dazu sind moorstratigraphische Untersuchungen vorgenommen worden. Das in einer kuppigen Endmoränenlandschaft liegende Kesselmoor hat eine Moormächtigkeit von mehr als 5 Metern und ist über einem sandigen Untergrund aufgewachsen. Es befindet sich auf Grund einer längeren Trockenperiode in einer Phase der Stagnation, wobei mächtige, gering zersetzte Torfmoos-Torfe die Voraussetzungen für ein erneutes Moorwachstum geben. Vegetationskundlich wird das Rahmannsmoor von Torfmoosen, Wollgräsern, Moosbeeren und Rosmarinheiden geprägt. Es konnten 100 Taxa an Nachtfaltern, 13 Köcherfliegenarten und eine Eintagsfliegenart nachgewiesen werden. Tyrphobionte/-phile Faunenelemente sind bei den untersuchten Gruppen eher selten, wobei die „Restbiozönose“ noch zahlreiche eurytopere Arten der Moore beinhaltet. Das Moor soll entkusselt werden, um die baumfreien Flächen zu erweitern und die Verdunstung zu senken.
    Description: From 2017 to 2019, the natural monument “Rahmannsmoor” in Krakow am See was surveyed for lepidopterans, ephemeropterans and trichopterans. At the same time the stratigraphy was investigated. The kettle-hole mire, located in a dome-shaped end moraine landscape, is more than five meters deep and has a sandy subsoil. Peat growth is stagnated during dry years. Thick, slightly decomposed peat is a good prerequisite for renewed bog growth. In terms of vegetation, the Rahmannsmoor is characterised by Sphagnum mosses, cotton grasses, bog bilberry and rosemary heath. One hundred taxa of moths, 13 species of Trichoptera and one species of Ephemeroptera were recorded. Tyrphobiont and tyrphophilous faunal elements are rather rare in the studied groups, whereas the “residual biocoenosis” still contains numerous eurytope species of the mires. The shrubs will be removed from the peatland in order to enlarge the open areas and to reduce evaporation.
    Description: DFG, SUB Göttingen, DGMT
    Description: research
    Keywords: ddc:553.21
    Language: German
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  • 14
    Publication Date: 2022-03-17
    Description: Axel Precker: MacFarlane, R. (2015): Karte der Wildnis. 303 S., 15 Abbildungen, Reihe Naturkunden No. 18, Hrsg. J. Schalansky, Verlag Matthes & Seitz, Berlin, ISBN 978-95757-101-4. Andreas Bauerochse: Oman, H. & Hofer, W. (Hrsg., 2021): Der Moor-Effekt – Gesund und schön mit der natürlichen Kraft des „schwarzen Goldes“ 120 S., zahlreiche Abb. Literaturverzeichnis; kartonierter Einband, Unteraichwald, Ampuls-Verlag. ISBN 978-3-9519818-2-6.
    Description: DFG, SUB Göttingen, DGMT
    Description: bibliography
    Keywords: ddc:553.21
    Language: German
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  • 15
    Publication Date: 2022-03-17
    Description: DFG, SUB Göttingen, DGMT
    Description: bibliography
    Keywords: ddc:553.21
    Language: German
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  • 16
    Publication Date: 2022-03-17
    Description: Die Lehrausbildung zum Forstwirt im Fachbereich „Naturschutz/Landschaftspflege“ war 2018 bis 2021 auf die Umsetzung der Moorrevitalisierung im Fauna-Flora-Habitat-Gebiet „Moorwaldgebiet Großdittmannsdorf“ gerichtet. Erreicht wurde eine lokale Verbesserung des Waldinnenklimas (Luftfeuchtigkeit, Kühlung), der Grundwasserneubildung und Stabilisierung des Bodenwasserhaushaltes mit vorteilhaften Wirkungen auf die biologische Vielfalt (Feuchtbiotope, Moorbiozönose).
    Description: From 2018 to 2021, the apprenticeship training for foresters in the field of “nature conservation/landscape management” was focused on the implementation of measures for peatland revitalisation in the Habitats Directive Site “Moorwaldgebiet Großdittmannsdorf ”. A local improvement of the internal forest climate (humidity, cooling), groundwater recharge and stabilisation of the soil water balance with beneficial effects on biodiversity (wetland biotopes, bog biocoenosis) was achieved.
    Description: DFG, SUB Göttingen, DGMT
    Description: report
    Keywords: ddc:553.21 ; ddc:333.72
    Language: German
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  • 17
    Publication Date: 2022-03-17
    Description: Entlang der Donau zwischen Ulm und Ingolstadt liegen verschiedene Flusstal-Niedermoore, die sich während und nach der letzten Eiszeit entwickelt haben. Nahezu alle Moorböden sind in den vergangenen 200 Jahren entwässert und immer intensiver genutzt worden, weshalb fortwährend erhebliche Mengen an Klimagasen entweichen. Am Beispiel von acht Niedermoorrenaturierungen werden aus 30-jähriger Erfahrung die unterschiedlichen Hemmnisse und Lösungsansätze dargestellt. Daraus gewonnene Erkenntnisse könnten auch für andere Regionen nützlich sein. Es wird aufgezeigt, wie klimawirksamer Moorschutz rascher und effektiver gelingen kann, und welche Voraussetzungen dafür geschaffen werden müssen. Dass man beim Klimaschutz auch durch Moorbodenschutz schneller zu Ergebnissen kommen muss, zeigt die 26. Weltklimakonferenz 2021 (COP26) in Glasgow.
    Description: Along the Danube between Ulm and Ingolstadt, various river valley fens developed after the last ice age. Almost all peatlands have been drained over the past 200 years and intensively used resulting in significant greenhouse gase emissions. Due to the example of eight peatland restoration projects, obstacles and solutions are presented from over 30 years of experience that could be useful for other regions. Conclusions are drawn as to how peatlands can be protected more quickly and effectively to lower greenhouse gas emissions. Additionally, the conditions that need to be created for peatland protection are identified. The 26th United Nations Climate Change Conference (COP26) in Glasgow demonstrated the need to achieve quick results in climate protection through peatland protection to avoiding further global warming.
    Description: DFG, SUB Göttingen, DGMT
    Description: research
    Keywords: ddc:553.21 ; ddc:333.72
    Language: German
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  • 18
    Publication Date: 2022-02-25
    Description: In dieser Studie werden detailliert dargestellt: die Verwendung von Kunststoffprodukten und Möglichkeiten des Rezyklateinsatzes im Baubereich, verwendete Kunststoffmengen, Rücknahmesysteme, Verwertungstechniken, aktueller Rezyklateneinsatz und Bauproduktverpackungen aus Kunststoff. Potentiale zur Steigerung des hochwertigen Rezyklateinsatzes wurden identifiziert und bestehende Hürden und Handlungsoptionen für Politik und Wirtschaft dargestellt. Aktueller Rezyklateinsatz sowie technische und mengenmäßige Potentiale sind stark abhängig vom Einsatzbereich der Kunststoffe. Die größten Hürden für einen Rezyklateinsatz sind dabei Produktlebensdauer, Rückbaufähigkeit und technische Anforderungen.
    Keywords: ddc:600
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: German
    Type: report , doc-type:report
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  • 19
    Publication Date: 2022-02-18
    Description: Die vorangegangenen Analysen im RESTORE2050 Projekt, die im Rahmen dieses Berichts weitergeführt werden, haben gezeigt, dass der Einsatz von Wasserstoffspeichern zur Residuallastglättung nur bedingt geeignet ist. Zwar bietet die Technologie ein hohes technisches Potenzial hinsichtlich der Speicherkapazitäten und der installierbaren elektrischen Leistungen. Jedoch führt ein systemdienlicher Einsatz, bei dem positive Residuallastspitzen u. a. durch Anheben geringer Residuallasten gesenkt werden, wie er in den Modellrechnungen des RESTORE2050 Projektes implementiert ist, zu einer Absenkung der Deckungsraten von erneuerbaren Energien (EE) im europäischen Stromsystem. Dies ist dadurch begründet, dass die Umwandlung und Speicherung von EE-Strom als Wasserstoff (H2) im Vergleich zu anderen Speichertechnologien hohe Wandlungsverluste sowohl bei der H2-Erzeugung als auch bei der Rückverstromung aufweisen. Daher wird im Rahmen dieses Aufstockungsprojektes (RESTORE2050_plus) untersucht, welchen Beitrag alternative Einsatzstrategien der H2-Speicher zur Minimierung der negativen Residuallast, also potenzielle erneuerbaren Stromüberschüssen, und gleichzeitig zur Erhöhung der EE- Versorgungsanteile leisten kann.
    Keywords: ddc:600
    Repository Name: Wuppertal Institut für Klima, Umwelt, Energie
    Language: German
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  • 20
    Publication Date: 2022-02-18
    Description: Mit dem European Green Deal hat Europa seine Klimaschutzziele nach oben korrigiert und einen weiteren, erforderlichen Schritt auf dem Weg zur Dekarbonisierung unternommen. Die neuen europäischen Zielvorgaben sind in Deutschland mit der Verabschiedung des Klimaschutzgesetzes seit Ende 2019 schon verbindlich festgeschrieben, wobei hier bereits spezifische CO2-Budgets für die Einzelsektoren definiert werden. Die Umsetzung dieser Ziele verlangt eine radikale Transformation des heutigen Energieversorgungssystems. Der Umbau des komplexen und heterogenen Wärmebereiches stellt dabei eine der größten Herausforderung dar: Wärme ist in Europa für über 50 % des Endenergieverbrauches verantwortlich, wird aber gegenwärtig nur zu 22 % aus erneuerbaren Quellen bereitgestellt. Aus geoklimatischen, kulturellen und politischen Gründen sind dabei die Anteile in den einzelnen europäischen Ländern sehr unterschiedlich. Unter den Spitzenreitern sind Schweden (66 %) und Dänemark (48 %). Unser Nachbarland Österreich erreicht immerhin 34 %. Im Vergleich dazu liegt Deutschland mit 15 % abgeschlagen auf einem hinteren Platz. Der verstärkte Einsatz erneuerbarer Energien ist neben der Steigerung der Energieeffizienz die tragende Säule der Wärmewende, wobei hier ein breiter Mix an Technologien gefragt ist. Die direkte Nutzung der Wärmetechnologien hat weiterhin Priorität, erfordert aber eine stark beschleunigte Erschließung der vorhandenen Potenziale sowie einen nachhaltigen Umgang mit wertvoller Biomasse. Die Sektorenkopplung bietet die notwendige Ergänzung für die geplante Transformation (BMWi, 2021). Solarenergie in Form von Solarwärme und Solarstrom wird somit in Kombination mit Umweltwärme eine zentrale Rolle im zukünftigen Wärme- und Kälteversorgungssystem spielen. Darauf fokussiert sich der Beitrag, wobei die spezifische Situation der Niedertemperatur-Solarthermie und der Schlüsseltechnologie Wärmepumpe adressiert werden.
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  • 21
    Publication Date: 2022-02-18
    Description: Das übergeordnete Ziel des Forschungs-Projektes RESTORE 2050 (Regenerative Stromversorgung & Speicherbedarf in 2050; Förderkennzeichen 03SF0439) war es, wissenschaftlich belastbare Handlungsempfehlungen für die Transformation des deutschen Stromsystems im europäischen Kontext zu geben. Dafür wurden auf Basis der zukünftig prognostizierten Entwicklung von Stromangebot und -nachfrage innerhalb des ENTSO-E Netzverbundes für den Zeithorizont des Jahres 2050 sowie mittels örtlich und zeitlich hoch aufgelöster meteorologischer Zeitreihen die Themenkomplexe (1) Nationale Ausbaustrategien für erneuerbare Energien, (2) Übertragungsnetzausbau und (3) Alternativmaßnahmen wie Lastmanagement, (4) Bedeutung des EE-Stromaustauschs mit Drittstaaten und (5) die Rolle von Stromspeichern auf Übertragungsnetzebene analysiert. Die aus den Untersuchungsergebnissen abgeleitenden Handlungsempfehlungen stellen wichtige Beiträge für die weitere Integration von erneuerbaren Energien dar und geben Hinweise für den Aufbau einer leistungsfähigen europäischen Infrastruktur.
    Keywords: ddc:600
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  • 22
    Publication Date: 2022-02-18
    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 transition in MENA countries has been developed and applied to the country case of Algeria. It is designed to support the strategy development and governance of the energy transition and to serve as a guide for decision makers. The analysis shows that Algeria has already taken first steps towards a renewable energy transition. According to the MENA phase model, Algeria can be classified as entering the "Take-Off Renewables" phase. Nevertheless, fossil fuels still play a dominant role in the Algerian energy sector and in the economy as a whole. To support the renewables take-off, strong support is therefore needed at all levels. Only then can the necessary framework conditions be created to encourage participation and to attract investment from the private sector. To this end, a long-term energy strategy should to be developed that takes into account the renewable energy potential to support an efficient transformation of the Algerian energy supply and enables a smooth transition.
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  • 23
    Publication Date: 2022-02-18
    Description: Nicht erst seit dem Klimaabkommen von Paris, welches im Kern eine Begrenzung der menschengemachten globalen Erwärmung auf deutlich unter 2 °C gegenüber vorindustriellen Werten vorsieht, ist offensichtlich, dass eine umfassende Transformation der meisten Wirtschaftssektoren erforderlich ist, um die gesteckten Ziele zu erreichen. Die Transformation erfolgt dabei zum einen durch Steigerung der Energieeffizienz und zum anderen durch eine Dekarbonisierung der bestehenden Prozesse, bei denen heute noch ein hoher Anteil fossiler Energien eingesetzt wird - dies kann gelingen durch eine weitreichende Sektorkopplung, Flexibilisierung und Elektrifizierung bei vollständiger Nutzung Erneuerbarer Energien. Letzteres stellt auch die Energieversorgung in Rheinland-Pfalz vor einen Paradigmenwechsel: Die schrittweise Transformation eines von konventionellen Energieträgern geprägten Versorgungsystems zu einem durch Erneuerbare Energien dominierten System. Als eines der ersten Bundesländer hat sich Rheinland-Pfalz bereits im Jahr 2014 ein eigenes Klimaschutzgesetz gegeben sowie erstmals im Jahr 2015 ein Landesklimaschutzkonzept (LKSK) erarbeitet, welches energiepolitische Leitplanken für den angestoßenen Transformationsprozess setzt. Die vorliegende Studie im Auftrag des Ministeriums für Umwelt, Energie, Ernährung und Forsten Rheinland-Pfalz beleuchtet die Auswirkungen eines weiteren Ausbaus der Erneuerbaren Energien in Rheinland-Pfalz und der damit verbundenen Flexibilisierung und Dekarbonisierung unterschiedlicher Anwendungsfelder, insbesondere in der Industrie aber auch im ÖPNV und zentraler Wärmeversorgung.
    Keywords: ddc:600
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  • 24
    Publication Date: 2022-02-18
    Description: Mit dem Ziel, das Kunststoffrecycling weiter zu steigern, wurden in diesem Vorhaben die Verfahren und Prozesse der werkstofflichen Verwertung von Kunststoffabfällen in den Blick genommen - von der Sortierung über die Aufbereitung bis hin zu einem erneuten Einsatz in der Produktion. Ausgehend von der Beschreibung des Standes der Technik wurden mögliche, innovative technische Optimierungspotenziale identifiziert und dargestellt, die zur Verbesserung der Rezyklatqualitäten und ihren Einsatzmöglichkeiten in Neuprodukten beitragen können. Für eine Bewertung der Umweltwirkungen der technischen Innovationen im Vergleich zum Stand wurden ökobilanzielle Berechnungen vorgenommen.
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  • 25
    Publication Date: 2022-02-18
    Description: The basic materials industries are a cornerstone of Europe's economic prosperity, increasing gross value added and providing around 2 million high-quality jobs. But they are also a major source of greenhouse gas emissions. Despite efficiency improvements, emissions from these industries were mostly constant for several years prior to the Covid-19 crisis and today account for 20 per cent of the EU's total greenhouse gas emissions. A central question is therefore: How can the basic material industries in the EU become climate-neutral by 2050 while maintaining a strong position in a highly competitive global market? And how can these industries help the EU reach the higher 2030 climate target - a reduction of greenhouse gas emissions of at least 55 per cent relative to 1990 levels? In the EU policy debate on the European Green Deal, many suppose that the basic materials industries can do little to achieve deep cuts in emissions by 2030. Beyond improvements to the efficiency of existing technologies, they assume that no further innovations will be feasible within that period. This study takes a different view. It shows that a more ambitious approach involving the early implementation of key low-carbon technologies and a Clean Industry Package is not just possible, but in fact necessary to safeguard global competitiveness.
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  • 26
    Publication Date: 2022-02-23
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  • 27
    Publication Date: 2022-02-23
    Description: Especially in the arid areas of the Middle East and North Africa (MENA), water availability plays an important role in the expansion planning of industrial-scale solar power plants. Although power plants may account for only a very small portion of local water demand, competition for water with other sectors is expected to increase when water resources are insufficient for meeting local needs. This can lead to conflicts between different users (such as communities, farmers, tourism, businesses and utilities). Despite the increasing attention on the water-energy nexus, comprehensive studies analysing the interdependencies and potential conflicts between energy and water at the local level are absent. To examine the linkages between water resources and energy technologies at the local level, this case study was selected because Morocco is one of the countries most affected by water scarcity and, at the same time, it is also one of the most promising countries in North Africa for the development of renewable energies and offers excellent conditions for solar and wind power plants. Nevertheless, the country's electricity system is still largely based on conventional energy sources, and the country is more than 95% dependent on energy imports. To strengthen the country's energy security and reduce the financial burden associated with energy imports, Morocco is pursuing an ambitious renewable energy expansion strategy: by 2020, around 42% of the national electricity demand should be met by renewable energies. In view of Morocco's ambitious plans, it is particularly important to identify the potential conflicts and synergies resulting from the expansion of renewable energies in relation to the water sector.
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  • 28
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    Publication Date: 2022-02-23
    Description: The energy sector today accounts for about 10% to 15% of global freshwater withdrawal. Most water in the energy sector is used for generating electricity, especially for cooling processes in thermal power plants. At the same time the demand for electricity is expected to increase significantly due to population growth and economic development in emerging and developing economies. Growing demand is also driven by electrification strategies pursued by industrialized countries to decarbonize their economies. With the global demand for electricity expected to increase significantly in the coming decades also the water demand in the power sector is expected to rise. However, due to the on-going global energy transition, the future structure of the power supply - and hence future water demand for power generation - is subject to high levels of uncertainty because the volume of water required for electricity generation varies significantly depending on both the generation technology and cooling system. In light of these challenges the objective of this analysis is to provide more systematic and robust answers in terms of the impacts of different decarbonization strategies in the electricity sector on water demand at global and regional level. The focus is on operational water use for electricity generation.
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  • 29
    Publication Date: 2022-02-23
    Description: This report was prepared by the Wuppertal Institute in cooperation with the German Economic Institute as part of the SCI4climate.NRW project. The report aims to shed light on the possible phenomenon that the availability and costs of "green" energy sources may become a relevant location factor for basic materials produced in a climate-neutral manner in the future. For this purpose, we introduce the term "Renewables Pull". We define Renewables Pull as the initially hypothetical phenomenon of a shift of industrial production from one region to another as a result of different marginal costs of renewable energies (or of secondary energy sources or feedstocks based on renewable energies). Shifts in industrial production in the sense of Renewables Pull can in principle be caused by differences in the stringency of climate policies in different countries, as in the case of Carbon Leakage. Unlike Carbon Leakage, however, Renewables Pull can also occur if similarly ambitious climate policies are implemented in different countries. This is because Renewables Pull is primarily determined by differences in the costs and availability of renewable energies. In addition, Renewables Pull can also be triggered by cost reductions of renewable energies and by changing preferences on the demand side towards climate-friendly products. Another important difference to Carbon Leakage is that the Renewables Pull effect does not necessarily counteract climate policy. Similar to Carbon Leakage, it is to be expected that Renewables Pull could become relevant primarily for very energy-intensive products in basic materials industries. In these sectors (e.g. in the steel or chemical industry), there is also the possibility that relocations of specific energy-intensive parts of the production process could trigger domino effects. As a result, large parts of the value chains previously existing in a country or region could also be subjected to an (indirect) Renewables Pull effect. For the federal state of NRW, in which the basic materials industry plays an important role, the possible emergence of Renewables Pull is associated with significant challenges as climate policy in Germany, the EU and also worldwide is expected to become more ambitious in the future. This report aims to enable and initiate a deeper analysis of the potential future developments and challenges associated with the Renewables Pull effect. Thus, in the final chapter of the report, several research questions are formulated that can be answered in the further course of the SCI4climate.NRW project as well as in other research projects.
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  • 30
    Publication Date: 2022-02-23
    Description: Mit dem Ziel, das Kunststoffrecycling weiter zu steigern, wurden in diesem Vorhaben die Verfahren und Prozesse der werkstofflichen Verwertung von Kunststoffabfällen in den Blick genommen - von der Sortierung über die Aufbereitung bis hin zu einem erneuten Einsatz in der Produktion. Ausgehend von der Beschreibung des Standes der Technik wurden mögliche, innovative technische Optimierungspotenziale identifiziert und dargestellt, die zur Verbesserung der Rezyklatqualitäten und ihren Einsatzmöglichkeiten in Neuprodukten beitragen können. Für eine Bewertung der Umweltwirkungen der technischen Innovationen im Vergleich zum Stand wurden ökobilanzielle Berechnungen vorgenommen.
    Keywords: ddc:600
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  • 31
    Publication Date: 2022-10-26
    Description: © The Author(s), 2021. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Kourantidou, M., Hoagland, P., Dale, A., & Bailey, M. Equitable allocations in northern fisheries: bridging the divide for Labrador Inuit. Frontiers in Marine Science, 8, (2021): 590213, https://doi.org/10.3389/fmars.2021.590213.
    Description: Canada has undertaken commitments to recognize the rights of Indigenous Peoples in fisheries through policies and agreements, including Integrated Fishery Management Plans, the Reconciliation Strategy, and Land Claim Agreements (LCAs). In addition to recognizing rights, these commitments were intended to respect geographic adjacency principles, to enhance the economic viability of Indigenous communities, and to be reflective of community dependence on marine resources. We examined the determinants of quota allocations in commercial fisheries involving Nunatsiavut, Northern Labrador, the first self-governing region for the Inuit peoples in Canada. It has been argued that current fishery allocations for Nunatsiavut Inuit have not satisfied federal commitments to recognize Indigenous rights. Indicators that measure equity in commercial allocations for the turbot or Greenland halibut (Reinhardtius hippoglossoides) and northern shrimp (Pandalus borealis) fisheries were identified and assessed. In these two cases, historical allocations continue to predominate for allocations based upon equity or other social or economic considerations. We illustrate equity-enhancing changes in the quota distribution under scenarios of different levels of inequality aversion, and we make qualitative assessments of the effects of these allocations to Nunatsiavut for socioeconomic welfare. This approach could benefit fisheries governance in Northern Labrador, where federal commitments to equity objectives continue to be endorsed but have not yet been integrated fully into quota allocations.
    Description: This research was undertaken with funding from the Canada First Research Excellence Fund through the Ocean Frontier Institute (MK and MB) and the Johnson Endowment of the Woods Hole Oceanographic Institution’s (WHOI) Marine Policy Center (PH).
    Keywords: Fisheries ; Allocations ; Equity ; Indigenous rights ; Access
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  • 32
    Publication Date: 2022-11-10
    Description: Im Zeitalter der Machine Economy ist der maschinelle Dialog allgegenwärtig - das bietet neue Chancen für Nachhaltigkeit, erhöht gleichzeitig aber durch die zugrundeliegenden Technologien auch den Druck auf unsere Umwelt. Internet of Things (IoT), Künstliche Intelligenz (KI) und Distributed Ledger Technology (DLT) sind das technologische Fundament der Machine Economy. Damit verbunden sind Infrastrukturen, Datenströme und Anwendungen, die hohe Energie- sowie Ressourcenaufwände erzeugen. Der derzeitige politische Diskurs sowie die Nachhaltigkeitsforschung fokussieren sich auf Umweltwirkungen durch digitale Infrastrukturen. Daten, Applikationen sowie die Rolle von Akteuren als Treiber der Umweltwirkung werden zu wenig beleuchtet. In diesem Papier sprechen sich die Autorinnen und Autoren für eine "Grüne Governance der Machine Economy" aus. Adressiert werden Annahmen zu systemübergreifenden Treibern von Umweltbelastungen und ihrer Wirkung. Ziel ist es, ein Gesamtsystem nachhaltiger Entscheidungen und ein ökologisches Zusammenspiel aller beteiligten Technologien in der Wertschöpfung zu ermöglichen. Zukünftige Forschung soll die hier vorgestellten Hypothesen weiter ausarbeiten und konkrete Handlungsoptionen für eine Stakeholder übergreifende Roadmap erarbeiten.
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  • 33
    Publication Date: 2022-11-10
    Description: Mit der Blockchain - und allgemein mit Distributed-Ledger-Technologien (DLT) - werden große Erwartungen verknüpft, die Prozesse der digitalen Welt des 21. Jahrhunderts neu zu organisieren, effizienter zu gestalten und bislang ungekannte Möglichkeiten für Transaktionen zwischen Beteiligten in Wirtschaft, Gesellschaft und Verwaltung zu ermöglichen. Diese Chancen müssen genutzt werden. Gleichzeitig ist mit der Blockchain-Technologie wie mit allen anderen digitalen Lösungen die Herausforderung verbunden, die Technologien, Anwendungen und zugrundeliegenden Infrastrukturen nachhaltig zu gestalten und an Energieeffizienz, Klimaschutz und Ressourcenschonung auszurichten. Handlungsbedarf besteht auch bei Blockchain-Anwendungen. Der Energieverbrauch des derzeit größten Blockchain-Netzwerks Bitcoin wird auf bis über 130 TWh/Jahr abgeschätzt, womit eine Größenordnung in Höhe des gesamten Jahresstrombedarfs von Ländern wie Argentinien erreicht würde. Blockchain-Anwendungen sind somit schon heute umweltpolitisch relevante Einflussgrößen und die zu erwartende Wachstumsdynamik erhöht den Handlungsdruck. Es ist das Ziel dieser Kurzstudie, geeignete Nachhaltigkeitskriterien zur Bewertung der Energieverbräuche und Umweltwirkungen von Blockchain-Anwendungen zu identifizieren sowie ein erstes Konzept für deren Implementierung bei der Umsetzung und Vergabe staatlich geförderter oder initiierter Projekte vorzuschlagen.
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  • 34
    Publication Date: 2022-06-15
    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 the Middle East and North Africa (MENA) countries has been developed and applied to the country case of Tunisia. It is designed to support the strategy development and governance of the energy transition and to serve as a guide for decision makers. The analysis shows that Tunisia has already taken important steps towards a RE transition. According to the MENA phase model, Tunisia can be classified as being in the "Take-Off Renewables" phase. Nevertheless, natural gas still plays the dominant role in Tunisia's highly subsidised electricity generation. In addition to the elevated political uncertainty, there are numerous structural, political, social, and economic challenges within the energy sector that hinder progress in the transition to REs. Strong support at all levels is needed to promote the breakthrough of RE. This includes more detailed long-term planning and improving the regulatory framework, as well as reducing offtaker risks to improve the bankability of RE projects in order to attract private investment. Furthermore, institutional buy-in needs to be increased and the engagement of key non-state stakeholders must be strengthened. In light of the growing domestic energy demand and with the on-going global decarbonisation efforts in favour of sustainable fuels, Tunisia would be well advised to embark on a sustainable energy path sooner rather than later to seize economic opportunities that can arise from RE development.
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  • 35
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    In:  aqdchief@seafdec.org.ph | http://aquaticcommons.org/id/eprint/18569 | 2002 | 2015-11-15 16:06:30 | 18569 | Southeast Asian Fisheries Development Center, Aquaculture Department
    Publication Date: 2022-08-02
    Description: This paper summarizes the results of the experiments on the induced breeding and larval rearing of milkfish (Chanos chanos) during the 1979 season. Milkfish larvae could be reared successfully without the use of trochophore larvae of oysters as feed during the first few days. In order to induce the ovulation of wild adult milkfish a higher dose of human chorionic gonadotropin hormone is required.
    Keywords: Fisheries ; Chanos chanos ; ISEW ; Philippines ; marine environment ; Brood stocks ; Fish culture ; Fish larvae ; Food organisms ; Induced breeding ; Larval development ; Sex hormones
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  • 36
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    In:  library@seafdec.org.ph | http://aquaticcommons.org/id/eprint/20100 | 17342 | 2016-02-24 22:18:26 | 20100 | Southeast Asian Fisheries Development Center, Aquaculture Department
    Publication Date: 2022-08-02
    Description: An outline is given of aquaculture and fisheries in Asia, providing information of use to students whose work can influence laws, rules, policy and regulations on aquaculture and fisheries, with the view in mind to sustainable aquaculture. In this issue, the following countries are examined: China, Indonesia, and Bangladesh.
    Keywords: Aquaculture ; Fisheries ; Fishery management ; Aquaculture development ; Aquaculture regulations ; Marine aquaculture ; Freshwater aquaculture ; Fishery industry ; Asia ; Bangladesh ; China
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    In:  library@seafdec.org.ph | http://aquaticcommons.org/id/eprint/20067 | 2002 | 2016-03-04 15:16:24 | 20067 | Southeast Asian Fisheries Development Center, Aquaculture Department
    Publication Date: 2022-08-02
    Keywords: Fisheries ; Aquaculture ; Vietnam ; Sri Lanka ; Sri Lanka ; Vietnam ; brackishwater environment ; freshwater environment ; marine environment ; Aquaculture ; Aquaculture techniques ; Brackishwater aquaculture ; Feed ; Fish culture ; Fish diseases ; Fisheries ; Fishery data ; Food organisms ; Freshwater aquaculture ; Marine aquaculture ; Marine fisheries ; Mollusc culture ; Pond culture ; Seaweed culture ; Shrimp culture
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  • 38
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    In:  library@seafdec.org.ph | http://aquaticcommons.org/id/eprint/20055 | 2002 | 2016-03-03 11:33:32 | 20055 | Southeast Asian Fisheries Development Center, Aquaculture Department
    Publication Date: 2022-08-02
    Keywords: Fisheries ; Aquaculture ; Asia ; Cambodia ; India ; Asia ; Cambodia ; India ; Myanmar ; Myanmar ; brackishwater environment ; freshwater environment ; marine environment ; Aquaculture ; Aquaculture development ; Aquaculture economics ; Aquaculture techniques ; Brackishwater aquaculture ; Catching methods ; Culture effects ; Environmental impact ; Fish culture ; Fisheries ; Fishery development ; Fishery resources ; Fishery statistics ; Freshwater aquaculture ; Marine aquaculture ; Shrimp culture ; Sustainability ; Trade
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  • 39
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    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26291 | 23782 | 2019-04-08 09:42:05 | 26291 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Publication Date: 2022-08-02
    Keywords: Fisheries ; Pollution ; Indonesia ; Heavy metals ; Chemical pollution ; Pollution monitoring
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  • 40
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    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26293 | 23782 | 2019-03-22 03:49:21 | 26293 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Publication Date: 2022-08-02
    Keywords: Fisheries ; Myanmar ; Heavy metals ; Cadmium ; Lead ; Mercury ; Biological sampling ; Fish ; Fishery products ; Seafood
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  • 41
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26259 | 2002 | 2019-03-01 05:56:06 | 26259 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2022-08-02
    Description: Round scad exploration by purse seine in the waters of western Philippines was conducted from April 22 to May 7, 1998 for a period of five (5) fishing days with a total catch of 7.3 tons and an average of 1.5 tons per setting. Dominant species caught were Decapterus spp. having 70.09% of the total catch, followed by Selar spp. at 12.66% and Rastrelliger spp. 10.70%. Among the Decapterus spp. caught, D. macrosoma attained the highest total catch composition by species having 68.81% followed by D. kurroides and D.russelli with 0.31% and 1.14% respectively. The round scad fishery stock was composed mainly of juvenile fish (less than 13 cm) and Age group II (13 cm to 14 cm). Few large round scad at Age group IV and V (20 cm to 28 cm) stayed at the fishery. Other fishes caught were: Auxis rochei (0.85%), A. thazard (0.12%), Caranx spp. (0.45%), Emmilichthys nitidus (0.58%), Euthynnus affinis (0.42%), Leiognathus ruconius (0.58%), Loligo sp. (0.31%), Megalaspis cordyla (0.09%), Rastrelliger spp. (10.70%), Sardinella longiceps (0.03%), Scomberoides lysan (0.24%), Selar spp. (12.66%), Sphyraena spp. (0.90%), Thunnus albacares (0.96%) and others (1.02%). Tuna and tuna like fishes such as yellowfin tuna, eastern little tuna, bullet tuna, frigate tuna and oceanic squid are distributed in the upper latitudes of the survey area. On the other hand, round scads, big-eyed scads and Indian mackerels are dominantly present in the lower latitudes of the survey area.
    Keywords: Fisheries ; Exploratory fishing ; Purse seining ; Age composition ; Catch composition ; Fishery surveys ; Carangid fisheries ; South China Sea ; Philippines ; Rastrelliger ; Decapterus
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 49-64
    Format: 16
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    Training Department, Southeast Asian Fisheries Development Center | Samut Prakarn, Thailand
    In:  http://aquaticcommons.org/id/eprint/26215 | 17342 | 2019-02-08 06:25:54 | 26215 | Southeast Asian Fisheries Development Center, Training Department
    Publication Date: 2022-08-02
    Description: Presented in this paper is the status of the fishery industry in Brunei Darussalam. Specifically, it discussed the following topics: fishery management strategies, zonation scheme, licencing, the use of poisons and explosives, the minimum cod-end mesh size for trawlers, closed areas, enhancement of fishing grounds, and the enforcement activities.
    Keywords: Fisheries ; Fishery resources ; Fishery management ; Fisheries ; Ecological zonation ; Licensing ; Fish poisoning ; Catching methods ; Illegal fishing ; Explosive fishing ; Fishing gear ; Season regulations ; Fishing grounds
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 34-40
    Format: 7
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    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26295 | 23782 | 2019-03-22 08:39:12 | 26295 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Publication Date: 2022-08-02
    Keywords: Fisheries ; Thailand ; Cadmium ; Lead ; Mercury ; Biological sampling ; Fish ; Fishery products ; Seafood
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 53-58
    Format: 6
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    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26292 | 23782 | 2019-03-22 03:43:09 | 26292 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Publication Date: 2022-08-02
    Keywords: Fisheries ; Malaysia ; Cadmium ; Lead ; Mercury ; Biological sampling ; Fish ; Fishery products ; Seafood
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 20-37
    Format: 18
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26258 | 2002 | 2019-03-01 06:00:19 | 26258 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2022-08-02
    Description: An exploratory tuna longline fishing survey was conducted using the research and training vessels of the Southeast Asian Fisheries Development Center, the 1,178 GT MV SEAFDEC and the Bureau of Fisheries and Aquatic Resources, the 165 GT MV MAYA-MAYA in the South China Sea Waters, West of the Philippines from April to May, 1998. A total of 3,796 hooks was set in sixteen (16) fishing stations. There were no tuna caught during the entire survey but only minor and irrelevant species like the Pacific lancetfish, sharks and an opah species, Lampris guttatus. The important fishing and oceanographic factors during the survey and other research results on longline are described and analyzed. Additional longline studies within and near the Philippines territorial waters are also presented to substantiate the research results of the joint SEAFDEC/BFAR resource exploratory.
    Keywords: Fisheries ; Exploratory fishing ; Catch composition ; Fishery surveys ; Longlining ; Tuna fisheries ; South China Sea ; Philippines
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 39-48
    Format: 10
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    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26299 | 23782 | 2019-03-27 06:00:01 | 26299 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Publication Date: 2022-08-02
    Keywords: Chemistry ; Fisheries ; Malaysia ; Pesticides ; Biological sampling ; Fish ; Fishery products ; Biochemical analysis ; Lethal limits
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 71-74
    Format: 4
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    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26300 | 23782 | 2019-03-27 05:58:36 | 26300 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Publication Date: 2022-08-02
    Keywords: Aquaculture ; Chemistry ; Fisheries ; Myanmar ; Pesticides ; Biological sampling ; Fish ; Fishery products ; Lethal limits
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 75-83
    Format: 9
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    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26307 | 23782 | 2019-03-27 03:35:56 | 26307 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Publication Date: 2022-08-02
    Keywords: Fisheries ; Indonesia ; Histamines ; Biological sampling ; Fish ; Fishery products ; Quality control
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 116-123
    Format: 8
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    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26303 | 23782 | 2019-03-27 05:51:15 | 26303 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Publication Date: 2022-08-02
    Keywords: Chemistry ; Fisheries ; Thailand ; Pesticides ; Biological sampling ; Fish ; Fishery products ; Dried products ; Lethal limits
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 100-105
    Format: 6
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    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26309 | 23782 | 2019-03-27 03:49:31 | 26309 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Publication Date: 2022-08-02
    Keywords: Fisheries ; Myanmar ; Histamines ; Biological sampling ; Biochemical analysis ; Fish ; Fishery products
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 129-133
    Format: 5
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    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26826 | 23782 | 2019-11-21 00:56:12 | 26826 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Publication Date: 2022-08-02
    Description: Presented in the paper is the standard procedure in the determination of K value which is an index to measure the enzymatic freshness of fish and squid. Specifically, reagents, apparatus and the analytical procedures needed and the calculations are presented.
    Keywords: Chemistry ; Fisheries ; Manuals ; Culture media ; Analysis ; Analytical techniques ; Methodology ; Chemical analysis ; Fishery products ; Fish inspection ; Fishery industry ; Food technology ; Standards ; Specifications
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: B-6.1-B-6.7
    Format: 7
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    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26825 | 23782 | 2019-11-21 00:52:35 | 26825 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Publication Date: 2022-08-02
    Description: Presented in the paper is the standard procedure in measuring K value in fish meat by means of the freshness testing paper technique.
    Keywords: Chemistry ; Fisheries ; Manuals ; Culture media ; Analysis ; Analytical techniques ; Methodology ; Chemical analysis ; Fishery products ; Fish inspection ; Fishery industry ; Food technology ; Standards ; Specifications
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: B-7.1-B-7.2
    Format: 2
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    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26802 | 23782 | 2019-11-12 05:28:20 | 26802 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Publication Date: 2022-08-02
    Description: Presented in the paper is the standard procedure in the measurement of pH in the fresh fish meat. Specifically, the procedures in sampling and sample preparation, apparatus and reagents required, and the analytical procedures are presented.
    Keywords: Chemistry ; Fisheries ; Manuals ; Culture media ; Analysis ; Analytical techniques ; Methodology ; Chemical analysis ; Microbiological analysis ; Fishery products ; Processed fishery products ; Fish inspection ; Fishery industry ; Food additives ; Food technology ; Standards ; Specifications ; pH
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: A-3.1-A-3.2
    Format: 2
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    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26842 | 23782 | 2019-11-15 07:54:48 | 26842 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Publication Date: 2022-08-02
    Description: Starch is commonly used in the production of fish jelly products as an extender and as binding agent. The paper provides the methodology in the determination of starch in fish jelly products. Instructions for sample preparation and the reagents needed are presented. Detailed procedures in the determination of the starch in a sample are provided.
    Keywords: Chemistry ; Fisheries ; Manuals ; Culture media ; Analysis ; Analytical techniques ; Methodology ; Chemical analysis ; Fishery products ; Fishery industry ; Food technology ; Standards ; Specifications ; Starch ; Additives ; Food additives
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: D-4.1-D-4.4
    Format: 4
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    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26881 | 23782 | 2019-11-05 02:46:02 | 26881 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Publication Date: 2022-08-02
    Description: Monitoring and investigative work undertaken in the Philippines regarding dinoflagellate blooms are described. Chronological observations of the occurrence of red tides, aerial surveys, spatial distribution of the dinoflagellate and the physical environment are discussed. Fishing and the examination of gut content of fish and mussels and bioassay tests are detailed. Incidents of paralytic shellfish poisoning in the Philippines are considered briefly.
    Keywords: Fisheries ; Health ; Environmental monitoring ; Red tides ; Public health ; Medicine ; Dangerous organisms ; Philippines
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 52-79
    Format: 28
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    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26885 | 23782 | 2019-11-05 02:23:34 | 26885 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Publication Date: 2022-08-02
    Description: A report is made of the first incidence occurring of paralytic shellfish poisoning in Thailand in May 1983, following an extensive bloom of Trichodesmium erythraeum. Investigations undertaken regarding the source of the toxicity are outlined.
    Keywords: Fisheries ; Health ; Biological poisons ; Public health ; Red tides ; Shellfish ; Dangerous organisms ; Thailand
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 90-91
    Format: 2
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    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26879 | 23782 | 2019-11-05 02:54:38 | 26879 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Publication Date: 2022-08-02
    Description: A brief account is given of recent cases of paralytic shellfish poisoning in Sabah, Malaysia, and toxicological studies undertaken. Hydrography surveys, underwater observations after the occurrence of the red tides and plankton studies and monitoring of red tides are discussed.
    Keywords: Fisheries ; Health ; Shellfish ; Toxicity tests ; Red tides ; Public health ; Dangerous organisms ; Malaysia
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 35-42
    Format: 8
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    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26852 | 23782 | 2019-11-15 07:36:44 | 26852 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Publication Date: 2022-08-02
    Description: Cholera is an acute specific infection caused by the organism, Vibrio cholera. Diagnosis may be confirmed by the presence of large numbers of the comma-shaped bacilli on direct microscopic examination of a fecal or vomitus smear, and by the isolation of the organism on culture. Fish and shellfish have been identified as vehicles of cholera. Large numbers of V. cholera must usually be ingested to cause cholera. Thus problems often occur when poor handling and inadequate refrigeration have allowed the organism to multiply. Presented in the paper is the methodology of determining the presence of Vibrio cholera in fish and fishery products.
    Keywords: Chemistry ; Fisheries ; Manuals ; Culture media ; Analysis ; Analytical techniques ; Methodology ; Fishery products ; Fishery industry ; Food technology ; Standards ; Specifications ; Aerobic bacteria ; Microbiological analysis ; Microorganisms ; Pathogenic bacteria ; Pathogens ; Health and safety ; Public health ; Microbial contamination ; Vibrio cholerae
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: E-7.1-E-7.5
    Format: 5
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    Secretariat, Southeast Asian Fisheries Development Center | Bangkok, Thailand
    In:  http://aquaticcommons.org/id/eprint/26890 | 23782 | 2019-11-14 01:01:29 | 26890 | Southeast Asian Fisheries Development Center, Secretariat
    Publication Date: 2022-08-02
    Description: Fishery statistics in Brunei Darussalam have been collected by the Department of Fisheries since the 1940s. In the early 1980s, a number of statistics were collected, such as catch and effort data of artisanal fishermen, aquaculture statistics, processing statistics as well as data from major wet markets focusing on the amount, prices of marketed fish either from the local fishermen or imported. In 1984, the collection of statistics on commercial fishing was started. The statistics have been used in the formulation of fishery management and development policies as well as for sectoral development. Following a brief account of the responsibility and statistic collections of the Department of Fisheries, an examination is made of employment in the fishery sector, fisheries production, fish marketed and the GDP for the fishery industry. Fisheries in Brunei Darussalam is a very healthy industry, where production is well below the maximum allowable harvestable limit of 20,000 tons at 30%. The Department is embarking to increase production from the capture fishery to reduce the country's dependence on imported fish; the same applies for aquaculture, in order to complement production from the capture fisheries. The processing sector is also increasing in importance, especially with the increase in the number of capture fishery licenses, and the demand for quality and value-added products.
    Keywords: Fisheries ; Marine fisheries ; Fishery statistics ; Aquaculture development ; Aquaculture statistics ; Fish catch statistics ; Marine aquaculture ; Freshwater aquaculture ; Fishery development ; Marine ; Brackish ; Freshwater
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 6-14
    Format: 9
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    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26843 | 23782 | 2019-11-15 07:52:55 | 26843 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Publication Date: 2022-08-02
    Description: Sodium chloride is an important additive for the production of fish jelly products. It extracts the salt soluble protein to give the gel strength of the final product. The paper provides the methodology in the determination of the amount of sodium chloride in fish jelly products. Instructions for sample preparation and the reagents needed are presented. Detailed procedures in the determination of the salt in a sample are provided.
    Keywords: Chemistry ; Fisheries ; Manuals ; Culture media ; Analysis ; Analytical techniques ; Methodology ; Chemical analysis ; Fishery products ; Fishery industry ; Food technology ; Standards ; Specifications ; Additives ; Food additives ; Salts ; Sodium chloride
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: D-5.1-D-5.2
    Format: 2
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    Marine Fisheries Research Department, Southeast Asian Fisheries Development Center | Singapore
    In:  http://aquaticcommons.org/id/eprint/26851 | 23782 | 2019-11-14 01:29:31 | 26851 | Southeast Asian Fisheries Development Center, Marine Fisheries Research Department
    Publication Date: 2022-08-02
    Description: Food poisoning due to Vibrio parahaemolyticus is a food-borne infection resulting from the ingestion of a large number of this organism (about 106-109 viable cells). The major symptoms are diarrhea and abdominal pain with headache, fever, and vomiting also occurring. The organisms are excreted during the acute stage of the illness after which they decrease rapidly. The differentiation of V. parahaemolyticus from other pathogenic species of Vibrio is based mainly on salt tolerance, Voges-Proskauer reaction, fermentation of sucrose, and growth at 43°C. Presented in the paper is the methodology of determining the presence of Vibrio cholera in fish and fishery products.
    Keywords: Chemistry ; Fisheries ; Manuals ; Culture media ; Analysis ; Analytical techniques ; Methodology ; Fishery products ; Fishery industry ; Food technology ; Standards ; Specifications ; Aerobic bacteria ; Microbiological analysis ; Microorganisms ; Pathogenic bacteria ; Pathogens ; Health and safety ; Public health ; Microbial contamination ; Vibrio parahaemolyticus ; Vibrio cholerae
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: E-8.1-E-8.6
    Format: 6
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