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  • Shrimp  (156)
  • 04. Solid Earth::04.08. Volcanology::04.08.99. General or miscellaneous
  • Genetic variation
  • Iranian Fisheries Science Research Institute  (165)
  • Nature Publishing Group  (4)
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  • 1
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    Dynamic feeder dyke systems in basaltic volcanoes: the exceptional example o fthe 1809 Etna eruption (Italy) (2015)
    Nature Publishing Group
    Details
    Publication Date: 2017-04-04
    Description: In this paper, we describe the 1809 eruption of Mt. Etna, Italy, which represents one historical rare case in which it is possible to observe details of the internal structure of the feeder system. This is possible thanks to the presence of two large pit craters located in the middle of the eruptive fracture field that allow studying a section of the shallow feeder system. Along the walls of one of these craters, we analysed well-exposed cross sections of the uppermost 15–20 m of the feeder system and related volcanic products. Here, we describe the structure, morphology and lithology of this portion of the 1809 feeder system, including the host rock which conditioned the propagation of the dyke, and compare the results with other recent eruptions. Finally, we propose the dynamic model of the magma behaviour inside a laterally-propagating feeder dyke, demonstrating how this dynamic triggered important changes in the eruptive style (from effusive/Strombolian to phreatomagmatic) during the same eruption. Our results are also useful for hazard assessment related to the development of flank eruptions, potentially the most hazardous type of eruption from basaltic volcanoes in densely urbanized areas, such as Mt. Etna.
    Description: Published
    Description: 1-11
    Description: 2T. Tettonica attiva
    Description: 2V. Dinamiche di unrest e scenari pre-eruttivi
    Description: 3V. Dinamiche e scenari eruttivi
    Description: 4V. Vulcani e ambiente
    Description: 6A. Monitoraggio ambientale, sicurezza e territorio
    Description: N/A or not JCR
    Description: open
    Keywords: feeder dyke ; basaltic volcanoes ; flank eruptions ; Etna ; volcanic hazards ; sill ; volcanic rift ; 04. Solid Earth::04.04. Geology::04.04.09. Structural geology ; 04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics ; 04. Solid Earth::04.08. Volcanology::04.08.99. General or miscellaneous ; 04. Solid Earth::04.08. Volcanology::04.08.03. Magmas ; 04. Solid Earth::04.08. Volcanology::04.08.04. Thermodynamics ; 04. Solid Earth::04.08. Volcanology::04.08.05. Volcanic rocks ; 04. Solid Earth::04.08. Volcanology::04.08.08. Volcanic risk ; 05. General::05.02. Data dissemination::05.02.03. Volcanic eruptions
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 2
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    Lava flow hazards at Mount Etna: constraints imposed by eruptive history and numerical simulations (2014)
    Nature Publishing Group
    Details
    Publication Date: 2017-04-04
    Description: Improving lava flow hazard assessment is one of the most important and challenging fields of volcanology, and has an immediate and practical impact on society. Here, we present a methodology for the quantitative assessment of lava flow hazards based on a combination of field data, numerical simulations and probability analyses. With the extensive data available on historic eruptions of Mt. Etna, going back over 2000 years, it has been possible to construct two hazard maps, one for flank and the other for summit eruptions, allowing a quantitative analysis of the most likely future courses of lava flows. The effective use of hazard maps of Etna may help in minimizing the damage from volcanic eruptions through correct land use in densely urbanized area with a population of almost one million people. Although this study was conducted on Mt. Etna, the approach used is designed to be applicable to other volcanic areas.
    Description: This work was developed within the framework of TecnoLab, the Laboratory for Technological Advance in Volcano Geophysics organized by INGV-CT, DIEES-UNICT, and DMI-UNICT.
    Description: Published
    Description: 3493
    Description: 1V. Storia e struttura dei sistemi vulcanici
    Description: 2V. Dinamiche di unrest e scenari pre-eruttivi
    Description: 3V. Dinamiche e scenari eruttivi
    Description: 4V. Vulcani e ambiente
    Description: 6A. Monitoraggio ambientale, sicurezza e territorio
    Description: 3IT. Calcolo scientifico e sistemi informatici
    Description: JCR Journal
    Description: restricted
    Keywords: Lava flow hazard ; Etna ; 04. Solid Earth::04.04. Geology::04.04.99. General or miscellaneous ; 04. Solid Earth::04.08. Volcanology::04.08.99. General or miscellaneous ; 05. General::05.01. Computational geophysics::05.01.99. General or miscellaneous ; 05. General::05.02. Data dissemination::05.02.99. General or miscellaneous ; 05. General::05.08. Risk::05.08.99. General or miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 3
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    A novel approach to estimate the eruptive potential and probability in open conduit volcanoes (2016)
    Nature Publishing Group
    Details
    Publication Date: 2017-04-04
    Description: In open conduit volcanoes, volatile-rich magma continuously enters into the feeding system nevertheless the eruptive activity occurs intermittently. From a practical perspective, the continuous steady input of magma in the feeding system is not able to produce eruptive events alone, but rather surplus of magma inputs are required to trigger the eruptive activity. The greater the amount of surplus of magma within the feeding system, the higher is the eruptive probability.Despite this observation, eruptive potential evaluations are commonly based on the regular magma supply, and in eruptive probability evaluations, generally any magma input has the same weight. Conversely, herein we present a novel approach based on the quantification of surplus of magma progressively intruded in the feeding system. To quantify the surplus of magma, we suggest to process temporal series of measurable parameters linked to the magma supply. We successfully performed a practical application on Mt Etna using the soil CO2 flux recorded over ten years.
    Description: Published
    Description: 30471
    Description: 2V. Dinamiche di unrest e scenari pre-eruttivi
    Description: 5V. Sorveglianza vulcanica ed emergenze
    Description: JCR Journal
    Description: restricted
    Keywords: eruptive potential ; eruptive probability ; open conduit volcanoes ; Etna ; Soil CO2 flux ; 04. Solid Earth::04.08. Volcanology::04.08.99. General or miscellaneous ; 04. Solid Earth::04.08. Volcanology::04.08.01. Gases ; 04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring ; 05. General::05.08. Risk::05.08.01. Environmental risk
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 4
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    Study on brood stock management of Litopenaeus vannamei using imported post larvae (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: In order to domesticate Litopenaeus vannamei as a solution to single species shrimp aquaculture of Penaeus indicus and to reduce risk of shrimp culture in emergency cases, this study was carried out. Initially the postlarvae reared from imported L. vannamei were cultured. After culture season the adult shrimps were transported to greenhouse ponds for wintering. It is then relocated to hatchery saloon. After eye stalk ablation and maturation the female brood stocks were introduced to matured male for copulation at ponds. During the study period, male and female shrimps attained full maturation at end – April by temperature over 25ºC, the copulation process was started significantly. Finally of the 12 instances of copulation, one instance resulted nauplii production. The best maturation was observed at 28 ֯C ±1 and salinity30 to 33PPT and pH of 8 to 8.3 Fresh sea worms and squid showed the highest effect on fecundity in brood stocks. Besides, the spring season was obtained to be the best period for brood stock production in Bushehr province.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Litopenaeus vannamei ; Brood stocks ; Larvae ; Species ; Shrimp ; Aquaculture ; Postlarvae ; L.vannamei ; Hatchery ; Maturation ; Nauplii ; pH ; Sea worm ; Squid
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 25pp.
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  • 5
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    Ecological study on rearing shrimp ponds (Litopenaeus vannemei) in Choebdeh Abadan (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: Following to introduce Vannamei shrimp (Litopenaeus vannamei) into Iran aquaculture industries by fisheries organization its postlarvae were successfully reared in ponds in Bushehr and Choebdeh in Khuzestan. Due to activity of Shrimp site and importance of input and output water quality, this study was done in 11 stations including: two stations in Bahmanshir river, two station in C4 and C5 irrigation canals, six staions in active farms along C4 cannel (Yonesi, Mosavei and Salman Zadeh), and C5 cannel (Mohamadi, Khairi and Ashraf Por) and one staion in output draing were selected. Sampling were carried out from May2009 befor beginning stocking to harvest time in October 2009. Physico- chemical parameters and plankton sampled biweekly and benthic animals and heavy metals were sampled monthly. Some parameters such as pH and temperature by using portable multy parameters and others. Analyzed with standard methods. Heavy metals were measured by plarography method (797 Vamtro). Plankton and benthos samples were studied only in Bahmanshir station. According to results the maximum values for DO (11.1 ppm) PO4 (1.86 ppm) NO3 (8.4 ppm) and TSS (4992 ppm), pH (8.4) NO2 (0.18 ppm) BOD5 (9.06 ppm) were measured. In comparison to aquaculture water quality standards except for TSS in river stations others are located in allowable range. We didn’t observed any main changes in water quality from river to output drainage. The results of biotic parameters in river stations showed that diatoms were the most group of phytoplanktons. Zooplankton groups were Copepods, Rotifera and Protozoa. Tintinids and Nematoda larvae were the most abundant zooplankton. Benthic animals were included nine crustacean species and two annelid species. Isopods with 52% were the most and ant group.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Ecological ; Physico-chemical ; Vannamei shrimp ; Litopenaeus vannamei ; Water quality ; Abadan aquaculture site ; Rearing ; Shrimp ; Ponds ; Sampling ; Plankton ; Heavy metals ; pH ; Temperature ; Benthos ; Phytoplankton ; Zooplankton ; Copepods ; Nematoda larvae
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 80pp.
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  • 6
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    The study of genetical differentiation of bisexual and parthenogenetic strains of Artemia urmiana by RAPD s method (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: The brine shrimp Artemia consists of a number of bisexual species and a large number of parthenogenetic forms, which collectively, inhabiting a wide range of hypersaline habitats. This research was carried out in order to study the genetic differentiation of Artemia urmiana and two parthenogenetic populations originated from surrounding lagoons of the Lake Urmia (Fesendoz, Saray village) and also to find the phylogenetic relationships of some Iranian Artemia (Qom, Arak, Golestan, and Shiraz) with a comparison to some foreign Artemia species (A. sinica, A. franciscana, A. parthenogenetica (Russia and Turkmenistan) using a molecular technique (PCRRAPD`s). Of a total number of 56 random primers (10 bp) survey, 29 and 26 oligonucleotides showed polymorphic patterns with highly reproducible bands in Artemia urmiana groups and Iranian Artemia groups.The highest percentage of polymorphic loci were in Artemia urmiana (P= 78.89 %) and in comparison with the other parthenogenetic forms, in parthenogenetic Artemia from Saray village (P= 59.8 %). The highest values of Shannon index were estimated in Artemia urmiana (I= 0.41), and in comparison with other parthenogenetic forms, in parthenogenetic Artemia from Saray village (I= 0.3). Analysis of molecular variance indicated that most variation were within populations (A. urmiana with parthenogenetic forms, FST= 0.35) and among populations (Iranian Artemia with foreign species, FST= 0.76). Genetic pattern was not in accordance to geographical distribution, which indicated the wide range of Artemia samples at different regions in Iran. UPGMA showed two distinct clusters in group I including A. urmiana with two parthenogenetic forms and four clusters in group II including Iranian Artemia with some foreign species. It is understood that two parthenogenetic populations (Fesendoz and Saray village) had close genetic relationship together with high value of heterozygosity in parthenogenetic Artemia from Saray village. Iranian Artemia (Qom, Arak, and Golestan) indicated close genetic relationships with A. parthenogenetica (Russia and Turkmenistan) with low values of heterozygosity. A sister group was generated including Shiraz and USA Artemia samples which attests a possible contamination of local water with A. franciscana. FST value revealed high genetic structuring at all studied groups. Besides, it is suggested that gene flow was not strong enough to prevent substantial genetic differentiation. Result could lead to a management programmes to use suitable Artemia strains with high genetic diversity, for culturing and establishment of gene bank of Artemia stocks in Lake Urmia.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Artemia urmiana ; Parthenogenetic populations ; Iranian Artemia ; Phylogenetic relationships ; RAPD`s ; Shrimp ; Bisexual species ; Phylogenetic ; A. sinica ; A. franciscana ; A. parthenogenetica ; Survey ; A. urmiana
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 56pp.
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  • 7
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    Effects of freezing duration, temperature and storage conditions on accumulation (distribution and redistribution) of trace elements in different tissues of two shrimp species from the Persian Gulf (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: This study investigates the distribution of three trace elements (Cd, Cu and Zn) in tissues (exoskeleton, abdominal muscle and hepatopancreas) of two shrimp species (Penaeus merguiensis and Penaeus semisulcatus). Special emphasis in this study was placed on evaluating the effects of storage conditions on redistribution of the elements and moreover, the potential roles of metallothionein in tissue redistribution. The specimens were collected from the northern part of Persian Gulf during August 2001 and September 2002. The concentrations of metals in the tissues were measured using an Inductively Coupled Plasma-Atomic Emission Spectrophotometer (ICP-AES) and an ICP-Mass Spectrometer (ICP-MS). Metallothionein levels were determined using Differential Pulse Polarography. Results show a similar hierarchy for Cd and Cu concentrations among different tissues as follows: hepatopancreas〉 exoskeleton〉 muscle; and for Zn, the hepatopancreas again contained the highest levels, though there were not any significant differences in Zn concentrations between muscle and exoskeleton. Significant differences were found between the species in the case of Cd and Zn concentrations. Cd and Zn levels in P. semisulcatus were markedly higher than in P. merguiensis. In general, there were highly significant differences among the storage conditions from accumulation the selected trace elements and metallothionein in both species point of view, but in most cases no significant differences could be observed among the fresh, refrigerated and frozen specimens of P. semisulcatus. In regards to Zn and Cu accumulation in edible (muscle) tissues of P. merguiensis, optimum conditions for frozen storage is -30ºC as ice frozen, and in terms of short term storage, one day refrigeration is recommended. The redistribution of Zn and Cu during the storage period can be attributed to the role of metallothionein in their transport from organ(s) to muscle during storage. The variations in pH values measured in the muscle of P. merguiensis in different storage conditions showed a similar trend with metallothionein, Zn and Cu. In contrast it appears that cadmium is transported from muscle to the other tissues. Exoskeleton is probably one of the recipient tissues of cadmium. The inter-elemental relationships were assessed for each species, separately. A significant positive relationship was observed between the concentrations of Zn and metallothionein in P. semisulcatus, whereas in P. merguiensis, Cd concentrations decreased significantly with increasing metallothionein. Highly significant differences between the sexes in Cu and Zn contents could be detected. Highly significant size-related differences were found in the levels of Cd, Cu and metallothionein in the selected tissues of the shrimp species. Comparison between the mean concentrations of the elements in muscle tissue and existing guidelines indicate that in nearly all cases the concentrations were well below permissible levels for human consumption. The only exception was observed regarding mean values of Cd, which was somewhat greater than some of the recommended levels.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Heavy metals ; Distribution ; Redistribution ; Shrimp ; Metallothionein ; Storage conditions ; Tissues
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 50pp.
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  • 8
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    Assessment of environmental conditions of some important shrimp habitats in the east and west of Hormozgan province (Tiab, Yekshoveh, Laft and Khamir Estuaries) (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: Protecting coastal aquaculture systems as a habitat for aquatic systems is one of the serious concerns of the world. In the present study, spatial and temporal variations of Some physicochemical parameters, nutrient concentration and water quality In some estuaries of East and West of Hormozgan province were investigated from March 2015 to February 2016.Data analysis was performed using multivariate statistical methods (such as: CA,DA and PCA Analysis) and Eutrophication and water quality index using multivariable indices. The average annual variation of various parameters studied in West Azarbaijan province of Hormozgan is as follows:water temperature (18.1-34.6Co ), Salinity (35-45.6 ppt), Dissolved Oxygen (4.6-7.4 mg.l), pH (8.01-8.4), Nitrate (32.5- 403.5µmo.l), Nitrite (3.6-50.7 µmo.l), Total Ammonia (9.8-311.2 µmo.l), phosphate (22-569.1.6 µmo.l), and chlorophyll-a is equal to(0.46-4.04 mg.m3 ), respectively.Also, the mean annual variation of the various parameters studied in the eastern province of Hormozgan has been as follows: water temperature (18.1-34.6Co ), Salinity (35-45.6 ppt), Dissolved Oxygen (4.6-7.4 mg.l), pH (8.01-8.4), Nitrate (32.5-403.5µmo.l), Nitrite (3.6- 50.7 µmo.l), Total Ammonia (9.8-311.2 µmo.l), phosphate (22-569.1.6 µmo.l), and chlorophyll-a is equal to(0.46-4.04 mg.m3 ), respectively. One-Way Analysis of Variance test showed that the significant for some differences physicochemical parameters varied seasonally.Discriminant analysis, water quality conditions in terms of location classified into three groups.The analysis of PCA showed that the amount of nitrate and total ammonia in the tiba and phosphate in Laft and Kgamir Stricks with two sources (domestic and agricultural waste) and natural sources, can be considered as the main factors affecting the intensity of Eutrofication.The range of trophic Trix and TI eutrophication index in the studied areas were 4.3-6.1 and 3.5-4.2 respectively.According to on the indicators of and TI index, trophic status was classified into mesotrophic(in laft and khamir areas), Oligo-Mezotrophic(Yekshoveh area) and mezo- eutrophic respectively. Also Based on Trix index, the Water quality status was from bad condition in tiab area and good condition in laft, khamir and yekshoveh areas respectively. The determination of trophic conditions with a single-variable method based on chlorophyll a and Total inorganic Dissolved materials(DIN) showed a Very good agreement with multivariate trophic indices.The range of changes in some of the parameters studied in this study was more than the reported limit for the conservation of aquatic life in coastal areas.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Environmental ; Shrimp ; Habitats
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 76pp.
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  • 9
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    Population genetic study on two commercial shrimp species and determining of DNA-Barcoding of 6 – 8 species by partial sequencing of mtDNA using molecular method (PCR-Sequencing) (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: Barcodes are short segments of DNA that can be used to uniquely identify an unknown specimen to species, particularly when diagnostic morphological features are absent. These sequences could offer a new forensic tool in plant and animal conservation especially for endangered species. Ideally, barcodes could be used to positively identify illegally obtained material even in cases where diagnostic features have been purposefully removed or to release confiscated organisms into the proper breeding population. In the present study molecular data were used besides the morphological ones to introduce a specific barcode for six selected species of Shrimp. Based on the previous phylogenetics study, it has been proved that the mitochondrial COI gene in crustacean is a good discriminative marker at both inter- and intra-specific levels. In this regard, six species of shrimp (Fenoro penaeus indicus, Fenoro penaeus merguensis, penaeus semisulcatus, Metapenaeus affinis, Marsupenaeus japonicas, Fenoro penaeus penicillatus were collected from the Persian Gulf and Oman sea. After identification, the total DNA was extracted; COI gene was first amplified and then sequenced for each species. Finally the collected data were analyzed with the specific phylogenetic software. Molecular analysis revealed some degree of interpopulation differences but six good species were recognizable based on COI sequences. Also for population study molecular data of two species Penaeus semisulcatus and Metapenaeus affinis were analysed base on COI RFLP and 16SrRNA sequences respectively. The results would be helpful to protect shrimp species.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Commercial ; Morphological ; Population ; Genetic ; Shrimp ; Species ; DNA barcoding ; Partial sequencing ; mtDNA ; Molecular method ; PCR ; Fenoro penaeus indicus ; Fenoro penaeus merguensis ; Penaeus Semisulcatus ; Metapenaeus affinis ; Marsupenaeus japonicas ; Fenoro penaeus penicillatus
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 74pp.
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  • 10
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    Effects of added substrate on growth and survival of juvenile Indian white shrimp (Penaeus indicus H. Milne Edwards) (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: The effects of added artificial substrates on juvenile white Indian shrimps (Penaeus indicus) were evaluated. .....
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Shrimp ; Aquaculture ; Juveniles ; Feed conversation ratio
    Repository Name: AquaDocs
    Type: Report , Not Known
    Format: 61pp.
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