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  • 1
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    Review and show distribution pattern of marine fish larvae of Iranian coastal waters Persian Gulf by GIS (2018)
    Details
    Publication Date: 2021-05-19
    Description: The survey of fish larva in Iranian water has done from 1995 till 2007. The aims of this study were included of identification, abundance, diversity index and distribution of fish larva in Iranian coastal waters of the Persian Gulf. In all research, sampling was done by Bongo net in day time. Totally 119006 specimen was collected and identified in 54 fish larva family from 90 stations. Gobiidae, Engraulididae ، Leiognathidae، Sparidae، Sillaginidae، Clupeidae ,Cynoglossidae، Sciaenidae were the dominate families with higher abundance. 83342 specimen was collected from Khuzestan waters( higher than others )in 27 family,26797 specimen in 52 fish larva family in Bushehr waters. The result of GIS map was shown; Clupeidae with three subfamily distributed in all Iranian waters with more abundance in summer and autumn, Sillaginidae was percent in all study area with more abundance in Bushehr waters, Gobiidae was in estuary habitat with higher abundance in Khuzestan waters in warm period, Sparidae distributed in the Persian gulf in more month of year, Engraulididae was collected from area with more abundance from Hormozgan with two spawning peaks ;spring and autumn. Cynoglossidae with higher abundance from Khuzestan waters, Leiognathidae in Khuzestan waters was in warm period and in others site in all month. Sciaenidae was in Hormozgan more than others area. Mosa Creek-Estuary in Khuzestan with homogeny habitat was attractive the family related to the shore and muddy kind family, such as: Gobiidae, Leiognathidae whereas Bushehr waters with variety of habitat; Creek-Estuary, mangrove forest, rocky coral, coral path was attractive more family with different groups such as: lutjanidae ، Cepolidae ، Apogonidae، Lethrinidae and Atherinidae that some case only recorded from Bushehr in Persian gulf. Coastal waters of Bushehr province habitat was affected of sea waves and current therefore the abundance of family lower than Khuzestan waters except in some deeper stations. Finally there are different occasions influencing on fish larvae percent, abundance and distribution of them that are include: abiotic factors (temperature, salinity, depth and clarity), habitat, adult spawning behavior, morphologic characters of coastal area, In addition, from the type and geomorphologic structure of marine – coastal area, the difference between abundance and diversity of ichthyoplankton in two main coasts group as name wave dominant (open coasts) and tide dominant 9semi closed coasts) have harmony with together and are clear.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Marine ; Larvae ; GIS ; Survey ; Abundance ; Diversity ; Sampling ; Specimens ; Gobiidae ; Engraulididae ; Leiognathidae ; Sparidae ; Sillaginidae ; Clupeidae ; Cynoglossidae ; Sciaenidae
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 87pp.
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  • 2
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    Study of diversity & abundance of ichthyoplankton in Sistan & Baluchestan Province (phase: Guatr Creek & Bay) (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25151 | 18721 | 2018-08-26 16:53:58 | 25151 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Identification & determination of abundance Ichthyoplankton in Gouatr (Creek & Estuary) in Chahdahar region was carried out from Octber 2005 to September 2006. Sampling period was seasonal and 6 stations were selected. Sampling stations no. 1, 2 ,4 were located in the sea waters of Creek , no.5 & 6 in Gouatr Estuary and no.3 was near to Bahokalat Estuary. The results of environmental factors measurement were as follaws: Main depth of area: 4m, Salinity: 37.08 (g/l), pH: 8.19, air temperature: 29.8? and water temperature: 27.3?, Clarity: 0.75m Sampling was conducted using single ring Bongo-net with 333µ of mesh size. Totally, 585 specimens of diverse fish larvae stages were collected in 20 sampling. The dominant families of fish larvae were Gobiidae, Clupeidae and Engraulidae with 86% of total abundance and 11 families of fish larvae were identified. Most of the fish larvae were observed in winter season and some of them such as Clupeidae, Gobiidae, Blennidae Engraulididae and Sillaginidae were found in most season. The stage of the most samples was Preflexion (87%) therefore , the area is a nursery ground. Commercial fish larvae were carangidea, Sparidae, Clupeidae, Sillaginidae, Hemiramphidae, Engraulidae and Nemeptridae but they were only 37% from total abundance. The main diversity was 0. 6236. There is no correlation between abundance, temperature and salinity. The results showed a significant different between abundance from pre monsoon and post monsoon but no significant different between diversity in pre monsoon and post monsoon.
    Keywords: Biology ; Iran ; Guatr ; Sistan & Baluchestan ; Larvae ; Fish ; Identification ; Abundance ; Diversity ; Ichthyoplankton
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 88
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  • 3
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    Review and show distribution pattern of marine fish larvae of Iranian coastal waters Persian Gulf by GIS (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25418 | 18721 | 2018-09-23 16:03:17 | 25418 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: The survey of fish larva in Iranian water has done from 1995 till 2007. The aims of this study were included of identification, abundance, diversity index and distribution of fish larva in Iranian coastal waters of the Persian Gulf. In all research, sampling was done by Bongo net in day time. Totally 119006 specimen was collected and identified in 54 fish larva family from 90 stations. Gobiidae, Engraulididae ، Leiognathidae، Sparidae، Sillaginidae، Clupeidae, Cynoglossidae، Sciaenidae were the dominate families with higher abundance. 83342 specimen was collected from Khuzestan waters (higher than others) in 27 family, 26797 specimen in 52 fish larva family in Bushehr waters. The result of GIS map was shown; Clupeidae with three subfamily distributed in all Iranian waters with more abundance in summer and autumn, Sillaginidae was percent in all study area with more abundance in Bushehr waters, Gobiidae was in estuary habitat with higher abundance in Khuzestan waters in warm period, Sparidae distributed in the Persian gulf in more month of year, Engraulididae was collected from area with more abundance from Hormozgan with two spawning peaks; spring and autumn. Cynoglossidae with higher abundance from Khuzestan waters, Leiognathidae in Khuzestan waters was in warm period and in others site in all month. Sciaenidae was in Hormozgan more than others area. Mosa Creek-Estuary in Khuzestan with homogeny habitat was attractive the family related to the shore and muddy kind family, such as: Gobiidae, Leiognathidae whereas Bushehr waters with variety of habitat; Creek-Estuary, mangrove forest, rocky coral, coral path was attractive more family with different groups such as: lutjanidae ، Cepolidae ، Apogonidae، Lethrinidae and Atherinidae that some case only recorded from Bushehr in Persian gulf. Coastal waters of Bushehr province habitat was affected of sea waves and current therefore the abundance of family lower than Khuzestan waters except in some deeper stations. Finally there are different occasions influencing on fish larvae percent, abundance and distribution of them that are include: abiotic factors (temperature, salinity, depth and clarity), habitat, adult spawning behavior, morphologic characters of coastal area, In addition, from the type and geomorphologic structure of marine – coastal area, the difference between abundance and diversity of ichthyoplankton in two main coasts group as name wave dominant (open coasts) and tide dominant 9semi closed coasts) have harmony with together and are clear.
    Keywords: Aquaculture ; Iran ; Persian Gulf ; Bushehr Province ; Khuzestan province ; Marine ; Larvae ; GIS ; Survey ; Abundance ; Diversity ; Sampling ; Specimens ; Gobiidae ; Engraulididae ; Leiognathidae ; Sparidae ; Sillaginidae ; Clupeidae ; Cynoglossidae ; Sciaenidae
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 87
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  • 4
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    Phytoplankton, zooplankton and ichthyoplankton abundance, distribution and diversity investigation in the Iranian waters of the Oman Sea (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25498 | 18721 | 2018-10-05 07:00:59 | 25498 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: This study was carried out in the North of Oman Sea in parts of Iranian waters during pre-monsoon and post monsoon seasons between 2007 and 2009. Number of 10 transects were chosen from coastal to maximum 50 meter depth. Cruise was done with Fredous ship and Rosette bottle multi watersampler was used for sampling. A phytoplankton community in the North of Oman Sea included in 204 species and divided in six taxonomic divisions: Bacillariophyceae (89 species), Dinophyceae (105species), Cyanophyceae (6species), Dicthyochophyceae (2species), Euglenaphyceae and silicoflagellate each (1species) respectively. Density decreased in most transects from inshore toward offshore waters and maximum density was in surface layear.Significant differences between each transects were found. Dinophyceae and Bacillariophyceae were dominant in pre-monsoon and post-monsoon respectively throughout two years. Important genuses of diatoms are Rhizosolenia, Chaetoceros, Pleurosigma, Coscinodiscus, Gyrosigma, Nitzscha, Navicula, and Leptocylindrus. And also there were Dinophyceae like: Scrippsiella, Pyrophacus, Gymnodinium, Pyrodinium, Prorocentrum, Cochlodinium, and Noctiluca. Phytoplankton density in the post-monsoon were recorded higher than pre-monsoon, furthermore phytoplankton density in 2009 was more than 2007. Cochlodinium polykrikoides density increased in 2009 especially in the pre-monsoon then dropped to post-monsoon season. Zooplankton population in this study is characterized by 8 phylum, 8 classes, 15 orders, 35 families and 78 genuses. Copepoda was the most abundant group of zooplankton and included in 4 orders of Cyclopoida, Calanoida, Poecilostomatoid and Harpacticoida. The static result showed significance among different transects layers and lines. In this study, 31 ichthyoplankton families with different density and distribution were recorded. In the pre-monsoon eight families was identified and Scainidaea family had the highest density and also in postmonsoon 6 families was classified in which scainidae was dominant family. In pre-monsoon 2009, we found 8 families that Pomacentridae family had higher density; Hemiramophidae was in the second position and followed by Clupeidae. In post-monsoon season density and diversity were increased and 23 families were recorded. Myctophidae family was the most abundant. The highest frequency there was other important families like Engraulidae, Synodontidae, Scainidae, and Leiognathidae in this period. Result of this study indicated that the monsoon was important and effect on abundance, distribution and species composition of plankton.
    Keywords: Ecology ; Iran ; Oman Sea ; Iranian water ; Phytoplankton ; Zooplankton ; Ichthyoplankton ; Abundance ; Distribution ; Diversity ; Sampling ; Bacillariophyceae ; Dinophyceae ; Cyanophyceae ; Dicthyochophyceae ; Euglenaphyceae ; Silicoflagellate ; Rhizosolenia ; Chaetoceros ; Pleurosigma ; Gyrosigma ; Nitzscha ; Leptocylindrus ; Leptocylindrus
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 122
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  • 5
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    Study of diversity & abundance of Ichthyoplankton in Sistan & Baluchestan Province ( phase : Guatr Creek & Bay) (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: Identification & determination of abundance Ichthyoplankton in Gouatr ( Creek & Estuary ) in Chahdahar region was carried out from Octber 2005 to September 2006. Sampling period was seasonal and 6 stations were selected. Sampling stations no. 1, 2 ,4 were located in the sea waters of Creek , no.5 & 6 in Gouatr Estuary and no.3 was near to Bahokalat Estuary. The results of environmental factors measurement were as follaws: Main depth of area: 4m, Salinity: 37.08 (g/l), pH: 8.19, air temperature: 29.8? and water temperature: 27.3?, Clarity: 0.75m Sampling was conducted using single ring Bongo-net with 333µ of mesh size. Totally, 585 specimens of diverse fish larvae stages were collected in 20 sampling. The dominant families of fish larvae were Gobiidae, Clupeidae and Engraulidae with 86% of total abundance and 11 families of fish larvae were identified. Most of the fish larvae were observed in winter season and some of them such as Clupeidae, Gobiidae, Blennidae Engraulididae and Sillaginidae were found in most season. The stage of the most samples was Preflexion ( 87%) therefore , the area is a nursery ground. Commercial fish larvae were carangidea, Sparidae, Clupeidae, Sillaginidae, Hemiramphidae, Engraulidae and Nemeptridae but they were only 37% from total abundance. The main diversity was 0. 6236. There is no correlation between abundance, temperature and salinity. The results showed a significant different between abundance from pre monsoon and post monsoon but no significant different between diversity in pre monsoon and post monsoon.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Larvae ; Fish ; Identification ; Abundance ; Diversity ; Ichthyoplankton
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 88pp.
    Location Call Number Expected Availability
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