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  • Iran  (18)
  • Identification  (6)
  • Monsoon  (4)
Collection
Keywords
Years
  • 1
    Publication Date: 2021-05-19
    Description: The fish larvae identification survey was carried out in Iranian waters of Oman Sea from Hormuz strait to Gwader Bay in 2009 at pre and post monsoon periods. Sampling was done by plankton net with 300 μ mesh size. Totally, 168 specimens were collected that belong to the three genera; Benthosema، Diaphus and Lampadena. Two species named Benthosema pterotum, B.fibulatum were identified. B.pterotum has pigment on the tip of the lower jaw and snout whereas B .fibulatum lacks these discriminative characters. Two genera Diaphus and Lampadena have a row of melanophores in post-anal region ventrally which discriminate them from Benthosema. Diaphus is separated from Lampadena with a small melanophore at the hypural.
    Description: Published
    Keywords: Myctophidae ; Benthosema ; Diaphus ; Lampadena ; Larvae ; Identification
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.41-51
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  • 2
    Publication Date: 2021-05-19
    Description: The study and research of abundance and diversity variation of fish larva (Ichthyoplankton stages) was done in Gowatr Bay during autumn 2006 - summer 2007. Five stations were selected for sampling, and Bongo-Net with 300µ mesh size was towing from bottom to surface. During of survey, totally 531 larvae belong to 11 families were collected and identified. The mean abundance estimated 12.17 larvae per 10 m2, which three fish larva family including: Gobiidae, Clupeidae and Engraulidae were dominant (86% of relative abundance). The result showed that there was significant differences between pre and post-monsoon fish larvae abundances (p〈.05), and there were not significant differences between stations (p〉.05). In pre-monsoon 4 families were identified of which Clupeidae introduced as indicator group, whereas in post-monsoon 10 families were identified and Gobiidae was indicator family, accompany with increase of diversity. PCA result was shown, temperature as the main factor affected on fish larvae assemblage was found with a significant decrease of 11.9 °C after monsoon phenomenon.
    Description: Published
    Keywords: Biology ; Physiology ; Fish larva ; Indicator family ; PCA ; Monsoon
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.427-436
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  • 3
    Publication Date: 2021-05-19
    Description: Sillaginids are one of the important fishes in coastal waters of Persian Gulf, whose larvae of different species are morphologically very similar to each other and identification of them to species level is very difficult. In this study a total of 4195 Sillaginidae larvae were collected from five inlets (Shif, Lashkari, Ramleh, Dubbeh, Farakeh) and one sampling site in the coastal area of Bushehr Province using a Bongo-net. Morphological and genetic methods were used to identity larvae of this family. The larvae were morphologically divided into two groups, depending on 34 or 38 myomers. The larvae with 34 myomeres were identified as Sillago sihama. To identify larvae with 38 myomers, 12 individuals of postflexion larvae were selected and the morphological characteristics such as number of dorsal and anal fins as well as DNA barcoding of COI were used. According to morphological characteristics, the larvae were divided into two species; Sillago arabica and Sillago attenuata. Genetic studies were done by sequencing of 625 base pair of COI gene. Genetic distances calculated using K2P model between these two species was 18% to 19.7% which indicate that DNA barcoding confirms morphological method and it can be used for identifying younger larvae whose fin rays have not been developed and are unidentifiable with morphological methods.
    Description: Published
    Keywords: Sillaginid ; Perciformes ; Sillaginidae ; Sillago arabica ; Sillago attenuata ; Sillago sihama ; Cytochrome oxidase subunit ; Species ; Identification ; Larvae ; DNA ; Morphological ; Methods ; Fish ; Genetic
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.1-10
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  • 4
    Publication Date: 2021-05-19
    Description: During the conducted cruises for implementation of projects entitling, "Studying Shrimp Nursery in Bushehr Esturies" and "Assessment of Bentic Stocks through Swept Area Method" in Iranian waters of the Persian Gulf, some samples of aquatics were collected. Among the collected samples the species belonging to Platycephalidae were identified in the region and are included: Platycephalus indicus, Grammoplites suppositus, Grammoplites scaber G. suppositus had more abundance than two other species (56%) and P. indicus had the largest size of total length.
    Description: Published
    Keywords: Plathycephalidae ; Platycephalus indicus ; Grammoplites suppositus ; Grammoplites scaber ; Grammoplites suppositus ; Fish ; Species ; Identification ; Abundance ; Bentic ; Area
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.33-48
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  • 5
    Publication Date: 2021-05-19
    Description: The coastal area of the water and drought graft area and the common area of the performance of two ecosystems with separate characteristics are one another. Coastal environment is a natural evolutionary system that includes the most complex and, at the same time, the richest ecosystems on the planet. This region is a transitional and highly vulnerable region and is endangered by the accumulation of pollutants due to the acceptance of drought and marine pollutants. Marine pollution and the effects of drought activities that are the result of socioeconomic development on the coastline and its catchments are one of the most important issues in most of the world, which directly affects coastal habitats. According to research conducted in Iran on identifying areas and sensitive resources, these areas and resources are divided into two distinct groups: 1) The group of biologically sensitive resources: includes mangrove forests, coral reefs, marine turtles, aquatic birds, marine plants and marine mammals. 2) The group of sensitive physical resources: includes the physical building of beaches in the sub-sections of mud, sand, rocky and hydrographic forms of shores in aquatic, estuarine, clay and small bay.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Aquatics habitats ; Coastal sensetive area ; Pollutants ; Marine ; Identification ; Genetic
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 98pp.
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  • 6
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    In:  http://aquaticcommons.org/id/eprint/21991 | 18721 | 2018-01-21 11:43:36 | 21991 | Iranian Fisheries Science Research Institute
    Publication Date: 2021-07-06
    Description: The fish larvae identification survey was carried out in Iranian waters of Oman Sea from Hormuz strait to Gwader Bay in 2009 at pre and post monsoon periods. Sampling was done by plankton net with 300 μ mesh size. Totally, 168 specimens were collected that belong to the three genera; Benthosema، Diaphus and Lampadena. Two species named Benthosema pterotum, B.fibulatum were identified. B.pterotum has pigment on the tip of the lower jaw and snout whereas B .fibulatum lacks these discriminative characters. Two genera Diaphus and Lampadena have a row of melanophores in post-anal region ventrally which discriminate them from Benthosema. Diaphus is separated from Lampadena with a small melanophore at the hypural.
    Keywords: Biology ; Fisheries ; Larvae ; Myctophidae ; Identification ; Oman Sea ; Iran ; Benthosema ; Diaphus ; Lampadena ; Benthosema pterotum
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 41-50
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  • 7
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    In:  http://aquaticcommons.org/id/eprint/22697 | 18721 | 2018-05-16 18:28:55 | 22697 | Iranian Fisheries Science Research Institute
    Publication Date: 2021-07-09
    Description: The study and research of abundance and diversity variation of fish larva (Ichthyoplankton stages) was done in Gowatr Bay during autumn 2006 - summer 2007. Five stations were selected for sampling, and Bongo-Net with 300µ mesh size was towing from bottom to surface. During of survey, totally 531 larvae belong to 11 families were collected and identified. The mean abundance estimated 12.17 larvae per 10 m^2, in which three fish larva family including: Gobiidae, Clupeidae and Engraulidae were dominant (86% of relative abundance). The result showed that there was significant differences between pre and post-monsoon fish larvae abundances (p〈.05), and there were not significant differences between stations (p〉.05). In pre-monsoon 4 families were identified of which Clupeidae introduced as indicator group, whereas in post-monsoon 10 families were identified and Gobiidae was indicator family, accompany with increase of diversity. PCA result was shown, temperature as the main factor affected on fish larvae assemblage was found with a significant decrease of 11.9 °C after monsoon phenomenon.
    Keywords: Biology ; Fisheries ; Fish larva ; Indicator family ; PCA ; Monsoon ; Gowatr Bay ; Oman Sea ; Iran ; abundance ; Ichthyoplankton ; mesh size
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 427-436
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  • 8
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    In:  http://aquaticcommons.org/id/eprint/22977 | 18721 | 2018-06-08 22:18:10 | 22977 | Iranian Fisheries Science Research Institute
    Publication Date: 2021-07-12
    Description: Studies on larval fish abundance allow important inferences about the spawning grounds, reproduction season and migration pattern of fishes. Larval densities can also be used to estimate the abundance index, which in turn can be correlated to the fisheries yield, and provide an alternative approach for measuring the size of the spawning stock. Previous studies in this ecosystem have focused on the abundance of fish larva without consideration of daily fish larva variations. ... In this research we consider the monsoon as an important phenomenon, affecting the daily fish larval distribution.
    Keywords: Biology ; Ecology ; Environment ; Fisheries ; Larval fish ; Ecological groups ; Day/night ; Monsoon ; Ecology ; Chabahar Bay ; Iran
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 1609-1615
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  • 9
    Publication Date: 2021-06-25
    Description: Sillaginids are one of the important fishes in coastal waters of Persian Gulf, whose larvae of different species are morphologically very similar to each other and identification of them to species level is very difficult. In this study a total of 4195 Sillaginidae larvae were collected from five inlets (Shif, Lashkari, Ramleh, Dubbeh, Farakeh) and one sampling site in the coastal area of Bushehr Province using a Bongo-net. Morphological and genetic methods were used to identity larvae of this family. The larvae were morphologically divided into two groups, depending on 34 or 38 myomers. The larvae with 34 myomeres were identified as Sillago sihama. To identify larvae with 38 myomers, 12 individuals of postflexion larvae were selected and the morphological characteristics such as number of dorsal and anal fins as well as DNA barcoding of COI were used. According to morphological characteristics, the larvae were divided into two species; Sillago arabica and Sillago attenuata. Genetic studies were done by sequencing of 625 base pair of COI gene. Genetic distances calculated using K2P model between these two species was 18% to 19.7% which indicate that DNA barcoding confirms morphological method and it can be used for identifying younger larvae whose fin rays have not been developed and are unidentifiable with morphological methods.
    Keywords: Biology ; Fisheries ; cytochrome oxidase subunit I ; fish identification ; Sillago arabica ; Sillago attenuata ; Sillago sihama ; Iran ; Bushehr province ; Persian Gulf ; DNA ; Species ; identification
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 1-10
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  • 10
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    In:  http://aquaticcommons.org/id/eprint/22364 | 18721 | 2018-03-28 22:09:25 | 22364 | Iranian Fisheries Science Research Institute
    Publication Date: 2021-07-04
    Description: Khark and Kharko Islands are located at far northern point of fringing coral reefs in the Iranian coast of the Persian Gulf. These coralline are the habitats of the wildlife refuge with total area of 2400ha and located in the territory of Bushehr province. The present study was carried out from July 2006 to June 2007 over 12 stations. Sampling was conducted obliquely from bottom using Bongo-net plankton sampler with 500µ of mesh size. In total, 1808 specimens, both in pre and post flexion stages were collected and examined. They were belonging to 45 families from different ecological groups (21 coralline and 24 non coralline fish larvae families ). 96% of examined fish larvae were in preflexion stage. Some families are new ones from the area . Among identified families, Clupeidae, Blenniidae, Sillaginidae, Atherinidae and Tripterygiidae were dominant families in studied area and the peaks were estimated in spring. The mean abundance of total fish larvae was 18.71 per 10m² of sea surface. The most abundant families were Clupeidae, Sillaginidae, Blenniidae, Atherinidae and Tripterygiidae in which comprised 65% of fish larvae. Abundance in spring showed significant difference with other seasons. The distribution pattern of fish larvae changed seasonally in both groups, increasing in east coasts of Khark Island and in three coastal stations during summer and autumn and in west coast of Khark in spring. The distribution of fish larvae seemed to be correlated to sea currents.
    Description: Article includes abstract in Farsi on last page.
    Keywords: Biology ; Fisheries ; Coralline fish larvae ; Abundance ; Khark and Kharko Islands ; Persian Gulf ; Iran
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 173-184
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