Species composition and distribution of fishes and prawns in the Amur River channel
istribution of fishes and prawns in the Amur River (40–960 km from the mouth) is described on results of the beam-trawl survey conducted in September-October, 2003 (57 trawl stations at the depth of 1.5–23.0 m). In total, 2584 ind. of 22 fish species and 1077 ind. of 1 invertebrate species (prawn Pa...
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Transactions of the Pacific Research Institute of Fisheries and Oceanography
2020-06-01
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| Series: | Известия ТИНРО |
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| Online Access: | https://izvestiya.tinro-center.ru/jour/article/view/560 |
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| author | V. N. Koshelev N. V. Kolpakov |
| author_facet | V. N. Koshelev N. V. Kolpakov |
| author_sort | V. N. Koshelev |
| collection | DOAJ |
| description | istribution of fishes and prawns in the Amur River (40–960 km from the mouth) is described on results of the beam-trawl survey conducted in September-October, 2003 (57 trawl stations at the depth of 1.5–23.0 m). In total, 2584 ind. of 22 fish species and 1077 ind. of 1 invertebrate species (prawn Palaemon modestus) were caught. The highest species richness was registered for orders Cypriniformes (13 species) and Siluriformes (4 species). The fish and prawn stocks were evaluated as 32.161 . 106 ind. (583.8 t) for bottom and near-bottom fish and 4.887 . 106 ind. (8.8 t) for prawns. Two commercial fish species were the most abundant: catfishes Tachysurus brashnikowi (16.26 . 106 ind. or 32.9 % of total biomass) and T. sinensis (4.32 . 106 ind. or 24.0 % of total biomass); other 6 fish species with considerable biomass were lizard gudgeon Saurogobio dabryi (12.6 %), ussuri catfish T. ussuriensis (9.7 %), amur white-pinned gudgeon Romanogobio tenuicorpus (7.8 %), amur sturgeon Acipenser schrenckii (5.6 %), amur gudgeon Gobio cynocephalus (2.4 %), and kaluga Huso dauricus (0.6 %). Distribution density varied in the range of 0.01–2.57 g/m2 (on average 0.45 ± 0.27 g/m2) for fish and 0.005–0.044 g/m2 (0.021 ± 0.012 g/m2) for prawns. Abundance of both fish and prawns increased multifold towards the Amur mouth that correlated with increasing of forage benthos biomass in the same direction. So, the main portion of fish biomass (82.4 %) was distributed in the Amur River downstream (40–400 km from the mouth) and the prawn stock was concentrated completely in its lowermost part (50–150 km from the mouth). |
| format | Article |
| id | doaj-art-3d557ab493ae4297a2eb45e45aea8ad4 |
| institution | DOAJ |
| issn | 1606-9919 2658-5510 |
| language | Russian |
| publishDate | 2020-06-01 |
| publisher | Transactions of the Pacific Research Institute of Fisheries and Oceanography |
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| series | Известия ТИНРО |
| spelling | doaj-art-3d557ab493ae4297a2eb45e45aea8ad42025-08-20T03:19:02ZrusTransactions of the Pacific Research Institute of Fisheries and OceanographyИзвестия ТИНРО1606-99192658-55102020-06-01200229230710.26428/1606-9919-2020-200-292-307516Species composition and distribution of fishes and prawns in the Amur River channelV. N. Koshelev0N. V. Kolpakov1Khabarovsk branch of VNIRO (KhabarovskNIRO)Khabarovsk branch of VNIRO (KhabarovskNIRO)istribution of fishes and prawns in the Amur River (40–960 km from the mouth) is described on results of the beam-trawl survey conducted in September-October, 2003 (57 trawl stations at the depth of 1.5–23.0 m). In total, 2584 ind. of 22 fish species and 1077 ind. of 1 invertebrate species (prawn Palaemon modestus) were caught. The highest species richness was registered for orders Cypriniformes (13 species) and Siluriformes (4 species). The fish and prawn stocks were evaluated as 32.161 . 106 ind. (583.8 t) for bottom and near-bottom fish and 4.887 . 106 ind. (8.8 t) for prawns. Two commercial fish species were the most abundant: catfishes Tachysurus brashnikowi (16.26 . 106 ind. or 32.9 % of total biomass) and T. sinensis (4.32 . 106 ind. or 24.0 % of total biomass); other 6 fish species with considerable biomass were lizard gudgeon Saurogobio dabryi (12.6 %), ussuri catfish T. ussuriensis (9.7 %), amur white-pinned gudgeon Romanogobio tenuicorpus (7.8 %), amur sturgeon Acipenser schrenckii (5.6 %), amur gudgeon Gobio cynocephalus (2.4 %), and kaluga Huso dauricus (0.6 %). Distribution density varied in the range of 0.01–2.57 g/m2 (on average 0.45 ± 0.27 g/m2) for fish and 0.005–0.044 g/m2 (0.021 ± 0.012 g/m2) for prawns. Abundance of both fish and prawns increased multifold towards the Amur mouth that correlated with increasing of forage benthos biomass in the same direction. So, the main portion of fish biomass (82.4 %) was distributed in the Amur River downstream (40–400 km from the mouth) and the prawn stock was concentrated completely in its lowermost part (50–150 km from the mouth).https://izvestiya.tinro-center.ru/jour/article/view/560amur riverbeam-trawlfishprawnfish distributionfish abundance |
| spellingShingle | V. N. Koshelev N. V. Kolpakov Species composition and distribution of fishes and prawns in the Amur River channel Известия ТИНРО amur river beam-trawl fish prawn fish distribution fish abundance |
| title | Species composition and distribution of fishes and prawns in the Amur River channel |
| title_full | Species composition and distribution of fishes and prawns in the Amur River channel |
| title_fullStr | Species composition and distribution of fishes and prawns in the Amur River channel |
| title_full_unstemmed | Species composition and distribution of fishes and prawns in the Amur River channel |
| title_short | Species composition and distribution of fishes and prawns in the Amur River channel |
| title_sort | species composition and distribution of fishes and prawns in the amur river channel |
| topic | amur river beam-trawl fish prawn fish distribution fish abundance |
| url | https://izvestiya.tinro-center.ru/jour/article/view/560 |
| work_keys_str_mv | AT vnkoshelev speciescompositionanddistributionoffishesandprawnsintheamurriverchannel AT nvkolpakov speciescompositionanddistributionoffishesandprawnsintheamurriverchannel |