биота российских вод японского моря - Materials of Alexey Shipunov
биота российских вод японского моря - Materials of Alexey Shipunov биота российских вод японского моря - Materials of Alexey Shipunov
The mysids inhabit marine, brackish, and fresh waters; they are distributed verticallyin depths from 0 to 8500 m. There are nekto-benthic (hyperbenthic), pelagic, andepibenthic forms among the mysids; several species are the commensals of sponges.Nekto-benthic and epibenthic species occur over and on various types of substrates.At present about 1000 species belonging to 152 genera of mysids are known.They inhabit all the oceans, most abundant in tropical and subtropical waters, thenumber of species decreasing towards polar regions. The mysids are omnivorous;most species are filter-feeders or carnivores.Mysidacea of the Sea of Japan belong to five biogeographical groups, namely:amphiboreal-arctic (2 species), Pacific subtropical-boreal (2 species), West Pacificsubtropical-boreal (2 species), Pacific widespread boreal (4 species), and West Pacificwidespread boreal (7 species). It means that the widespread boreal species predominatein the fauna of this region (11 species). The subtropical-boreal species (4 in number)should not be considered to occur in warm waters, as they are found in the northernareas of the Bering Sea, and most of them also in the Chukchi Sea. Two amphiboreal-arcticspecies must be really cold-water ones, and are therefore in the Sea of Japanrecorded only from the Tatar Strait. The analysis of the sublittoral mysid fauna refersthe studied region to the Manchurian-Kamchatkan district of the Far Eastern biogeographicalsuperprovince, while the analysis of very poor meso-bathypelagic fauna refersit to the Sea of Japan district of the Japanese – Far Eastern province (Petryashov,2005).Mysids should be collected using horizontal plankton nets and epibenthicsledges. Mysids are rather numerous in vertical samples taken by large plankton nets;they may also be collected by benthopelagic samplers attached to the trawls, pelagicand bottom trawls, and scoop nets. They are rarely found among the material taken bydredgers. The mysids should be fixed in 75% - ethanol or in 4% - formaldehyde.The present keys are based on the Murano’s classification (Murano, 1999) withsome additions and modifications from Tchindonova (1981) and Nouvel et al. (1999):suborder Lophogastridafamily Gnathophausiidaefamily Lophogastridaefamily Eucopiidaesuborder Stygiomysinafamily Lepidomysidaefamily Stygiomysidaesuborder Petalophthalminafamily Petalophthalmidaesuborder Mysidafamily Boreomysidaefamily Mysidaesubfamily Thalassomysinaesubfamily Siriellinaesubfamily Rhopalophthalminaesubfamily Gastrosaccinaesubfamily Mysinaesubfamily Mysidellinae43
It should be noted that there is no yet consensus on the system of the order. Manyresearchers establish only two suborders within the order Mysidacea, viz. Lophogastridaand Mysida, including the other two suborders into the suborder Mysida. Otherauthors erect the suborder Lophogastrida as a separate order (Martin & Davis, 2001).Some biologists don’t accept the independence of the families Gnathophausiidae andBoreomysidae. There is no general agreement among authors as to the number of tribesin the subfamily Mysinae. Some workers separate only four tribes (Erythropini,Leptomysini, Mysini, and Heteromysini) and attribute the rest to the tribe Erythropiniand one genus to the tribe Leptomysini.Members of the suborder Mysida and the family Mysidae have been found in theRussian waters of the Sea of Japan.Systematic partSuborder Mysida Boas, 1883Branchiae on thoracopods absent. Basal part of endopod of uropod provided withstatocyst.I. Family MYSIDAE Dana, 1850Female marsupium consists of two, rarer three pairs of well-developed oostegites(in some genera rudimentary pairs of oostegites also present). (Species inhabiting theRussian waters of the Sea of Japan have one-segmented exopod of uropod; no rudimentarysuture; outer margin covered with numerous (more than 10) spines, but withoutsetae, or covered with numerous setae, but without spines).Only two subfamilies of six occur in the northern part of the Sea of Japan.KEY TO THE SUBFAMILIES OF THE FAMILY MYSIDAE1(2). Female marsupium consists of two pairs of oostegites and one pair of lateral (epimeral)lamellae of first abdominal segment (pl. II, fig. 6). Outer margin of exopodof uropod without setae, with 1, 2, or more spines (pl. II, fig. 3) ........................................................................................................... I. Gastrosaccinae (p. 44)2(1). Female marsupium consists of 2, rarer 3 pairs of oostegites, lateral (epimeral)lamellae on first abdominal segment absent (pl. IV, fig. 6; XIV, fig. 2). Outermargin of exopod of uropod without spines, with numerous setae (pl. III, fig. 6) .................................................................................................... II. Mysinae (p. 46)I. Subfamily Gastrosaccinae Norman, 1892Female marsupium consists of two pairs of oostegites and one pair of epimerallamellae of first abdominal segment. Exopod of uropod one-segmented, outer marginwith one, two, or more spines, without setae from distal spine to base of exopod.Only one genus (Archaeomysis) of eight ones constituting the subfamily Gastrosaccinaeis found in the Russian waters of the Sea of Japan.44
- Page 3 and 4: BIOTA OF THE RUSSIAN WATERS OF THE
- Page 5: УДК 595 (571.6)Биота рос
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- Page 26 and 27: ReferencesAn illustrated guide to m
- Page 28 and 29: Mordukhai-Boltovskoi, F.D. 1968. On
- Page 30 and 31: Plate I. Penilia avirostris (1-4 -
- Page 32 and 33: Plate III. Pleopis polyphemoides: 1
- Page 34 and 35: Plate V. Podon leuckarti: 1 - parth
- Page 36 and 37: Plate VII. Evadne nordmanni: 1 - pa
- Page 38 and 39: CLASS MALACOSTRACA Latreille, 1802O
- Page 40 and 41: way) to Greenland, the Spitsbergen,
- Page 42 and 43: Plate II. Nebalia bipes: 1 - distal
- Page 46 and 47: 1. Genus Archaeomysis Czerniavsky,
- Page 48 and 49: 1. Genus Holmesiella Ortmann, 1908T
- Page 50 and 51: Distribution. M. microphthalma is a
- Page 52 and 53: as all female pleopods, rudimentary
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- Page 57 and 58: 2. Neomysis awatschensis (Brandt, 1
- Page 59 and 60: 6. Genus Boreoacanthomysis Fukuoka
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- Page 63 and 64: exopod with one simple lateral seta
- Page 65 and 66: Mauchline, J. 1980. The biology of
- Page 67 and 68: Plate II. Archaeomysis grebnitzkii
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- Page 73 and 74: Plate VIII. Disacanthomysis dybowsk
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- Page 77 and 78: Plate XII. Neomysis mirabilis: 1 -
- Page 79 and 80: Plate XIV. Exacanthomysis stelleri:
- Page 81 and 82: Plate XVI. Paracanthomysis shikhota
- Page 83 and 84: (pl. III, figs. 2, 7-9), do not fee
- Page 85 and 86: 1. Thysanoessa inermis (Kroyer, 184
- Page 87 and 88: 35°45′N) of Honshu Island. In th
- Page 89 and 90: Hansen, H.J. 1911. The genera and s
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- Page 93 and 94: SUBPHYLUM CHELICERATA HEYMONS, 1901
The mysids inhabit marine, brackish, and fresh waters; they are distributed verticallyin depths from 0 to 8500 m. There are nekto-benthic (hyperbenthic), pelagic, andepibenthic forms among the mysids; several species are the commensals <strong>of</strong> sponges.Nekto-benthic and epibenthic species occur over and on various types <strong>of</strong> substrates.At present about 1000 species belonging to 152 genera <strong>of</strong> mysids are known.They inhabit all the oceans, most abundant in tropical and subtropical waters, thenumber <strong>of</strong> species decreasing towards polar regions. The mysids are omnivorous;most species are filter-feeders or carnivores.Mysidacea <strong>of</strong> the Sea <strong>of</strong> Japan belong to five biogeographical groups, namely:amphiboreal-arctic (2 species), Pacific subtropical-boreal (2 species), West Pacificsubtropical-boreal (2 species), Pacific widespread boreal (4 species), and West Pacificwidespread boreal (7 species). It means that the widespread boreal species predominatein the fauna <strong>of</strong> this region (11 species). The subtropical-boreal species (4 in number)should not be considered to occur in warm waters, as they are found in the northernareas <strong>of</strong> the Bering Sea, and most <strong>of</strong> them also in the Chukchi Sea. Two amphiboreal-arcticspecies must be really cold-water ones, and are therefore in the Sea <strong>of</strong> Japanrecorded only from the Tatar Strait. The analysis <strong>of</strong> the sublittoral mysid fauna refersthe studied region to the Manchurian-Kamchatkan district <strong>of</strong> the Far Eastern biogeographicalsuperprovince, while the analysis <strong>of</strong> very poor meso-bathypelagic fauna refersit to the Sea <strong>of</strong> Japan district <strong>of</strong> the Japanese – Far Eastern province (Petryashov,2005).Mysids should be collected using horizontal plankton nets and epibenthicsledges. Mysids are rather numerous in vertical samples taken by large plankton nets;they may also be collected by benthopelagic samplers attached to the trawls, pelagicand bottom trawls, and scoop nets. They are rarely found among the material taken bydredgers. The mysids should be fixed in 75% - ethanol or in 4% - formaldehyde.The present keys are based on the Murano’s classification (Murano, 1999) withsome additions and modifications from Tchindonova (1981) and Nouvel et al. (1999):suborder Lophogastridafamily Gnathophausiidaefamily Lophogastridaefamily Eucopiidaesuborder Stygiomysinafamily Lepidomysidaefamily Stygiomysidaesuborder Petalophthalminafamily Petalophthalmidaesuborder Mysidafamily Boreomysidaefamily Mysidaesubfamily Thalassomysinaesubfamily Siriellinaesubfamily Rhopalophthalminaesubfamily Gastrosaccinaesubfamily Mysinaesubfamily Mysidellinae43
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