Species composition,distribution, and specific features of feeding of Fish Larvae,and fry in the Sea of Okhotsk from October to December 2007 |
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| Authors: | E N Andreeva M A Shebanova |
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| Institution: | (1) Department of Biological Sciences, Texas Tech University, P.O. Box 43131, Lubbock, TX 79409, USA;(2) Marine Mammal Research Unit, Fisheries Centre, University of British Columbia, Room 18, Hut B-36248 Biological Sciences Road, Vancouver, BC, V6T 1Z4, Canada;(3) Laboratory for Isotope and Trace Element Chemistry, Old Dominion University, Norfolk, VA 23529, USA;(4) Present address: Department of Earth and Planetary Sciences, Harvard University, 20 Oxford Street, Cambridge, MA 02138, USA;(5) Present address: School of Natural Sciences, University of Western Sydney, Locked Bag 1797, Penrith South DC, NSW, 1797, Australia; |
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| Abstract: | Ichthyoplankton of the Sea of Okhotsk from October to December 2007 comprised larvae and fry of eight fish species belonging
to five families. The larvae of lord Hemilepidotus gilberti, white-spotted greenling Hexagrammos stelleri, and Atka mackerel Pleurogrammus monopterygius were the most widespread and numerous in the study period. Fish larvae from October to December 2007 were seined over the
vast water area of the Sea of Okhotsk, maximum catches were made in waters of western Kamchatka. The food spectrum of larvae
of five fish species (H. gilberti, Hexagrammos octogrammus, H. stelleri, P. monopterygius, and Bathymaster signatus) included approximately 20 plankters. Irrespective of species belonging, copepods Pseudocalanus minutus and Oithona similis, eggs and nauplii of copepods, as well as juveniles of pteropods were common food items for all fish. Larvae of all considered
fish species in the Sea of Okhotsk fed mainly during the light hours of the day. |
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