Species composition and distributional pattern of ichthyoplankton of the Southern Pacific Ocean |
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Authors: | A G Arkhipov T A Simonova |
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Institution: | 1. Atlantic Scientific Research Institute of Fisheries and Oceanography, AtlantNIRO, Kaliningrad, Russia
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Abstract: | Distributional pattern and qualitative composition of ichthyoplankton in waters of the Southern Pacific in September 2002?CJanuary 2003 and in August?CNovember 2009 are analyzed. We noted approximately 70 species of fish pelagic eggs and larvae of fishes belonging to 34 families in this region. Change in distribution of the basic object of commercial fishery of this region, i.e., Peruvian-Chilean jack mackerel Trachurus murphyi, in early ontogenesis are considered in detail. The obtained data on the species composition, distribution, and abundance of ichthyoplankton in this region are compared with the results of investigations in the past years. The spawning biomass of jack mackerel is also estimated in the work by the amount of the eggs spawned by females in the places of their greatest concentrations. |
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