کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4550124 1627507 2010 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Early life ecology of Alaska plaice (Pleuronectes quadrituberculatus) in the eastern Bering Sea: Seasonality, distribution, and dispersal
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات اقیانوس شناسی
پیش نمایش صفحه اول مقاله
Early life ecology of Alaska plaice (Pleuronectes quadrituberculatus) in the eastern Bering Sea: Seasonality, distribution, and dispersal
چکیده انگلیسی

We examined the patterns of abundance and distribution of Alaska plaice, Pleuronectes quadrituberculatus, eggs, larvae and pelagic juveniles over the southeastern Bering Sea shelf to better understand factors controlling transport and recruitment of flatfish in the Bering Sea. Ichthyoplankton data were derived from plankton surveys conducted in 1997, 1999, 2002, 2003, and 2005. Temperature, salinity, depth, and abundance of microzooplankton were measured concurrently. Eggs and larvae were primarily collected from depths < 200 m, with the majority occurring over bottom depths ranging 50–100 m. Eggs were present throughout the water column, though densities of preflexion stage larvae were concentrated at depths 10–20 m. There was no evidence of vertical migration for pre-flexion stages. Spawning in Alaska plaice occurs primarily east of Port Moller in April and May, and eggs and larvae appear to drift to the north and northeast, an observation based on satellite-tracked drifter information, model output, and collections of older, later-stage postlarvae. Connectivity between spawning areas and nursery habitats is likely influenced by wind forcing, so climate-mediated changes to dispersal trajectory or timing is expected to have significant impacts on recruitment in this species, though entrainment in consistent, directional currents may modify these effects.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Sea Research - Volume 64, Issues 1–2, July–August 2010, Pages 3–14
نویسندگان
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