کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6383267 | 1626145 | 2013 | 19 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Northeastern Chukchi Sea demersal fishes and associated environmental characteristics, 2009-2010
ترجمه فارسی عنوان
ماهی های دریایی دریای شمال چوکچی و ویژگی های زیست محیطی آن، 2009-2010
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
آلاسکا، ماهی ماهی جمعی، غنای گونه، قطب شمال قطر، قطب شمال قطب شمال قطب شمال، بیرینگ فلزی،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی
چکیده انگلیسی
Three closely-spaced study areas in the northeastern Chukchi Sea off of Alaska provided a opportunity to examine demersal fish communities over a small spatial scale as part of a multidisciplinary program. During 2009 and 2010, fishes in the three study areas (Klondike, Burger, and Statoil) were sampled at 37 stations with a plumb staff beam trawl and a 3Â m beam trawl; 70% of stations were sampled during all three cruises. Fish catches were dominated by small fishes (<150Â mm TL), which cannot be wholly attributed to the small mesh size of the net. Output from generalized linear modeling of the data suggested that overall fish density, species richness, and density of Arctic staghorn sculpin (Gymnocanthus tricuspis) and Bering flounder (Hippoglossoides robustus) were higher in the more southerly Klondike study area than in the more northerly Burger and Statoil study areas. Arctic cod (Boreogadus saida) was abundant throughout the study region. Richness and density could be explained by the environmental variables that defined the overall study area. The Klondike study area was warmer and erosional in nature with higher proportions of gravel sediment. Other study areas were colder and more depositional in nature with muddier sediment and were characterized by high densities of megafaunal invertebrates such as brittle stars. There appeared to be a lack of ecological homogeneity across these three closely-spaced study areas of the Chukchi Sea.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Continental Shelf Research - Volume 67, 15 September 2013, Pages 77-95
Journal: Continental Shelf Research - Volume 67, 15 September 2013, Pages 77-95
نویسندگان
Brenda L. Norcross, Scott W. Raborn, Brenda A. Holladay, Benny J. Gallaway, Stephen T. Crawford, Justin T. Priest, Lorena E. Edenfield, Robert Meyer,