کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6383272 | 1626145 | 2013 | 71 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Marine mammal acoustic detections in the northeastern Chukchi Sea, September 2007-July 2011
ترجمه فارسی عنوان
تشخیص صوتی دریایی در دریای شمال چوکچی، سپتامبر 2007 تا ژوئیه 2011
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کلمات کلیدی
قطب شمال، پستاندار دریایی، آواز خواندن، تشخیص صوتی،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی
چکیده انگلیسی
Bowhead (Balaena mysticetus) and beluga (Delphinapterus leucas) whale calls were detected primarily from April through June and from September to December during their migrations between the Bering and Beaufort seas. Summer detections were rare and usually concentrated off Wainwright and Barrow, Alaska. Gray (Eschrichtius robustus) whale calls were detected between July and October, their occurrence decreasing with increasing distance from shore. Fin (Balaenoptera physalus), killer (Orcinus orca), minke (Balaenoptera acutorostrata), and humpback (Megaptera novaeangliae) whales were detected sporadically in summer and early fall. Walrus (Odobenus rosmarus) was the most commonly detected species between June and October, primarily occupying the southern edge of Hanna Shoal and haul-outs near coastal recording stations off Wainwright and Point Lay. Ringed (Pusa hispida) and bearded (Erignathus barbatus) seals occur year-round in the Chukchi Sea. Ringed seal acoustic detections occurred throughout the year but detection numbers were low, likely due to low vocalization rates. Bearded seal acoustic detections peaked in April and May during their breeding season, with much lower detection numbers in July and August, likely as a result of reduced calling rates after breeding season. Ribbon seals (Histriophoca fasciata) were only detected in the fall as they migrated south through the study area toward the Bering Sea. These results suggest a regular presence of marine mammals in the Chukchi Sea year-round, with species-dependent seasonal and spatial density variations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Continental Shelf Research - Volume 67, 15 September 2013, Pages 127-146
Journal: Continental Shelf Research - Volume 67, 15 September 2013, Pages 127-146
نویسندگان
David E. Hannay, Julien Delarue, Xavier Mouy, Bruce S. Martin, Del Leary, Julie N. Oswald, Jonathan Vallarta,