کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6385234 | 1626786 | 2016 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Modeling the time-varying density distribution of highly migratory species: Atlantic blue marlin as an example
ترجمه فارسی عنوان
مدل سازی توزیع چگالی متغیر زمان گونه های بسیار مهاجر: مارلین آبی به عنوان مثال
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
زیستگاه، مدیریت ماهیگیری، توزیع فضایی، مارلین آبی، آب و هوا،
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم آبزیان
چکیده انگلیسی
Blue marlin (Makaira nigricans) are among many species of tunas and billfishes that require pelagic longline catch-effort statistics for stock assessments. Major controversies about stock status have arisen because of issues concerning habitat influences on catch rates, but models to describe how the species is distributed throughout its entire habitat are lacking. A habitat suitability model (HSM) of the size and spatial distribution of blue marlin habitat by month using habitat weighted-volume (H) is presented. It is estimated from oceanographic data partitioned by 1° of latitude and 1° of longitude in 50 layers from the surface to a depth of 1200 m using dissolved oxygen tolerances and temperature preferences compiled from electronic tagging. The physical habitat is an amorphous 3-dimensional space whose boundaries are constantly changing with seasonal and longer-term variations in climate. Fluctuations in habitat volume likely contribute to fluctuations in CPUE that are independent of population abundance and add unrecognized uncertainty to abundance indices used to estimate population benchmarks. The results highlight the need to expand stock assessments to include seasonal and annual climatology. The HSM-based habitat weighted volume model offers a way to validate analytical methods for using longline CPUE to monitor population health.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fisheries Research - Volume 183, November 2016, Pages 469-481
Journal: Fisheries Research - Volume 183, November 2016, Pages 469-481
نویسندگان
C. Phillip Goodyear,