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Fine-scale movement patterns and hab...

Cartamil, Daniel Patrick.

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Fine-scale movement patterns and habitat preferences of ocean sunfish (Mola mola) off the coast of southern California.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Fine-scale movement patterns and habitat preferences of ocean sunfish (Mola mola) off the coast of southern California./
作者:	Cartamil, Daniel Patrick.
面頁冊數:	51 p.
附註:	Adviser: Christopher Lowe.
Contained By:	Masters Abstracts International42-02.
標題:	Agriculture, Fisheries and Aquaculture. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1415978
ISBN:	9780496207633

Fine-scale movement patterns and habitat preferences of ocean sunfish (Mola mola) off the coast of southern California.
Cartamil, Daniel Patrick.

Fine-scale movement patterns and habitat preferences of ocean sunfish (Mola mola) off the coast of southern California. - 51 p.

Adviser: Christopher Lowe.

Thesis (M.S.)--California State University, Long Beach, 2003.

Ocean sunfish (Mola mola) are a common inhabitant of southern California waters and comprise the largest bycatch component (29% of total catch) of the California drift gillnet fishery for swordfish. Reducing bycatch of ocean sunfish requires an understanding of their movement patterns and habitat preferences, both of which are poorly known. I used temperature and depth-sensing acoustic transmitters to quantify the fine-scale movement patterns and habitat preferences of ocean sunfish near Santa Catalina Island, California. Eight ocean sunfish were tracked continuously over 24--72 h periods, during which oceanographic data were collected every 2 h. Geographical position and depth of tracked fish were analyzed in relation to oceanographic data and time of day. Ocean sunfish traveled a mean distance of 26.5 +/- 5.2 km (mean +/- SD) per day. Horizontal movements were characterized by a significant decrease in rate of movement during the 6-h period following sunset (0.78 +/- 0.26 km h-1) as opposed to daytime periods (1.26 +/- 1.16 km h-1). (Abstract shortened by UMI.)

ISBN: 9780496207633Subjects--Topical Terms:

1020913
Agriculture, Fisheries and Aquaculture.

Fine-scale movement patterns and habitat preferences of ocean sunfish (Mola mola) off the coast of southern California.
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