The effects of water temperature on the seasonal distribution and growth of walleye pollock, Theragra chalcogramma (Pallas), in the southeast Bering Sea
Thesis (M.S.) University of Alaska Fairbanks, 1983 The distribution and growth of walleye pollock, Theragva ohalaogvamna (Pallas), were studied in relation to bottom water temperatures, in an area between latitude 54°30'N and 57°30'N and longitude 160°W and 170°W, from the data collected f...
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ftunivalaska:oai:scholarworks.alaska.edu:11122/5112 2023-05-15T15:43:45+02:00 The effects of water temperature on the seasonal distribution and growth of walleye pollock, Theragra chalcogramma (Pallas), in the southeast Bering Sea Chen, Lih-Feng 1983-05 http://hdl.handle.net/11122/5112 en_US eng http://hdl.handle.net/11122/5112 Marine Science and Limnology Thesis ms 1983 ftunivalaska 2023-02-23T21:36:21Z Thesis (M.S.) University of Alaska Fairbanks, 1983 The distribution and growth of walleye pollock, Theragva ohalaogvamna (Pallas), were studied in relation to bottom water temperatures, in an area between latitude 54°30'N and 57°30'N and longitude 160°W and 170°W, from the data collected from 1976 to 1980. The annual variations of bottom temperature distribution, including mean temperature, are described. It is found that temperature boundaries regulate spawning aggregation areas and feeding distribution of adult pollock. Young pollock were distributed in a wider temperature range and revealed a clearer feeding migration pattern than the adults. The weight growth for walleye pollock aged 2 to 4 was determined. The growth rate varied with age, sex and year. The relative growth rate was related to the initial weight of the fish and the mean temperature. Additional seasonal variations in the length-weight relationship and condition factor were observed. Thesis Bering Sea Theragra chalcogramma Alaska University of Alaska: ScholarWorks@UA Bering Sea Fairbanks |
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Open Polar |
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University of Alaska: ScholarWorks@UA |
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ftunivalaska |
language |
English |
description |
Thesis (M.S.) University of Alaska Fairbanks, 1983 The distribution and growth of walleye pollock, Theragva ohalaogvamna (Pallas), were studied in relation to bottom water temperatures, in an area between latitude 54°30'N and 57°30'N and longitude 160°W and 170°W, from the data collected from 1976 to 1980. The annual variations of bottom temperature distribution, including mean temperature, are described. It is found that temperature boundaries regulate spawning aggregation areas and feeding distribution of adult pollock. Young pollock were distributed in a wider temperature range and revealed a clearer feeding migration pattern than the adults. The weight growth for walleye pollock aged 2 to 4 was determined. The growth rate varied with age, sex and year. The relative growth rate was related to the initial weight of the fish and the mean temperature. Additional seasonal variations in the length-weight relationship and condition factor were observed. |
format |
Thesis |
author |
Chen, Lih-Feng |
spellingShingle |
Chen, Lih-Feng The effects of water temperature on the seasonal distribution and growth of walleye pollock, Theragra chalcogramma (Pallas), in the southeast Bering Sea |
author_facet |
Chen, Lih-Feng |
author_sort |
Chen, Lih-Feng |
title |
The effects of water temperature on the seasonal distribution and growth of walleye pollock, Theragra chalcogramma (Pallas), in the southeast Bering Sea |
title_short |
The effects of water temperature on the seasonal distribution and growth of walleye pollock, Theragra chalcogramma (Pallas), in the southeast Bering Sea |
title_full |
The effects of water temperature on the seasonal distribution and growth of walleye pollock, Theragra chalcogramma (Pallas), in the southeast Bering Sea |
title_fullStr |
The effects of water temperature on the seasonal distribution and growth of walleye pollock, Theragra chalcogramma (Pallas), in the southeast Bering Sea |
title_full_unstemmed |
The effects of water temperature on the seasonal distribution and growth of walleye pollock, Theragra chalcogramma (Pallas), in the southeast Bering Sea |
title_sort |
effects of water temperature on the seasonal distribution and growth of walleye pollock, theragra chalcogramma (pallas), in the southeast bering sea |
publishDate |
1983 |
url |
http://hdl.handle.net/11122/5112 |
geographic |
Bering Sea Fairbanks |
geographic_facet |
Bering Sea Fairbanks |
genre |
Bering Sea Theragra chalcogramma Alaska |
genre_facet |
Bering Sea Theragra chalcogramma Alaska |
op_relation |
http://hdl.handle.net/11122/5112 Marine Science and Limnology |
_version_ |
1766377952006635520 |