Evaluation of some factors affecting food conversion by age-0 arctic grayling reared in floating net-pens
Thesis (M.S.) University of Alaska Fairbanks, 1992 Two experiments were repeated three times to evaluate the effects of feeding frequency, loading density, and food particle size on food conversion of age-0 Arctic grayling Thymallus arcticus reared in floating net-pens. Growth in length or weight co...
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1992
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ftunivalaska:oai:scholarworks.alaska.edu:11122/14798 2024-01-07T09:40:52+01:00 Evaluation of some factors affecting food conversion by age-0 arctic grayling reared in floating net-pens McKinley, Timothy R. 1992-05 http://hdl.handle.net/11122/14798 en_US eng http://hdl.handle.net/11122/14798 Arctic grayling Thesis ms 1992 ftunivalaska 2023-12-14T19:04:35Z Thesis (M.S.) University of Alaska Fairbanks, 1992 Two experiments were repeated three times to evaluate the effects of feeding frequency, loading density, and food particle size on food conversion of age-0 Arctic grayling Thymallus arcticus reared in floating net-pens. Growth in length or weight could not be evaluated because of the short (11 - 12 days) feeding trials. When fed to satiation, the optimal interval between feedings was 3 hours. The highest initial loading density used (5.6 kg/m3) consistently produced the best food conversions (1.10 - 1.51 g food/g weight gain). Food particles several sizes larger than those generally recommended were used with less waste and without adverse effects. Optimal food size for 60 - 73 mm Arctic grayling was 1.3 - 1.5 mm (2.1 - 2.5% fork length). Division of Sport Fish, Alaska Department of Fish and Game Thesis Arctic grayling Arctic Thymallus arcticus Alaska University of Alaska: ScholarWorks@UA Arctic Fairbanks |
institution |
Open Polar |
collection |
University of Alaska: ScholarWorks@UA |
op_collection_id |
ftunivalaska |
language |
English |
topic |
Arctic grayling |
spellingShingle |
Arctic grayling McKinley, Timothy R. Evaluation of some factors affecting food conversion by age-0 arctic grayling reared in floating net-pens |
topic_facet |
Arctic grayling |
description |
Thesis (M.S.) University of Alaska Fairbanks, 1992 Two experiments were repeated three times to evaluate the effects of feeding frequency, loading density, and food particle size on food conversion of age-0 Arctic grayling Thymallus arcticus reared in floating net-pens. Growth in length or weight could not be evaluated because of the short (11 - 12 days) feeding trials. When fed to satiation, the optimal interval between feedings was 3 hours. The highest initial loading density used (5.6 kg/m3) consistently produced the best food conversions (1.10 - 1.51 g food/g weight gain). Food particles several sizes larger than those generally recommended were used with less waste and without adverse effects. Optimal food size for 60 - 73 mm Arctic grayling was 1.3 - 1.5 mm (2.1 - 2.5% fork length). Division of Sport Fish, Alaska Department of Fish and Game |
format |
Thesis |
author |
McKinley, Timothy R. |
author_facet |
McKinley, Timothy R. |
author_sort |
McKinley, Timothy R. |
title |
Evaluation of some factors affecting food conversion by age-0 arctic grayling reared in floating net-pens |
title_short |
Evaluation of some factors affecting food conversion by age-0 arctic grayling reared in floating net-pens |
title_full |
Evaluation of some factors affecting food conversion by age-0 arctic grayling reared in floating net-pens |
title_fullStr |
Evaluation of some factors affecting food conversion by age-0 arctic grayling reared in floating net-pens |
title_full_unstemmed |
Evaluation of some factors affecting food conversion by age-0 arctic grayling reared in floating net-pens |
title_sort |
evaluation of some factors affecting food conversion by age-0 arctic grayling reared in floating net-pens |
publishDate |
1992 |
url |
http://hdl.handle.net/11122/14798 |
geographic |
Arctic Fairbanks |
geographic_facet |
Arctic Fairbanks |
genre |
Arctic grayling Arctic Thymallus arcticus Alaska |
genre_facet |
Arctic grayling Arctic Thymallus arcticus Alaska |
op_relation |
http://hdl.handle.net/11122/14798 |
_version_ |
1787421647002664960 |