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An Examination of Predator Habitat U...

Charles, Colin.

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An Examination of Predator Habitat Usage: Movement Analysis in a Marine Fishery and Freshwater Fish.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	An Examination of Predator Habitat Usage: Movement Analysis in a Marine Fishery and Freshwater Fish./
Author:	Charles, Colin.
Description:	0 p.
Notes:	Source: Masters Abstracts International, Volume: 52-05.
Contained By:	Masters Abstracts International52-05(E).
Subject:	Agriculture, Fisheries and Aquaculture. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MS25718
ISBN:	9780499257185

An Examination of Predator Habitat Usage: Movement Analysis in a Marine Fishery and Freshwater Fish.
Charles, Colin.

An Examination of Predator Habitat Usage: Movement Analysis in a Marine Fishery and Freshwater Fish. - 0 p.

Source: Masters Abstracts International, Volume: 52-05.

Thesis (M.Sc.)--University of Manitoba (Canada), 2013.

This thesis investigates the influence of predator movements upon habitat selection and foraging success. It deals with two very distinct datasets one from a marine system, the snow crab (Chionoecetes opilio) fishery, and the second from a freshwater system, an experimental rainbow trout (Oncorhynchus mykiss) aquaculture operation. Deriving a standardized measure of catch from logbook data is important because catch per unit effort (CPUE) is used in fisheries analysis to estimate abundance, but it some cases CPUE is a biased estimate. For the snow crab fishery, a relative abundance measure was developed using fisher movements and logbook data that reflected commercially available biomass and produced an improved relative abundance estimate. Results from the aquaculture dataset indicate that escaped farmed rainbow trout continue to use the cage site when waste feed is available, while native lake trout do not interact with the cage. Once access to waste feed is removed, both lake trout and escaped rainbow trout do not use the cage site. This thesis uses methods to identify patterns and behaviours using movement tracks to increase our understanding of predator habitat usage.

ISBN: 9780499257185Subjects--Topical Terms:

1020913
Agriculture, Fisheries and Aquaculture.

An Examination of Predator Habitat Usage: Movement Analysis in a Marine Fishery and Freshwater Fish.
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020 $a 9780499257185
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100 1 $a Charles, Colin. $3 2101524
245 1 3 $a An Examination of Predator Habitat Usage: Movement Analysis in a Marine Fishery and Freshwater Fish.
300 $a 0 p.
500 $a Source: Masters Abstracts International, Volume: 52-05.
502 $a Thesis (M.Sc.)--University of Manitoba (Canada), 2013.
520 $a This thesis investigates the influence of predator movements upon habitat selection and foraging success. It deals with two very distinct datasets one from a marine system, the snow crab (Chionoecetes opilio) fishery, and the second from a freshwater system, an experimental rainbow trout (Oncorhynchus mykiss) aquaculture operation. Deriving a standardized measure of catch from logbook data is important because catch per unit effort (CPUE) is used in fisheries analysis to estimate abundance, but it some cases CPUE is a biased estimate. For the snow crab fishery, a relative abundance measure was developed using fisher movements and logbook data that reflected commercially available biomass and produced an improved relative abundance estimate. Results from the aquaculture dataset indicate that escaped farmed rainbow trout continue to use the cage site when waste feed is available, while native lake trout do not interact with the cage. Once access to waste feed is removed, both lake trout and escaped rainbow trout do not use the cage site. This thesis uses methods to identify patterns and behaviours using movement tracks to increase our understanding of predator habitat usage.
590 $a School code: 0303.
650 4 $a Agriculture, Fisheries and Aquaculture. $3 1020913
650 4 $a Biology, Oceanography. $3 783691
690 $a 0792
690 $a 0416
710 2 $a University of Manitoba (Canada). $b Biological Sciences. $3 2101525
773 0 $t Masters Abstracts International $g 52-05(E).
790 $a 0303
791 $a M.Sc.
792 $a 2013
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MS25718