Life history and habitat associations of haddock (Melanogrammus aeglefinus) in Newfoundland waters

Rogers, Robert (2015) Life history and habitat associations of haddock (Melanogrammus aeglefinus) in Newfoundland waters. Masters thesis, Memorial University of Newfoundland.

[img] [English] PDF - Accepted Version
Available under License - The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission.

Download (1735Kb)

Abstract

Many fish stocks are currently facing collapse or overexploitation as well as warming environments. During the 1950s and 1960s, haddock supported a substantial fishery in southern Newfoundland waters, specifically Northwest Atlantic Fisheries Organization (NAFO) Divisions 3LNO and Subdivision 3Ps, but abundance has been comparatively low over the last several decades and there has been no significant fishery in either 3LNO or 3Ps since the late-1950s. The decline in the fishery for haddock coincided with a decline in scientific research on haddock with the last significant research on haddock in Newfoundland waters conducted in the 1950s-1960s. Other haddock stocks have shown major life history changes since the 1980s, including decreased size-at-age and age/length at maturity. In contrast to this, Newfoundland haddock have not shown a significant change in growth or maturity through time. Based on analysis of habitat associations, haddock abundance is expected to increase with recent warming trends as the available optimum habitat for haddock will increase.

Item Type: Thesis (Masters)
URI: http://research.library.mun.ca/id/eprint/11949
Item ID: 11949
Additional Information: Includes bibliographical references (pages 71-83).
Keywords: Haddock, Life history, Habitat associations, Newfoundland, Melanogrammus aeglefinus
Department(s): Science, Faculty of > Biology
Date: January 2015
Date Type: Submission
Geographic Location: Newfoundland and Labrador
Library of Congress Subject Heading: Haddock fisheries--Newfoundland and Labrador; Haddock--Life cycles--Newfoundland and Labrador; Haddock--Habitat--Newfoundland and Labrador; Fish stock assessment--Newfoundland and Labrador

Actions (login required)

View Item View Item

Downloads

Downloads per month over the past year

View more statistics