2012
DOI: 10.3856/vol40-issue2-fulltext-9
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The effects of subsampling and between haul variation on the size selectivity estimation of Chilean hake (Merluccius gayi gayi)

Abstract: ABSTRACT. Using the data collected in a size selectivity experiment on Chilean hake (Merluccius gayi gayi) carried out in 2000, the selectivity parameters for four codend mesh sizes (100, 110, 130, and 140 mm of mesh size opening) were estimated and modelled by the SELECT model. These analyses included considerations of the sampling proportions of the catch in the codend and cover. Furthermore, the analyses took into account between-haul variation. The l 50 values were 30.8, 29.9, 30.0, and 41.2 cm of total le… Show more

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Cited by 3 publications
(2 citation statements)
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“…), an increase of between 3.3 and 4.7 cm for cod (in diamond mesh codends) (Madsen ) and an average increase of 2.1 cm for Chilean hake ( Merluccius gayi gayi ) (Queirolo et al . ). Similarly, an increase of 10 open meshes around the circumference will decrease the codend l 50 for haddock by an estimated 1.3 cm, comparable to a decrease of 1.1 cm for Baltic cod (Wienbeck et al .…”
Section: Discussionmentioning
confidence: 97%
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“…), an increase of between 3.3 and 4.7 cm for cod (in diamond mesh codends) (Madsen ) and an average increase of 2.1 cm for Chilean hake ( Merluccius gayi gayi ) (Queirolo et al . ). Similarly, an increase of 10 open meshes around the circumference will decrease the codend l 50 for haddock by an estimated 1.3 cm, comparable to a decrease of 1.1 cm for Baltic cod (Wienbeck et al .…”
Section: Discussionmentioning
confidence: 97%
“…; Madsen ; Queirolo et al . ), codend twine diameter (Lowry and Robertson ; Kynoch et al . ; Sala et al .…”
Section: Introductionmentioning
confidence: 99%