Catch per unit effort standardization of the eastern Bering Sea walleye pollock (Theragra chalcogramma) fleet

Battaile, Brian C.; Quinn, Terrance J.

doi:10.1016/j.fishres.2004.08.029

Cited by 24 publications

(25 citation statements)

References 16 publications

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“…CPUE was assumed to be linearly proportional to abundance, as is common practice 14,[30][31][32] . These fishery-dependent data introduce several challenges to the construction of reliable abundance indices because factors such as changes in spatial and temporal effort allocation, vessel effects or fishing behaviour need to be accounted for 14,[30][31][32][33][34] . To standardize relative abundance indices for roman for the four areas, we applied GAMs with integrated smoothness estimation using penalized regression splines 35 for continuous predictor variables.…”

Section: Methodsmentioning

confidence: 99%

Marine protected area improves yield without disadvantaging fishers

et al. 2013

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Potential fishery benefits of Marine Protected Areas (MPAs) are widely acknowledged, yet seldom demonstrated, as fishery data series that straddle MPA establishment are seldom available. Here we postulate, based on a 15-year time series of nation-wide, spatially referenced catch and effort data, that the establishment of the Goukamma MPA (18 km alongshore; 40 km 2 ) benefited the adjacent fishery for roman (Chrysoblephus laticeps), a South African endemic seabream. Roman-directed catch-per-unit-effort (CPUE) in the vicinity of the new MPA immediately increased, contradicting trends across this species' distribution. The increase continued after 5 years, the time lag expected for larval export, effectively doubling the pre-MPA CPUE after 10 years. We find no indication that establishing the MPA caused a systematic drop in total catch or increased travel distances for the fleet. Our results provide rare empirical evidence of rapidly increasing catch rates after MPA implementation without measurable disadvantages for fishers.

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Section: Methodsmentioning

confidence: 99%

Marine protected area improves yield without disadvantaging fishers

et al. 2013

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“…For example, should each vessel be included as a categorical variable (e.g. Punt et al, 2000a;Battaile and Quinn, 2004) or should the characteristics that define a vessel be included as explanatory variables (e.g. Vignaux, 1996).…”

Section: Choosing Explanatory Variables To Considermentioning

confidence: 99%

Standardizing catch and effort data: a review of recent approaches

2004

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“…1998; van Oostenbrugge et al. 2002; Battaile and Quinn 2004; Bishop 2006). Standardization removes trends in variables describing vessel characteristics, fishing season and areas (Jones et al.…”

Section: Introductionmentioning

confidence: 99%

Quantifying fishing effort: a synthesis of current methods and their applications

2008

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The need to accurately quantify fishing effort has increased in recent years as fisheries have expanded around the world and many fish stocks and non‐target species are threatened with collapse. Quantification methods vary greatly among fisheries, and to date there has not been a comprehensive review of these methods. Here we review existing approaches to quantify fishing effort in small‐scale, recreational, industrial, and illegal, unreported and unregulated (IUU) fisheries. We present the strengths and limitations of existing methods, identifying the most robust methods and the critical knowledge gaps that must be addressed to improve our ability to quantify and map fishing effort. Although identifying the ‘best’ method ultimately depends on the intended application of the data, in general, quantification methods that are based on information on gear use and spatial distribution offer the best approaches to representing fishing effort on a broad scale. Integrating fisher’s knowledge and involving fishers in data collection and management decisions may be the most effective way to improve data quality and accessibility.

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Catch per unit effort standardization of the eastern Bering Sea walleye pollock (Theragra chalcogramma) fleet

Cited by 24 publications

References 16 publications

Marine protected area improves yield without disadvantaging fishers

Marine protected area improves yield without disadvantaging fishers

Standardizing catch and effort data: a review of recent approaches

Quantifying fishing effort: a synthesis of current methods and their applications

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