The relationship between American lobster catch, entry rate into traps and density

Watson, Winsor H.; Jury, Steven H.

doi:10.1080/17451000.2012.727430

Cited by 26 publications

(42 citation statements)

References 28 publications

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“…In a study conducted by Barber and Cobb (2009), Dungeness crab (Cancer magister) territoriality and aggression discouraged other crabs from entering the pot. Similar behaviors have been observed in other studies, where large lobsters tended to prevent smaller lobsters from trying to enter traps, thus limiting the number of entries (Jury et al, 2001;Watson and Jury, 2013). Saturation leading to decreased entry rates has also been observed in fish pots used to catch Atlantic cod (Gadus morhua; Ovegård et al, 2011), sablefish (Anoplopoma fimbria; High and Beardsley, 1970) and squirrelfish (Holocentrus adscensionis; Stoner, 2004).…”

Section: Introductionsupporting

confidence: 58%

“…Cues that may cause lobsters to migrate include changes in salinity (Jury et al, 1994a(Jury et al, ,b, 1995Watson et al, 1999), water temperatures (Cooper and Uzmann, 1971;Pezzack and Duggan, 1986;Jury et al, 1995;Estrella and Morrissey, 1997;Watson et al, 1999;Watson and Jury, 2013;Jury and Watson, 2013), and wave surge and storms (Goldstein, 2012;Goldstein and Watson, 2015). At our study site along the coast of NH, USA, probably the strongest predictor of lobster distribution and density is water temperature.…”

Section: Lobster Movement and Densitymentioning

confidence: 93%

“…The study area was 90,000 m 2 , with a primarily sand bottom, which made it ideal for visualizing lobsters during SCUBA surveys, as well as providing a relatively homogenous landscape for conducting the trap trials. This area is also typically devoid of active lobstermen, and it was the site for previous investigations using standard traps (Jury et al, 2001;Watson and Jury, 2013).…”

Section: Study Sitementioning

confidence: 99%

“…9; r 2 = 0.096; P = 0.065, one-way ANOVA). This relationship was also examined by categorizing lobsters into three size classes, as done by Watson and Jury (2013;<65 mm, 65-83 mm, and >83 mm) and then comparing the mean CPUE for each size class, at each soak time (Fig. 10).…”

Section: Size Frequency Composition Of Catch Across Soak Timesmentioning

confidence: 99%

See 3 more Smart Citations

A comparison of American lobster size structure and abundance using standard and ventless traps

et al. 2015

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Section: Introductionsupporting

confidence: 58%

Section: Lobster Movement and Densitymentioning

confidence: 93%

Section: Study Sitementioning

confidence: 99%

Section: Size Frequency Composition Of Catch Across Soak Timesmentioning

confidence: 99%

See 2 more Smart Citations

A comparison of American lobster size structure and abundance using standard and ventless traps

et al. 2015

Self Cite

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“…4) leading to an encompassing study of benthic recruitment (Wahle et al 2013;contr. 5) and concluding with a behavioural study which has consequences for sampling and population assessment (Watson & Jury 2013;contr. 6).…”

Section: Editorial Lobster Research Integrated: From Biology To Managmentioning

confidence: 99%

Lobster research integrated: From biology to management

Buchholz¹,

Linnane²,

Meeren³

et al. 2013

Marine Biology Research

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Estimating gear selectivity and population composition of common whelks Buccinum undatum from tagging experiments and comparative gear trials

Colvin,

Phillips,

Hoenig

et al. 2024

N American J Fish Manag

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ObjectiveThe common whelk Buccinum undatum is of great commercial and ecological importance, but little information is known regarding the gear selectivity of the fishery. Understanding gear selectivity is key for the long‐term sustainability of a stock and has applications in stock assessments and fishery management.MethodsWe investigated the effect of gear (pots) on the selectivity of catch within the common whelk commercial fishery through a mark–recapture study and comparative gear trials across Wales. The size composition of the population in the water was estimated by dividing the numbers at size brought onboard by the selectivity of the pots. The selectivity of experimental pots (commercial pots that were modified to catch a wider size range) was estimated by comparing the size composition of whelks caught in the experimental gear to the estimated size composition of the population.ResultPeak selectivity of commercial pots occurred around the current minimum landing size (65 mm total shell length) for common whelks, with selectivity sloping off gradually for larger individuals and rapidly for undersized individuals. Across regions, less than 30% of the catch from baited lay‐down pots was discarded. Experimental pots were found to have a more variable but generally dome‐shaped selectivity curve similar to that of the commercial pots.ConclusionThe fishery appears to be well designed, with gear successfully targeting the legal‐sized catch, which is promising for the conservation of the stock if discards have a high survival rate. Experimental gear is ideal for stock assessment purposes, and methods developed to estimate the selectivity of the experimental pots reduce the need for further intensive mark–recapture studies as fishing gear evolves over time.

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The relationship between American lobster catch, entry rate into traps and density

Cited by 26 publications

References 28 publications

A comparison of American lobster size structure and abundance using standard and ventless traps

A comparison of American lobster size structure and abundance using standard and ventless traps

Lobster research integrated: From biology to management

Estimating gear selectivity and population composition of common whelks Buccinum undatum from tagging experiments and comparative gear trials

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