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A novel approach for estimation of the natural mortality of the common whelk, Buccinum undatum (L.) and role of hermit crabs in its shell turnover

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A novel approach for estimation of the natural mortality of the common whelk, Buccinum undatum (L.) and role of hermit crabs in its shell turnover. / Laptikhovsky, V.; Barrett, C.; Firmin, C. et al.
In: Fisheries Research, Vol. 183, 01.11.2016, p. 146-154.

Research output: Contribution to journal › Article › peer-review

HarvardHarvard

Laptikhovsky, V, Barrett, C, Firmin, C, Hollyman, P, Lawler, A, Masefield, R, McIntyre, R, Palmer, D, Soeffker, M & Parker-Humphreys, M 2016, 'A novel approach for estimation of the natural mortality of the common whelk, Buccinum undatum (L.) and role of hermit crabs in its shell turnover', Fisheries Research, vol. 183, pp. 146-154. https://doi.org/10.1016/j.fishres.2016.05.029

APA

Laptikhovsky, V., Barrett, C., Firmin, C., Hollyman, P., Lawler, A., Masefield, R., McIntyre, R., Palmer, D., Soeffker, M., & Parker-Humphreys, M. (2016). A novel approach for estimation of the natural mortality of the common whelk, Buccinum undatum (L.) and role of hermit crabs in its shell turnover. Fisheries Research, 183, 146-154. https://doi.org/10.1016/j.fishres.2016.05.029

CBE

Laptikhovsky V, Barrett C, Firmin C, Hollyman P, Lawler A, Masefield R, McIntyre R, Palmer D, Soeffker M, Parker-Humphreys M. 2016. A novel approach for estimation of the natural mortality of the common whelk, Buccinum undatum (L.) and role of hermit crabs in its shell turnover. Fisheries Research. 183:146-154. https://doi.org/10.1016/j.fishres.2016.05.029

MLA

Laptikhovsky, V. et al. "A novel approach for estimation of the natural mortality of the common whelk, Buccinum undatum (L.) and role of hermit crabs in its shell turnover". Fisheries Research. 2016, 183. 146-154. https://doi.org/10.1016/j.fishres.2016.05.029

VancouverVancouver

Laptikhovsky V, Barrett C, Firmin C, Hollyman P, Lawler A, Masefield R et al. A novel approach for estimation of the natural mortality of the common whelk, Buccinum undatum (L.) and role of hermit crabs in its shell turnover. Fisheries Research. 2016 Nov 1;183:146-154. Epub 2016 Jun 14. doi: 10.1016/j.fishres.2016.05.029

Author

Laptikhovsky, V. ; Barrett, C. ; Firmin, C. et al. / A novel approach for estimation of the natural mortality of the common whelk, Buccinum undatum (L.) and role of hermit crabs in its shell turnover. In: Fisheries Research. 2016 ; Vol. 183. pp. 146-154.

RIS

TY - JOUR

T1 - A novel approach for estimation of the natural mortality of the common whelk, Buccinum undatum (L.) and role of hermit crabs in its shell turnover

AU - Laptikhovsky, V.

AU - Barrett, C.

AU - Firmin, C.

AU - Hollyman, P.

AU - Lawler, A.

AU - Masefield, R.

AU - McIntyre, R.

AU - Palmer, D.

AU - Soeffker, M.

AU - Parker-Humphreys, M.

PY - 2016/11/1

Y1 - 2016/11/1

N2 - Analysis of simultaneously occurring live molluscs and empty shells of the whelk Buccinum undatum indicated similar abundance on the seabed making possible the estimation of recent natural mortality. Nearly all empty shells were occupied by hermit crabs Pagurus bernhardus and most of the remainder by Pagurus prideaux. P. bernhardus is highly selective for robust whelk shells, whereas anemone-protected P. prideaux use a range of smaller and thin-walled shells. Application of age size keys based on age reading of opercula surfaces permitted a tentative estimate of natural mortality of M = 1.34 on trap fishing grounds for brown crab in the southwest North Sea (whelks aged 4-7 years) and M = 0.85 and M = 0.63 for the fishing grounds on the Western Waters (whelks aged 4-7 years and 4-9 years respectively). Estimates of total mortality (Z), based on size-frequencies of live whelks, were Z = 1.35 (North Sea) and Z = 1.46 and 1.23 (Western Waters, aged 4-7 years and 4-9 years). Estimates of M for the North Sea might be biased by differences in trap selectivity between hermit crabs and live whelks. This is a novel approach that might be developed for whelk fisheries assessment and management, particularly using better age determination techniques.

AB - Analysis of simultaneously occurring live molluscs and empty shells of the whelk Buccinum undatum indicated similar abundance on the seabed making possible the estimation of recent natural mortality. Nearly all empty shells were occupied by hermit crabs Pagurus bernhardus and most of the remainder by Pagurus prideaux. P. bernhardus is highly selective for robust whelk shells, whereas anemone-protected P. prideaux use a range of smaller and thin-walled shells. Application of age size keys based on age reading of opercula surfaces permitted a tentative estimate of natural mortality of M = 1.34 on trap fishing grounds for brown crab in the southwest North Sea (whelks aged 4-7 years) and M = 0.85 and M = 0.63 for the fishing grounds on the Western Waters (whelks aged 4-7 years and 4-9 years respectively). Estimates of total mortality (Z), based on size-frequencies of live whelks, were Z = 1.35 (North Sea) and Z = 1.46 and 1.23 (Western Waters, aged 4-7 years and 4-9 years). Estimates of M for the North Sea might be biased by differences in trap selectivity between hermit crabs and live whelks. This is a novel approach that might be developed for whelk fisheries assessment and management, particularly using better age determination techniques.

KW - Age

KW - Buccinum

KW - Hermit crab

KW - Mortality

KW - Whelk

U2 - 10.1016/j.fishres.2016.05.029

DO - 10.1016/j.fishres.2016.05.029

M3 - Article

VL - 183

SP - 146

EP - 154

JO - Fisheries Research

JF - Fisheries Research

SN - 0165-7836

ER -