MEPS 450:285-287 (2012)  -  DOI: https://doi.org/10.3354/meps09652

REPLY COMMENT
Population structure of the squid Doryteuthis (Loligo) pealeii on the eastern coast of the USA: Reply to Gerlach et al. (2012)

Paul W. Shaw1,3,*, Lisa Hendrickson2, Niall J. McKeown1, Terry Stonier3, Marie-Jose Naud4, Warwick H. H. Sauer3

1Institute of Biological, Environmental and Rural Sciences (IBERS), Aberystwyth University, Aberystwyth SY23 3FG, UK
2US National Marine Fisheries Service, Northeast Fisheries Science Center, 166 Water St., Woods Hole, Massachusetts 02543, USA
3Department of Ichthyology & Fisheries Science, Rhodes University, Grahamstown 6140, South Africa
4Marine Biological Association of the UK, Citadel Hill, Plymouth, Devon PL1 2PB, UK

ABSTRACT: Gerlach et al. (2012; Mar Ecol Prog Ser 450:281−283) argue that temporal instability in patterns of cryptic genetic differentiation in Doryteuthis pealeii, resulting from sampling of family groups, is the most likely explanation for differences in patterns of genetic differentiation presented in Buresch et al. (2006) and Shaw et al. (2010). We agree that temporal genetic patchiness might be an explanation, but disagree that cohesive and genetically differentiated family groups are the cause. We conclude that currently there is not enough evidence for temporally stable population differentiation, explained by a feasible biological/physical mechanism, to support management of the species as anything other than single genetic stocks across large geographical regions of the NW Atlantic. Further study of this species is warranted to understand the factors generating temporal genetic changes.


KEY WORDS: Squid · Population genetics · Fisheries management


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Cite this article as: Shaw PW, Hendrickson L, McKeown NJ, Stonier T, Naud MJ, Sauer WHH (2012) Population structure of the squid Doryteuthis (Loligo) pealeii on the eastern coast of the USA: Reply to Gerlach et al. (2012). Mar Ecol Prog Ser 450:285-287. https://doi.org/10.3354/meps09652

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