IMIS - Marine Research Groups | Compendium Coast and Sea

IMIS - Marine Research Groups

[ report an error in this record ]basket (0): add | show Print this page

Strengthening recruitment of exploited scallops Pecten maximus with ocean warming
Shephard, S.; Beukers-Stewart, B.; Hiddink, J.G.; Brand, A.R.; Kaiser, M.J. (2010). Strengthening recruitment of exploited scallops Pecten maximus with ocean warming. Mar. Biol. (Berl.) 157(1): 91-97. http://dx.doi.org/10.1007/s00227-009-1298-7
In: Marine Biology: International Journal on Life in Oceans and Coastal Waters. Springer: Heidelberg; Berlin. ISSN 0025-3162; e-ISSN 1432-1793, more
Peer reviewed article  

Available in  Authors 

Keyword
    Marine/Coastal

Authors  Top 
  • Shephard, S.
  • Beukers-Stewart, B.
  • Hiddink, J.G., more
  • Brand, A.R.
  • Kaiser, M.J., more

Abstract
    There is evidence that ocean warming has effects on the ecology, including recruitment dynamics, of marine organisms. In association with rising mean spring temperatures in the Irish Sea, a time-series of juvenile scallop Pecten maximus density around the Isle of Man showed a significant increasing trend since 1991. Favorable conditions (warmer water and correspondingly greater food availability) during gonad development can increase scallop gamete production. We examined the possibility that ocean warming has directly increased recruitment of exploited P. maximus around the Isle of Man by enhancing gonad development. From 1991–2007, there was a significant positive correlation between scallop recruitment and mean spring (the main period of gonad development) temperature in the year of larval settlement. Detrended (i.e., accounting for a time effect) recruitment data showed a marginally non-significant correlation to temperature. Gonadal somatic index of adult scallops and temperature were positively correlated. These relationships support the hypothesis that greater gamete production associated with ocean warming may be primarily responsible for observed increases in recruitment success and CPUE in a commercially important shellfish stock.

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors