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Reproductive output of Macoma balthica populations in relation to winter-temperature and intertidal-height mediated changes of body mass
Honkoop, P.J.C.; van der Meer, J. (1997). Reproductive output of Macoma balthica populations in relation to winter-temperature and intertidal-height mediated changes of body mass. Mar. Ecol. Prog. Ser. 149(1-3): 155-162
In: Marine Ecology Progress Series. Inter-Research: Oldendorf/Luhe. ISSN 0171-8630, more
Peer reviewed article  

Also published as
  • Honkoop, P.J.C.; van der Meer, J. (1997). Reproductive output of Macoma balthica populations in relation to winter-temperature and intertidal-height mediated changes of body mass, in: Honkoop, P.J.C. (1998). Bivalve reproduction in the Wadden Sea: effects of winter conditions on reproductive effort and recruitment. pp. 83-100, more

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Keywords
    Body weight; Eggs; Fecundity; Sexual reproduction; Shells; Spawning seasons; Temperature effects; Macoma balthica (Linnaeus, 1758) [WoRMS]; ANE, Wadden Sea [Marine Regions]; Marine

Authors  Top 
  • Honkoop, P.J.C.
  • van der Meer, J., more

Abstract
    To study relationships between environmental conditions and reproductive output, numbers and sizes of eggs produced by the intertidal bivalve Macoma balthica were determined after the winters of 1995and 1996 at 3 stations at different intertidal levels in the Dutch Wadden Sea. At all field stations significantly more (1.5 to 7 times) eggs were produced after the cold winter of 1996 than after the mild winter of 1995when individual body masses were lower than in early 1996. At 2 stations the eggs were also significantly larger in 1996. In both years, eggs were larger at low than at high mud flats. Egg size was significantly positivelytakes place). Egg numbers, on the other hand, were only significantly positively correlated with the body mass just prior to spawning. Below a body mass of 5.6 mg ash-free dry mass per cm3 (cubic shelllength), M. balthica did not produce any eggs. Above this body mass, egg numbers increased by about 7700 per mg ash-free dry mass at a shell length of 15 mm.

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