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Spatiotemporal coupling/decoupling of planktonic larvae and benthic settlement in decapods in the Scottish east coast
Pan, M.; Pierce, G.J.; Cunningham, C.O.; Hay, S.J. (2011). Spatiotemporal coupling/decoupling of planktonic larvae and benthic settlement in decapods in the Scottish east coast. Mar. Biol. (Berl.) 158(1): 31-46. hdl.handle.net/10.1007/s00227-010-1540-3
In: Marine Biology. Springer: Heidelberg; Berlin. ISSN 0025-3162, more
Peer reviewed article  

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Keyword
    Marine

Authors  Top 
  • Pan, M.
  • Pierce, G.J.
  • Cunningham, C.O.
  • Hay, S.J.

Abstract
    Settlement patterns and the relationship between meroplanktonic larvae and settlement in decapods were studied on the Scottish east coast. Artificial settlement substrates (ASS), deployed at two locations (sandy vs. rocky sea substrates), were employed to collect megalopae and newly settled juveniles. Abundance of meroplanktonic larvae was used as an indicator of larval supply. The results showed a clear seasonality in settlement rates, and in some cases, significant differences between sites were detected. Nevertheless, the interference of the ASS with the surrounding habitat limits the study of spatial variability in settlement rates. Significant cross-correlation was found between the abundance of megalopae and juveniles in the collectors and planktonic larval abundance a month earlier. For individual species, this relationship was observed only in Pisidia longicornis. Complexities caused by the great variety of pre- and post-settlement processes, alongside effects of secondary dispersals of early juveniles may have obscured the relationship between meroplanktonic larvae and juveniles in other species.

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