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High-frequency observations of early-stage larval abundance: do storms trigger synchronous larval release in Semibalanus balanoides?
Gyory, J.; Pineda, J. (2011). High-frequency observations of early-stage larval abundance: do storms trigger synchronous larval release in Semibalanus balanoides? Mar. Biol. (Berl.) 158: 1581-1589. hdl.handle.net/10.1007/s00227-011-1671-1
In: Marine Biology. Springer: Heidelberg; Berlin. ISSN 0025-3162, more
Peer reviewed article  

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Keyword
    Marine

Authors  Top 
  • Gyory, J.
  • Pineda, J.

Abstract
    The acorn barnacle, Semibalanus balanoides, is thought to release larvae in response to phytoplankton blooms, but there is evidence that another, unidentified cue for release may exist. We conducted high-frequency sampling in Little Harbor, Massachusetts, USA, to determine whether early-stage larval abundance was related to several environmental variables, and to characterize vertical distributions of the larvae. Larval concentrations peaked at 2.52 and 1.02 individuals l-1 during two storms. Larvae were more abundant near the surface than near the bottom. We suggest the hypothesis that turbid conditions and upward-swimming behavior may protect newly-released larvae from predation and cannibalism. Future studies should test this hypothesis with barnacles and other invertebrates.

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