Turbidity triggers larval release by the intertidal barnacle Semibalanus balanoides
MetadataShow full item record
Gravid adults of the common intertidal barnacle Semibalanus balanoides (L.) brood fully developed larvae until individuals perceive some cue from the environment that triggers synchronous larval release. The prevailing hypothesis has been that phytoplankton blooms trigger release because they provide a food source for nauplius larvae. Through observations and field experiments, we tested the hypothesis that turbidity from any source, not just phytoplankton blooms, can trigger release. We documented five larval release events at three sites in the northeastern United States. Two events coincided with chlorophyll increases, and all five coincided with turbidity increases. In experiments, the larval release response was equivalent when adults were exposed to diatoms or inert synthetic beads, and it was significantly higher than under exposure to filtered seawater. We also tested the hypothesis that turbidity can decrease the risk of cannibalism for newly-released nauplii. Under experimentally manipulated conditions, adults consumed significantly fewer nauplii in a high-turbidity environment. We suggest that reproduction in this species may have evolved to coincide roughly with the local onset of winter/spring phytoplankton blooms, but the timing of larval release may have been fine-tuned further by cannibalism and predation pressures. The potential for turbid conditions to serve as a refuge for planktonic larvae of other marine organisms merits further investigation.
Author Posting. © The Author(s), 2012. This is the author's version of the work. It is posted here by permission of Inter-Research for personal use, not for redistribution. The definitive version was published in Marien Ecology Progress Series 476 (2013): 141-151, doi:10.3354/meps10186.
Suggested CitationPreprint: Gyory, Joanna, Pineda, Jesus, Solow, Andrew R., "Turbidity triggers larval release by the intertidal barnacle Semibalanus balanoides", 2012-11-12, https://doi.org/10.3354/meps10186, https://hdl.handle.net/1912/5837
Showing items related by title, author, creator and subject.
The role of season and salinity in influencing barnacle distributions in two adjacent coastal mangrove lagoons Starczak, Victoria R.; Perez-Brunius, Paula; Levine, Hazel E.; Gyory, Joanna; Pineda, Jesus (University of Miami - Rosenstiel School of Marine and Atmospheric Science, 2011-07-01)Barnacles are often abundant on roots and branches of mangrove trees in tidal channels and coastal lagoons of the Pacific coast of Panama. Yet, in some coastal lagoons, barnacles are absent. We investigated pre- and ...
Stage-specific distribution of barnacle larvae in nearshore waters : potential for limited dispersal and high mortality rates Tapia, Fabian J.; Pineda, Jesus (Inter-Research, 2007-07-24)The stage-specific spatial distribution and mortality of Balanus glandula and Chthamalus spp. larvae were assessed with a series of daily vertical plankton tows collected from inner-shelf waters in La Jolla, Southern ...
Timing of successful settlement : demonstration of a recruitment window in the barnacle Semibalanus balanoides Pineda, Jesus; Starczak, Victoria R.; Stueckle, Todd A. (Inter-Research, 2006-08-29)Recruitment is a key factor in benthic population dynamics, and spatial and temporal processes that affect settlement may determine recruitment; however, temporal processes are not well understood. We tested whether the ...