Inter-Research > MEPS > v718 > p53-67  
Marine Ecology Progress Series

via Mailchimp

MEPS 718:53-67 (2023)  -  DOI:

Periodicity in Chthamalus fissus reproduction does not guarantee periodicity in settlement

Jane B. Weinstock1,2,*, Nathalie Reyns3, Marisa Swiderski3, Dana Flerchinger3, Jesús Pineda2

1MIT-WHOI Joint Program in Oceanography/Applied Ocean Science & Engineering, Cambridge 02139 and Woods Hole 02543, MA, USA
2Biology Department, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA
3Environmental and Ocean Sciences Department, University of San Diego, San Diego, CA 92110, USA
*Corresponding author:

ABSTRACT: The timing of life history events can have profound implications for populations and communities, especially those events that influence species dispersal and recruitment. In benthic invertebrates, the majority of dispersal occurs during the larval phase of life. Yet the extent to which timing of reproduction (the beginning of the larval phase) directly influences timing of settlement (the end of the larval phase) is unclear, because biological and hydrodynamic processes can act to decouple these 2 events, and because reproduction and settlement are seldom studied together. Here, we used long-term (2014-2019) daily and weekly data from Bird Rock, La Jolla, California, USA, to look for lunar and seasonal cycles in reproduction and settlement timing of the acorn barnacle Chthamalus fissus, and we incorporated measurements of nearshore currents to examine the implications of reproduction timing on alongshore larval transport distances. We found evidence of lunar and seasonal cycles in reproduction but only limited cyclicality in settlement, possibly due to plasticity in larval development coupled with variable larval transport and dispersal. Our results demonstrate the complex nature of relationships between reproduction, larval transport, and settlement, which must be disentangled before accurate predictions can be made regarding the impacts of climate change on the population dynamics of marine species.

KEY WORDS: Lunar reproduction · Barnacle · Larval dispersal · Phenology

Full text in pdf format
Supplementary material
Cite this article as: Weinstock JB, Reyns N, Swiderski M, Flerchinger D, Pineda J (2023) Periodicity in Chthamalus fissus reproduction does not guarantee periodicity in settlement. Mar Ecol Prog Ser 718:53-67.

Export citation
Share:    Facebook - - linkedIn

 Previous article Next article