Publication Date:
2022-05-25
Description:
Author Posting. © The Author(s), 2013. This is the author's version of the work. It is posted here by permission of The Royal Society for personal use, not for redistribution. The definitive version was published in Proceedings of the Royal Society B Biological Sciences 280 (2013): 20130327, doi:10.1098/rspb.2013.0327.
Description:
Several factors lead to expectations that the scale of larval dispersal and population
connectivity of marine animals differs with latitude. We examine this expectation for
demersal shorefishes, including relevant mechanisms, assumptions, and evidence.
We explore latitudinal differences in: 1) biological (e.g., species composition,
spawning mode, pelagic larval duration (PLD)), 2) physical (e.g., water movement,
habitat fragmentation), and 3) biophysical factors (primarily temperature, which could
strongly affect development, swimming ability, or feeding). Latitudinal differences
exist in taxonomic composition, habitat fragmentation, temperature, and larval
swimming, and each could influence larval dispersal. Nevertheless, clear evidence
for latitudinal differences in larval dispersal at the level of broad faunas is lacking.
For example, PLD is strongly influenced by taxon, habitat, and geographic region,
but no independent latitudinal trend is present in published PLD values. Any trends
in larval dispersal may be obscured by a lack of appropriate information, or use of
‘off the shelf’ information that is biased with regard to the species assemblages in
areas of concern. Biases may also be introduced from latitudinal differences in taxa
or spawning modes, as well as limited latitudinal sampling. We suggest research to
make progress on the question of latitudinal trends in larval dispersal.
Description:
TK was supported by the Norwegian Research Council through project
MENUII #190286. JML was supported by ARC Discovery Grant DP110100695.
JEC and RRW were supported by the Partnership for the Interdisciplinary Study of
Coastal Oceans, funded by The David and Lucille Packard Foundation and the
Gordon and Betty Moore Foundation.
Description:
2014-03-20
Keywords:
Population connectivity
;
Larval dispersal
;
Pelagic larval duration
;
Larval behaviour
;
Genetic structure
;
Habitat fragmentation
Repository Name:
Woods Hole Open Access Server
Type:
Preprint
Format:
application/pdf
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