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Does fish larval dispersal differ between high and low latitudes?


Leis, JM and Caselle, JE and Bradbury, IR and Kristiansen, T and Llopiz, JK and Miller, MJ and O'Connor, MI and Paris, CB and Shanks, AL and Sogard, SM and Swearer, SE and Treml, EA and Vetter, RD and Warner, RR, Does fish larval dispersal differ between high and low latitudes?, Proceedings of the Royal Society of London B: Biological Sciences, 280, (1759) Article 20130327. ISSN 0962-8452 (2013) [Refereed Article]

Copyright Statement

Copyright 2013 The Authors

DOI: doi:10.1098/rspb.2013.0327


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 (i) biological (e.g. species composition, spawning mode, pelagic larval duration, PLD), (ii) physical (e.g. water movement, habitat fragmentation), and (iii) 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 difference 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 geographical 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.

Item Details

Item Type:Refereed Article
Keywords:population connectivity, larval dispersal, pelagic larval duration, larval behaviour, genetic structure, habitat fragmentation
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Marine and estuarine ecology (incl. marine ichthyology)
Objective Division:Environmental Management
Objective Group:Marine systems and management
Objective Field:Marine biodiversity
UTAS Author:Leis, JM (Dr Jeff Leis)
ID Code:86351
Year Published:2013
Web of Science® Times Cited:51
Deposited By:IMAS Research and Education Centre
Deposited On:2013-09-06
Last Modified:2014-04-15

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