Pelagic larval duration and geographic distribution of tropical eastern Pacific snappers (Pisces: Lutjanidae)
2002; Inter-Research; Volume: 230; Linguagem: Inglês
10.3354/meps230295
ISSN1616-1599
Autores Tópico(s)Marine Bivalve and Aquaculture Studies
ResumoMEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 230:295-300 (2002) - doi:10.3354/meps230295 Pelagic larval duration and geographic distribution of tropical eastern Pacific snappers (Pisces: Lutjanidae) Fernando A. Zapata*, Pilar A. Herrón** Departamento de Biología, Universidad del Valle, Apartado Aéreo 25360, Cali, Colombia Present addresses: *Department of Zoology and Entomology, University of Pretoria, Pretoria 0002, South Africa. E-mail: fazapata@zoology.up.ac.za **Department of Marine Science and Coastal Management, University of Newcastle upon Tyne, Newcastle upon Tyne NE1 7RU, United Kingdom ABSTRACT: To test the hypothesis that pelagic larval duration (PLD) plays a role in the longitudinal dispersal of reef fishes, we examined the relationship between PLD and occupancy of oceanic islands among tropical eastern Pacific (TEP) snappers (Lutjanidae). We estimated PLD from analysis of the otolith microstructure of juveniles collected at 2 localities from the Pacific coast of Colombia. Otoliths had a distinct 1increment settlement transition, along which increment width gradually decreased in 1 species examined (Lutjanus guttatus). PLD estimated from lapilli was relatively short (21.8 to 24.4 d) and invariant (3.1 to 9.6% coefficients of variation [CV]) in L. argentiventris, L. guttatus, L. novemfasciatus, and Hoplopagrus guntheri, but was relatively long in L. viridis (37.9 d, CV = 8.6%). Mean PLD was not correlated with the largest distance between any 2 localities occupied but was positively correlated with number of oceanic islands occupied. Consideration of the geographic isolation of each island improved the strength of the latter relationship. However, these patterns were largely due to L. viridis, which was present in all oceanic islands, including Clipperton Atoll, the most isolated island in the TEP. This study suggests that the longitudinal component of species' ranges (measured by occupancy of reefs around oceanic islands) reflects dispersal abilities, yet overall range size is independent of PLD because other factors determine other components of geographic range. KEY WORDS: Early life history · Geographic range size · Lutjanidae · Otolith microstructure · Pelagic larval duration · Reef fishes Full text in pdf format PreviousExport citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 230. Online publication date: April 05, 2002 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2002 Inter-Research.
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