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Geographic distribution and description of four pelagic barnacles along the south east Pacific coast of Chile - a zoogeographical approximation
Citation
Hinojosa Toledo, IA and Boltana, S and Lancellotti, D and Macaya, E and Ugalde, P and Valdivia, N and Vasquez, N and Newman, WA and Thiel, M, Geographic distribution and description of four pelagic barnacles along the south east Pacific coast of Chile - a zoogeographical approximation, Revista Chilena de Historia Natural, 79, (1) pp. 13-27. ISSN 0716-078X (2006) [Refereed Article]
Copyright Statement
Copyright 2006 Sociedad de Biología de Chile.
DOI: doi:10.4067/S0716-078X2006000100002
Abstract
The majority of zoogeographic studies along the Chilean Pacific coast have focused on benthic organisms and
oceanographic conditions are considered the main factors influencing their distributions. Herein we examined
the geographic distribution of pelagic barnacles of the family Lepadidae collected from floating macroalgae at
seven sampling areas between 23 and 50° S. Four species were encountered and they are briefly described
herein. The most abundant northern species was Lepas anatifera, and it diminished in abundance towards the
south (33° S). Moreover, this species was not found in waters with a sea surface temperature (SST) of less
than ~18 ºC. Lepas australis, primarily a circumpolar West Wind Drift species, diminished in abundance
towards the north (33° S). This species was restricted to waters of < 18 ºC SST. A third species, L. pectinata,
was encountered throughout almost the entire study area, but it was most abundant between 29 and 33° S. The
fourth species, Dosima fascicularis, was only found at two sampling areas, namely at 27° S and 33° S, and
this is the first record of this species from the central coast of Chile. The distributional pattern of the pelagic
barnacles found herein corresponds to the three main zoogeographic regions as revealed by the majority of
previous studies based on littoral organisms: the northern Peru-Chilean Province, the southern Magellanic
Province, and the central Chilean Transition Zone where the two provinces overlap. Even though the present
study only considers four species of pelagic barnacles, the results support the hypotheses on the importance of
oceanographic conditions (in particular SST) in determining the zoogeographic patterns along the south east
Pacific coast of Chile.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | zoogeography, Lepas, oceanography, pelagic, Cirripedia |
| Research Division: | Biological Sciences |
| Research Group: | Evolutionary Biology |
| Research Field: | Biogeography and Phylogeography |
| Objective Division: | Environment |
| Objective Group: | Flora, Fauna and Biodiversity |
| Objective Field: | Marine Flora, Fauna and Biodiversity |
| Author: | Hinojosa Toledo, IA (Mr Ivan Hinojosa) |
| ID Code: | 88982 |
| Year Published: | 2006 |
| Web of Science® Times Cited: | 22 |
| Deposited By: | Sustainable Marine Research Collaboration |
| Deposited On: | 2014-02-21 |
| Last Modified: | 2014-06-12 |
| Downloads: | 0 |
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