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ISSUE 2

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Generation cycle closure of the spotted rose snapper, Lutjanus guttatus, in captivity

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Report of pathogens and parasites in Perumytilus purpuratus from San Jorge Bay, Antofagasta, Chile

RESEARCH NOTE

New insights into the life-history of the isopod Edotia dahli (Valvifera: Idoteidae): report of host-use and distribution records in the central Chilean coast

Authors

CORRESPONDING

Sergio A. Carrasco

scarrasco.o@gmail.com

1

1

School of Biological Sciences and Coastal Ecology Laboratory, Victoria University of Wellington, Wellington 6140, New Zealand

Osvaldo Cerda

2

2

Center for Advanced Studies in Arid Zones (CEAZA) and Universidad Católica del Norte, Larrondo 1281, Coquimbo, Chile

Mauricio Cifuentes

1

1

School of Biological Sciences and Coastal Ecology Laboratory, Victoria University of Wellington, Wellington 6140, New Zealand

3

3

Facultad de Ciencias del Mar, Universidad Católica del Norte, Larrondo 1281, Coquimbo, Chile

Abstract

Unreported aspects of the life-history of the isopod Edotia dahli are described based on intertidal collections carried out during 2002, 2005 and 2011 in 5 locations in central Chile (29-33°S; Pacific coast). Isopods were recorded for the first time living on 2 species of echinoderms, the sea-star Heliaster helianthus and the sea-urchin Arbacia sp. The observation of sea-urchins hosting isopods was casual (i.e., no formal samplings); however, nearly 20% of the sampled sea-stars hosted isopods (from 2 to > 100 individuals per host). This association was similar through years. Surveys also revealed that E. dahli was present at higher latitudes than those previously recorded in the central Chilean coast, extending the northern distribution range 3° to 29°S.

Key words

Idoteidae, inter-specific associations, Heliaster helianthusArbacia sp.

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