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Distribution and densities of the decapod crab Percnon gibbesi, an invasive Grapsidae, in western Mediterranean waters

2005; Inter-Research; Volume: 285; Linguagem: Inglês

10.3354/meps285151

1616-1599

Salud Deudero, A. Frau, Margalida Cerdà, Henrietta Hampel,

Parasite Biology and Host Interactions

MEPS 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 285:151-156 (2005) - doi:10.3354/meps285151 Distribution and densities of the decapod crabPercnon gibbesi, an invasive Grapsidae, in western Mediterranean waters S. Deudero1,*, A. Frau1, M. Cerda1, H. Hampel2 1Grup d'Oceanografia Interdisciplinar (GOI)-Institut Mediterrani d'Estudis Avançats-CSIC/UIB, Guillem Colom,Campus Universitari, Ctra. de Valldemossa, km 7.5, 07122 Palma de Mallorca, Spain 2Royal Belgian Institute of Natural Sciences, Vautierstraat 27, 1000 Brussels, Belgium *Email: salud.deudero@uib.es ABSTRACT: Density, population structure and spatial distribution of the invasive crab Percnon gibbesi in western Mediterranean waters were investigated. Densities appeared highest within pebble substrates, reaching up to 3 ind. m-2. Modal length was 20 mm carapace length (CL), with the presence of ovigerous females from 18 mm CL. Maximum densities were observed at 1 m depth. There were significant differences in habitat preference toward boulders of variable size with algal cover not higher than 0.5 cm. Although individuals were highly active during the daytime, activity patterns were highest at sunset. Further studies are required on the biology and ecology of this grapsid crab to better understand the reasons for its population growth along Mediterranean coasts and to ascertain the means of colonization. KEY WORDS: Percnon gibbesi · Grapsidae · Mediterranean · Alien species Full text in pdf format PreviousNextExport citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 285. Online publication date: January 19, 2005 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2005 Inter-Research.