Seasonal and vertical distribution of medusae in Aysén region, southern Chile

Medusae collected in winter and spring 2007 were analyzed in a longitudinal transect made between the Boca de Guafo and Elefantes Fjord, southern Chile. A total of 30 species were identified, Hydromedusae (29) and Scyphozoa (1), where Bougainvillia macloviana, Hybocodon chilensis, Hydractinia tenuis...

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Autores principales: Bravo,Viviana, Palma,Sergio, Silva,Nelson
Lenguaje:English
Publicado: Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2011
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2011000200017
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spelling oai:scielo:S0718-560X20110002000172011-07-26Seasonal and vertical distribution of medusae in Aysén region, southern ChileBravo,VivianaPalma,SergioSilva,Nelson Cnidaria hydromedusae scyphozoa seasonal distribution vertical distribution southern Chile Medusae collected in winter and spring 2007 were analyzed in a longitudinal transect made between the Boca de Guafo and Elefantes Fjord, southern Chile. A total of 30 species were identified, Hydromedusae (29) and Scyphozoa (1), where Bougainvillia macloviana, Hybocodon chilensis, Hydractinia tenuis, Laodicea pulcra, L. undulada, Modeeria rotunda and Chrysaora plocamia represent new records for the area. A significant increase in the jellyfish abundance was higher in spring than in winter (fourteen times higher), with 68% of common species in both seasons. The specific diversity was slightly higher in winter (3.4 bits) than spring (3.2 bits), the species richness instead was higher in spring than in winter, with a mean of 5 and 12 species, respectively. The vertical distribution showed the presence of surface (H. borealis), deep (A. apicata, C. peregrina and R. velatum) and wide bathymetric distribution (B. muscoides and B. muscus) species. Results from the area were compared with previous results (2002-2003) thus proving that most species identified are common in southern Chilean fjords and channels.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.39 n.2 20112011-07-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2011000200017en
institution Scielo Chile
collection Scielo Chile
language English
topic Cnidaria
hydromedusae
scyphozoa
seasonal distribution
vertical distribution
southern Chile
spellingShingle Cnidaria
hydromedusae
scyphozoa
seasonal distribution
vertical distribution
southern Chile
Bravo,Viviana
Palma,Sergio
Silva,Nelson
Seasonal and vertical distribution of medusae in Aysén region, southern Chile
description Medusae collected in winter and spring 2007 were analyzed in a longitudinal transect made between the Boca de Guafo and Elefantes Fjord, southern Chile. A total of 30 species were identified, Hydromedusae (29) and Scyphozoa (1), where Bougainvillia macloviana, Hybocodon chilensis, Hydractinia tenuis, Laodicea pulcra, L. undulada, Modeeria rotunda and Chrysaora plocamia represent new records for the area. A significant increase in the jellyfish abundance was higher in spring than in winter (fourteen times higher), with 68% of common species in both seasons. The specific diversity was slightly higher in winter (3.4 bits) than spring (3.2 bits), the species richness instead was higher in spring than in winter, with a mean of 5 and 12 species, respectively. The vertical distribution showed the presence of surface (H. borealis), deep (A. apicata, C. peregrina and R. velatum) and wide bathymetric distribution (B. muscoides and B. muscus) species. Results from the area were compared with previous results (2002-2003) thus proving that most species identified are common in southern Chilean fjords and channels.
author Bravo,Viviana
Palma,Sergio
Silva,Nelson
author_facet Bravo,Viviana
Palma,Sergio
Silva,Nelson
author_sort Bravo,Viviana
title Seasonal and vertical distribution of medusae in Aysén region, southern Chile
title_short Seasonal and vertical distribution of medusae in Aysén region, southern Chile
title_full Seasonal and vertical distribution of medusae in Aysén region, southern Chile
title_fullStr Seasonal and vertical distribution of medusae in Aysén region, southern Chile
title_full_unstemmed Seasonal and vertical distribution of medusae in Aysén region, southern Chile
title_sort seasonal and vertical distribution of medusae in aysén region, southern chile
publisher Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate 2011
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2011000200017
work_keys_str_mv AT bravoviviana seasonalandverticaldistributionofmedusaeinaysenregionsouthernchile
AT palmasergio seasonalandverticaldistributionofmedusaeinaysenregionsouthernchile
AT silvanelson seasonalandverticaldistributionofmedusaeinaysenregionsouthernchile
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