Faunal assemblages of intertidal hydroids (Hydrozoa, Cnidaria) from Argentinean Patagonia (Southwestern Atlantic Ocean)

This study provides taxonomical and ecological accounts for the poorly known diversity of hydroids distributed over ~2,000 km of Argentinean Patagonian intertidal habitats (42°-54°S). Sampling was performed in 11 sites with tidal amplitude between 6-13 m dominated by rocky outcrops, breakwaters, and...

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Autores principales:	Genzano,Gabriel, Bremec,Claudia S, Diaz-Briz,Luciana, Costello,John H, Morandini,Andre C, Miranda,Thaís P, Marques,Antonio C
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2017
Materias:	hydroids community salt marshes rocky intertidal Argentinean Patagonia southwestern Atlantic
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2017000100017
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id	oai:scielo:S0718-560X2017000100017
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spelling	oai:scielo:S0718-560X20170001000172017-04-21Faunal assemblages of intertidal hydroids (Hydrozoa, Cnidaria) from Argentinean Patagonia (Southwestern Atlantic Ocean)Genzano,GabrielBremec,Claudia SDiaz-Briz,LucianaCostello,John HMorandini,Andre CMiranda,Thaís PMarques,Antonio C hydroids community salt marshes rocky intertidal Argentinean Patagonia southwestern Atlantic This study provides taxonomical and ecological accounts for the poorly known diversity of hydroids distributed over ~2,000 km of Argentinean Patagonian intertidal habitats (42°-54°S). Sampling was performed in 11 sites with tidal amplitude between 6-13 m dominated by rocky outcrops, breakwaters, and salt marshes. Samples were sorted and identified up to the species level and hydroid associations were analyzed by multivariate analyses. A total of 26 species were recorded. The most frequent species were Amphisbetia operculata, present in 8 of the 10 sites inhabited by hydroids, followed by Symplectoscyphus subdichotomus and Nemertesia ramosa. All recorded hydroids are geographically and bathymetrically widely distributed species, common at the austral hemisphere. Seven species (Coryne eximia, Bougainvillia muscus, Ectopleura crocea, Hybocodon unicus, Halecium delicatulum, Plumularia setacea, and Clytia gracilis) were reported from intertidal fringes. Species richness differed according to the composition of the bottom, topographical complexity and density of mytilid communities. Some muddy intertidal fringes dominated by the glasswort Sarcocornia perennis had an unexpected hydroid fauna composition, never reported for salt marsh habitats, representing a remarkable novelty for the hydroid literature. The lack of studies on the hydroid fauna from these particular habitats represented a substantial gap for our biodiversity knowledge.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.45 n.1 20172017-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2017000100017en10.3856/vol45-issue1-fulltext-17
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	hydroids community salt marshes rocky intertidal Argentinean Patagonia southwestern Atlantic
spellingShingle	hydroids community salt marshes rocky intertidal Argentinean Patagonia southwestern Atlantic Genzano,Gabriel Bremec,Claudia S Diaz-Briz,Luciana Costello,John H Morandini,Andre C Miranda,Thaís P Marques,Antonio C Faunal assemblages of intertidal hydroids (Hydrozoa, Cnidaria) from Argentinean Patagonia (Southwestern Atlantic Ocean)
description	This study provides taxonomical and ecological accounts for the poorly known diversity of hydroids distributed over ~2,000 km of Argentinean Patagonian intertidal habitats (42°-54°S). Sampling was performed in 11 sites with tidal amplitude between 6-13 m dominated by rocky outcrops, breakwaters, and salt marshes. Samples were sorted and identified up to the species level and hydroid associations were analyzed by multivariate analyses. A total of 26 species were recorded. The most frequent species were Amphisbetia operculata, present in 8 of the 10 sites inhabited by hydroids, followed by Symplectoscyphus subdichotomus and Nemertesia ramosa. All recorded hydroids are geographically and bathymetrically widely distributed species, common at the austral hemisphere. Seven species (Coryne eximia, Bougainvillia muscus, Ectopleura crocea, Hybocodon unicus, Halecium delicatulum, Plumularia setacea, and Clytia gracilis) were reported from intertidal fringes. Species richness differed according to the composition of the bottom, topographical complexity and density of mytilid communities. Some muddy intertidal fringes dominated by the glasswort Sarcocornia perennis had an unexpected hydroid fauna composition, never reported for salt marsh habitats, representing a remarkable novelty for the hydroid literature. The lack of studies on the hydroid fauna from these particular habitats represented a substantial gap for our biodiversity knowledge.
author	Genzano,Gabriel Bremec,Claudia S Diaz-Briz,Luciana Costello,John H Morandini,Andre C Miranda,Thaís P Marques,Antonio C
author_facet	Genzano,Gabriel Bremec,Claudia S Diaz-Briz,Luciana Costello,John H Morandini,Andre C Miranda,Thaís P Marques,Antonio C
author_sort	Genzano,Gabriel
title	Faunal assemblages of intertidal hydroids (Hydrozoa, Cnidaria) from Argentinean Patagonia (Southwestern Atlantic Ocean)
title_short	Faunal assemblages of intertidal hydroids (Hydrozoa, Cnidaria) from Argentinean Patagonia (Southwestern Atlantic Ocean)
title_full	Faunal assemblages of intertidal hydroids (Hydrozoa, Cnidaria) from Argentinean Patagonia (Southwestern Atlantic Ocean)
title_fullStr	Faunal assemblages of intertidal hydroids (Hydrozoa, Cnidaria) from Argentinean Patagonia (Southwestern Atlantic Ocean)
title_full_unstemmed	Faunal assemblages of intertidal hydroids (Hydrozoa, Cnidaria) from Argentinean Patagonia (Southwestern Atlantic Ocean)
title_sort	faunal assemblages of intertidal hydroids (hydrozoa, cnidaria) from argentinean patagonia (southwestern atlantic ocean)
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2017
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2017000100017
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Faunal assemblages of intertidal hydroids (Hydrozoa, Cnidaria) from Argentinean Patagonia (Southwestern Atlantic Ocean)

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