Distribution and feeding habits of three sea robin species (Bellator brachychir, Prionotus nudigula and Prionotus punctatus) in the Campos Basin, southeastern Brazil
The distribution, size structure, and feeding of three sea robin species belonging to the family Triglidae (Bellator brachychir, Prionotus nudigula and Prionotus punctatus) were studied based on specimens caught with bottom trawls on the continental shelf of Campos Basin, southeastern Brazil. The two Prionotus species were more concentrated in the inner shelf (<50 m), while B. brachychir was generally more abundant on the outer shelf (50-100 m). In general, the three species showed a carcinophagous diet, but with small overlap in their main preys. While amphipods was the most important prey to B. brachychir, isopods and shrimps were the basic food item found in P. nudigula and P. punctatus diet, respectively. This reduction in interspecific competition for food was followed by some degree of spatial segregation and thermal preferences for each species.
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Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
2014
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oai:scielo:S0718-560X20140003000092014-10-10Distribution and feeding habits of three sea robin species (Bellator brachychir, Prionotus nudigula and Prionotus punctatus) in the Campos Basin, southeastern Brazilde São Clemente,Ricardo R.B.Costa,Paulo A.S.Martins,Agnaldo S sea robin Triglidae distribution feeding ecology Campos Basin southeastern Brazil The distribution, size structure, and feeding of three sea robin species belonging to the family Triglidae (Bellator brachychir, Prionotus nudigula and Prionotus punctatus) were studied based on specimens caught with bottom trawls on the continental shelf of Campos Basin, southeastern Brazil. The two Prionotus species were more concentrated in the inner shelf (<50 m), while B. brachychir was generally more abundant on the outer shelf (50-100 m). In general, the three species showed a carcinophagous diet, but with small overlap in their main preys. While amphipods was the most important prey to B. brachychir, isopods and shrimps were the basic food item found in P. nudigula and P. punctatus diet, respectively. This reduction in interspecific competition for food was followed by some degree of spatial segregation and thermal preferences for each species.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.42 n.3 20142014-07-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2014000300009en |
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de São Clemente,Ricardo R.B. Costa,Paulo A.S. Martins,Agnaldo S |
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de São Clemente,Ricardo R.B. Costa,Paulo A.S. Martins,Agnaldo S Distribution and feeding habits of three sea robin species (Bellator brachychir, Prionotus nudigula and Prionotus punctatus) in the Campos Basin, southeastern Brazil |
author_facet |
de São Clemente,Ricardo R.B. Costa,Paulo A.S. Martins,Agnaldo S |
author_sort |
de São Clemente,Ricardo R.B. |
title |
Distribution and feeding habits of three sea robin species (Bellator brachychir, Prionotus nudigula and Prionotus punctatus) in the Campos Basin, southeastern Brazil |
title_short |
Distribution and feeding habits of three sea robin species (Bellator brachychir, Prionotus nudigula and Prionotus punctatus) in the Campos Basin, southeastern Brazil |
title_full |
Distribution and feeding habits of three sea robin species (Bellator brachychir, Prionotus nudigula and Prionotus punctatus) in the Campos Basin, southeastern Brazil |
title_fullStr |
Distribution and feeding habits of three sea robin species (Bellator brachychir, Prionotus nudigula and Prionotus punctatus) in the Campos Basin, southeastern Brazil |
title_full_unstemmed |
Distribution and feeding habits of three sea robin species (Bellator brachychir, Prionotus nudigula and Prionotus punctatus) in the Campos Basin, southeastern Brazil |
title_sort |
distribution and feeding habits of three sea robin species (bellator brachychir, prionotus nudigula and prionotus punctatus) in the campos basin, southeastern brazil |
description |
The distribution, size structure, and feeding of three sea robin species belonging to the family Triglidae (Bellator brachychir, Prionotus nudigula and Prionotus punctatus) were studied based on specimens caught with bottom trawls on the continental shelf of Campos Basin, southeastern Brazil. The two Prionotus species were more concentrated in the inner shelf (<50 m), while B. brachychir was generally more abundant on the outer shelf (50-100 m). In general, the three species showed a carcinophagous diet, but with small overlap in their main preys. While amphipods was the most important prey to B. brachychir, isopods and shrimps were the basic food item found in P. nudigula and P. punctatus diet, respectively. This reduction in interspecific competition for food was followed by some degree of spatial segregation and thermal preferences for each species. |
publisher |
Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar |
publishDate |
2014 |
url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2014000300009 |
work_keys_str_mv |
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