A multivariate approach to the feeding ecology of the Channel flounder, Syacium micrurum (Pisces, Pleuronectiformes), in Cape Verde, Eastern Atlantic
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Redalyc · Ciencias Marinas
The feeding ecology of the Channel flounder, Syacium micrurum, from Cape Verde was studied in November 2003 and April 2004, using frequency of occurrence and percentage by number indices, as well as multivariate analyses. Overall, S. micrurum exhibited a generalist feeding strategy with a relatively...
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| Format: | Artículo científico |
| Sprache: | en |
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Universidad Autónoma de Baja California
2009
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| _version_ | 1878325299638173696 |
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| author | JF Marques |
| author_facet | JF Marques |
| collection | Ciencias Marinas |
| container_title | Ciencias Marinas |
| contents | A multivariate approach to the feeding ecology of the Channel flounder, Syacium micrurum (Pisces, Pleuronectiformes), in Cape Verde, Eastern Atlantic JF Marques CM Teixeira A Pinheiro K Peschke HN Cabral Ciencias de la Tierra flatfish Cape Verde diet diversity Paralichthyidae Syacium micrurum The feeding ecology of the Channel flounder, Syacium micrurum, from Cape Verde was studied in November 2003 and April 2004, using frequency of occurrence and percentage by number indices, as well as multivariate analyses. Overall, S. micrurum exhibited a generalist feeding strategy with a relatively broad niche width. Analyses indicated Crustacea (especially Brachyura) and Polychaeta as the dominant prey items, although other items, such as Foraminifera, Caridae or Actinopterigii, were preyed on more often or in larger quantities, depending on the sampling date. An ontogenetic shift in diet was also observed with smallsized individuals mostly consuming Crustacea, whereas medium- or large-sized specimens fed on Actinopterigii more often. Diet composition appeared to be more related to differences in benthic assemblages between sampling dates due to the geographical characteristics of Cabo Verde. Results presented here support the need for further studies in the area, mainly those considering the composition and seasonal variation of invertebrate communities, to improve the knowledge of the trophic structure of commercially important species within this area. 2009 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48013192002 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.1 Vol.35 |
| ctrlnum | oai:cienciasmarinas.com.mx:article/1469 10.7773/cm.v35i1.1469 |
| description | The feeding ecology of the Channel flounder, Syacium micrurum, from Cape Verde was studied in November 2003 and April 2004, using frequency of occurrence and percentage by number indices, as well as multivariate analyses. Overall, S. micrurum exhibited a generalist feeding strategy with a relatively broad niche width. Analyses indicated Crustacea (especially Brachyura) and Polychaeta as the dominant prey items, although other items, such as Foraminifera, Caridae or Actinopterigii, were preyed on more often or in larger quantities, depending on the sampling date. An ontogenetic shift in diet was also observed with smallsized individuals mostly consuming Crustacea, whereas medium- or large-sized specimens fed on Actinopterigii more often. Diet composition appeared to be more related to differences in benthic assemblages between sampling dates due to the geographical characteristics of Cabo Verde. Results presented here support the need for further studies in the area, mainly those considering the composition and seasonal variation of invertebrate communities, to improve the knowledge of the trophic structure of commercially important species within this area.
En noviembre de 2003 y abril de 2004 se estudió la ecología alimenticia del lenguado anillado, Syacium micrurum, de Cabo Verde, usando los índices de frecuencia de ocurrencia y porcentaje por número, así como un análisis multivariado. En general, S. micrurum mostró una estrategia de alimentación generalista y relativamente diversificada. Los análisis indicaron que entre sus presas predominaron los crustáceos (particularmente braquiuros) y poliquetos, aunque otros grupos como los Foraminifera, Caridae o Actinopterigii aparecen con mayor frecuencia o en mayor cantidad, dependiendo de la época de muestreo. También se observó un cambio ontogénico en la dieta: los individuos más pequeños consumieron sobre todo crustáceos, mientras que los medianos y grandes se alimentaron con mayor frecuencia de actinopterigios. La composición de la dieta parece estar más relacionada con la composición específica de la comunidad bentónica en las épocas de muestreo, debida a su vez a las características geográficas de Cabo Verde. Los resultados presentados en este trabajo apoyan la necesidad de profundizar en este tipo de estudios, particularmente considerando la composición de las comunidades de invertebrados y su variación estacional, de manera que se profundice en el conocimiento de la estructura trófica de las especies de interés comercial que habitan en Cabo Verde. |
| format | Artículo científico |
| id | redalyc_48013192002 |
| institution | Redalyc Ciencias Marinas |
| language | en |
| publishDate | 2009 |
| publisher | Universidad Autónoma de Baja California |
| spelling | A multivariate approach to the feeding ecology of the Channel flounder, Syacium micrurum (Pisces, Pleuronectiformes), in Cape Verde, Eastern Atlantic Análisis multivariado de la ecología alimenticia del lenguado anillado, Syacium micrurum (Pisces, Pleuronectiformes), en Cabo Verde, Atlántico orienta Marques, JF Teixeira, CM Pinheiro, A Peschke, K Cabral, HN Cape Verde diet diversity flatfish Paralichthyidae Syacium micrurum Cabo Verde diversidad alimenticia Paralichthydae peces planos Syacium micrurum The feeding ecology of the Channel flounder, Syacium micrurum, from Cape Verde was studied in November 2003 and April 2004, using frequency of occurrence and percentage by number indices, as well as multivariate analyses. Overall, S. micrurum exhibited a generalist feeding strategy with a relatively broad niche width. Analyses indicated Crustacea (especially Brachyura) and Polychaeta as the dominant prey items, although other items, such as Foraminifera, Caridae or Actinopterigii, were preyed on more often or in larger quantities, depending on the sampling date. An ontogenetic shift in diet was also observed with smallsized individuals mostly consuming Crustacea, whereas medium- or large-sized specimens fed on Actinopterigii more often. Diet composition appeared to be more related to differences in benthic assemblages between sampling dates due to the geographical characteristics of Cabo Verde. Results presented here support the need for further studies in the area, mainly those considering the composition and seasonal variation of invertebrate communities, to improve the knowledge of the trophic structure of commercially important species within this area. En noviembre de 2003 y abril de 2004 se estudió la ecología alimenticia del lenguado anillado, Syacium micrurum, de Cabo Verde, usando los índices de frecuencia de ocurrencia y porcentaje por número, así como un análisis multivariado. En general, S. micrurum mostró una estrategia de alimentación generalista y relativamente diversificada. Los análisis indicaron que entre sus presas predominaron los crustáceos (particularmente braquiuros) y poliquetos, aunque otros grupos como los Foraminifera, Caridae o Actinopterigii aparecen con mayor frecuencia o en mayor cantidad, dependiendo de la época de muestreo. También se observó un cambio ontogénico en la dieta: los individuos más pequeños consumieron sobre todo crustáceos, mientras que los medianos y grandes se alimentaron con mayor frecuencia de actinopterigios. La composición de la dieta parece estar más relacionada con la composición específica de la comunidad bentónica en las épocas de muestreo, debida a su vez a las características geográficas de Cabo Verde. Los resultados presentados en este trabajo apoyan la necesidad de profundizar en este tipo de estudios, particularmente considerando la composición de las comunidades de invertebrados y su variación estacional, de manera que se profundice en el conocimiento de la estructura trófica de las especies de interés comercial que habitan en Cabo Verde. Universidad Autónoma de Baja California, Instituto de Investigaciones Oceanológicas 2009-03-20 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado application/pdf https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/1469 10.7773/cm.v35i1.1469 Ciencias Marinas; Vol. 35 No. 1 (2009); 15–27 Ciencias Marinas; Vol. 35 Núm. 1 (2009); 15–27 2395-9053 0185-3880 eng https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/1469/1808 ['Redalyc'] redalyc_48013192002 A multivariate approach to the feeding ecology of the Channel flounder, Syacium micrurum (Pisces, Pleuronectiformes), in Cape Verde, Eastern Atlantic ['A multivariate approach to the feeding ecology of the Channel flounder, Syacium micrurum (Pisces, Pleuronectiformes), in Cape Verde, Eastern Atlantic', 'JF Marques', 'Ciencias de la Tierra', 'flatfish', 'Cape Verde', 'diet diversity', 'Paralichthyidae', 'Syacium micrurum', 'A multivariate approach to the feeding ecology of the Channel flounder, Syacium micrurum (Pisces, Pleuronectiformes), in Cape Verde, Eastern Atlantic JF Marques CM Teixeira A Pinheiro K Peschke HN Cabral Ciencias de la Tierra flatfish Cape Verde diet diversity Paralichthyidae Syacium micrurum The feeding ecology of the Channel flounder, Syacium micrurum, from Cape Verde was studied in November 2003 and April 2004, using frequency of occurrence and percentage by number indices, as well as multivariate analyses. Overall, S. micrurum exhibited a generalist feeding strategy with a relatively broad niche width. Analyses indicated Crustacea (especially Brachyura) and Polychaeta as the dominant prey items, although other items, such as Foraminifera, Caridae or Actinopterigii, were preyed on more often or in larger quantities, depending on the sampling date. An ontogenetic shift in diet was also observed with smallsized individuals mostly consuming Crustacea, whereas medium- or large-sized specimens fed on Actinopterigii more often. Diet composition appeared to be more related to differences in benthic assemblages between sampling dates due to the geographical characteristics of Cabo Verde. Results presented here support the need for further studies in the area, mainly those considering the composition and seasonal variation of invertebrate communities, to improve the knowledge of the trophic structure of commercially important species within this area. 2009 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48013192002 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.1 Vol.35'] ['JF Marques'] ['JF Marques'] ['Artículo científico'] ['2009'] ['Universidad Autónoma de Baja California'] ['en'] ['Ciencias de la Tierra', 'flatfish', 'Cape Verde', 'diet diversity', 'Paralichthyidae', 'Syacium micrurum'] ['https://www.redalyc.org/articulo.oa?id=48013192002'] ['A multivariate approach to the feeding ecology of the Channel flounder, Syacium micrurum (Pisces, Pleuronectiformes), in Cape Verde, Eastern Atlantic JF Marques CM Teixeira A Pinheiro K Peschke HN Cabral Ciencias de la Tierra flatfish Cape Verde diet diversity Paralichthyidae Syacium micrurum The feeding ecology of the Channel flounder, Syacium micrurum, from Cape Verde was studied in November 2003 and April 2004, using frequency of occurrence and percentage by number indices, as well as multivariate analyses. Overall, S. micrurum exhibited a generalist feeding strategy with a relatively broad niche width. Analyses indicated Crustacea (especially Brachyura) and Polychaeta as the dominant prey items, although other items, such as Foraminifera, Caridae or Actinopterigii, were preyed on more often or in larger quantities, depending on the sampling date. An ontogenetic shift in diet was also observed with smallsized individuals mostly consuming Crustacea, whereas medium- or large-sized specimens fed on Actinopterigii more often. Diet composition appeared to be more related to differences in benthic assemblages between sampling dates due to the geographical characteristics of Cabo Verde. Results presented here support the need for further studies in the area, mainly those considering the composition and seasonal variation of invertebrate communities, to improve the knowledge of the trophic structure of commercially important species within this area. 2009 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48013192002 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.1 Vol.35'] |
| spellingShingle | A multivariate approach to the feeding ecology of the Channel flounder, Syacium micrurum (Pisces, Pleuronectiformes), in Cape Verde, Eastern Atlantic JF Marques Ciencias de la Tierra flatfish Cape Verde diet diversity Paralichthyidae Syacium micrurum A multivariate approach to the feeding ecology of the Channel flounder, Syacium micrurum (Pisces, Pleuronectiformes), in Cape Verde, Eastern Atlantic JF Marques CM Teixeira A Pinheiro K Peschke HN Cabral Ciencias de la Tierra flatfish Cape Verde diet diversity Paralichthyidae Syacium micrurum The feeding ecology of the Channel flounder, Syacium micrurum, from Cape Verde was studied in November 2003 and April 2004, using frequency of occurrence and percentage by number indices, as well as multivariate analyses. Overall, S. micrurum exhibited a generalist feeding strategy with a relatively broad niche width. Analyses indicated Crustacea (especially Brachyura) and Polychaeta as the dominant prey items, although other items, such as Foraminifera, Caridae or Actinopterigii, were preyed on more often or in larger quantities, depending on the sampling date. An ontogenetic shift in diet was also observed with smallsized individuals mostly consuming Crustacea, whereas medium- or large-sized specimens fed on Actinopterigii more often. Diet composition appeared to be more related to differences in benthic assemblages between sampling dates due to the geographical characteristics of Cabo Verde. Results presented here support the need for further studies in the area, mainly those considering the composition and seasonal variation of invertebrate communities, to improve the knowledge of the trophic structure of commercially important species within this area. 2009 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48013192002 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.1 Vol.35 |
| title | A multivariate approach to the feeding ecology of the Channel flounder, Syacium micrurum (Pisces, Pleuronectiformes), in Cape Verde, Eastern Atlantic |
| title_alt | Análisis multivariado de la ecología alimenticia del lenguado anillado, Syacium micrurum (Pisces, Pleuronectiformes), en Cabo Verde, Atlántico orienta |
| topic | Ciencias de la Tierra flatfish Cape Verde diet diversity Paralichthyidae Syacium micrurum |
| topic_facet | Cape Verde diet diversity flatfish Paralichthyidae Syacium micrurum Cabo Verde diversidad alimenticia Paralichthydae peces planos |
| url | https://www.redalyc.org/articulo.oa?id=48013192002 https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/1469 |