Growth and mortality of Cachana (Cynopotamus atratoensis) in the cienaga Grande de Lorica, Colombia
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Universidad de Córdoba
2015
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| _version_ | 1876463834946863104 |
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| author | Charles Olaya-Nieto |
| author_facet | Charles Olaya-Nieto |
| contents | Growth and mortality of Cachana (Cynopotamus atratoensis) in the cienaga Grande de Lorica, Colombia Charles Olaya-Nieto Fredys Segura-Guevara Antonio Vergara-Paternina Veterinaria migration management Conservation exploitation rate overfishing ( Source: ASFA ) Objective . Growth and mortality parameters of Cachana Cynopotamus atratoensis Eigenmann, 1907 in the cienaga Grande de Lorica, Sinu river basin, Colombia, were estimated. Materials and methods . The length frequency analysis to the information collected between January 2001 to December 2002, was applied. Results . The estimated values for asymptotic length, growth rate and age at zero length were 43.4 ( ± 0.52) cm of total length, 0.29 ( ± 0.02) year -1 and -0.53 years, respectively. Total mortality was estimated at 0.97 year -1 , natural mortality at 0.72 year -1 , fishing mortality at 0.25, the average catch size was 24.8 cm total length, being fully recruited to the fishery with 16.6 cm total length, with low exploitation rate (E: 0.26). Conclusions. Cachana is a fish with medium longevity and growth rate with low exploitation rate, suggesting that there is still no overfishing on the species. However, as it is an very important fish in the food security of fishermen and their families, its necessary to increase the basic biology research pointing to the management and conservation of the species in the cienaga and the Sinu basin. 2015 artículo científico 0122-0268 https://www.redalyc.org/articulo.oa?id=69342523016 en http://www.redalyc.org/revista.oa?id=693 Revista MVZ Córdoba application/pdf Universidad de Córdoba Revista MVZ Córdoba (Colombia) Vol.20 |
| format | Artículo científico |
| id | redalyc_69342523016 |
| institution | Redalyc |
| language | en |
| publishDate | 2015 |
| publisher | Universidad de Córdoba |
| spellingShingle | Growth and mortality of Cachana (Cynopotamus atratoensis) in the cienaga Grande de Lorica, Colombia Charles Olaya-Nieto Veterinaria migration management Conservation exploitation rate overfishing ( Source: ASFA ) Growth and mortality of Cachana (Cynopotamus atratoensis) in the cienaga Grande de Lorica, Colombia Charles Olaya-Nieto Fredys Segura-Guevara Antonio Vergara-Paternina Veterinaria migration management Conservation exploitation rate overfishing ( Source: ASFA ) Objective . Growth and mortality parameters of Cachana Cynopotamus atratoensis Eigenmann, 1907 in the cienaga Grande de Lorica, Sinu river basin, Colombia, were estimated. Materials and methods . The length frequency analysis to the information collected between January 2001 to December 2002, was applied. Results . The estimated values for asymptotic length, growth rate and age at zero length were 43.4 ( ± 0.52) cm of total length, 0.29 ( ± 0.02) year -1 and -0.53 years, respectively. Total mortality was estimated at 0.97 year -1 , natural mortality at 0.72 year -1 , fishing mortality at 0.25, the average catch size was 24.8 cm total length, being fully recruited to the fishery with 16.6 cm total length, with low exploitation rate (E: 0.26). Conclusions. Cachana is a fish with medium longevity and growth rate with low exploitation rate, suggesting that there is still no overfishing on the species. However, as it is an very important fish in the food security of fishermen and their families, its necessary to increase the basic biology research pointing to the management and conservation of the species in the cienaga and the Sinu basin. 2015 artículo científico 0122-0268 https://www.redalyc.org/articulo.oa?id=69342523016 en http://www.redalyc.org/revista.oa?id=693 Revista MVZ Córdoba application/pdf Universidad de Córdoba Revista MVZ Córdoba (Colombia) Vol.20 |
| title | Growth and mortality of Cachana (Cynopotamus atratoensis) in the cienaga Grande de Lorica, Colombia |
| topic | Veterinaria migration management Conservation exploitation rate overfishing ( Source: ASFA ) |
| url | https://www.redalyc.org/articulo.oa?id=69342523016 |