Dynamic population of the flatfish Xystreurys rasile, from the Southwestern Atlantic between 34° and 40°S
The present paper deals with the dynamic population of the flatfish Xystreurys rasile on the Southwest Atlantic between 34° and 40°S. Increase of mean size of Xystreurys rasile's shoals was observed to the south. The smallest specimens were found in coastal waters in Spring. Two groups were ide...
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| Formato: | JOUR |
| Lenguaje: | Spanish |
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_07161069_v29_n1_p83_Fabre |
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todo:paper_07161069_v29_n1_p83_Fabre2023-10-03T15:36:16Z Dynamic population of the flatfish Xystreurys rasile, from the Southwestern Atlantic between 34° and 40°S Fabré, N.N. Cousseau, M.B. Denegri, M.A. Dynamics population Flatfish Southwest atlantic Structure Xystreurys rasile Pleuronectiformes Xystreurys rasile The present paper deals with the dynamic population of the flatfish Xystreurys rasile on the Southwest Atlantic between 34° and 40°S. Increase of mean size of Xystreurys rasile's shoals was observed to the south. The smallest specimens were found in coastal waters in Spring. Two groups were identified according to the abundance, one northern than 36°S, characterized with very low captures and the other southern than 37°S, characterized with higher yields. In Spring mature individuals of X. rasile migrate to shallow waters at 38°S and southwards for spawning. On the contrary, in autumn they migrate offshore for feeding and growing. First sexual maturity length was estimated in 20.0 cm for males and 21.2 cm for females, corresponding to one and two years respectively. Adult recruitment to the fishing area is around the second and third years of age. Strong evidences enforce that juveniles are not available to the fishing fleet. JOUR Spanish info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_07161069_v29_n1_p83_Fabre |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| language |
Spanish |
| orig_language_str_mv |
Spanish |
| topic |
Dynamics population Flatfish Southwest atlantic Structure Xystreurys rasile Pleuronectiformes Xystreurys rasile |
| spellingShingle |
Dynamics population Flatfish Southwest atlantic Structure Xystreurys rasile Pleuronectiformes Xystreurys rasile Fabré, N.N. Cousseau, M.B. Denegri, M.A. Dynamic population of the flatfish Xystreurys rasile, from the Southwestern Atlantic between 34° and 40°S |
| topic_facet |
Dynamics population Flatfish Southwest atlantic Structure Xystreurys rasile Pleuronectiformes Xystreurys rasile |
| description |
The present paper deals with the dynamic population of the flatfish Xystreurys rasile on the Southwest Atlantic between 34° and 40°S. Increase of mean size of Xystreurys rasile's shoals was observed to the south. The smallest specimens were found in coastal waters in Spring. Two groups were identified according to the abundance, one northern than 36°S, characterized with very low captures and the other southern than 37°S, characterized with higher yields. In Spring mature individuals of X. rasile migrate to shallow waters at 38°S and southwards for spawning. On the contrary, in autumn they migrate offshore for feeding and growing. First sexual maturity length was estimated in 20.0 cm for males and 21.2 cm for females, corresponding to one and two years respectively. Adult recruitment to the fishing area is around the second and third years of age. Strong evidences enforce that juveniles are not available to the fishing fleet. |
| format |
JOUR |
| author |
Fabré, N.N. Cousseau, M.B. Denegri, M.A. |
| author_facet |
Fabré, N.N. Cousseau, M.B. Denegri, M.A. |
| author_sort |
Fabré, N.N. |
| title |
Dynamic population of the flatfish Xystreurys rasile, from the Southwestern Atlantic between 34° and 40°S |
| title_short |
Dynamic population of the flatfish Xystreurys rasile, from the Southwestern Atlantic between 34° and 40°S |
| title_full |
Dynamic population of the flatfish Xystreurys rasile, from the Southwestern Atlantic between 34° and 40°S |
| title_fullStr |
Dynamic population of the flatfish Xystreurys rasile, from the Southwestern Atlantic between 34° and 40°S |
| title_full_unstemmed |
Dynamic population of the flatfish Xystreurys rasile, from the Southwestern Atlantic between 34° and 40°S |
| title_sort |
dynamic population of the flatfish xystreurys rasile, from the southwestern atlantic between 34° and 40°s |
| url |
http://hdl.handle.net/20.500.12110/paper_07161069_v29_n1_p83_Fabre |
| work_keys_str_mv |
AT fabrenn dynamicpopulationoftheflatfishxystreurysrasilefromthesouthwesternatlanticbetween34and40s AT cousseaumb dynamicpopulationoftheflatfishxystreurysrasilefromthesouthwesternatlanticbetween34and40s AT denegrima dynamicpopulationoftheflatfishxystreurysrasilefromthesouthwesternatlanticbetween34and40s |
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