Spatial and temporal variability of Jack mackerel Trachurus murphyilarvae in Peru between 1966 –2010
Descripción del Articulo
Constant presence of Jack mackerel Trachurus murphyilarvae in the Peruvian sea between 1966 and 2010 was confirmed by an analysis of their spatial and temporal variability. In general, there is a slight positive trend in abundance of Jack mackerelT. murphyilarvae, with noticeable changes in their sp...
| Autores: | , |
|---|---|
| Formato: | artículo |
| Fecha de Publicación: | 2013 |
| Institución: | Universidad Nacional Mayor de San Marcos |
| Repositorio: | Revista UNMSM - Revista Peruana de Biología |
| Lenguaje: | español |
| OAI Identifier: | oai:ojs.csi.unmsm:article/2623 |
| Enlace del recurso: | https://revistasinvestigacion.unmsm.edu.pe/index.php/rpb/article/view/2623 |
| Nivel de acceso: | acceso abierto |
| Materia: | larvae Jack mackerel larval distribution Peruvian sea pelagic Peruvian fishery larvas jurel distribución de larvas mar peruano recursos pelágicos pesquería peruana |
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Revista UNMSM - Revista Peruana de Biología |
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Spatial and temporal variability of Jack mackerel Trachurus murphyilarvae in Peru between 1966 –2010Variabilidad espacial y temporal de larvas de jurel Trachurus murphyien el Perú entre 1966 –2010Ayón, PatriciaCorrea, JonathanlarvaeJack mackerellarval distributionPeruvian seapelagicPeruvian fisherylarvasjureldistribución de larvasmar peruanorecursos pelágicospesquería peruanaConstant presence of Jack mackerel Trachurus murphyilarvae in the Peruvian sea between 1966 and 2010 was confirmed by an analysis of their spatial and temporal variability. In general, there is a slight positive trend in abundance of Jack mackerelT. murphyilarvae, with noticeable changes in their spatial distribution and high interannual variability. High abundance of larvae is observed in some years, which are usually followed by a longer sequence of poor abundance years. Yearly averages varied between 3 and 79 larvae/m 2 . The spatial distribution of average larvae density showed three notorious periods along time: the first between 1970 and 1979 with higher larvae densities south of 14°S; the second between 1980 and 1999 with the higher densities to the north of 14°S; and the third between 2000 and 2010 with higher densities south of 18°S. The displacement of the centers of gravity of the spatial distribution marked three noticeable periods: between 1966 and 1978 were more coastal, south of 14°S; between 1979 and 1994 more oceanic and north of 14°S; and between 1995 and 2010 which were at an intermediate position. The relationship of larvae density with oceanographic variables as well as with the distribution of adult and juvenile Jack mackerel T. murphyiare discussed, stressing the observation that there is a main center of permanent spawning activity of this species in Peruvian watersEl análisis espacial y temporal de larvas de jurel Trachurus murphyien el mar peruano entre los años 1966 y 2010 confirma su presencia constante durante todo el periodo estudiado. En general, en este periodo la abundancia de larvas de jurel T. murphyimuestra una tendencia ligeramente ascendente destacándose cambios en la distribución espacial y una alta variabilidad interanual, con cortos periodos de alta abundancia promedio, intercalados con periodos más prolongados y de baja abundancia. El promedio anual estimado varió entre 3 y 79 larvas/ m2 . La distribución espacial presentó tres periodos importantes: uno con mayores densidades de larvas al sur de los 14°S, entre 1970 y 1979; cambió hacia el norte de esta latitud, entre 1980 y 1999; y otro de mayor densidad al sur de los 18°S, en el último periodo 2000 – 2010. Los centros de gravedad de la distribución de larvas presentaron tres periodos muy notorios: fueron más costeros hacia el sur de los 14°S, entre 1966 y1978; más oceánicos y al norte de los 14°S, entre 1979 y 1994; y con una posición intermedia entre 1995 – 2010. Se discute la relación entre la distribución de las larvas con las variables oceanográficas y la distribución de T. murphyiadultos y juveniles, además se destaca que el mar del Perú es un centro principal y permanente de actividad reproductiva de esta especie.Universidad Nacional Mayor de San Marcos, Facultad de Ciencias Biológicas2013-04-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revistasinvestigacion.unmsm.edu.pe/index.php/rpb/article/view/262310.15381/rpb.v20i1.2623Revista Peruana de Biología; Vol 20 No 1 (2013); 083-086Revista Peruana de Biología; Vol. 20 Núm. 1 (2013); 083-0861727-99331561-0837reponame:Revista UNMSM - Revista Peruana de Biologíainstname:Universidad Nacional Mayor de San Marcosinstacron:UNMSMspahttps://revistasinvestigacion.unmsm.edu.pe/index.php/rpb/article/view/2623/2296Derechos de autor 2013 Patricia Ayón, Jonathan Correahttp://creativecommons.org/licenses/by-nc-sa/4.0info:eu-repo/semantics/openAccess2021-06-01T17:48:02Zmail@mail.com - |
| dc.title.none.fl_str_mv |
Spatial and temporal variability of Jack mackerel Trachurus murphyilarvae in Peru between 1966 –2010 Variabilidad espacial y temporal de larvas de jurel Trachurus murphyien el Perú entre 1966 –2010 |
| title |
Spatial and temporal variability of Jack mackerel Trachurus murphyilarvae in Peru between 1966 –2010 |
| spellingShingle |
Spatial and temporal variability of Jack mackerel Trachurus murphyilarvae in Peru between 1966 –2010 Ayón, Patricia larvae Jack mackerel larval distribution Peruvian sea pelagic Peruvian fishery larvas jurel distribución de larvas mar peruano recursos pelágicos pesquería peruana |
| title_short |
Spatial and temporal variability of Jack mackerel Trachurus murphyilarvae in Peru between 1966 –2010 |
| title_full |
Spatial and temporal variability of Jack mackerel Trachurus murphyilarvae in Peru between 1966 –2010 |
| title_fullStr |
Spatial and temporal variability of Jack mackerel Trachurus murphyilarvae in Peru between 1966 –2010 |
| title_full_unstemmed |
Spatial and temporal variability of Jack mackerel Trachurus murphyilarvae in Peru between 1966 –2010 |
| title_sort |
Spatial and temporal variability of Jack mackerel Trachurus murphyilarvae in Peru between 1966 –2010 |
| dc.creator.none.fl_str_mv |
Ayón, Patricia Correa, Jonathan |
| author |
Ayón, Patricia |
| author_facet |
Ayón, Patricia Correa, Jonathan |
| author_role |
author |
| author2 |
Correa, Jonathan |
| author2_role |
author |
| dc.subject.none.fl_str_mv |
larvae Jack mackerel larval distribution Peruvian sea pelagic Peruvian fishery larvas jurel distribución de larvas mar peruano recursos pelágicos pesquería peruana |
| topic |
larvae Jack mackerel larval distribution Peruvian sea pelagic Peruvian fishery larvas jurel distribución de larvas mar peruano recursos pelágicos pesquería peruana |
| dc.description.none.fl_txt_mv |
Constant presence of Jack mackerel Trachurus murphyilarvae in the Peruvian sea between 1966 and 2010 was confirmed by an analysis of their spatial and temporal variability. In general, there is a slight positive trend in abundance of Jack mackerelT. murphyilarvae, with noticeable changes in their spatial distribution and high interannual variability. High abundance of larvae is observed in some years, which are usually followed by a longer sequence of poor abundance years. Yearly averages varied between 3 and 79 larvae/m 2 . The spatial distribution of average larvae density showed three notorious periods along time: the first between 1970 and 1979 with higher larvae densities south of 14°S; the second between 1980 and 1999 with the higher densities to the north of 14°S; and the third between 2000 and 2010 with higher densities south of 18°S. The displacement of the centers of gravity of the spatial distribution marked three noticeable periods: between 1966 and 1978 were more coastal, south of 14°S; between 1979 and 1994 more oceanic and north of 14°S; and between 1995 and 2010 which were at an intermediate position. The relationship of larvae density with oceanographic variables as well as with the distribution of adult and juvenile Jack mackerel T. murphyiare discussed, stressing the observation that there is a main center of permanent spawning activity of this species in Peruvian waters El análisis espacial y temporal de larvas de jurel Trachurus murphyien el mar peruano entre los años 1966 y 2010 confirma su presencia constante durante todo el periodo estudiado. En general, en este periodo la abundancia de larvas de jurel T. murphyimuestra una tendencia ligeramente ascendente destacándose cambios en la distribución espacial y una alta variabilidad interanual, con cortos periodos de alta abundancia promedio, intercalados con periodos más prolongados y de baja abundancia. El promedio anual estimado varió entre 3 y 79 larvas/ m2 . La distribución espacial presentó tres periodos importantes: uno con mayores densidades de larvas al sur de los 14°S, entre 1970 y 1979; cambió hacia el norte de esta latitud, entre 1980 y 1999; y otro de mayor densidad al sur de los 18°S, en el último periodo 2000 – 2010. Los centros de gravedad de la distribución de larvas presentaron tres periodos muy notorios: fueron más costeros hacia el sur de los 14°S, entre 1966 y1978; más oceánicos y al norte de los 14°S, entre 1979 y 1994; y con una posición intermedia entre 1995 – 2010. Se discute la relación entre la distribución de las larvas con las variables oceanográficas y la distribución de T. murphyiadultos y juveniles, además se destaca que el mar del Perú es un centro principal y permanente de actividad reproductiva de esta especie. |
| description |
Constant presence of Jack mackerel Trachurus murphyilarvae in the Peruvian sea between 1966 and 2010 was confirmed by an analysis of their spatial and temporal variability. In general, there is a slight positive trend in abundance of Jack mackerelT. murphyilarvae, with noticeable changes in their spatial distribution and high interannual variability. High abundance of larvae is observed in some years, which are usually followed by a longer sequence of poor abundance years. Yearly averages varied between 3 and 79 larvae/m 2 . The spatial distribution of average larvae density showed three notorious periods along time: the first between 1970 and 1979 with higher larvae densities south of 14°S; the second between 1980 and 1999 with the higher densities to the north of 14°S; and the third between 2000 and 2010 with higher densities south of 18°S. The displacement of the centers of gravity of the spatial distribution marked three noticeable periods: between 1966 and 1978 were more coastal, south of 14°S; between 1979 and 1994 more oceanic and north of 14°S; and between 1995 and 2010 which were at an intermediate position. The relationship of larvae density with oceanographic variables as well as with the distribution of adult and juvenile Jack mackerel T. murphyiare discussed, stressing the observation that there is a main center of permanent spawning activity of this species in Peruvian waters |
| publishDate |
2013 |
| dc.date.none.fl_str_mv |
2013-04-15 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
https://revistasinvestigacion.unmsm.edu.pe/index.php/rpb/article/view/2623 10.15381/rpb.v20i1.2623 |
| url |
https://revistasinvestigacion.unmsm.edu.pe/index.php/rpb/article/view/2623 |
| identifier_str_mv |
10.15381/rpb.v20i1.2623 |
| dc.language.none.fl_str_mv |
spa |
| language |
spa |
| dc.relation.none.fl_str_mv |
https://revistasinvestigacion.unmsm.edu.pe/index.php/rpb/article/view/2623/2296 |
| dc.rights.none.fl_str_mv |
Derechos de autor 2013 Patricia Ayón, Jonathan Correa http://creativecommons.org/licenses/by-nc-sa/4.0 info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
Derechos de autor 2013 Patricia Ayón, Jonathan Correa http://creativecommons.org/licenses/by-nc-sa/4.0 |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
application/pdf |
| dc.publisher.none.fl_str_mv |
Universidad Nacional Mayor de San Marcos, Facultad de Ciencias Biológicas |
| publisher.none.fl_str_mv |
Universidad Nacional Mayor de San Marcos, Facultad de Ciencias Biológicas |
| dc.source.none.fl_str_mv |
Revista Peruana de Biología; Vol 20 No 1 (2013); 083-086 Revista Peruana de Biología; Vol. 20 Núm. 1 (2013); 083-086 1727-9933 1561-0837 reponame:Revista UNMSM - Revista Peruana de Biología instname:Universidad Nacional Mayor de San Marcos instacron:UNMSM |
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Revista UNMSM - Revista Peruana de Biología |
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Revista UNMSM - Revista Peruana de Biología |
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Universidad Nacional Mayor de San Marcos |
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UNMSM |
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UNMSM |
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mail@mail.com |
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1701387829681061888 |
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13.924177 |
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La información contenida en este registro es de entera responsabilidad de la institución que gestiona el repositorio institucional donde esta contenido este documento o set de datos. El CONCYTEC no se hace responsable por los contenidos (publicaciones y/o datos) accesibles a través del Repositorio Nacional Digital de Ciencia, Tecnología e Innovación de Acceso Abierto (ALICIA).