Optimum sample length for estimating anchovy size distribution and the proportion of juveniles per fishing set for the Peruvian purse-seine fleet
The length distribution of catches represents a fundamental source of information for estimating growth and spatio-temporal dynamics of cohorts. The length distribution of caught is estimated based on samples of catched individuals. This work studies the optimum sample size of individuals at each fi...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Universidad Nacional Mayor de San Marcos
2017-04-01
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| Series: | Revista Peruana de Biología |
| Subjects: | |
| Online Access: | http://revistasinvestigacion.unmsm.edu.pe/index.php/rpb/article/view/13112 |
| _version_ | 1819267684610605056 |
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| author | Rocío Joo Erich Díaz |
| author_facet | Rocío Joo Erich Díaz |
| author_sort | Rocío Joo |
| collection | DOAJ |
| description | The length distribution of catches represents a fundamental source of information for estimating growth and spatio-temporal dynamics of cohorts. The length distribution of caught is estimated based on samples of catched individuals. This work studies the optimum sample size of individuals at each fishing set in order to obtain a representative sample of the length and the proportion of juveniles in the fishing set. For that matter, we use anchovy (Engraulis ringens) length data from different fishing sets recorded by observers at-sea from the On-board Observers Program from the Peruvian Marine Research Institute. Finally, we propose an optimum sample size for obtaining robust size and juvenile estimations. Though the application of this work corresponds to the anchovy fishery, the procedure can be applied to any fishery, either for on board or inland biometric measurements. |
| first_indexed | 2024-12-23T21:21:05Z |
| format | Article |
| id | doaj.art-b7ef66c8b1824e34bfc4a3dcc1affe6b |
| institution | Directory Open Access Journal |
| issn | 1561-0837 1727-9933 |
| language | English |
| last_indexed | 2024-12-23T21:21:05Z |
| publishDate | 2017-04-01 |
| publisher | Universidad Nacional Mayor de San Marcos |
| record_format | Article |
| series | Revista Peruana de Biología |
| spelling | doaj.art-b7ef66c8b1824e34bfc4a3dcc1affe6b2022-12-21T17:30:45ZengUniversidad Nacional Mayor de San MarcosRevista Peruana de Biología1561-08371727-99332017-04-01241596610.15381/rpb.v24i1.1311211519Optimum sample length for estimating anchovy size distribution and the proportion of juveniles per fishing set for the Peruvian purse-seine fleetRocío Joo0Erich Díaz1Instituto del Mar del Perú (IMARPE) esquina Gamarra y General Valle S/N Chucuito, Callao, Perú.Instituto del Mar del Perú (IMARPE) esquina Gamarra y General Valle S/N Chucuito, Callao, Perú.The length distribution of catches represents a fundamental source of information for estimating growth and spatio-temporal dynamics of cohorts. The length distribution of caught is estimated based on samples of catched individuals. This work studies the optimum sample size of individuals at each fishing set in order to obtain a representative sample of the length and the proportion of juveniles in the fishing set. For that matter, we use anchovy (Engraulis ringens) length data from different fishing sets recorded by observers at-sea from the On-board Observers Program from the Peruvian Marine Research Institute. Finally, we propose an optimum sample size for obtaining robust size and juvenile estimations. Though the application of this work corresponds to the anchovy fishery, the procedure can be applied to any fishery, either for on board or inland biometric measurements.http://revistasinvestigacion.unmsm.edu.pe/index.php/rpb/article/view/13112distribución de tallasproporción de juvenilestamaño de muestraobservadores a bordopesquería de anchovetaEngraulis ringens. |
| spellingShingle | Rocío Joo Erich Díaz Optimum sample length for estimating anchovy size distribution and the proportion of juveniles per fishing set for the Peruvian purse-seine fleet Revista Peruana de Biología distribución de tallas proporción de juveniles tamaño de muestra observadores a bordo pesquería de anchoveta Engraulis ringens. |
| title | Optimum sample length for estimating anchovy size distribution and the proportion of juveniles per fishing set for the Peruvian purse-seine fleet |
| title_full | Optimum sample length for estimating anchovy size distribution and the proportion of juveniles per fishing set for the Peruvian purse-seine fleet |
| title_fullStr | Optimum sample length for estimating anchovy size distribution and the proportion of juveniles per fishing set for the Peruvian purse-seine fleet |
| title_full_unstemmed | Optimum sample length for estimating anchovy size distribution and the proportion of juveniles per fishing set for the Peruvian purse-seine fleet |
| title_short | Optimum sample length for estimating anchovy size distribution and the proportion of juveniles per fishing set for the Peruvian purse-seine fleet |
| title_sort | optimum sample length for estimating anchovy size distribution and the proportion of juveniles per fishing set for the peruvian purse seine fleet |
| topic | distribución de tallas proporción de juveniles tamaño de muestra observadores a bordo pesquería de anchoveta Engraulis ringens. |
| url | http://revistasinvestigacion.unmsm.edu.pe/index.php/rpb/article/view/13112 |
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