Size, Age, and Spatial-Temporal Distribution of Shortfin Mako in the Mexican Pacific Ocean
Abstract Basic population parameters such as age, size, and distribution have been poorly evaluated for the Shortfin Mako Isurus oxyrinchus in the Mexican Pacific Ocean. According to data collected by scientific observers on board medium-size fishing vessels during the period of 2006–2013, size as TL wa...
| Autores principales: | , , , , , , |
|---|---|
| Formato: | Artículo |
| Lenguaje: | inglés |
| Publicado: |
2018
|
| Acceso en línea: | http://eprints.uanl.mx/16120/1/90.pdf |
| _version_ | 1824414506094166016 |
|---|---|
| author | Carreón Zapiain, María Teresa Favela Lara, Susana González Pérez, Jaime Otilio Tavares, R. Leija Tristán, Antonio Mercado Hernández, Roberto Compeán Jiménez, G. A. |
| author_facet | Carreón Zapiain, María Teresa Favela Lara, Susana González Pérez, Jaime Otilio Tavares, R. Leija Tristán, Antonio Mercado Hernández, Roberto Compeán Jiménez, G. A. |
| author_sort | Carreón Zapiain, María Teresa |
| collection | Repositorio Institucional |
| description | Abstract Basic population parameters such as age, size, and distribution have been poorly evaluated for the Shortfin Mako Isurus oxyrinchus in the Mexican Pacific Ocean. According to data collected by scientific observers on board medium-size fishing vessels during the period of 2006–2013, size as TL was obtained for 5,740 individual sharks. The range of TL was 70–362 cm for females and 71–296 cm for males. Weight (W), measured randomly from 1,409 individuals, ranged from 2 to 90 kg for females and from 2 to 80 kg for males. The weight-to-TL ratio was best fitted by the equation W = 4 × 10−5(TL)2.59 (r2 = 0.6532). No sex-specific difference was found in the weight-to-TL relationship between males and females, nor in W or TL separately. By using the inverse von Bertalanffy equation and parameters described by other authors for the same study area, we determined the age range for individuals captured on the basis of their TL. The age ranged from 0 to 39 years in females and from 0 to 21 years in males. Using a logistic model, the mean length at sexual maturity was obtained for 2,532 males (TL = 190 cm). The quarterly distribution of young of the year and 1-year-old juveniles showed that there is a tendency for these sharks to move |
| format | Article |
| id | eprints-16120 |
| institution | UANL |
| language | English |
| publishDate | 2018 |
| record_format | eprints |
| spelling | eprints-161202021-03-26T02:31:19Z http://eprints.uanl.mx/16120/ Size, Age, and Spatial-Temporal Distribution of Shortfin Mako in the Mexican Pacific Ocean Carreón Zapiain, María Teresa Favela Lara, Susana González Pérez, Jaime Otilio Tavares, R. Leija Tristán, Antonio Mercado Hernández, Roberto Compeán Jiménez, G. A. Abstract Basic population parameters such as age, size, and distribution have been poorly evaluated for the Shortfin Mako Isurus oxyrinchus in the Mexican Pacific Ocean. According to data collected by scientific observers on board medium-size fishing vessels during the period of 2006–2013, size as TL was obtained for 5,740 individual sharks. The range of TL was 70–362 cm for females and 71–296 cm for males. Weight (W), measured randomly from 1,409 individuals, ranged from 2 to 90 kg for females and from 2 to 80 kg for males. The weight-to-TL ratio was best fitted by the equation W = 4 × 10−5(TL)2.59 (r2 = 0.6532). No sex-specific difference was found in the weight-to-TL relationship between males and females, nor in W or TL separately. By using the inverse von Bertalanffy equation and parameters described by other authors for the same study area, we determined the age range for individuals captured on the basis of their TL. The age ranged from 0 to 39 years in females and from 0 to 21 years in males. Using a logistic model, the mean length at sexual maturity was obtained for 2,532 males (TL = 190 cm). The quarterly distribution of young of the year and 1-year-old juveniles showed that there is a tendency for these sharks to move 2018 Article PeerReviewed text en cc_by_nc_nd http://eprints.uanl.mx/16120/1/90.pdf http://eprints.uanl.mx/16120/1.haspreviewThumbnailVersion/90.pdf Carreón Zapiain, María Teresa y Favela Lara, Susana y González Pérez, Jaime Otilio y Tavares, R. y Leija Tristán, Antonio y Mercado Hernández, Roberto y Compeán Jiménez, G. A. (2018) Size, Age, and Spatial-Temporal Distribution of Shortfin Mako in the Mexican Pacific Ocean. Marine and Coastal Fisheries, 10 (4). pp. 402-410. ISSN 19425120 http://doi.org/10.1002/mcf2.10029 doi:10.1002/mcf2.10029 |
| spellingShingle | Carreón Zapiain, María Teresa Favela Lara, Susana González Pérez, Jaime Otilio Tavares, R. Leija Tristán, Antonio Mercado Hernández, Roberto Compeán Jiménez, G. A. Size, Age, and Spatial-Temporal Distribution of Shortfin Mako in the Mexican Pacific Ocean |
| thumbnail | https://rediab.uanl.mx/themes/sandal5/images/online.png |
| title | Size, Age, and Spatial-Temporal Distribution of Shortfin Mako in the Mexican Pacific Ocean |
| title_full | Size, Age, and Spatial-Temporal Distribution of Shortfin Mako in the Mexican Pacific Ocean |
| title_fullStr | Size, Age, and Spatial-Temporal Distribution of Shortfin Mako in the Mexican Pacific Ocean |
| title_full_unstemmed | Size, Age, and Spatial-Temporal Distribution of Shortfin Mako in the Mexican Pacific Ocean |
| title_short | Size, Age, and Spatial-Temporal Distribution of Shortfin Mako in the Mexican Pacific Ocean |
| title_sort | size age and spatial temporal distribution of shortfin mako in the mexican pacific ocean |
| url | http://eprints.uanl.mx/16120/1/90.pdf |
| work_keys_str_mv | AT carreonzapiainmariateresa sizeageandspatialtemporaldistributionofshortfinmakointhemexicanpacificocean AT favelalarasusana sizeageandspatialtemporaldistributionofshortfinmakointhemexicanpacificocean AT gonzalezperezjaimeotilio sizeageandspatialtemporaldistributionofshortfinmakointhemexicanpacificocean AT tavaresr sizeageandspatialtemporaldistributionofshortfinmakointhemexicanpacificocean AT leijatristanantonio sizeageandspatialtemporaldistributionofshortfinmakointhemexicanpacificocean AT mercadohernandezroberto sizeageandspatialtemporaldistributionofshortfinmakointhemexicanpacificocean AT compeanjimenezga sizeageandspatialtemporaldistributionofshortfinmakointhemexicanpacificocean |