Life history of the Pomadasys incisus (Osteichthyes: Haemulidae) of the Canarian Archipelago
Pomadasys incisus is one of the most abundant coastal demersal species around the Canary Islands. It is a gonochoric species with similar biological characteristic in males and females. The adult sex ratio is not significantly different from 1:1, and the mean size of males and females is similar. It...
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| Format: | Article |
| Language: | English |
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Consejo Superior de Investigaciones Científicas
2003-06-01
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| Series: | Scientia Marina |
| Subjects: | |
| Online Access: | http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/472 |
| _version_ | 1818599084283396096 |
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| author | José G. Pajuelo José M. Lorenzo Muriel Gregoire Rosa Domínguez-Seoane |
| author_facet | José G. Pajuelo José M. Lorenzo Muriel Gregoire Rosa Domínguez-Seoane |
| author_sort | José G. Pajuelo |
| collection | DOAJ |
| description | Pomadasys incisus is one of the most abundant coastal demersal species around the Canary Islands. It is a gonochoric species with similar biological characteristic in males and females. The adult sex ratio is not significantly different from 1:1, and the mean size of males and females is similar. It reaches first maturity at the end of the second year of life (183 mm). Spawning takes place throughout the year. Growth analysis reveals that the species is fast-growing and relatively short-lived (7 years). Length at age is well described by the von Bertalanffy growth model. Individuals grow quickly in their immature first year, attaining approximately 45% of their maximum length. After one year, the annual growth rate drops rapidly. The direct effects of fishing result in changes in abundance, with an 80% reduction from the unexploited equilibrium level. Recruitment into the commercial fisheries occurs before size at sexual maturity, resulting in all spawners being accessible using the current fishing pattern. The length at first capture (168 mm) is less than the length at maturity; 45% of the total catch are smaller than this, indicating a danger of recruitment-overfishing. |
| first_indexed | 2024-12-16T12:13:58Z |
| format | Article |
| id | doaj.art-6a6227b6d8d04fd4adbcf7daf9a7c7cb |
| institution | Directory Open Access Journal |
| issn | 0214-8358 1886-8134 |
| language | English |
| last_indexed | 2024-12-16T12:13:58Z |
| publishDate | 2003-06-01 |
| publisher | Consejo Superior de Investigaciones Científicas |
| record_format | Article |
| series | Scientia Marina |
| spelling | doaj.art-6a6227b6d8d04fd4adbcf7daf9a7c7cb2022-12-21T22:32:09ZengConsejo Superior de Investigaciones CientíficasScientia Marina0214-83581886-81342003-06-0167224124810.3989/scimar.2003.67n2241467Life history of the Pomadasys incisus (Osteichthyes: Haemulidae) of the Canarian ArchipelagoJosé G. Pajuelo0José M. Lorenzo1Muriel Gregoire2Rosa Domínguez-Seoane3Departamento de Biología, Universidad de Las Palmas de Gran CanariaDepartamento de Biología, Universidad de Las Palmas de Gran CanariaDepartamento de Biología, Universidad de Las Palmas de Gran CanariaDepartamento de Biología, Universidad de Las Palmas de Gran CanariaPomadasys incisus is one of the most abundant coastal demersal species around the Canary Islands. It is a gonochoric species with similar biological characteristic in males and females. The adult sex ratio is not significantly different from 1:1, and the mean size of males and females is similar. It reaches first maturity at the end of the second year of life (183 mm). Spawning takes place throughout the year. Growth analysis reveals that the species is fast-growing and relatively short-lived (7 years). Length at age is well described by the von Bertalanffy growth model. Individuals grow quickly in their immature first year, attaining approximately 45% of their maximum length. After one year, the annual growth rate drops rapidly. The direct effects of fishing result in changes in abundance, with an 80% reduction from the unexploited equilibrium level. Recruitment into the commercial fisheries occurs before size at sexual maturity, resulting in all spawners being accessible using the current fishing pattern. The length at first capture (168 mm) is less than the length at maturity; 45% of the total catch are smaller than this, indicating a danger of recruitment-overfishing.http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/472pomadasys incisusgrowthreproductionmortalityimpactdiscardcanary islands |
| spellingShingle | José G. Pajuelo José M. Lorenzo Muriel Gregoire Rosa Domínguez-Seoane Life history of the Pomadasys incisus (Osteichthyes: Haemulidae) of the Canarian Archipelago Scientia Marina pomadasys incisus growth reproduction mortality impact discard canary islands |
| title | Life history of the Pomadasys incisus (Osteichthyes: Haemulidae) of the Canarian Archipelago |
| title_full | Life history of the Pomadasys incisus (Osteichthyes: Haemulidae) of the Canarian Archipelago |
| title_fullStr | Life history of the Pomadasys incisus (Osteichthyes: Haemulidae) of the Canarian Archipelago |
| title_full_unstemmed | Life history of the Pomadasys incisus (Osteichthyes: Haemulidae) of the Canarian Archipelago |
| title_short | Life history of the Pomadasys incisus (Osteichthyes: Haemulidae) of the Canarian Archipelago |
| title_sort | life history of the pomadasys incisus osteichthyes haemulidae of the canarian archipelago |
| topic | pomadasys incisus growth reproduction mortality impact discard canary islands |
| url | http://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/472 |
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