Growth and mortality of the fish Citharichthys xanthostigma (Pleuronectiformes: Paralichthyidae) off the Western coast of Baja California, México
Longfin sanddab (Citharichthys xanthostigma) represents a very important fishery resource in Southern and Baja California but are not very well known. The purpose of this study is to provide information on the growth and mortality of longfin sanddab population in the Mexican Pacific Ocean at Baja Ca...
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| Format: | Article |
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Universidad de Costa Rica
2010-06-01
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| Series: | Revista de Biología Tropical |
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| Online Access: | http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442010000200013&lng=en&tlng=en |
| _version_ | 1827199776649641984 |
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| author | Marco A Martínez-Muñoz Armando A Ortega-Salas |
| author_facet | Marco A Martínez-Muñoz Armando A Ortega-Salas |
| author_sort | Marco A Martínez-Muñoz |
| collection | DOAJ |
| description | Longfin sanddab (Citharichthys xanthostigma) represents a very important fishery resource in Southern and Baja California but are not very well known. The purpose of this study is to provide information on the growth and mortality of longfin sanddab population in the Mexican Pacific Ocean at Baja California, México. Data on growth were obtained for longfin sanddab collected with otter trawls during six cruises off the Western coast of Baja California. A total of 1 017 longfin sanddab were caught over the sampling period, and from 860 specimens, the male to female ratio was 1:1.8. The relationship between total weight (W) and standard length (SL) is described: W=0.00000743 SL3.196 for females and W=0.00000764 SL3.193 for males. Age groups were estimated from length frequency data, and von Bertalanffy annual growth parameters for all fish data combined were the following: L∞=289.2mm SL, k=0.20, t0=-0.73; for males, they were L∞=265.9mm SL, k=0.21, t0=-0.68, and for females, L∞=293.6mm SL, k=0.23, t0=-0.35. Longfin sanddab caught during this study reached a maximum age of 10 years, and at that age, males attained smaller sizes than females. The age groups had a total mortality (Z) rate of 0.82 year-1, a fishing mortality (F) of 0.52 year-1, and a natural mortality (M) of 0.3 year-1. Although the longfin sanddab is not a target species of commercial fisheries, it suffers high mortality as part of the bycatch in the shrimp fishery. Rev. Biol. Trop. 58 (2): 689-705. Epub 2010 June 02. |
| first_indexed | 2024-03-12T10:33:36Z |
| format | Article |
| id | doaj.art-5323a700e59e48599423163d62cc4343 |
| institution | Directory Open Access Journal |
| issn | 0034-7744 |
| language | English |
| last_indexed | 2025-03-21T10:38:17Z |
| publishDate | 2010-06-01 |
| publisher | Universidad de Costa Rica |
| record_format | Article |
| series | Revista de Biología Tropical |
| spelling | doaj.art-5323a700e59e48599423163d62cc43432024-07-02T21:36:14ZengUniversidad de Costa RicaRevista de Biología Tropical0034-77442010-06-01582689705S0034-77442010000200013Growth and mortality of the fish Citharichthys xanthostigma (Pleuronectiformes: Paralichthyidae) off the Western coast of Baja California, MéxicoMarco A Martínez-Muñoz0Armando A Ortega-Salas1Unidad Profesional Interdisciplinaria de Ingeniería y Ciencias Sociales y AdministrativasUniversidad Nacional Autónoma de MéxicoLongfin sanddab (Citharichthys xanthostigma) represents a very important fishery resource in Southern and Baja California but are not very well known. The purpose of this study is to provide information on the growth and mortality of longfin sanddab population in the Mexican Pacific Ocean at Baja California, México. Data on growth were obtained for longfin sanddab collected with otter trawls during six cruises off the Western coast of Baja California. A total of 1 017 longfin sanddab were caught over the sampling period, and from 860 specimens, the male to female ratio was 1:1.8. The relationship between total weight (W) and standard length (SL) is described: W=0.00000743 SL3.196 for females and W=0.00000764 SL3.193 for males. Age groups were estimated from length frequency data, and von Bertalanffy annual growth parameters for all fish data combined were the following: L∞=289.2mm SL, k=0.20, t0=-0.73; for males, they were L∞=265.9mm SL, k=0.21, t0=-0.68, and for females, L∞=293.6mm SL, k=0.23, t0=-0.35. Longfin sanddab caught during this study reached a maximum age of 10 years, and at that age, males attained smaller sizes than females. The age groups had a total mortality (Z) rate of 0.82 year-1, a fishing mortality (F) of 0.52 year-1, and a natural mortality (M) of 0.3 year-1. Although the longfin sanddab is not a target species of commercial fisheries, it suffers high mortality as part of the bycatch in the shrimp fishery. Rev. Biol. Trop. 58 (2): 689-705. Epub 2010 June 02.http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442010000200013&lng=en&tlng=enBaja CalifornialenguadospleuronectiformesC. xanthostigmacrecimientomortalidadcaptura incidental camarónBaja California |
| spellingShingle | Marco A Martínez-Muñoz Armando A Ortega-Salas Growth and mortality of the fish Citharichthys xanthostigma (Pleuronectiformes: Paralichthyidae) off the Western coast of Baja California, México Revista de Biología Tropical Baja California lenguados pleuronectiformes C. xanthostigma crecimiento mortalidad captura incidental camarón Baja California |
| title | Growth and mortality of the fish Citharichthys xanthostigma (Pleuronectiformes: Paralichthyidae) off the Western coast of Baja California, México |
| title_full | Growth and mortality of the fish Citharichthys xanthostigma (Pleuronectiformes: Paralichthyidae) off the Western coast of Baja California, México |
| title_fullStr | Growth and mortality of the fish Citharichthys xanthostigma (Pleuronectiformes: Paralichthyidae) off the Western coast of Baja California, México |
| title_full_unstemmed | Growth and mortality of the fish Citharichthys xanthostigma (Pleuronectiformes: Paralichthyidae) off the Western coast of Baja California, México |
| title_short | Growth and mortality of the fish Citharichthys xanthostigma (Pleuronectiformes: Paralichthyidae) off the Western coast of Baja California, México |
| title_sort | growth and mortality of the fish citharichthys xanthostigma pleuronectiformes paralichthyidae off the western coast of baja california mexico |
| topic | Baja California lenguados pleuronectiformes C. xanthostigma crecimiento mortalidad captura incidental camarón Baja California |
| url | http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442010000200013&lng=en&tlng=en |
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