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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Vicerractoría Investigación
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 |
| _version_ | 1797764766773542912 |
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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.<br>Se presenta información sobre el crecimiento y mortalidad de la población del C. xanthostigma (lenguado alón) en el Pacífico Mexicano de Baja California, México. Datos sobre su crecimiento fueron obtenidos de peces capturados con red de arrastre durante seis cruceros en la costa Oeste de Baja California, México. Se capturaron 1 017 peces en este periodo. La relación machos:hembras de 860 ejemplares fue de 1:1.2. La relación peso total (W) y longitud estándar (SL) se estimó para hembras: W=0.00000743 SL 3.196 y para machos: W=0.00000764 SL 3.193. La edad de los grupos se calculó con datos de frecuencia por longitud, el crecimiento de von Bertalanffy global fue: L∞=289.2mm SL, k=0.20, t0= -0.73; para los machos: L∞=265.9 mm SL, k=0.21, t0= -0.68 y para las hembras: L∞=293.6mm SL, k=0.23, t0=-0.35, anualmente. La captura de C. xanthostigma durante este estudio alcanzó una edad máxima de 10 años. Los machos alcanzan tallas menores que las hembras a la misma edad. Los grupos de edad tuvieron una tasa de mortalidad total (Z) de 0.82 por año, una mortalidad por pesca (F) de 0.52 por año y mortalidad natural (M) de 0.3 por año. Aunque el C. xanthostigma no es una especie objetivo (comercial), sufre una alta mortalidad indirecta durante la pesca del camarón. |
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| format | Article |
| id | doaj.art-091538494b0e413188e09a5c6f0e6095 |
| institution | Directory Open Access Journal |
| issn | 0034-7744 2215-2075 |
| language | English |
| last_indexed | 2024-03-12T20:00:29Z |
| publishDate | 2010-06-01 |
| publisher | Vicerractoría Investigación |
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| series | Revista de Biología Tropical |
| spelling | doaj.art-091538494b0e413188e09a5c6f0e60952023-08-02T02:25:56ZengVicerractoría InvestigaciónRevista de Biología Tropical0034-77442215-20752010-06-01582689705Growth and mortality of the fish Citharichthys xanthostigma (Pleuronectiformes: Paralichthyidae) off the Western coast of Baja California, MéxicoMarco A Martínez-MuñozArmando A Ortega-SalasLongfin 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.<br>Se presenta información sobre el crecimiento y mortalidad de la población del C. xanthostigma (lenguado alón) en el Pacífico Mexicano de Baja California, México. Datos sobre su crecimiento fueron obtenidos de peces capturados con red de arrastre durante seis cruceros en la costa Oeste de Baja California, México. Se capturaron 1 017 peces en este periodo. La relación machos:hembras de 860 ejemplares fue de 1:1.2. La relación peso total (W) y longitud estándar (SL) se estimó para hembras: W=0.00000743 SL 3.196 y para machos: W=0.00000764 SL 3.193. La edad de los grupos se calculó con datos de frecuencia por longitud, el crecimiento de von Bertalanffy global fue: L∞=289.2mm SL, k=0.20, t0= -0.73; para los machos: L∞=265.9 mm SL, k=0.21, t0= -0.68 y para las hembras: L∞=293.6mm SL, k=0.23, t0=-0.35, anualmente. La captura de C. xanthostigma durante este estudio alcanzó una edad máxima de 10 años. Los machos alcanzan tallas menores que las hembras a la misma edad. Los grupos de edad tuvieron una tasa de mortalidad total (Z) de 0.82 por año, una mortalidad por pesca (F) de 0.52 por año y mortalidad natural (M) de 0.3 por año. Aunque el C. xanthostigma no es una especie objetivo (comercial), sufre una alta mortalidad indirecta durante la pesca del camarón.http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442010000200013Baja CalifornialenguadospleuronectiformesC. xanthostigmacrecimientomortalidadcaptura incidental camarónBaja CaliforniaflatfishPleuronectiformesC. xanthostigmagrowthmortalitybycatch shrimp |
| 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 flatfish Pleuronectiformes C. xanthostigma growth mortality bycatch shrimp |
| 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 flatfish Pleuronectiformes C. xanthostigma growth mortality bycatch shrimp |
| url | http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442010000200013 |
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