Effect of the artisanal shrimp fishery on the ichthyofauna in the coastal lagoon of Santa María la Reforma, southeastern Gulf of California

Amezcua, Felipe; Madrid-Vera, Juan; Aguirre‐Villaseñor, Hugo

doi:10.7773/cm.v32i12.1025

Cited by 34 publications

(41 citation statements)

References 10 publications

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“…Considering the selectivity of this fishing gear, these results might indicate that the gear removes the juvenile fish that start to recruit to the adult stock (MoralesNin, 1994). Data on maturity for these species was not available, however from previous studies it is known that S. brevortii reaches maturity at 12 cm (Amezcua et al, 2006). Considering that this is the smallest species of the four analyzed, it could be said that at a length of 10 cm all the fish are juveniles, therefore the commercial shrimp-trawl fishery removes fish from recruits to adults.…”

Section: Discussionmentioning

confidence: 98%

An assessment approach to estimate biomass of fish communities from bycatch data in a tropical shrimp-trawl fishery

Madrid-Vera¹,

Amezcua

Morales-Bojórquez³

2007

Fisheries Research

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Section: Discussionmentioning

confidence: 98%

An assessment approach to estimate biomass of fish communities from bycatch data in a tropical shrimp-trawl fishery

Madrid-Vera¹,

Amezcua

Morales-Bojórquez³

2007

Fisheries Research

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“…Además, esta especie es capturada incidentalmente en la pesquería de camarón, tanto artesanal como industrial (Amezcua et al, 2006;Madrid et al, 2007).…”

Section: Introductionunclassified

Biologia reproductiva del bagre cominate Occidentarius platypogon (Pisces: Ariidae) en el sureste del golfo de California

Amezcua

Muro-Torres

2012

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RESUMEN.En el sureste del golfo de California, el bagre cominate presenta gran abundancia y es explotado comercialmente. Sin embargo, estudios sobre su biología son escasos y no existen normas que regulen su explotación en México. En este trabajo se describe la biología reproductiva de Occidentarius platypogon. Se capturaron 480 organismos con redes agalleras entre octubre 2008 y diciembre 2009. El estado de madurez gonadal se determinó macroscópicamente. Esta especie tiene una época de desove de mayo a agosto con un desarrollo sincrónico en dos lotes. La fecundidad media fue de 37 ovocitos maduros. La baja fecundidad se debe a que esta especie presenta cuidado parental con incubación oral por parte de los machos, lo cual reduce su mortalidad natural en las primeras etapas de desarrollo. La talla de primera madurez fue de 37,6 cm y la longitud estimada de primera captura de la pesquería artesanal con redes de enmalle fue de 23,4 cm, lo que indica la captura de organismos que aún no alcanzan su talla reproductiva. La mayoría de los organismos capturados fueron machos incubando, por lo tanto, podría ser alta la mortalidad por pesca de juveniles. Palabras clave: fecundidad, estadios gonadales, longitud a la madurez, índices de condición, talla de primera captura, golfo de California, México.Reproductive biology of the cominate sea catfish Occidentarius platypogon (Pisces: Ariidae) from the southeastern Gulf of California ABSTRACT. The cominate sea catfish from the southeastern Gulf of California is an important species that is commercially exploited. However, studies on biology of this species are scarce; therefore, harvest regulations do not exist for this species in Mexico. The aim of this work was to describe reproductive biology of Occidentarius platypogon. Gillnet samples were carried out from October 2008 to December 2009. In total, 480 fish were dissected; gender sex and gonad maturity stage were determined macroscopically. Results indicated that the spawning season runs from May to August and generally with synchronic gonad development. Fecundity of the chihuil sea catfish was 37, which is low because this species shows parental care via oral incubation of fry, reducing mortality. Estimated length at first maturity is 37.6 cm total length (TL). Average length at first catch from the artisanal gillnet fishery is 23.4 cm TL, indicating that this fishery is harvesting fish that have yet to have had a single reproductive event. A large number of captured fish consisted of males that were incubating fry; thus, likely causing large fry mortality. Keywords: fecundity, gonadic stages, length at maturity, condition indices, length-at-first catch, Gulf of California, Mexico. ___________________Corresponding author: Felipe Amezcua (famezcua@ola.icmyl.unam.mx) INTRODUCCIÓNEn América tropical y subtropical, la familia Ariidae es una de las más importantes en cuanto al número de especies y abundancia en la zona costera y estuarios.En el sureste del golfo de California, el bagre cominate o chihuil cominate (Occidentarius ...

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“…This species is of relevant interest for artisanal fishing along the Sinaloa coast (northwest of Mexico), and is also incidentally caught by industrial and artisanal shrimp fisheries (Amezcua et al 2006;Madrid-Vera et al 2007;Amezcua & Muro-Torres 2012). In spite of abundance and economic importance of this species, there are few studies that describe their biology, ecology and genetics.…”

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confidence: 99%

Complete mitochondrial genome of Cominate sea catfishOccidentarius platypogon(Siluriformes: Ariidae)

Llera-Herrera

Ramírez‐Pérez

Saavedra‐Sotelo

2017

Mitochondrial DNA Part B

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The mitochondrion genome of Occidentarius platypogon was assembled from Illumina short reads, and consisted of 16,714 base pairs, with 13 protein-coding, two ribosomal RNAs (rRNAs), and 22 transfer RNA (tRNA) genes. Base composition is 30.7% A, 26.4% T, 28.5% C, and 14.4% G, and 42.9% GC content. Two start codon (ATG and GTG) and seven stop codon (TAA, ACT, CCT, TTA, CAT, AAT, and TAG) patterns were found in protein-coding genes. Control region presented the highest A + T (64%) and lowest G + C content (35.7%) among all mitochondrial regions.

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Effect of the artisanal shrimp fishery on the ichthyofauna in the coastal lagoon of Santa María la Reforma, southeastern Gulf of California

Cited by 34 publications

References 10 publications

An assessment approach to estimate biomass of fish communities from bycatch data in a tropical shrimp-trawl fishery

An assessment approach to estimate biomass of fish communities from bycatch data in a tropical shrimp-trawl fishery

Biologia reproductiva del bagre cominate Occidentarius platypogon (Pisces: Ariidae) en el sureste del golfo de California

Complete mitochondrial genome of Cominate sea catfishOccidentarius platypogon(Siluriformes: Ariidae)

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