The fishery, demographic size structure and oocyte development of dolphinfish, &lt;i&gt;Coryphaena hippurus&lt;/i&gt;, in Venezuela and adjacent waters

Arocha, Freddy; Marcano, Luis A.; Lárez, Asdrúbal; Altuve, Douglas; Alío, José

doi:10.3989/scimar.1999.63n3-4401

Cited by 14 publications

(18 citation statements)

References 5 publications

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“…El aumento en la proporción de machos con la talla, ha sido observado en otras regiones geográficas (Rose & Hassler, 1974;Massutí & Morales-Nin, 1997;Arocha et al, 1999;Oxenford, 1999;Wu, Su & Tawasaki, 2001). …”

Section: Discussionunclassified

Variabilidad en la abundancia relativa, estructura por tallas y proporción de sexos del dorado Coryphaena hippurus (Pisces: Coryphaenidae) en el Golfo de Tehuantepec, México

Alejo-Plata

Gómez

Serrano-Guzmán

2014

RBT

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For this, fishery catches information was obtained from the artisanal fleet, at six landing sites in the Gulf, and the sex ratio, fork length (FL) and the catch per unit effort (CPUE) were estimated. From all sampling sites, a total of 3 494 females, and 3 877 males were obtained, and dolphinfish size as fork length (FL) ranged from 20.5 to 152cm. Fish size ranged from 25.5 to 148cm furcal length (FL) in males, and 20.5 to 129cm FL in females. The sex ratio (males:females) was 1:1, except in April-May (1:1.5, p<0.05) and November (1:0.5, p<0.05). The sex ratio at different size classes showed a significant bias towards females at smaller sizes (<75cm FL), whereas the males were predominant in larger size classes (>100cm FL). The size structure was bimodal, with a variation in the size average; the modes were defined as the small group (FL=50-55cm) and the large size group (FL=100-110cm). The CPUE showed seasonal changes: values were high for the November-December period, and values were lower for July-August. The seasonal and inter annual variation in the abundance of dolphinfish is probably related to a pre-spawning migration in close relation to the rain-drought regime characteristic of the region, and the associated wind upwelling season of "Tehuanos" in the Gulf of Tehuantepec. Rev. Biol. Trop. 62 (2): 611-626. Epub 2014 June 01.

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Section: Discussionunclassified

Variabilidad en la abundancia relativa, estructura por tallas y proporción de sexos del dorado Coryphaena hippurus (Pisces: Coryphaenidae) en el Golfo de Tehuantepec, México

Alejo-Plata

Gómez

Serrano-Guzmán

2014

RBT

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“…3). Although Venezuela does not report dolphinfish landings, Arocha et al (1999) provide estimates of landings showing an increasing trend from 50 mt in 1990 to 607 mt in 1997.…”

Section: Trends In Landingsmentioning

confidence: 99%

“…There is a gillnet fleet in the central coastal area, and a longline fleet operating from Isla Margarita in the east. Details of these fleets and their fishing operations are provided by Arocha et al (1999). These fleets have recently begun to target dolphinfish, showing a steady increase in landings from 1991 to 1997.…”

Section: Artisanal and Small-scale Fleetsmentioning

confidence: 99%

“…Eslava and Gaertner (in press) report four large longliners and only 15 small ones, noting that the latter fleet had declined recently due to difficult economic times in Venezuela. Arocha et al(1999) report that dolphinfish have been a component of the by-catch of the longline fleet since the 1960s.…”

Section: Large-scale Commercialmentioning

confidence: 99%

“…Comprised 7% (1.4 mt), 4% (1.2 mt) and 16% (3.6 mt) of recreational catch in St. Thomas in 1983, 1984(Brandon, 1988. CFMC (1983), Appeldoorn and Myers (1993) Venezuela RC 697 1997 Arocha et al (1999). Not included in Herrera-Teran (1988), which lists species with landings down to 1 mt.…”

Section: Recreationalmentioning

confidence: 99%

See 2 more Smart Citations

Dolphinfish fisheries in the Caribbean region

Mahon¹

1999

Sci. Mar.

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Molecular identification of dolphinfish species (genus Coryphaena) using multiplex haplotype-specific PCR of mitochondrial DNA

Rocha‐Olivares

Chávez-González

2008

Ichthyol Res

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A rapid and reliable method of dolphinfish species identification was designed based on PCR amplification of diagnostic DNA fragments from the mitochondrial cytochrome b gene. It consisted in a tetraplex reaction producing a positive control amplicon and species-specific fragments in Coryphaena hippurus and C. equiselis. It was successfully tested in specimens of known identity and in nominal C. hippurus samples among which two C. equiselis were discovered. This approach has significant advantages over other molecular species identification methods and may help in determining species composition of mixed catches, and in forensic and food control applications of dolphinfish specimens or products.

show abstract

The fishery, demographic size structure and oocyte development of dolphinfish, <i>Coryphaena hippurus</i>, in Venezuela and adjacent waters

Cited by 14 publications

References 5 publications

Variabilidad en la abundancia relativa, estructura por tallas y proporción de sexos del dorado Coryphaena hippurus (Pisces: Coryphaenidae) en el Golfo de Tehuantepec, México

Variabilidad en la abundancia relativa, estructura por tallas y proporción de sexos del dorado Coryphaena hippurus (Pisces: Coryphaenidae) en el Golfo de Tehuantepec, México

Dolphinfish fisheries in the Caribbean region

Molecular identification of dolphinfish species (genus Coryphaena) using multiplex haplotype-specific PCR of mitochondrial DNA

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