The artisanal elasmobranch fishery of the Pacific coast of Baja California, Mexico

Cartamil, Daniel P.; Santana-Morales, Omar; Escobedo-Olvera, Miguel; Kacev, Dovi; Castillo-Geniz, Leonardo; Graham, John L.; Rubin, Robert Daniel; Sosa‐Nishizaki, Oscar

doi:10.1016/j.fishres.2011.01.020

Cited by 85 publications

(86 citation statements)

References 33 publications

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“…In conjunction with previous studies (Bizzarro et al 2009a, Smith et al 2009, Bizzarro et al 2009b, Bizzarro et al 2009cand Cartamil et al 2011, the results of the present study allow for the first time a comprehensive characterization of artisanal elasmobranch fisheries throughout the Mexican northwest. In this region, the Pacific coast of BCS represents one of the largest catch regions of elasmobranch artisanal fisheries.…”

Section: Survey Of Artisanal Campssupporting

confidence: 76%

“…This is a behavior that can occur due to differences in sex, body size, behavior, nutritional requirements and/or habitat selection (Klimley 1987, Magurran and Macias-Garcia 2000, Sims 2005, Wearmouth and Sims 2008. R. productus and P. glauca, the two most abundant elasmobranch species recorded, were also the most important species in landings along the Pacific coast of BC (Cartamil et al 2011). Shovelnose guitarfish was also the species most captured in the upper Gulf of California (Marquez-Farias 2002, Bizzarro et al 2009a, Smith et al 2009.…”

Section: Biological Datamentioning

confidence: 99%

“…In 2008, 102807 vessels were recorded in Mexican artisanal fisheries, exploiting mainly coastal finfish, sharks, crustaceans, mollusks and echinoderms (Ramirez-Rodriguez 2011). This fishery represents an important source of employment, providing both sustenance and income for some of the poorest sectors of Mexican society (Arreguin-Sanchez et al 2004, Ponce-Diaz et al 2009, Cartamil et al 2011.…”

Section: Introductionmentioning

confidence: 99%

“…In recent years the artisanal elasmobranch fisheries have been described in several regions of northwestern Mexico, including Sonora (Bizzarro et al 2009a), the east coast of Baja California (BC) (Smith et al 2009), the east coast of Baja California Sur (BCS) (Bizzarro et al 2009b), Sinaloa (Bizzarro et al 2009c) and the Pacific coast of BC (Cartamil et al 2011). In 2009 BCS was the state with the second largest catch of elasmobranchs, representing 17% (4004 t) of the total catch on the Mexican Pacific coast (SAGARPA 2009).…”

Section: Introductionmentioning

confidence: 99%

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The artisanal elasmobranch fishery of the Pacific coast of Baja California Sur, Mexico, management implications

Ramírez‐Amaro¹,

Cartamil²,

Galván‐Magaña³

et al. 2013

Sci. Mar.

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SUMMARY: Artisanal fisheries in Mexico account for approximately 40% of the total national catch. In 2009, Baja California Sur (BCS) had the second largest catch of elasmobranchs on the Mexican Pacific coast. This paper characterizes and describes the artisanal elasmobranch fishery of Pacific coast of BCS from 2000 to 2010. Sixty artisanal camps were documented, of which 45 targeted elasmobranchs, using primarily gillnets and longlines. We identified 52 elasmobranch species. Gillnetting accounted for 73.5% of the fishing effort and most frequently captured Rhinobatos productus, Mustelus henlei and Myliobatis californica. Longline fishing accounted for 26.5% of effort, most frequently capturing Prionace glauca and Isurus oxyrinchus. The prevalence of juveniles of several species (e.g., Cephaloscyllium ventriosum, Galeorhinus galeus, Isurus oxyrinchus, and Myliobatis californica) within landings suggests that fishing effort may be opportunistically directed at breeding or nursery areas. Despite the dominance of species with wide distributions, we observed a significant biogeographic pattern in the abundance of some species relative to Bahia Magdalena. Results of the present study will be useful to detect changes in the structure of commercially exploited elasmobranch populations, and to provide useful indications for management purposes.Keywords: biogeographic pattern, elasmobranchs richness, fishing effort, Mexican coast, nursery areas, small-scale fishery.RESUMEN: Pesquería artesanal de elasmobranquios en la costa Pacifico de Baja California Sur, México, implicaciones para su gestión. -La pesquería artesanal en México soporta aproximadamente el 40% de la captura total nacional. En 2009 Baja California Sur (BCS) fue el segundo estado con mayor registro de captura de elasmobranquios de todo el Pacifico Mexicano. En el presente trabajo se realizó la caracterización y descripción de la pesquería artesanal de elasmobranquios en la costa Pacífico de BCS del 2000 al 2010. Se registraron 60 campos artesanales, de los cuales en 45 se capturaron elasmobranquios usando como artes de pesca redes y palangres. Se identificaron 52 especies de elasmobranquios. Las redes representaron el 73.5% del esfuerzo pesquero, las especies que se capturaron con mayor frecuencia fueron Rhinobatos productus, Mustelus henlei y Myliobatis californica. Por otra parte los palangres representaron el 26.5% del esfuerzo pesquero, las especies capturadas con mayor frecuencia fueron, Prionace glauca e Isurus oxyrinchus. La presencia de especímenes juveniles de varias especies en los desembarques (p. ej. Cephaloscyllium ventriosum, Galeorhinus galeus, Isurus oxyrinchus, Myliobatis californica) sugiere que el esfuerzo pesquero podría ser oportunista dirigido a las zonas de crianza o de reproducción. A pesar del dominio de especies con distribuciones amplias, se observó un patrón biogeográfico significativo en la abundancia de algunas especies al sur y al norte de Bahía Magdalena. Los resultados del presente estudio serán de utilidad para poder detectar...

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Section: Survey Of Artisanal Campssupporting

confidence: 76%

Section: Biological Datamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The artisanal elasmobranch fishery of the Pacific coast of Baja California Sur, Mexico, management implications

Ramírez‐Amaro¹,

Cartamil²,

Galván‐Magaña³

et al. 2013

Sci. Mar.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Resettlement in Baja was encouraged and incentivized by the federal government starting in the 1970s, following the decline of mainland fisheries [29]. Additionally, ephemeral, seasonal fishing camps are common in the region [30,31]. In this context defining a typical fishing "community" in Northwestern Mexico quickly becomes challenging, as socio-economic characteristics tend to be highly variable across sites.…”

Section: Small-scale Fisheries In Northwest Mexicomentioning

confidence: 99%

Re-defining co-management to facilitate small-scale fisheries reform: An illustration from northwest Mexico

Finkbeiner

Basurto

2015

Marine Policy

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a b s t r a c tSmall-scale fisheries face a suite of multi-level challenges, making the reliance on centralized governance approaches and self-governance alone unlikely to lead to long enduring solutions. Although co-management has been long proposed as a promising institutional arrangement, co-management can take many forms; thus, not any type of co-management will be effective for the suite of challenges facing small-scale fisheries today. This paper argues for moving beyond traditional conceptualizations of comanagement, to 'multi-level co-management,' in order to explicitly emphasize the principles of power devolution based on subsidiarity, cooperative partnerships, democratic participatory involvement, polycentricity, and governance networks. The experience of Northwest Mexico is used to illustrate the potential, opportunities, and barriers in achieving multi-level co-management in an effort to contribute to the constructive dialogue developing around the world, and in the region, on small-scale fisheries governance reform.

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Effects of fishing practice changes on pelagic shark longline captures in the Gulf of Gabes, Tunisia

Saïdi

Karaa

Enajjar

et al. 2019

Aquatic Conservation

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In order to increase their catches, longliners targeting sharks in the Gulf of Gabes, Tunisia, have increased the number of hooks per basket and have included new bait types instead of mackerel (Scomber scombrus). This paper reports the effects of these changes on catch composition, catch rates, size distribution, life‐stage captures, and mortality at haulback. Data from 48 and 96 longline sets, carried out during the shark fishing seasons of 2007 and 2008, with two hooks per basket, and 2016 and 2017, with five hooks per basket, respectively, were examined to assess the effect of gear change. Moreover, the effects of bait types were inspected based on 33 fishing sets using whole mackerel, 19 using salema (Sarpa salpa) halves, and 27 using pieces of stingray (Dasyatis spp.), sampled during 2016 and 2017. The species composition indicated that longliners expand the vertical distribution of their hooks to operate from the surface to the bottom. The catches with both longline designs were dominated by sandbar shark (Carcharhinus plumbeus). Despite gear changes, the catch rate of C. plumbeus decreased by 42.21%, suggesting population decline. The size composition indicated a shift towards larger specimens, mainly adult females, which could jeopardize the shark population. Moreover, the mortality of the main species at haulback seems to be affected by the design of the longline. The bait used, mainly pieces of stingray, significantly increased the catch rate of sandbar shark, which suggests a greater attractiveness of the new bait; however, fish size and mortality rates at haulback were unchanged in response to bait variation. The fishery operates in shark nursery grounds, which exposes these fish (principally C. plumbeus) to considerable exploitation pressure. The new fishing practices intensified the pressure and thus the risk of a rapid depletion of populations. To preserve the shark species in the area, the use of new gear and attractive bait should be banned.

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The artisanal elasmobranch fishery of the Pacific coast of Baja California, Mexico

Cited by 85 publications

References 33 publications

The artisanal elasmobranch fishery of the Pacific coast of Baja California Sur, Mexico, management implications

The artisanal elasmobranch fishery of the Pacific coast of Baja California Sur, Mexico, management implications

Re-defining co-management to facilitate small-scale fisheries reform: An illustration from northwest Mexico

Effects of fishing practice changes on pelagic shark longline captures in the Gulf of Gabes, Tunisia

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