Determination of catchability-at-age for the Mexican Pacific shrimp fishery in the southern Gulf of California

Aranceta‐Garza, Fernando; Arreguı́n-Sánchez, Francisco; Seijo, Juan Carlos; Ponce‐Díaz, Germán; Lluch‐Cota, Daniel B.; Luna, Pablo Del Monte

doi:10.1016/j.rsma.2019.100967

Cited by 3 publications

(3 citation statements)

References 22 publications

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“…The white shrimp dominates in waters protected by a permanent or seasonal low salinity that responds to the rain cycle, from southern Sinaloa to Guatemala [58]; the zones with 20 • C temperatures make them inactive and lowers their food consumption, unlike the shrimps from the 35 • C zones, which show hyperactivity and a higher food consumption [59]. Additionally, the white shrimp tolerates low salinities, these commonly found in protected waters, becoming the dominant species in inland waters from southern Sinaloa to Tehuantepec [2].…”

Section: Environmental Drivers Of Shrimps' Distributionmentioning

confidence: 99%

“…In the Mexican Pacific, eight shrimp species are utilized, from which three constitute more than the 90% of the total catch: brown shrimp (Farfantepenaeus californiensis), blue shrimp (Litopenaeus stylirostris), and white shrimp (Litopenaeus vannamei). Both the industrial fleet and the small scale one or riverside participate in the fishing [1,2]. The capture of these species is within the top ten by tons produced, but in first place by the economic benefits at the national level [3].…”

Section: Introductionmentioning

confidence: 99%

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Potential Impacts of Climate Change on Shrimps Distribution of Commercial Importance in the Gulf of California

et al. 2021

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The Gulf of California is the most productive fishing region in Mexico; its ecosystems contain a vast diversity of species with exploitation potential, some of them potentially vulnerable to climate change. This research was conducted to analyze, through habitat suitability models, the possible alterations in the distribution of the three shrimp species of the most importance for commercial fishing in the region: Litopenaeus stylirostris, Litopenaeus vannamei, and Farfantepenaeus californiensis. Habitat suitability models were built using the MaxEnt software, primary productivity data, temperature, salinity, bathymetry, substratum, coastal type, and geo-referenced occurrence records of the three species. Of the data, 70% was used on training, while the remaining 30% was used for validation. To make estimates of climate change impact on this fishery, projections on distribution of the three species from environmental forecasts generated by the intergovernmental panel on climate change until 2100 were made. The used model, that is in full development and expansion, could be considered as an applicable tool to other problems and showed efficiency rates above 90%. The species will maintain most of their historical distribution, but L. stylirostris and L. vannamei will have a new distribution area within the zones of the Magdalena-Almejas Bay and the Gulf of Ulloa, with an increase of 80% and 148% respectively; all species will have loss areas in the proportion of 16%, 2%, and 11%, respectively, along the southern Gulf of California.

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Section: Environmental Drivers Of Shrimps' Distributionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Potential Impacts of Climate Change on Shrimps Distribution of Commercial Importance in the Gulf of California

et al. 2021

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“…In 2018, the national shrimp catch was 72,002 tons of live weight, 71% of which were caught along the coasts of the Mexican Pacific (MP) [1]. According to Aranceta-Garza et al [2], the main species exploited commercially by the sequential shrimp fishery in the MP are the brown shrimp Farfantepenaeus californiensis, the blue shrimp Litopenaeus stylirostris, and the white shrimp Litopenaeus vannamei. Meanwhile, 29% of the national catch is obtained in the Gulf of México (GM), with the brown shrimp Farfantepenaeus aztecus, the pink shrimp Farfantepenaeus dourarum, and the Siete Barbas shrimp Xiphopenaeus kroyeri standing out as the most important species according to the volume of catches.…”

Section: Introductionmentioning

confidence: 99%

Cost Efficiencies of the Shrimp Fishery in Mexico: A Stochastic Frontier Analysis

Avilés-Polanco,

Almendarez-Hernández,

Beltrán-Morales

et al. 2023

Fishes

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Fishing sector fuel subsidies are designed to increase profitability by reducing costs. However, despite the number of liters of fuel subsidized in 2018 in Mexico, there is no information available on the effectiveness of the subsidies in reducing cost inefficiencies. The purpose of this study was to estimate the cost efficiency of shrimp fishing companies in Mexico, as well as measure the impact of fuel subsidies on the cost inefficiency of the sector from 2003 to 2018. The True Fixed Effects model was used to represent a Cobb–Douglas stochastic production frontier, which included a shrimp fishing inefficiencies model. The results indicate that shrimp fishing companies could reduce their costs by 25% without reducing their catch levels. Fishing companies in the Gulf of Mexico were more efficient than those operating in the Gulf of California and the South Pacific. Fuel subsidies reduce cost inefficiencies, with a greater effect when the subsidy reaches a level of 20% of the total liters of subsidized fuel.

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The challenge of assessing the state of exploitation of short-lived fishery resources with limited data: the blue shrimp (Penaeus stylirostris) fishery in the Gulf of California, Mexico

Arreguín-Sánchez,

Pérez-Quiñónez,

Hernández-López

et al. 2023

Front. Mar. Sci.

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Assessing the state of exploitation of a resource is key to its management. In the fishery of the blue shrimp, Penaeus stylirostris, off the central-eastern coast of the Gulf of Baja California, this assessment process is critical for two reasons: the data is limited because only catch and effort data are available, and the dynamic biomass model is not applicable to short-lived (annual) species. In this study, a procedure based on the Leslie model was used, and applied to the last 15 annual fishing seasons (2006 to 2021). Estimates of the monthly biomass per fishing season, the corresponding harvest rates (HRy), and indicators for the survival ratio, sy, representing the remaining stock at the end of the fishing season (essentially spawners), and the fishery’s recruitment rate, ρy, at the beginning of the fishing season, were obtained. These last two quantities, sy and ρy, were related to identify a limit biological reference point that reflects the replacement level for the shrimp stock, defined here as the limit for population renewal rate, PRRLim. Initially, a Kobe diagram was constructed based on HRy and sy, which indicated a sustainable fishery status that requires management measures to limit fishing to keep it sustainable, which is currently being implemented. A Kobe diagram was also constructed based on ρy, instead of sy, yielding the same results. Additionally, we used Kobe’s diagrams to show the contribution of the environment and an ecosystem-based reference point.

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Determination of catchability-at-age for the Mexican Pacific shrimp fishery in the southern Gulf of California

Cited by 3 publications

References 22 publications

Potential Impacts of Climate Change on Shrimps Distribution of Commercial Importance in the Gulf of California

Potential Impacts of Climate Change on Shrimps Distribution of Commercial Importance in the Gulf of California

Cost Efficiencies of the Shrimp Fishery in Mexico: A Stochastic Frontier Analysis

The challenge of assessing the state of exploitation of short-lived fishery resources with limited data: the blue shrimp (Penaeus stylirostris) fishery in the Gulf of California, Mexico

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