Economic dimension of the collapse of the ‘false cod’ <i>Epinephelus aeneus</i> in a context of ineffective management of the small-scale fisheries in Senegal

Thiao, Djiga; Chaboud, Christian; Samba, Alassane; Laloë, Francis; Cury, Philippe

doi:10.2989/1814232x.2012.725278

Cited by 40 publications

(14 citation statements)

References 8 publications

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“…Los cambios producidos por ENOS tienen una gran significancia para el manejo sostenible de los recursos pesqueros artesanales, especialmente considerando que los 'boom/auge' y 'bust/colapso' unidos a la variación climática son comunes en el Pacífico Sudoriental (Pauly & Tsukayama 1987, ToralGranda 2008, Aranda 2009) y a la pesquería artesanal (Karnauskas et al 2011, Thiao et al 2012. Por ejemplo, después de un 'boom' de Argopecten purpuratus producido por un evento El Niño, la extracción aumentó enseguida por un 'bust' de la pesquería (Wolff et al 2007).…”

Section: Discussionunclassified

Influencia de El Niño Oscilación del Sur en la disponibilidad y abundancia de recursos hidrobiológicos de la pesca artesanal en Ica, Perú

Adams¹,

Flores

2016

Rev. biol. mar. oceanogr.

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Section: Discussionunclassified

Influencia de El Niño Oscilación del Sur en la disponibilidad y abundancia de recursos hidrobiológicos de la pesca artesanal en Ica, Perú

Adams¹,

Flores

2016

Rev. biol. mar. oceanogr.

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“…Epinephelus aeneus has been heavily exploited throughout the southern and eastern Mediterranean Sea and especially along the Atlantic African coast, where it is considered as over-exploited (Cury & Roy, 1988;Gascuel & Ménard, 1997;Thiao et al, 2012). Current conservation measures for the species are inadequate, and those in force (minimum catch sizes, fishing-gear restrictions, limited number of fishing permits, fishing seasonal closures) are considered ineffective due to a lack, in most countries, of enforcement (Thiao et al, 2012;Pollard et al, 2018). Consequently, the white grouper is listed as 'Near Threatened' on the IUCN Red List (Pollard et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

First direct evidence of reproductive behaviour of the white grouper, Epinephelus aeneus (Geoffroy Saint-Hilaire, 1817)

Desiderà

Magnani

Navone³

et al. 2019

Medit. Mar. Sci.

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This study describes the first ever reported direct observation of a pair spawning event and the reproductive liveries of the white grouper, Epinephelus aeneus. Spawning took place on a rocky bank located in the Marine Protected Area (MPA) of Tavolara-Punta Coda Cavallo (NE Sardinia, Italy), in the Western Mediterranean Sea. In the evening of August 4 th , 2018, the spawning of two large-sized individuals (~90 cm total length), displaying distinct colour patterns, was observed using SCUBA diving. This direct observation is the first record of E. aeneus male reproductive livery, characterized by a darker coloration on the head, the dorsal part of the body and the caudal fin. In addition, information on the environmental conditions in which reproduction occurred was collected. At the study site, relatively high seawater temperatures were recorded at the time of the E. aeneus spawning (24 °C at 24.7 m), as well as over the 2018 summer months (July-September), even in deep waters (>35 m), compared to previous summers. The spawning event occurred in a coralligenous-dominated seascape where fishing is prohibited, while diving activities are allowed. The site hosts abundant populations of ecologically and commercially valuable fish species (e.g., groupers, sparid fishes), with significant proportions of large-sized individuals (i.e. reproducers). Further studies are needed to advance our knowledge of the white grouper, with a particular emphasis on reproduction and the importance of implementing effective protection measures. Prioritizing management actions at key reproductive sites, such as rocky banks, is essential for ensuring the protection and/or recovery of over-exploited species.

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“…Subsequently, these favorable conditions led to a decline in the fishing sector in Senegal (Dahou et al, 2001). The resulting overcapacities in fisheries have led to the overexploitation of several stocks (Thiao et al, 2012 andLaurans et al, 2004).For all these reasons, fishing must therefore be subject to special protection and surveil. Fisheries surveil is defined as the correct application of rules governing fishing activities.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Ten Years Surveil of Industrial Fisheries in Senegal, 1998-2007

Niass¹,

Faye²

2017

JAES

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The present study makes the current situation of the surveillance (supervision) of fisheries in Senegal. So, it allows measuring the impact of the implementation of the Vessels Monitoring System (VMS) in the strategies of inspection and control. The state of exploitation of the resources appears through the reduction in the landings, what denotes of a pressure supported on the main stocks exploited by the small-scale fishing and the industrial fishing boat. This reduction requires the implementation of various strategies regarding management and regarding development of the resources. The fisheries surveillance appears in this respect as a tool working to the correct application of laws and regulations governing the activities of fishing. So, during the decade 1998-2007, period when this study was confined, the exploitation of the boardings database allowed to determine the evolution of the noticed breaches, which will have to serve as medium to judge the options and the strategies of control. On the basis of statistical tools, satisfactory results were obtained in consideration of the objectives of departure. From the interpretation and the discussion of the results ensue the necessity of strengthening and even of perpetuating the VMS which, coupled with the other systems of inspection would act as transverse solution to the troubles of the surveillance. This is consolidated by its positive impacts from the point of view of the optimization of the means of surveillance, of its efficiency through the targeting of the inspections and finally its dissuasive effect with an almost permanent follow-up. However, the fisheries surveillance calls on to a conjugation of efforts in the scale subregional even worldwide for a long-lasting management of the resources.

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Economic dimension of the collapse of the ‘false cod’ Epinephelus aeneus in a context of ineffective management of the small-scale fisheries in Senegal

Cited by 40 publications

References 8 publications

Influencia de El Niño Oscilación del Sur en la disponibilidad y abundancia de recursos hidrobiológicos de la pesca artesanal en Ica, Perú

Influencia de El Niño Oscilación del Sur en la disponibilidad y abundancia de recursos hidrobiológicos de la pesca artesanal en Ica, Perú

First direct evidence of reproductive behaviour of the white grouper, Epinephelus aeneus (Geoffroy Saint-Hilaire, 1817)

Analysis of Ten Years Surveil of Industrial Fisheries in Senegal, 1998-2007

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