Daily variation of fishing effort and ex-vessel prices in a western Mediterranean multi-species fishery: Implications for sustainable management

Samy-Kamal, Mohamed; Forcada, Aitor; Sánchez-Lizaso, José Luis

doi:10.1016/j.marpol.2015.08.015

Cited by 17 publications

(5 citation statements)

References 16 publications

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“…In experiences undertaken in Alicante, results showed that the losses from banning on Wednesday might be compensated by price increases and reductions of exploitation costs (Samy-Kamal et al, 2015). In case the reductions of fishing effort were not applied in terms of days per week, an alternative option could be decreasing the total number of working hours per day.…”

Section: Bottom Trawl Fisherymentioning

confidence: 99%

Harvest Strategies for an Ecosystem Approach to Fisheries Management in Western Mediterranean Demersal Fisheries

et al. 2017

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The serious overfishing of most Mediterranean stocks demands urgent reforms of the management measures aiming to guarantee the sustainability of resources, notably when compared with the improvement observed in other European areas. The new EU Common Fisheries Policy (CFP) constitutes an excellent opportunity to introduce the changes needed for such a reform. According to this CFP, all European fish stocks should be brought to a state where they can produce at MSY by 2020 at the latest. The CFP also establishes that the objective of sustainable exploitation should be achieved through multiannual plans (MAPs) adopted in consultation with relevant stakeholders having fisheries management interests such as fishermen, non-governmental organizations, and policy makers. Together with the MSY and MAP approaches, the new CFP contains several other measures, directed to guarantee the ecological and socio-economic sustainability of fisheries by means of the implementation of the ecosystem approach to fisheries management (EAFM). With this new perspective, the CFP wants to avoid past failures of fisheries management based on monospecific approaches. This study is a first step toward the application of the EAFM in the Balearic Islands by means of the development of a harvest strategy with defined objectives, targets, limits, and clear management control rules aimed at optimizing socioeconomic and ecological objectives in the framework of the new CFP. Different management scenarios designed to achieve that goal were modeled for the main demersal commercial fisheries from the study area, the bottom trawl, and small-scale fisheries. The work begins with a general description of those fisheries, their main fishing grounds, and assessments of the exploitation status of the main target stocks in order to establish the current situation. Secondly, alternative management scenarios to maximize catch and profits while considering societal objectives were evaluated by means of bio-economic models. Thirdly, management measures were provided based on the previous modeling and discussions with stakeholders. Finally, a monitoring scheme was outlined to assess the progresses of the proposed management actions. This work is intended to be a working example of co-management (fishers, policy-makers, and scientists) in the Mediterranean in the framework of the new EU CFP.

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Section: Bottom Trawl Fisherymentioning

confidence: 99%

Harvest Strategies for an Ecosystem Approach to Fisheries Management in Western Mediterranean Demersal Fisheries

et al. 2017

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“…Many countries are using the Dutch auctions in first sale/wholesale fish markets, including Sidney's Pyrmont in Australia (Hickey, 1989); the Basque Country in Spain (García et al ., 2010); Ancona and Pescara in Italy (Gallegati et al ., 2011; Giulioni & Bucciarelli, 2011); Sete and Lorient in France (Gallegati et al ., 2011; Guillotreau & Jiménez‐Toribio, 2011). The output data of wholesale fish markets from Dutch auctions have been useful in providing a substantial amount of data for many scientific studies with fisheries economic and sustainable management objectives ( e.g ., Fluvia et al ., 2012; Samy‐Kamal et al ., 2014; Samy‐Kamal et al ., 2015a, 2015b, 2015c). These auctions are working using the same mechanisms and technologies in these countries.…”

Section: Discussionmentioning

confidence: 99%

“…Ancona and Pescara in Italy (Gallegati et al, 2011;Giulioni & Bucciarelli, 2011); Sete and Lorient in France (Gallegati et al, 2011;Guillotreau & Jiménez-Toribio, 2011). The output data of wholesale fish markets from Dutch auctions have been useful in providing a substantial amount of data for many scientific studies with fisheries economic and sustainable management objectives (e.g., Fluvia et al, 2012;Samy-Kamal et al, 2014;Samy-Kamal et al, 2015a, 2015b, 2015c.…”

Section: Seasonality Of Prices Abundance Biomass and Revenuementioning

confidence: 99%

Diversity and characteristics of commercial Red Sea fish species based on fish market survey: informing management to reduce the risk of overfishing

Osman

Samy-Kamal

2023

Journal of Fish Biology

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In small‐scale fisheries (SSFs), where the sampling of many small boats and landing sites sometimes is not practical, fish market surveys represent an alternative way to obtain key fisheries data. This study analyses the diversity and characteristics of commercial Red Sea fish species landed in the Egyptian coast, including family, species‐specific abundance, biomass, size and price by surveying the largest local fish market on the Egyptian Red Sea coast, over the course of a year (July 2021–June 2022) to also reflect any seasonality of these variables. Based on 53 survey visits, a total of 131,795 fish individuals, belonging to 111 species, and 22 families, were identified, recorded and measured. The analysis focused on the 60 most abundant species (104,420 individuals, 15 families). The surveys revealed that the most abundant families were Serranidae, Lethrinidae and Scaridae. Carangidae also was one of the most important families in terms of biomass. The most abundant species were Lethrinus mahsena, Sargocentron spiniferum and Lethrinus nebulosus. About 60% of revenue comes from the four families Serranidae, Lethrinidae, Scaridae and Lutjanidae. In terms of prices, the most expensive categories were species belonging to Serranidae, Lethrinidae and Lutjanidae families, such as Plectropomus pessuliferus marisrubri, Argyrops spinifer, L. nebulosus and Variola louti. The overall mean prices were higher in spring and summer months likely due to tourism flows. The mean size of many species, including the most valuable and abundant ones, is below the length of maturity. These results provide important benchmarks for monitoring future changes and shed important insights for fisheries management. Co‐organised Dutch auctions would provide reliable data when combined with a strict monitoring effort to avoid any sale of the catch outside these official auctions. Other monitoring tools and methods are also recommended in the discussion.

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“…Concentrating the reduction during a single season can cause price decreases because of the irregular supply of fresh fish to the market (Samy-Kamal et al, 2015b). On the other hand, if effort reductions do not affect the continuous market supply (i.e., reducing 1-2 days per week; Scenarios 6-8), the reduction in the amount of catches over the short term would be balanced by an increase in the market price value because of the elasticity of supply and demand (Macher et al, 2008;Samy-Kamal et al, 2015a). During the medium to long term, the increase in the amount of catches will produce a higher supply to the market that may also affect prices if demand does not increase.…”

Section: Figure 12 |mentioning

confidence: 99%

Bioeconomic Analysis of the EU Multiannual Management Plan for Demersal Fisheries in the Western Mediterranean. Spanish Fisheries as a Case Study

2020

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The Multiannual Management Plan embedded in Regulation EU 2019/1022 of the European Parliament and of the Council of June 20, 2019, envisages to reform Mediterranean demersal fisheries to restore stocks to maximum sustainability yields by 2025. This paper leverages a bioeconomic model based on a specific case study of the Western Mediterranean Sea to analyze the objectives of this new EU reform. We complement this analysis with simulations based on alternative management strategies: the reduction of fishing effort of 1-2 days-per-week and changes to selectivity patterns. Effects on artisanal fleets are also analyzed in order to assess scenarios that could achieve sustainability for all demersal fishing fleets. The results reveal that it is not possible to achieve the plan's aims for all stocks. Furthermore, the fishing time established is insufficient, although it would increase economic, and biological indicators for medium-and long-term periods. The best scenarios would be achieved by applying selective changes that provide for faster recovery of biological and economic indicators for trawler and artisanal fleets. The results also reveal that the reduction in the number of fishing days per week complemented with selectivity changes would have a lower socioeconomic impact than a reduction in fishing effort based entirely on fishing days or number of boats. In any case, Mediterranean demersal fisheries require a significant and well-planned reduction in fishing mortality levels over the next several years to recover and maintain sustainable exploitation.

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Daily variation of fishing effort and ex-vessel prices in a western Mediterranean multi-species fishery: Implications for sustainable management

Cited by 17 publications

References 16 publications

Harvest Strategies for an Ecosystem Approach to Fisheries Management in Western Mediterranean Demersal Fisheries

Harvest Strategies for an Ecosystem Approach to Fisheries Management in Western Mediterranean Demersal Fisheries

Diversity and characteristics of commercial Red Sea fish species based on fish market survey: informing management to reduce the risk of overfishing

Bioeconomic Analysis of the EU Multiannual Management Plan for Demersal Fisheries in the Western Mediterranean. Spanish Fisheries as a Case Study

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