Socioeconomic performance of West African fleets that target Atlantic billfish

Brinson, Ayeisha A.; Die, David J.; Bannerman, P.; Diatta, Youssouph

doi:10.1016/j.fishres.2009.04.010

Cited by 13 publications

(10 citation statements)

References 20 publications

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“…While the International Commission for the Conservation of Atlantic Tunas (ICCAT) establishes a harvest guideline, it has not been able to coordinate measures to stay within the GHLs across the different fleets and flag states. As a consequence, there are no regulations to limit individual harvesters and this stock is currently heavily over‐exploited (ICCAT, ), and the West African fishermen targeting sailfish from canoes are quite poor, with fewer than 40% having running water (Brinson, Die, Bannerman, & Diatta, ). Without any restrictions on effort or spatial access, GHLs result in the same deleterious economic and biological outcomes as unregulated open access.…”

Section: Path 2: Limiting Effortmentioning

confidence: 99%

How commercial fishing effort is managed

et al. 2018

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Wild capture fisheries produce 90 million tonnes of food each year and have the potential to provide sustainable livelihoods for nearly 40 million people around the world (http://www.fao.org/3/a-i5555e.pdf). After decades of overfishing since industrialization, many global fish stocks have recovered, a change brought about through effective management. We provide a synthetic overview of three approaches that managers use to sustain stocks: regulating catch and fishing mortality, regulating effort and regulating spatial access. Within each of these approaches, we describe common restrictions, how they alter incentives to change fishing behaviour, and the resultant ecological, economic and community‐level outcomes. For each approach, we present prominent case‐studies that illustrate behaviour and the corresponding performance. These case‐studies show that sustaining target stocks requires a hard limit on fishing mortality under most conditions, but that additional measures are required to generate economic benefits. Different systems for allocation allow stakeholder communities to strike a locally acceptable balance between profitability and employment.

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Section: Path 2: Limiting Effortmentioning

confidence: 99%

How commercial fishing effort is managed

et al. 2018

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“…Sailfish ( Istiophorus platypterus ), an epipelagic billfish, are prized by recreational fishermen1234, and provide major nutritional, economic and cultural benefits for artisanal fishing communities5678. Both eastern and western stocks are considered likely overfished, with biomass below, and fishing mortality above, maximum sustainable yield9, although uncertainties are recognized in the stock assessment conducted by the International Commission for the Conservation of Atlantic Tunas (ICCAT)10.…”

mentioning

confidence: 99%

Sailfish migrations connect productive coastal areas in the West Atlantic Ocean

Lam

Galuardi

Mendillo³

et al. 2016

Sci Rep

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Isla Mujeres, Mexico is home to one of the most well-known aggregations of sailfish. Despite its fisheries prominence, little is known about this sailfish assemblage, or its relationship to other aggregation sites in the western Atlantic. In January 2012, April 2013 and 2014, we deployed 34 popup satellite archival tags on sailfish in order to study their behavior, population connectivity and biophysical interactions. Sailfish were monitored for up to one year, and displayed (1) predominantly shelf associated activity (2) occupancy of the Yucatán Current near Isla Mujeres for up to five months and (3) subsequent dispersals from the Yucatán to productive coastal areas in the Gulf of Mexico, the Caribbean Sea and along the South American coast. Tagged sailfish occupied a median temperature of 26.4°C (interquartile range, IQR = 2.5 °C; range = 12.3–33.3 °C) and median depth of 4.4 m (IQR = 19 m; range = 0–452 m). Diel activity was present and individuals made distinctive descents before sunrise and sunset. Tracking missions of sufficient duration (~1 year) revealed previously undetected connectivity between western Atlantic sailfish fisheries and pelagic longline catches, and highlighted how fishery independent tagging can improve understanding of sailfish migrations and behavior for assessment and management.

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“…Pelagic fish (sardines, sardinellas, mackerels, bonga shad) as well as demersal species (croakers, African threadfin, soles, catfish, and snappers) are important components of the artisanal catch. While most countries engage in both industrial and artisanal fishing with varying gear types and target species for each sector, it appears that Senegal, The Gambia, Sierra Leone, Ghana, and Nigeria have predominately artisanal fleets (CORMIER-SALEM, 1994;LAE et al, 2004;SYLVANUS, 2007;BRINSON, 2009;BAIO, 2010). The gear types in use include a variety of nets (seines, driftnets, hand trawls, and set gill nets), as well as traps, hand lines, pole lines, and some longlines (ICCAT 2005, Sea Around Us Project 2010); there is also a higher incidence of mixed gear use among artisanal fisheries compared to industrial fleets (MOORE et al, 2010).…”

Section: Artisanal Fisheriesmentioning

confidence: 99%

“…Fishermen in Sierra Leone use mostly nets (65.4% of total gear) to capture bonga, sardine, and barracuda (Sphyraena) (BAIO, 2010). In Ghana, an artisanal drift net fishery targets sailfish and other billfish, tunas, and sharks (BRINSON et al, 2009). Small pelagics are exploited in EEZ waters from Ghana to the Democratic Republic of Congo using purse seines, gillnets, mid-water net trawls, and driftnets (CHUKUWONE et al, 2009).…”

Section: Seines and Gillnetsmentioning

confidence: 99%

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2013

Munibe Monogr., nat. ser.

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Munibe. Suplemento, created in 1973, is a publication of the Aranzadi Society of Sciences of very specific monographic studies corresponding to the areas of knowledge of antrophology and archaeology and natural sciences. In 2012 we decided to create two independent publications called to substitute the earlier Munibe. Suplemento: Munibe Monographs. Archaeology and Anthropology Series and Munibe Monographs. Nature Series.

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Socioeconomic performance of West African fleets that target Atlantic billfish

Cited by 13 publications

References 20 publications

How commercial fishing effort is managed

How commercial fishing effort is managed

Sailfish migrations connect productive coastal areas in the West Atlantic Ocean

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