A critique of the ecosystem impacts of drifting and anchored FADs use by purse-seine tuna fisheries in the Western and Central Pacific Ocean

Bruno Leroy, Joe Scutt Phillips, Simon Nicol, Graham M. Pilling, Shelton Harley, Don Bromhead, Simon Hoyle, Sylvain Caillot, Valerie Allain, John Hampton

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

In the Western and Central Pacific Ocean (WCPO), which accounts for over half of world tuna production, purse seine effort and catch on floating objects have increased significantly due to a rapid increase in the use of fixed and free-floating fish aggregation devices (FADs). FAD fishing has had an impact on the current status of the stocks of the three main target tunas in the equatorial WCPO, skipjack (Katsuwonus pelamis), yellowfin (Thunnus albacares) and bigeye (T. obesus). FADs have been shown to influence the behaviour and movement patterns of the three tuna species with the juveniles of each species occupying shallower habitats when associated with FADs. Aggregation of tunas around drifting objects increases their vulnerability to purse seine gear, particularly for juvenile and small size classes. Further to the impacts on the target stocks, the use of FADs has increased the vulnerability of other fishes to the purse seine method, including some shark and billfish species. Given the concern over FAD-related fishing effort on target and bycatch species, there is a need to understand how FAD use affects target and bycatch stocks. Science needs to better support management decisions are highlighted including the need to identify the magnitude of broader community-level affects.

Original languageEnglish
Pages (from-to)49-61
Number of pages13
JournalAquatic Living Resources
Volume26
Issue number1
DOIs
Publication statusPublished - 1 Jan 2013
Externally publishedYes

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tuna fishery
tuna
Pacific Ocean
fisheries
ecosystems
ecosystem
ocean
fish
bycatch
vulnerability
Istiophoridae
Thunnus obesus
Katsuwonus pelamis
Thunnus albacares
fishing effort
shark
sharks
fishing

Cite this

Leroy, Bruno ; Phillips, Joe Scutt ; Nicol, Simon ; Pilling, Graham M. ; Harley, Shelton ; Bromhead, Don ; Hoyle, Simon ; Caillot, Sylvain ; Allain, Valerie ; Hampton, John. / A critique of the ecosystem impacts of drifting and anchored FADs use by purse-seine tuna fisheries in the Western and Central Pacific Ocean. In: Aquatic Living Resources. 2013 ; Vol. 26, No. 1. pp. 49-61.
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Leroy, B, Phillips, JS, Nicol, S, Pilling, GM, Harley, S, Bromhead, D, Hoyle, S, Caillot, S, Allain, V & Hampton, J 2013, 'A critique of the ecosystem impacts of drifting and anchored FADs use by purse-seine tuna fisheries in the Western and Central Pacific Ocean', Aquatic Living Resources, vol. 26, no. 1, pp. 49-61. https://doi.org/10.1051/alr/2012033

A critique of the ecosystem impacts of drifting and anchored FADs use by purse-seine tuna fisheries in the Western and Central Pacific Ocean. / Leroy, Bruno; Phillips, Joe Scutt; Nicol, Simon; Pilling, Graham M.; Harley, Shelton; Bromhead, Don; Hoyle, Simon; Caillot, Sylvain; Allain, Valerie; Hampton, John.

In: Aquatic Living Resources, Vol. 26, No. 1, 01.01.2013, p. 49-61.

Research output: Contribution to journalArticle

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T1 - A critique of the ecosystem impacts of drifting and anchored FADs use by purse-seine tuna fisheries in the Western and Central Pacific Ocean

AU - Leroy, Bruno

AU - Phillips, Joe Scutt

AU - Nicol, Simon

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AU - Harley, Shelton

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