The artisanal fishery of the spiny lobster Palinurus elephas in Cabrera National Park, Spain: comparative study on traditional and modern traps with trammel nets
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Published source details
Amengual-Ramis J.F., Vázquez-Archdale M., Cánovas-Pérez C. & Morales-Nin B. (2016) The artisanal fishery of the spiny lobster Palinurus elephas in Cabrera National Park, Spain: comparative study on traditional and modern traps with trammel nets. Fisheries Research, 179, 23-32.
Published source details Amengual-Ramis J.F., Vázquez-Archdale M., Cánovas-Pérez C. & Morales-Nin B. (2016) The artisanal fishery of the spiny lobster Palinurus elephas in Cabrera National Park, Spain: comparative study on traditional and modern traps with trammel nets. Fisheries Research, 179, 23-32.
Actions
This study is summarised as evidence for the following.
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Use traps instead of fishing nets Action Link |
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Modify the design of traps Action Link |
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Use traps instead of fishing nets
A replicated, controlled study in 2011–2012 of seabed composed of mud, kelp, and maërl, off the southeastern coast of Mallorca, Mediterranean Sea, Spain (Amengual-Ramis et al. 2016) found that experimental designs of lobster traps appeared to catch different combined amounts of non-commercial unwanted invertebrates and fish (discard) than commercially used trammel nets, but the amount varied with trap design. Data were not statistically tested. When comparing similar length-deployment for each fishing design, the amount of discard caught in plastic traps (3 individuals/450 m) tended to be lower than in trammel nets (5.7), but higher in collapsible traps (16). Catches of legal-size commercially targeted lobsters tended to be lower in traps (0–0.3 lobsters/450 m) than in trammel nets (1.3). In May–September 2011, traps (900/design) were deployed at 50–100 m depth for 24h (see paper for details of each design). Lobsters and unwanted species caught were counted and measured in each trap. Baited traps were deployed in two 450 m-long strings of 30 traps each (one line/design; >200 m apart). In May–August 2012, similar data for trammel nets were obtained onboard commercial vessels (119 nets, 50 m each, deployed overnight).
(Summarised by: Anaëlle Lemasson & Laura Pettit)
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Modify the design of traps
A replicated, controlled study in 2011–2012 of seabed composed of mud, kelp, and maërl, off the southeastern coast of Mallorca, western Mediterranean Sea, Spain (Amengual-Ramis et al. 2016) found that plastic lobster traps appeared to catch lower amounts of non-commercial unwanted catch (discard) than collapsible traps. Data were not statistically tested. The amount of discard caught in plastic traps (3 individuals/450 m) tended to be lower than in collapsible traps (16). In addition, plastic traps caught some legal-size commercially targeted lobsters (0.3/450 m), while collapsible traps caught none. In May–September 2011, two new designs of traps, plastic and collapsible (900/design), were deployed at 50–100 m depth for 24 h (see original paper for details of each design). Lobsters and discard species caught were counted and measured in each trap. Baited traps were deployed in two 450 m-long strings of 30 traps each (one line/design; >200 m apart).
(Summarised by: Anaëlle Lemasson & Laura Pettit)
