Fariña, A. C., Azevedo, M., Landa, J., Duarte, R., Sampedro, P., Costas, G., Torres, M. A., and Cañás, L. 2008. Lophius in the world: a synthesis on the common features and life strategies. – ICES Journal of Marine Science, 65: 1272–1280. Seven species of Lophius are known worldwide, six in the Atlantic Ocean and just one in the Northwest Pacific. The genus supports valuable fisheries (except for Lophius vaillanti), most for a long time, though the exploitation of Lophiusgastrophysus along the coast of Brazil is relatively recent. The manuscript reviews the current knowledge of phylogeographic and biological traits of Lophius species, pointing out common aspects in the life histories. Within the Lophiidae, the genus Lophius is phylogenetically the most derived, vicariance and dispersal having played a significant role in driving speciation. Life histories seem to have followed similar adaptive processes from a common ancestor along with similar environmental characteristics. The genetic structure of populations is poorly known, and usually, genetic differentiation is limited. Life-history aspects (age, growth, reproductive cycle, early stages, and feeding ecology) are addressed, and fisheries are reviewed. However, knowledge of many aspects of the biology and ecology (e.g. validation of the growth pattern, maturation processes, spawning areas and periodicity, recruitment processes, mortality, stock identification, and habitat needs) remains limited.

The purpose of this article is to assess the effectiveness of the collaboration between stakeholders and scientists in the construction of a bio-economic model to simulate management strategies for the fisheries in Iberian Atlantic waters. For 3 years, different stakeholders were involved in a model development study, participating in meetings, surveys and workshops. Participatory modelling involved the definition of objectives and priorities of stakeholders, a qualitative evaluation and validation of the model for use by decision-makers, and an iterative process with the fishing sector to interpret results and introduce new scenarios for numerical simulation. The results showed that the objectives of the participating stakeholders differed. Incorporating objectives into the design of the model and prioritizing them was a challenging task. We showed that the parameterization of the model and the analysis of the scenarios results could be improved by the fishers’ input: e.g. ray and skate stocks were explicitly included in the model; and the behaviour of fleet dynamics proved much more complex than assumed in any traditional modelling approach. Overall, this study demonstrated that stakeholder engagement through dialogue and many interactions was beneficial for both, scientists and the fishing industry. The researchers obtained a final refined model and the fishing industry benefited from participating in a process, which enables them to influence decisions that may affect them directly (to shape) whereas non-participatory processes lead to management strategies being imposed on stakeholders (to be shaped).

The landing obligation policy was one of the major innovations introduced in the last Common Fisheries Policy reform in Europe. It is foreseen that the policy will affect the use of fishing opportunities and hence the economic performance of the fleets. The problem with fishing opportunities could be solved if single-stock total allowable catches (TACs) could be achieved simultaneously for all the stocks. In this study, we evaluate the economic impact of the landing obligation policy on the Spanish demersal fleet operating in the Iberian Sea region. To generate TAC advice, we used two sets of maximum sustainable yield (MSY) reference points, the single-stock MSY reference points defined by ICES and a set of multistock reference points calculated simultaneously using a bioeconomic optimization model. We found that the impact of the landing obligation is time and fleet dependent and highly influenced by assumptions about fleet dynamics. At fishery level, multistock reference points mitigate the decrease in the net present value generated by the implementation of the landing obligation. However at fleet level, the effect depends on the fleet itself and the period. To ensure the optimum use of fishing opportunities, the landing obligation should be accompanied by a management system that guarantees consistency between single-stock TACs. In this regard, multistock reference points represent an improvement over those currently in use. However, further investigation is necessary to enhance performance both at fleet level and in the long term.

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