Using Taxes to Manage a Multigear Fishery: An Application to a Spanish Fishery

When fishing gears alter the composition of fish populations or modify the recruitment rate, it is advisable to include the degree of their fishing selectivity in the analysis. Fishing selectivity can cause two different management problems: interspecies selectivity or by‐catch of fish stocks for which no quota has been set by the regulator. The case study is the Spanish fishery of hake (Merlucius merlucius), where the fleet operates using two main gears; most of the vessels are trawlers but a few boats use longlines and other fixed gears. Fishery management by means of effort taxes and how the degree of intraspecies selectivity may affect the resource and tax levels are analyzed. The results show that the tax level will depend on the social value of the marine stock, the marginal productivity of each fleet\u27s effort, and the effect that the fishing activity of each one has on the growth of the hake biomass

Management of a fishery using taxes: The European hake fishery

The management by means of taxes of a fishery in which the fishing technology of the fleets has different effects on resource is analysed in this paper. This effect can be included in the natural growth of the marine resource function itself. The results show that the tax equilibrium level depends on shadow price, marginal productivity of the effort and effect of each gear on natural growth. The fleet that has a greater impact on resource will pay a higher rate of tax. And this rate will fall as the fleet in question improves its degree of fishing selectivity. Likewise we present some economic policy recommendations for this fishery.taxes, intra-species selectivity, European hake.

¿Es discriminatorio el reparto de cuotas de pesca en la UE? Un caso de estudio

El objetivo de este trabajo es aportar información que nos permita argumentar mejor sobre las cualidades económicas del mecanismo automático de asignación utilizado en el seno de la Unión Europea para repartir los TACs de las diferentes especies y en las distintas zonas en cuotas de pesca nacionales. A través de un sencillo ejemplo, utilizando datos de siete segmentos de flota comunitarios, observamos que tal reparto no parece ser un instrumento económicamente neutral, pues puede favorecer la permanencia en la actividad de flota menos eficientes y con mayores necesidades de financiación comunitaria, o de flotas con menor capacidad generadora de renta y empleo........The aim of this paper is to provide information that allows us to better argue about the economic attributes of the automatic allocation mechanism used by the European Union to distribute the TACs of the different species and zones to national fishing quotas. By means of a simple example, using data of seven EU fleet segments, we observe that such allocation mechanism seems not to be a neutral tool from a economic point of view, since it may favour the maintenance in actitivy of either less efficient fleets and with greater community financing needs, or fleets with less capacity to create rent and employment

La percepción de los agentes económicos sobre la regulación de pesquerías. Aplicación al sector pesquero de Galicia

La regulación de pesquerías ha evolucionado a escala mundial de forma significativa, en paralelo con las aportaciones teóricas y las experiencias reales. En el presente trabajo se trata de marcar adecuadamente la discusión teórica sobre regulación de pesquerías, perfilando y matizando algunas cuestiones, para proceder a continuación, a formular un procedimiento de análisis de la percepción que los agentes económicos tienen sobre los aspectos que consideramos más significativos en la regulación. Estos aspectos se refieren a medidas técnicas y su grado de aceptación y cumplimiento, así como el propio proceso de diseño y control de las medidas de regulación. Nuestro enfoque lo aplicamos, a través de una muestra, al caso de Galicia, para lo cual especificamos también el marco institucional en este caso......The regulation of fisheries has developed significantly on worldwide scale, in parallel with theoretical contributions and real-life experiences. In this paper we will discuss the theoretical debate on the regulation of the fishing industries, qualifying some of the major themes in order to draw up a procedure for analysing the perception of economic agents on the aspects which we consider to be the most significant insofar as regulation is concerned. These aspects are related to technical measures and the degree to which they are accepted and complied, as well as the process itself of design and control of regulatory measures. We will, by means of example, focus on the case of Galicia, to which end we will also specify the corresponding institutional framework

Profitability of the fishing fleet and structural aid in the European Union

A widespread belief exists as to the low financial profitability of fishing companies, but fishermen continue to invest and provoke problems of over-capitalisation. The aim of this study is to provide information on the financial profitability of the European fleet, to analyse the differences between the different segments and the possible influence of structural policies. The results we obtain show that, within the European institutional framework, the prospects of obtaining yields suited to the investment made increase. The coincidence of countries which practise a policy of protectionism and low profitability fleets should be reflected on in the light of the present Common Fisheries Policy reform procedure.Financial profits European fishing fleets

Assessment of economic damages from the Prestige oil spill

The Prestige oil spill may be considered as one of the worst in last years, because of the amount spilled (59,000 tons at the moment) and the wide zone affected: almost all the coastline in Galicia (Spanish region with a very important coastal fishing activity) and some points in the North Spain and in the Southwest France. In this paper, we estimate the short-term economic damages from the Prestige oil spills in the Galician coastal fishing and aquaculture sectors by great areas. The zones that received more oil spills obtained the biggest economic losses.Fisheries Oil spill damages

Using Genetic Algorithms to Estimate and Validate Bioeconomic Models: The Case of the Ibero-atlantic Sardine Fishery

bioeconomic modelling, Genetic Algorithms, linear and non-linear forecasting,