Characterising ecological trends and vulnerability of Portuguese fisheries

Master Thesis subject (30 ECTS)
Several years of global multispecies harvests are represented in Portuguese Fisheries Statistic department, and offer a broad perspective on events that underlie the major observed changes in Portuguese marine harvests. The likely relevance of top-down and bottom-up trophic interactions, versus the impacts of changes in fishing technology and markets on the trophic level of landings, are discussed on a regional basis. Ecological indicators calculated from landings data will be used to evaluate the effects of fishing on marine ecosystem. Species will be choose and used as indicator species and ecosystems status. Fleet size and technological advance and imperfect fisheries management measures will be linked to catch information to probably explain trends in multispecies production. Our results are useful in the following ways: (1) encourage researchers in academia and government to improve fishing knowledge and understand impact of fishing on marine ecosystems. Most of data for analyses is already available for the study. The student will: a) Review of some relevant fish legislation; b) Relate fleet to catch data (non-stationary time series analyses and correlative analyses); c) determine marine biodiversity and other production indexes
acceptable English reading and writing level: Ability to consult scientifically literature
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Reference Number: RP-46231