A5016190760- Marine and fisheries research
- Marine Bivalve and Aquaculture Studies
- Aquaculture Nutrition and Growth
- Coral and Marine Ecosystems Studies
- Crustacean biology and ecology
- Fish Biology and Ecology Studies
- Reproductive biology and impacts on aquatic species
- Cephalopods and Marine Biology
- Fish Ecology and Management Studies
- Fish biology, ecology, and behavior
- Climate change impacts on agriculture
- Ocean Acidification Effects and Responses
- Marine Biology and Ecology Research
- Veterinary Pharmacology and Anesthesia
- Identification and Quantification in Food
- Animal Ecology and Behavior Studies
- Marine and coastal plant biology
University of Algarve
2008-2024
University of Coimbra
2021
This is the first attempt to apply an expert-based ecological vulnerability assessment of effects climate change on main marine resources Portugal. The vulnerability, exposure, sensitivity, adaptive capacity, and expected directional 74 species fish invertebrates commercial interest estimated based criteria related their life-history level conservation or exploitation. analysis performed separately for three regions Portugal two scenarios (RCP 4.5 RCP 8.5). To do that, fourth report IPCC...
In southern Portugal, artisanal octopus fisheries play an important socioeconomic role. Live crab bait in traps was used up to 2010 and banned 2012. Such regulation, based on co-management advice, not established under a scientific fundament. As result, long-standing controversy ensued with some fishing associations claiming that live increased effort exploitation rates therefore risked the stock status, while other fishers denied all these alleged impacts. The issue has been resolved so far...
Abstract Although Carcinus maenas as a species is widely studied, research focusing on fecundity still scarce. The main objective of this study was to evaluate size-fecundity relationships across different lagoons and estuaries, along the Portuguese coast, understand how local environment affects reproductive patterns. Between 2019 2020, ovigerous females were collected from Southern (Ria Formosa Ria de Alvor), Central (Rio Sado) Northern regions Aveiro) Portugal, each female estimated by...
Abstract The degree of exposure fishing communities to environmental changes can be partially determined by the vulnerability target species and landings composition. Hence, identifying that ecologically most contribute are key steps evaluate risk posed climate change. We analyse temporal variability in intrinsic sensitivity ecological Portuguese fisheries landings, considering proportions derived both from weights revenues. To account for diversification each fleet, we explored dependence...
Understanding ecological, and socio-economical vulnerabilities is fundamental towards developing implementing regional adaptation strategies to climate change. The Portuguese coast situated in a transition zone between temperate ecosystems the north, subtropical with Mediterranean characteristics, south, distinct oceanographic regions (north, centre, south), fish assemblages socioeconomic realities of communities across these regions. We develop framework assess fisheries vulnerability each...
ABSTRACT Estuarine fisheries are of high regional socio‐economic importance worldwide, by providing an important livelihood for many families. The Portuguese green crab ( Carcinus maenas ) fishery was assessed using a assessment to understand the and stock analysis determine exploitation status during 1960–2020. Fisher knowledge revealed that fishing family affair provided hundreds families directly targeting crabs, with catches exported Spain 1960–1990s, in later years, demand increased as...
Gonadal histology is a helpful tool to validate species' macroscopic maturity stages in fisheries biology. Regardless of the many studies on Carcinus maenas, there are still few concerning gonads tissue and description stages. In Portugal, information regarding this biology help support regulation crab fisheries, including minimum landing size, has not yet been defined. work, macro microscopic characteristics reproductive cycle C. oogenesis, spermatogenesis development along Portuguese coast...
Abstract In Algarve, southern Portugal, a fishery regulation was established forbidding the use of live crab as bait for octopus fishing. Such not under scientific fundament. The objective this work to identify if using affects fishery. Time series (1989–2015) were analysed in order calculate catch rates (as Landing Per Unit Effort or LPUE) and revenues revenue per unit effort RPUE) before after ban 2009 also by type (crab fish) ban. Overall, total annual fishing decreased result decreasing...
Larval development of Gobius xanthocephalus with descriptions the ontogeny main structures, changes in pigmentation patterns and allometric relationships are presented for first time. No previous G. larvae available therefore field collected were compared obtained under controlled conditions. The DNA adults, juveniles was order to validate identifications. overall developmental sequence agrees those described other gobies. Pigmentation were, however, distinct from sympatric Gobiidae allowing...
Understanding the relationship between environmental temperature and biological traits of organisms is fundamental to inferring potential impacts climate change. In case marine poikilotherm species, seawater one main driving forces processes, with consequences at higher levels organization such as population ecosystem. this study, we analysed differences in maximum carapace width (CWmax), size maturation, relative duration reproductive season for green crab (Carcinus maenas) along a...
Species with high economic relevance are widely studied in contrast low species such as Panopeus africanus, a small crab wide distribution along the eastern Atlantic coast, which remains poorly regarding to biological and ecological issues. Knowledge of reproductive patterns is essential understand populations dynamics life-cycle traits. The main objective present research was study P. africanus. population size structure, maturation stages gametogenic development aspect, at maturation,...