6 documents found, page 1 of 1
Recent and consecutive records of the Atlantic Blue Crab (Callinectes sapidus R...
Vasconcelos, Paulo; Carvalho, Andre N.; Pilo, David; Pereira, Fabio; Encarnação, João; Gaspar, Miguel; Teodosio, MariaThe present study reports six new and consecutive records of the Atlantic blue crab (Callinectes sapidus Rathbun, 1896) in the southern coast of Portugal. Specimens were caught during less than two months (22nd November 2018 - 18th January 2019) as bycatch of trammel nets operated by small-scale fishing boats in scattered locations along the Algarve coast and in the Ria Formosa lagoon. Four adult males (221-236...
Reproductive cycle of the commercially harvested sea urchin (Paracentrotus livi...
Machado, Ines; Moura, Paula; Pereira, Fabio; Vasconcelos, Paulo; Gaspar, MiguelHarvested populations of the sea urchin (Paracentrotus lividus) from the northwestern (Carreco) and southwestern (Aljezur) coasts of Portugal were surveyed to describe the species reproductive cycle and assess possible relationships with geographical location and seawater temperature. Individuals were sampled monthly to analyze gonad histology, mean gonadal index (GI), and gonadosomatic index (GSI) during 2 con...
Tanaidaceans (Crustacea: Peracarida: Apseudidae) from southern Portugal with de...
Carvalho, Andre N.; Pereira, Fabio; Piló, David; Gaspar, Miguel; Esquete, PatriciaThis study describes Apseudopsis formosus sp. nov., a new apseudomorph tanaidacean species from the Ria Formosa lagoon (southern Portugal). Species description was based on 223 individuals (22 juveniles, 60 males and 141 females), comprising diverse developmental stages (juveniles II, males I and II, preparatory, copulatory and intermediate females). The total length of the studied population ranged from 2.2 to...
Socio-economic, operational and technical characterisation of the harvesting of...
Carvalho, Andre N.; Vasconcelos, Paulo; Pilo, David; Pereira, Fabio; Gaspar, MiguelThe present study characterised the socio-economic, operational and technical aspects of harvesting the gooseneck barnacle (Pollicipes pollicipes) along the southwestern coast of Portugal. For this purpose, face-to-face interviews were conducted with commercial harvesters of the two most representative fishery associations (covering 51% licensed harvesters) in the area of the Parque Natural do Sudoeste Alenteja...
Habitat structure shaping megabenthic communities inhabiting subtidal soft bott...
Rufino, Marta M.; Pereira, Alexandre M.; Pereira, Fabio; Moura, Paula; Vasconcelos, Paulo; Gaspar, MiguelThe present study analysed the megabenthic diversity in subtidal soft bottoms and assessed the main environmental drivers of megabenthic community organisation along the Algarve coast (southern Portugal). We tested the hypothesis that megabenthic communities respond to the same environmental drivers than macrofauna. We found that similar to macrofauna, megafaunal communities were organised in relation to the de...
Quantum Particle Swarm Optimization Applied to Distinct Remuneration Approaches...
Pereira, Fabio; Soares, João; Faria, Pedro; Vale, ZitaThe development of demand response programs has been allowing to improve power system performance in several ways, both in terms of the management of electricity markets, as well as regarding benefits in its operation. In order to model the remuneration for the participation of consumers in the scheduling of resources, this paper proposes a methodology based on the use of four incentive-based tariffs for the re...