9 documents found, page 1 of 1
Recovery after exploitation of stalked barnacles is facilitated by the presence...
Gómez‑del Campo, V; Arrontes, J; Cruz, T; Vázquez, E; Macho, G; Thiébaut, E; Geiger, K; Fernandes, J; Jacinto, D; Aguión, A; Silva, T; Mateus, DWe have followed the recovery of gaps produced either by harvesters or by scientists in stands of stalked barnacle (Pollicipes pollicipes) during two years in four regions of Europe (SW Portugal, Galicia and Asturias in Spain and Brittany in France; n = 423 gaps), which was extended to four years in Asturias (n = 252 gaps). The presence of adult conspecifics in the margins of the gaps increased by at least four...
Temporal and spatial variability in the isotopic composition of sea urchins alo...
Rocha, A C; Ressurreição, M; Baeta, A; Veríssimo, H; Camarão, B; Fernández-Boo, S; Pombo, A; Lourenço, S; Gomes, A S; Santos, P M; Jacinto, D; Mateus, DParacentrotus lividus is a sea urchin widely distributed throughout Mediterranean basin and Atlantic coast, highly appreciated for its gonads. It is broadly distributed along the Portuguese coast and its exploitation has potential to grow. Nevertheless, fluctuations on nutritional composition and sensory traits of P. lividus according to each habitat and seasonality are still little understood. Stable isotopes ...
Pilot studies for stock enhancement of purple sea urchins (Paracentrotus lividu...
Correia, MJ; Mega Lopes, P; Santos, PM; Jacinto, D; Mateus, D; Maresca, F; Quintella, B; Cruz, T; Sílvia, L; Pombo, A; Costa, JLIn the framework of stock enhancement, field experiments were conducted between March and July 2021 in rocky shores of Central Portugal to test the usefulness of refuges and calcein marking for juvenile sea urchins releases. Individuals with 10–20 mm in test diameter were captured in nature and tagged through immersion in a calcein bath with a concentration of 150 mg L−1, during 48 hr. Artificial shelters were ...
Relatório científico da Expedição Oceano Azul - Cascais | Mafra | Sintra
Cabral, H; Afonso, CML; Almada, F; Almeida, S; Alonso, H; Andrade, J; Anjos, M; Batista, M; Bentes, L; Carvalho, AC; Celestino, S; Coelho, PD; Coxey, MA zona marítima dos concelhos de Cascais, Mafra e Sintra tem sido pouco estudada, não obstante situar-se frente a grandes centros urbanos e ser alvo de diversos usos e atividades humanas. Algumas das suas características geográficas e dos seus elementos notáveis ao nível dos fundos marinhos acrescem o seu interesse científico e patrimonial. Com o objectivo de ampliar o conhecimento científico sobre a biodiversi...
A large‑scale comparison of reproduction and recruitment of the stalked barnacl...
Aguión, A; Cruz, T; Acuña, JL; Broudin, C; Castro, JJ; Davoult, D; Dubert, J; Fernandes, JN; Geiger, KJ; Jacinto, D; Mateus, D; Muñiz, C; Nolasco, RUnderstanding large-scale spatial and temporal patterns of marine populations is a central goal in ecology, which has received renewed attention under climate change. However, few studies explore the large-scale dynamics of populations using standardized protocols and during the same time frames. We studied the phenology and intensity of reproduction and recruitment for the intertidal stalked barnacle Pollicipe...
Pedunculate cirripedes of the genus Pollicipes: 25 years after Margaret Barnes'...
Cruz, T; Jacinto, D; Seabra, MI; Van Syoc, RJ; Power, AM; Macho, G; Sousa, A; Castro, JJ; Hawkins, SJTwenty-five years ago, Margaret Barnes reviewed the genus Pollicipes published in Oceanography and Marine Biology: An Annual Review. Our review complements and updates Barnes (1996). An endemic species of Pollicipes, P. caboverdensis, from Cape Verde Islands, has since been described, joining the three previously known extant species (P. polymerus, northeastern Pacific Ocean, P. elegans, tropical eastern Pacifi...
Catálogo da exposição “Áreas Marinhas Protegidas da Costa Sudoeste”
Quintella, BR; Horta e Costa, B; Pinto, B; Silva, AF; Sousa, I; Antunes, M; Coelho, P; Costa, JL; Almeida, PR; Marques, JP; Teodoro, PF; Costa, ACatálogo da exposição “Áreas Marinhas Protegidas da Costa Sudoeste”.
Modulation of di erent kelp life stages by herbivory: compensatory growth versu...
Franco, J; Wernberg, T; Bertocci, I; Jacinto, D; Maranhão, P; Pereira, T; Martinez, B; Arenas, F; Sousa-Pinto, I; Tuya, FPartitioning the e ects of herbivory on di erent life stages of primary producers is key to understanding the population-wide consequences of herbivory. We assessed the performance of microscopic (MiS <1 mm) juveniles, macroscopic (MaS) juveniles and adult kelp (Laminaria ochroleuca) under contrasting herbivory regimes through a herbivore exclusion eld experiment. The abundance of MiS and the survival of MaS de...
The state of the fishery, conservation and management of the stalked barnacle P...
Cruz, T; Jacinto, D; Sousa, A; Penteado, N; Pereira, D; Fernandes, JN; Silva, T; Castro, JJThe stalked barnacle Pollicipes pollicipes is the most important intertidal economical resource in Portugal. The assessment of the state of the fishery, conservation and management of P. pollicipes in Portugal was made for the first time in three regions with different regulations regarding this fishery: two marine protected areas (“Reserva Natural das Berlengas”, RNB; and “Parque Natural do Sudoeste Alentejano...