5 documents found, page 1 of 1
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 ...
Physical and chemical tagging methods for the sea urchin Paracentrotus lividus ...
Santos, PM; Quintella, B; Jacinto, David; Gomes, A; Saldanha, C; Lourenço, S; Lopes, P; Correia, MJ; Mateus, D; Cruz, T; Pombo, A; Costa, JLThe sea urchin Paracentrotus lividus (Lamarck, 1816) (Echinodermata: Echinoidea) is an important economic resource in Europe, but intense harvesting has led to the collapse of several natural populations. Echinoculture, associated with restocking and stock enhancement practices, is an alternative to this problem. In these procedures, reliable individual identification through tagging is a valuable source of inf...
Polychaete annelids as live bait in Portugal: harvesting activity in brackish w...
Cabral, S; Alves, AS; Castro, N; Chainho, P; Sá, E; Cancela da Fonseca, L; Fidalgo e Costa, P; Castro, J; Canning-Clode, J; Pombo, A; Costa, JLPolychaete annelids are some of the most heavily harvested invertebrates collected in coastal areas and estuaries for their economic value as live fishing bait or as food supplement in aquaculture activities. However, information on bait digging in Portugal is scarce or incomplete. Thus, the present study aimed at investigating the bait digging activity in the four most relevant brackish water systems in Portug...
Functional analysis of vif protein shows less restriction of human immunodefici...
Ribeiro, AC; Silva, AME; Silva, AME; Santa-Marta, M; Pombo, A; Moniz-Pereira, J; Goncalves, J; Barahona, IViral infectivity factor (Vif) is one of the human immunodeficiency virus (HIV) accessory proteins and is conserved in the primate lentivirus group. This protein is essential for viral replication in vivo and for productive infection of nonpermissive cell