4 documents found, page 1 of 1
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...
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...
The Biological Assessment and Rehabilitation of the World’s Rivers: An Overview
Feio, MJ; Hughes, RM; Callisto, M; NIchols, SJ; Odume, ON; Quintella, B; Mendes, AThe biological assessment of rivers i.e., their assessment through use of aquatic assemblages, integrates the effects of multiple-stressors on these systems over time and is essential to evaluate ecosystem condition and establish recovery measures. It has been undertaken in many countries since the 1990s, but not globally. And where national or multi-national monitoring networks have gathered large amounts of d...