11 documents found, page 1 of 2
An acclimatization period in a cage promotes site fidelity of hatchery-reared d...
Silva, AF; Castro, JJ; Pereira, E; Marques, JP; Silva, T; Lino, PG; Candeias-Mendes, A; Pousão-Ferreira, P; Pinto, B; Costa, JL; Almeida, PRThe influence of an in-situ acclimatization period of five weeks, seeking the settlement and fidelity of hatchery-reared dusky groupers (Epinephelus marginatus) to the release sites in restocking actions, was tested using acoustic biotelemetry. Eight tagged adult groupers were submitted to the wild conditions in a fish farm cage, while seven remained in the hatchery and tagging location until they were all rele...
“Existe Uma Época Do Ano Para Consumir Achigã (Micropterus salmoides)? Um Estud...
Almeida, M.; Jorge, A.; Machado, MG; Alexandre, CM; Almeida, PR; Lança, MJRESUMO Introduzido na segunda metade do século XX em Portugal, o achigã (Micropterus salmoides) pode ser atualmente encontrado na maior parte das albufeiras e reservatórios da Europa Meridional, sendo uma espécie invasora em Portugal e restantes regiões mediterrânicas. Cada vez mais em Portugal, o achigã é uma das espécies mais procuradas em pesca desportiva e, como tal, uma espécie com potencial dinamizador de...
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”.
Can mitochondrial malondialdehyde content be a useful tool to evaluate sea lamp...
Candeias, Marta; Alves-Pereira, I; Lança, MJ; Ferreira, AF; Quintella, BR; Almeida, PR; Ferreira, RThe sea lamprey is an anadromous species that migrates twice during its life cycle between freshwater and seawater. Microphagous larvae generally spend 4–5 years burrowed in the substrate of rivers and streams before undergoing metamorphosis that ends with the beginning of the juvenile trophic migration. Once metamorphosis is complete, sea lamprey juvenile downstream migrants are fully tolerant to seawater sali...
Can the mitochondrial malondialdehyde content be an useful tool to distinguish ...
Candeias, M; Alves-Pereira, I; Lança, MJ; Ferreira, AF; Quintella, BR; Almeida, PR; Ferreira, RThe sea lamprey is an anadromous species that migrates twice during its life cycle between freshwater and seawater. Microphagous larvae generally spend 4–5 years burrowed in the substrate of rivers and streams before undergoing metamorphosis that ends with the beginning of the juvenile trophic migration. Once metamorphosis is complete, sea lamprey juvenile downstream migrants are fully tolerant to 35 PSU seawat...
Hepatic mitochondrial content in malondialdehyde may be a marker of sea lamprey...
Candeias, M; Alves-Pereira, I; Lança, MJ; Ferreira, AF; Quintella, BR; Almeida, PR; Ferreira, RThe atrazine attracts special attention as pollutant because of itspersistence in the aquatic environment. Although this herbicide has been studied in teleost, its toxicity in the sea lamprey, Petromyzon marinus is still poorly understood. Oxidative stress may occur if chemical pollutants contribute to block the capacity of mitochondria to generate ATP with continuous production of reactive oxygen species (ROS)...
Monitoreo nacional de la nosemosis - resultados previos del proyecto portugal, ...
Pires, SMA; Murilhas, AM; Almeida, PR; Valério, MJConsidering the growing number of reports implicating Nosema ceranae in colony morbidity/mortality, it is relevant to clarify the current epidemiology of Nosemosis in Portugal beekeeping context, pinpointing the etiologic agents to the species level and, eventually, identifying possible intra-specific types. About 2% of the registered Portuguese apiaries were sampled in two consecutive years (2011 and 2012). Ap...
Main reasons for honey bee colony mortality in Portugal. A snapshot of beekeepe...
Pires, S; Murilhas, AM; Almeida, PR; Valério, MJ; Gonçalves, MTo investigate claims of abnormally high honey bee colony mortality in Portugal during 2011, a survey was carried out via telephone interviews. It included 662 (≈ 4%) registered Portuguese beekeepers and followed the basic 'Coloss' questionnaire. Interviewees were selected accounting for total numbers of colonies and the geographical distribution of their apiaries across the country. The 'sampling grid' was set...
Nosema distribution across Portugal. Results from the first nationwide survey (...
Pires, S; Murilhas, AM; Almeida, PR; Valério, MJ; Gonçalves, MA nationwide field sampling exercise was launched in 2011, to address mounting anecdotal evidence of atypically high honey bee colony mortalities of unexplained origin occurring throughout Portugal. The first approach was to contact 662 beekeepers (≈ 4% of the registered Portuguese beekeepers), via telephone interviews with a view to formulating an 'educated guess' regarding the cases where Nosema apis / Nosema...
Different profile of hepatic biotransformation system detected in the Petromyzo...
Candeias, M; Alves-Pereira, I; Lança, MJ; Ferreira, AF; Quintella, BR; Almeida, PRBiotransformation enzymes catalyze oxidation of a diversity of xenobiotics, doing a key role in its detoxication. CYP1A and GST expression, induced by pollutants, seems to be highly conserved across vertebrate taxa. Since this system acts as a defense mechanism, the intra or interspecies differences have been attributed to adaptations to different habitats and trophic strategies. Thus, the main goal of this stu...