16 documents found, page 1 of 2
ABUNDANCE, DISTRIBUTION AND POPULATION STRUCTURE OF THE COMMON COCKLE Cerastode...
Maia, Francisco; Ruano, Francisco; Gaspar, MiguelThe common cockle (Cerastoderma edule) is currently the most important shellfish resource exploited in Ria de Aveiro. In recent years, surveys have been conducted by the Portuguese Institute of the Sea and Atmosphere to provide data on stock status for management purposes. The present work presents the results of the 2019 cockle survey, as well as the stock trends over the years. Results revealed that Cerastode...
Catalogue of parasites and diseases of the common cockle Cerastoderma edule
de Montaudouin, Xavier; Arzul, Isabelle; Cao, Asunción; Carballal, Maria Jesus; Chollet, Bruno; Correia, Simão; Cuesta, Jose; Culloty, SarahSem resumo disponível.
Atlas des parasites et maladies de la coque commune Cerastoderma edule
de Montaudouin, Xavier; Arzul, Isabelle; Cao, Asunción; Carballal, Maria Jesus; Chollet, Bruno; Correia, Simão; Cuesta, Jose; Culloty, SarahSem resumo disponível.
Inventario de parasitos e enfermidades do berberecho Cerastoderma edule
de Montaudouin, Xavier; Arzul, Isabelle; Cao, Asunción; Carballal, Maria Jesus; Chollet, Bruno; Correia, Simão; Cuesta, Jose; Culloty, SarahSem resumo disponível.
Catálogo de parasitas e patologias do berbigão-vulgar Cerastoderma edule
de Montaudouin, Xavier; Arzul, Isabelle; Cao, Asunción; Carballal, Maria Jesus; Chollet, Bruno; Correia, Simão; Cuesta, Jose; Culloty, SarahSem resumo disponível.
NOTE OF A PATHOLOGICAL STUDY OF THE COPEPOD PARASITE Nicothoë astaci IN EUROPEA...
Ruano, Francisco; Monteiro, LuísaThe occurrence of an infestation of European lobsters by the copepod parasite Nicothoe astaci is reported for the first time in Portugal. A short description of the morphology of the parasite is done. Pathogenic analysis of the host reveal large eroded areas of gill filaments with necrotic scars deep into the gill axis, caused by the parasite. The internal organs show an empty digestive tract, with a discoloure...
Preliminary studies on the lifecycle of Catostylus tagi: differentiation betwee...
Lisboa, Raquel; Mascarenhas, Paulo; Gil, Fátima; Ruano, Francisco; Ladeira, Carina; Morais, ZildaJellyfish has been proposed as a source in drug development to treat diseases such as arthritis and hypertension. Catostylus tagi, the sole European Catostylidae, is an edible Scyphozoa which occurs in summer at Tagus and Sado estuaries. Some aspects of its application in health sciences have already been studied. This assay aimed to investigate its sexual differentiation by morphological characteristics.
Occurrence and characterization of pearls from oysters of the genus Crassostrea
Batista, Frederico; Grade, Ana; Power, Deborah; Ruano, Francisco; Harper, Elizabeth M.The occurrence of pearls in the true' oysters, the Ostreioidea, is poorly documented despite being the most produced mollusc species in the world. Oysters of the Crassostrea genus were collected in two different sites in southern Portugal where both Crassostrea angulata and C. gigas are present, namely in: (1) the Ria Formosa lagoon where pearls were not observed (N = 446); and (2) the Guadiana estuary where pe...
Asynchrony in settlement time between the closely related oysters Crassostrea a...
Batista, Frederico; G Fonseca, Vera; Ruano, Francisco; Boudry, PierreThe Portuguese oyster Crassostrea angulata and the Pacific oyster Crassostrea gigas are very closely related species originating from Asia that were introduced in Europe. The objectives of the present study were to determine if there is asynchrony in settlement time of C. angulata and C. gigas larvae in an area where both taxa coexist and if hybridization between the two species occurs throughout the breeding s...
New insights about the introduction of the Portuguese oyster, Crassostrea angul...
Lallias, Delphine; Power, Deborah; Ruano, Francisco; Leitão, Alexandra; Drago, Teresa; King, Jonathan W.; Boudry, Pierre; Batista, FredericoIt is commonly presumed that the Portuguese oyster Crassostrea angulata was introduced into the North East (NE) Atlantic from Asia. The analysis of the nucleotide sequence of a highly polymorphic non-coding mitochondrial region (major noncoding region - MNR) of C. angulata samples collected in Europe (Portugal), Africa (Morocco) and Asia (Shantou and Taiwan) provided new insight into the introduction of this sp...