29 documents found, page 1 of 3
The roles of chemical cues in the life cycle of bivalves: spawning, settlement,...
Rato, Ana Cláudia Nunes; Joaquim, Sandra; Matias, Domitília; Hubbard, PeterSpawning, settlement, and metamorphosis represent the most challenging events for hatchery bivalve production. To enhance bivalve aquaculture, hatcheries have relied on a range of chemical compounds to induce these biological processes. Yet, despite the apparent importance of chemical cues, there is little knowledge on chemosensory systems and the role of chemical communication in bivalves. This review aims to ...
Electrophysiological responses of the clam (Ruditapes decussatus) osphradium to...
Rato, Ana Cláudia Nunes; Costa, Joana; Gonçalves, Diana; Matias, Domitília; Joaquim, Sandra; Hubbard, PeterChemical sensing of the surrounding environment is crucial for many aspects of bivalve biology, such as food detection and predator avoidance. Aquatic organisms strongly depend on chemosensory systems; however, little is known about chemosensory systems in bivalves. To understand how the carpet shell clam (Ruditapes decussatus) senses its surrounding chemical environment, we used an electrophysiological techniq...
Comparative transcriptome analysis reveals molecular damage associated with cry...
Anjos, Catarina; Duarte, Daniel Filipe Correia; Fatsini Fernández, Elvira; Matias, Domitília; Cabrita, ElsaThe Portuguese oyster Crassostrea angulata, a bivalve of significant economic and ecological importance, has faced a decline in both production and natural populations due to pathologies, climate change, and anthropogenic factors. To safeguard its genetic diversity and improve reproductive management, cryopreservation emerges as a valuable strategy. However, the cryopreservation methodologies lead to some damag...
Effect of the alveolate parasite Perkinsus olseni infection on sexual maturatio...
Fernández-Boo, Sergio; Duarte, Catarina; Guévélou, Eric; Sousa, Joana; Freitas, Rosa; Joaquim, Sandra; Costas, Benjamin; Magalhães, LuísaThe effect of Perkinsus olseni infection on the reproduction ability of clams has been underestimated so far. Although some studies found evidence of reduction of egg production and delay in gonad maturation after infection, the total effect of the infection is still unclear. In this study, Ruditapes decussatus clams from a naïve population were injected with two different doses of P. olseni parasites, a low do...
What do oysters smell? Electrophysiological evidence that the bivalve osphradiu...
Rato, Ana; Joaquim, Sandra; Matias, Domitília; Hubbard, PeterThe sensing of chemical cues is essential for several aspects of bivalve biology, such as the detection of food and pheromones. However, little is known about chemical communication systems in bivalves or the possible role of the osphradium as a chemosensory organ. To address this, we adapted an electrophysiological technique extensively used in vertebrates & mdash;the electro-olfactogram & mdash;to record from...
Assessment of larval quality of two bivalve species, Crassostrea angulata and C...
Anjos, Catarina; Duarte, Daniel; Diogo, Patrícia; Matias, Domitília; Cabrita, ElsaMarine bivalves are valuable resources, however, some shellfish populations are endangered due to factors such as anthropogenic pressure, pathologies or lack of reproduction synchrony. Portuguese oyster (Crassostrea angulata) and striped venus clam (Chamelea gallina) have high socio-economic value and their endangered natural populations require rehabilitation. Cryopreservation is a valuable method for the pres...
The impact of climate Change on bivalve farming: combined effect of temperature...
Rato, Ana; Joaquim, Sandra; Matias, Ana Margarete; Roque, Cláudia; Marques, António; Matias, DomitíliaEuropean clam (Ruditapes decussatus) is one of the most relevant emergent bivalve species from the aquaculture sector in Europe with high economic value. Climate changes represent a potential limiting factor to this activity, directly interfering with the survival and behavior of bivalves. Severe fluctuations in temperature along with periods of heavy rainfall or periods of drought that significantly change the...
Reproductive cycle of the golden carpet shell (Polititapes aureus) in the Ria F...
Moura, Paula; Matias, Ana Catarina; Vasconcelos, Paulo; Roque, Cláudia; Joaquim, Sandra; Matias, Domitília; Gaspar, MiguelThe present study described the gametogenesis and assessed the pattern of energy storage throughout the reproductive cycle of the golden carpet shell (Polititapes aureus) from the Ria Formosa lagoon (southern Portugal). Monthly sampling was performed for two years (March 2016–February 2018) and the study was based on gonad histology, complemented by the estimation of the mean gonadal index, body condition index...
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.