Results 81 to 90 of about 1,229 (195)

Reproductive Biology and Biochemical Composition of the Reared European Clam Ruditapes decussatus (Mollusca: Bivalvia) in Oualidia Lagoon, Morocco

Oceans
The reproductive cycle of the European clam Ruditapes decussatus reared in suspended double-net trays in the Oualidia Lagoon was investigated from October 2017 to February 2019.
Mouhcine Medlouh, Ibtissam Doukilo, Ahmed Errhif, Mohamed Id Halla, Oum Keltoum Belhsen   +4 more
doaj   +1 more source

Physiological and behavioural responses of Ruditapes decussatus to roundup and reldan

Egyptian Journal of Biology, 2005
The clam Ruditapes decussatus was used as a bioindicator for pollution to determine the toxicity of a herbicide (48% glyphosate, ‘roundup') and an insecticide (50% chlorpyrifosmethyl, ‘reldan'). After estimating LC50 (µl L-1) and LT50 (days) of both organophosphrous pesticides over 60 days, the impact of ½ LC50 of roundup (1.1µl L-1) and reldan (0.6 µl
El-Shenawy, Nahla S., Abdel-Nabi, Ismail M., Moawad, Tarak I., Taha, Inas A.   +3 more
openaire   +2 more sources

Carry‐Over Effects of Broodstock Conditioning on the Salinity Tolerance of Embryos of the New Zealand Geoduck (Panopea zelandica)

Aquaculture Research, Volume 2024, Issue 1, 2024.
The New Zealand geoduck (Panopea zelandica) has seen considerable interest from the NZ aquaculture industry. A major bottleneck in culturing P. zelandica is early life stages mortality (e.g., embryo). Therefore, in this study, we investigated the embryonic performance and their transition to the first feeding larval stage (D‐veliger) under different ...
Shaneel S. Sharma, Andrea C. Alfaro, Norman L. C. Ragg, Leonardo N. Zamora, E. Ring   +4 more
wiley   +1 more source

Comparação da biologia reprodutiva da amêijoa-boa, Ruditapes decussatus, e da amêijoa japónica, Ruditapes philippinarum, da Lagoa de Óbidos, Leiria, Portugal [PDF]

, 2018
A amêijoa-boa, R. decussatus, em Portugal é um recurso de elevada relevância, sendo por isso importante a introdução de áreas para aumentar a sua produção sustentável.
Duarte, Isabel Maria Pereira
core  

The International Manila and European Clams Conference: Euro‐Mediterranean overview and future directions to support sustainable clam fisheries★

Aquatic Living Resources
The SYMPA symposium was initiated to improve knowledge and promote information exchange among stakeholders involved in clam fisheries and aquacultures.
Riquet Florentine, Sanchez Florence, Antajan Elvire, Bru Noëlle, Caill‐Milly Nathalie   +4 more
doaj   +1 more source

Enhanced trace element concentrations in tissues of the clam Ruditapes decussatus transplanted to areas influenced by human activities (Ria Formosa, Portugal)

Scientia Marina, 2017
To examine the extent to which human activities near the Ria Formosa coastal lagoon influence the accumulation of trace elements (TE) in Ruditapes decussatus, individuals were transplanted from a natural bank located in the lower lagoon to three sites ...
Maria João Botelho, Sara T. Costa, Domitília Matias, Florbela Soares, Sandra Joaquim, Carlos Vale   +5 more
doaj   +1 more source

Response of two species of clams, Ruditapes decussatus and Venerupis pullastra, to starvation: Physiological and biochemical parameters

, 2007
9 páginas, 3 tablas,3 figurasAdult specimens of two species of clams, Ruditapes decussatus and Venerupis pullastra, were starved for 84 days to determine the effect of starvation on their metabolism.
Labarta, Uxío, Labarta, U. (Uxío), Pérez-Camacho, A. (Alejandro), Fernández-Reiriz, María José, Fernández-Reiriz, M.ªJ. (María José), Albentosa, Marina, Pérez-Camacho, Alejandro, Albentosa, M. (Marina)   +7 more
core   +1 more source

Physiological responses and scope for growth of Ruditapes decussatus from Ria Formosa, southern Portugal, exposed to increased ambient ammonia

Scientia Marina, 2004
In this study we investigate the effects of exposure to increased ambient ammonia-N concentrations as a cause of decreased scope for growth and mortality of R.decussatus during the summer months in Ria Formosa, southern Portugal.
Paula Sobral, Sandra Fernandes
doaj   +1 more source

Diversity of Vibrionaceae associated with Ruditapes decussatus hatchery in Tunisia

Annals of Microbiology, 2011
The diversity of Vibrionaceae was investigated in a Ruditapes decussatus hatchery located in the Tunisian coastal marine waters. Quantitative study of the bacterial flora, conducted in different compartments of the hatchery, revealed that the total bacterial count (TVC) and the presumptive Vibrio (PVC) increased during the summer, due to the rise of ...
Badreddine Mechri, Amel Medhioub, Mohamed Nejib Medhioub, Mahjoub Aouni   +3 more
openaire   +1 more source

Study the effect of low pH on Ruditapes decussatus (Mollusca: Bivalvia) [PDF]

, 2021
The grooved carpet shell clam (Ruditapes decussatus) is one of the most economically essential mollusks in Mediterranean lagoons and sandy beaches, with fisheries and aquaculture both contributing to its abundance. The goal of this research is to see how varying amounts of acidity affect this calcifying organism. 420 ppm (ambient control), 550 ppm, 750
openaire   +1 more source