Results 31 to 40 of about 518 (162)

Assessment of Risks Associated with Extreme Climate Events in Small-Scale Bivalve Fisheries: Conceptual Maps for Decision-Making Based on a Review of Recent Studies

Journal of Marine Science and Engineering, 2023
Extreme climate events, such as heatwaves and torrential rain, affect the physiology and functioning of marine species, especially in estuarine habitats, producing severe ecological and socioeconomic impacts when the affected species support important ...
Rula Domínguez, Celia Olabarria, Elsa Vázquez   +2 more
doaj   +1 more source

Metallothioneins in the clam Ruditapes decussatus: an overview [PDF]

Analusis, 2000
coastal waters. Due to its economic importance it is extensively cultured in many countries, and particularly in Portugal where its production represents > 80 % of total shellfish production. The selection of the clam R. decussatus as a bioindicator was a consequence of its economic importance and the need to use a filter-feeding bivalve to evaluate ...
Bebianno, Maria João, Serafim, MA, Simes, Dina   +2 more
openaire   +2 more sources

Toxicity of silver nanoparticles on the clam Ruditapes decussatus assessed through biomarkers and clearance rate

Materials Research Express, 2021
The current bioassay aims the evaluation of the ecotoxicity of the silver nanoparticles (NPs) (100 and 200 μ g l ^−1 ) on Ruditapes decussatus after 48 h and 7 days of its exposure.
Souhail Elyousfi, Mohamed Dellali, Ali Mezni, Manel Ben Ali, Amor Hedfi, Mohammed Almalki, Amine Mezni, Melissa Rohal-Lupher, Aida Dervishi, Fehmi Boufahja   +9 more
doaj   +1 more source

Marine pollution by some heavy metals and physiological response of Ruditapes decussatus [PDF]

Journal of Bioscience and Applied Research, 2018
Bivalves can accumulate toxicants such as heavy metals in their tissues, for this reason, they are considered as good bio-indicators for water quality. The risk is increased due to eating these clams raw or lightly cooked.
G. El Khodary, E. Radwan, M. Elghazaly, D. El Bahnasawy   +3 more
doaj   +1 more source

An infection of Ruditapes decussatus (Bivalvia) by Rickettsia [PDF]

Aquaculture, 1987
The authors report the presence of a Rickettsia in Ruditapes decussatus from natural populations of the Algarve (Portugal). Light microscopic shows infections of varying importance in gill tissues. Some enclose small procaryotic colonies (cp) scattered in all lamellae; in others, the colonies are scarce and hypertrophic (100 mu m).
Mialhe, Eric, Chagot, Dominique, Boulo, Viviane, Comps, Michel, Ruano, Francisco, Grizel, Henri   +5 more
openaire   +1 more source

Pre-induction of Hsp70 expression to protect the grooved carpet shell clam, Ruditapes decussatus, against Micrococcus luteus: A trained immunity strategy

Egyptian Journal of Aquatic Research, 2020
Bacterial pathogens cause disease-associated mortality in Ruditapes decussatus, a model bivalve for aquaculture in Egypt. In this study, it was hypothesized that trained immunity could be achieved to enhance disease resistance against Micrococcus luteus ...
Eman El-Wazzan, Doaa A. Ghareeb, Bahaa Abdella   +2 more
doaj   +1 more source

Isolation and characterisation of metallothionein from the clam Ruditapes decussatus [PDF]

Aquatic Toxicology, 2003
Metallothioneins (MT) were obtained after purification from metal-exposed clams (Ruditapes decussatus) using gel-permeation and ion-exchange chromatography. Four cadmium-metallothioneins (CdMTs) were resolved by ion-exchange chromatography and they all had similar molecular weights, high cadmium content and an absorption spectra indicative of the ...
Simes, D, Bebianno, Maria João, Moura, José J. G.   +2 more
openaire   +3 more sources

Organic Phases in Bivalve (Arctica Islandica) Shells: Their Bulk and Amino Acid Nitrogen Stable Isotope Compositions

Geochemistry, Geophysics, Geosystems, Volume 24, Issue 10, October 2023., 2023
Abstract The stable nitrogen isotope composition of bivalve shell organics serves as a proxy for nitrogen fluxes in modern and past ecosystems. An essential prerequisite to reconstruct environmental variables from δ15N values of bivalve shells is to understand if pristine isotope signals can be retrieved from shell organics after sample pretreatment ...
Qian Huang, Oluwatoosin B. A. Agbaje, Martina Conti, Bernd R. Schöne   +3 more
wiley   +1 more source

Ubiquitination and carbonylation as markers of oxidative-stress in Ruditapes decussatus [PDF]

Marine Environmental Research, 2008
Environmental pollutants, such as metals, are widespread in aquatic environments and can lead to the formation of reactive oxygen species (ROS). ROS are highly toxic in marine species since they can cause serious reversible and irreversible changes in proteins including ubiquitination and modifications such as carbonylation. This study aimed to confirm
Chora, Suze, McDonagh, Brian, Sheehan, David, Starita-Geribaldi, Mireille, Roméo, Michèle, Bebianno, Maria João   +5 more
openaire   +3 more sources

Energy regimes help tackle limitations with the prehistoric cultural‐phases approach to learn about sustainable transitions: Archaeological evidence from northern Spain

Journal of Quaternary Science, Volume 38, Issue 6, Page 921-937, August 2023., 2023
ABSTRACT Human societies face challenges in transitioning towards low‐carbon economies and sustainable management of land use and natural resources. Documenting and learning from past transitions helps policy‐makers cope with such challenges. The agricultural revolution in Cantabrian Spain (ca.
Alexandre Martinez, Sjoerd Kluiving, José Muñoz‐Rojas, César Borja Barrera, Pablo Fraile Jurado, María Esperanza Roldán Muñoz, Juan Carlos Mejías‐García   +6 more
wiley   +1 more source