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Reproductive effort affects cellular response in the mantle of Nodipecten subnodosus scallops exposed to acute hyperthermia.
Comp Biochem Physiol A Mol Integr Physiol
January 2025
Centro de Investigaciones Biológicas del Noroeste (CIBNOR), Instituto Politécnico Nacional 195, Col. Playa Palo de Santa Rita Sur, La Paz 23096, B.C.S, Mexico. Electronic address:
Article Synopsis
- Temperature impacts energy metabolism in marine ectotherms, leading to mass mortality during high reproductive energy demands.
- The study focused on the mantle of the scallop N. subnodosus to understand how it responds to acute hyperthermia during different reproductive stages (late gametogenesis in spring and ripe gonads in summer).
- Results showed varied cellular responses: spring scallops enhanced metabolic activity to maintain energy levels, while summer scallops exhibited reduced energy reserves and increased anaerobic metabolism, indicating seasonal adaptations to thermal stress.
Energy metabolism of juvenile scallops Nodipecten subnodosus under acute increased temperature and low oxygen availability.
Comp Biochem Physiol A Mol Integr Physiol
April 2023
Centro de Investigaciones Biológicas del Noroeste, S. C. (CIBNOR), La Paz, B.C.S, Mexico. Electronic address:
High temperature increases energy demand in ectotherms, limiting their physiological capability to cope with hypoxic events. The present study aimed to assess the metabolic tolerance of juvenile Nodipecten subnodosus scallops to acute hyperthermia combined with moderate hypoxia. A previous study showed that juveniles exhibited a high upper temperature limit (32 °C), but the responses of juveniles to combined hyperthermia and low dissolved oxygen are unknown.
View Article and Find Full Text PDFEffects of microplastics and mercury in the freshwater bivalve Corbicula fluminea (Müller, 1774): Filtration rate, biochemical biomarkers and mercury bioconcentration.
Ecotoxicol Environ Saf
November 2018
ICBAS - Institute of Biomedical Sciences of Abel Salazar, University of Porto, Department of Populations Study, Laboratory of Ecotoxicology, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Research Group of Ecotoxicology, Stress Ecology and Environmental Health, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal. Electronic address:
The main objectives of this study were to investigate the effects of a mixture of microplastics and mercury on Corbicula fluminea, the post-exposure recovery, and the potential of microplastics to influence the bioconcentration of mercury by this species. Bivalves were collected in the field and acclimated to laboratory conditions for 14 days. Then, a 14-day bioassay was carried out.
View Article and Find Full Text PDFGenetic structure of around Chinese waters as indicated by nuclear DNA variations (Mollusca, Cephalopoda).
Zookeys
July 2018
Department of Animal Science and Aquaculture, Dalhousie University, Canada.
is an economically important resource commonly found in Chinese coastal waters. The nuclear gene (RD and ODH) approach of investigation has not reported in this species. Rhodopsin (RD) and octopine dehydrogenase (ODH) genes were used to elaborate the genetic structure collected from eight localities ranging from the northern to the southern coast of China.
View Article and Find Full Text PDFTime Course of Metabolic Capacities in Paralarvae of the Common Octopus, , in the First Stages of Life. Searching Biomarkers of Nutritional Imbalance.
Front Physiol
June 2017
Centro Oceanográfico de Canarias, Instituto Español de OceanografíaSanta Cruz de Tenerife, Spain.
The culture of the common octopus () is promising since the species has a relatively short lifecycle, rapid growth, and high food conversion ratios. However, recent attempts at successful paralarvae culture have failed due to slow growth and high mortality rates. Establishing an optimal nutritional regime for the paralarvae seems to be the impeding step in successful culture methods.
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