A bioaccumulation model was developed to simulate the PCB contamination in the sea bass food web from the Seine Estuary. The model relies upon a contaminant mass balance budget for each biological species. Biological processes determine the extent of bioaccumulation: respiration and feeding rates control the uptake of contaminants whereas excretion, spawning, and growth act on the chemicals removal. A step-by-step modelling approach was followed. A first version was a steady-state model validated for the bioaccumulation processes. In the second version seasonal variation was taken into account, and finally in the third version, the model was coupled with a population dynamics model to describe PCB contamination in each age class.
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http://dx.doi.org/10.1016/s0025-326x(01)00082-0 | DOI Listing |
Animals (Basel)
January 2025
College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China.
This research aimed to explore the impact of tea polyphenol (TP) supplementation on the development, antioxidant properties, immune responses, and gut wellness in largemouth bass (, LMB). Four diets with varying levels of TPs (0.00%, 0.
View Article and Find Full Text PDFAnimals (Basel)
January 2025
Institute of Fisheries, Guizhou Academy of Agricultural Sciences, Guiyang 550025, China.
The experiment was aimed at examining the influence of adding emodin to feeds on the growth performance, liver immunity, and resistance against infection among juvenile largemouth basses and other potential mechanisms. A total of 540 fish (45 ± 0.3 g) were randomly divided into 6 diets, including EM-0, EM-250, EM-500, EM-1000, EM-2000, and EM-4000 diets, in which 0, 250, 500, 1000, 2000, and 4000 mg kg emodin was added.
View Article and Find Full Text PDFAnimals (Basel)
January 2025
College of Fisheries, Southwest University, Chongqing 400715, China.
Largemouth bass (LMB, ), a commercially important farmed fish, is vulnerable to heat stress. Breeding heat-resistant LMB is highly desirable in the face of global warming. However, we still lack an efficient method to assess the heat resistance of LMB.
View Article and Find Full Text PDFAntioxidants (Basel)
January 2025
Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China.
A seven-week trial was designed to evaluate the effects of dietary seaweed polysaccharide (SP) supplementation on the growth performance and physiological health of largemouth bass. The results reveal that the 0.05SP group showed the best growth performance.
View Article and Find Full Text PDFBMJ Paediatr Open
January 2025
Department of Paediatrics, Edward Francis Small Teaching Hospital, Banjul, Gambia
Background: Diarrhoea remains a leading cause of death in children. An intestinal adsorbent may reduce diarrhoea duration and severity.
Methods: Randomised controlled feasibility trial with two phases: phase 1 (0-4 hours and double-blind) and phase 2 (up to 5 days and open-label).
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