Ecological Dynamics and Conservation of Marine Fisheries
A special issue of Diversity (ISSN 1424-2818). This special issue belongs to the section "Marine Diversity".
Deadline for manuscript submissions: 31 December 2025 | Viewed by 330
Special Issue Editor
Special Issue Information
Dear Colleagues,
The exploitation of fisheries, particularly overfishing, has significant negative impacts on marine biodiversity; it has been identified as the main cause of stock depletion. To ensure the long-term conservation and sustainable use of fisheries, harvested stocks should be maintained at levels of abundance producing the maximum sustainable yield and being able to maintain their populations in the long term. When they are overexploited, they disrupt the delicate balance of marine ecosystems, reducing the diversity of species and altering the genetic makeup of wild populations. The consequences of these changes can ripple through the entire food chain.
A general definition of biodiversity is “the collection of genomes, species, and ecosystems occurring in a geographically defined region” (NRC, 1995). Fisheries impact baseline diversity and, at the genetic level, exploitation change population characteristics of the stock structure, leading to alterations in the genoma and energy flow, impacting the diversity of marine habitats, and modifying habitats and the function of ecosystems through effects altering by-catch composition and the structures of fisheries. This problem constrains the possibility of further expanding fisheries. Changes in species diversity under the artificial selection imposed by fisheries will typically favor species with specific life history characteristics, altering trophic or energy flow pathways with consequences for ecosystem diversity and productivity. Ecosystems respond to natural perturbations that occur on longer time scales. In contrast, fisheries have major impacts on marine biodiversity in the long term, compromising their long-term sustainability, which is dependent on the species diversity that they are altering.
Dr. Ernesto A. Chavez Ortiz
Guest Editor
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Keywords
- stock assessment
- fisheries simulation
- biodiversity
- harvesting strategies
- potential biomass
- potential production
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