Natural and Anthropogenic Factors That Affect Marine Fisheries Resources

A special issue of Animals (ISSN 2076-2615). This special issue belongs to the section "Aquatic Animals".

Deadline for manuscript submissions: 31 August 2024 | Viewed by 1265

Special Issue Editors


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Guest Editor
Institute for Marine Biological Resources and Biotechnology (IRBIM), National Research Council (CNR), Section of Messina, Spianata San Raineri 86, 98122 Messina, Italy
Interests: fisheries biology; stock assessment; demersal resources; fisheries management; ecosystem-based fisheries

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Guest Editor
Institute for Marine Biological Resources and Biotechnology (IRBIM), National Research Council (CNR), Section of Messina, Spianata San Raineri 86, 98122 Messina, Italy
Interests: benthos; biodiversity; demersal species; fisheries biology; marine biology; stock assessment; sustainable fishery; geographic information systems

E-Mail Website
Guest Editor
Institute for Marine Biological Resources and Biotechnology (IRBIM), National Research Council (CNR), Section of Messina, Spianata San Raineri 86, 98122 Messina, Italy
Interests: fisheries biology; stock assessment; demersal species; biological surveys; histology

E-Mail Website
Guest Editor
Institute for Marine Biological Resources and Biotechnology (IRBIM), National Research Council (CNR), Section of Messina, Spianata San Raineri 86, 98122 Messina, Italy
Interests: biodiversity; ichthyoplankton; trophic ecology; reproductive biology; cephalopods; alien species

Special Issue Information

Dear Colleagues,

Sustainable fishery management needs the knowledge of marine stocks in a changing ocean ecosystem under the pressure of global change to improve. In recent decades, keeping the oceans healthy has been increasingly difficult due to both anthropogenic impacts and natural alterations that affect the marine environment.

Climate change, through long-term temperature increases and a higher frequency of short-term extreme events, is undoubtedly affecting the biology and ecology of the organisms in the sea. The most visible changes affect the life cycle, reproductive efforts, and demography, but generally result from subtle adaptive responses, such as physiological adjustments and micro-evolutionary processes. The main consequences of warming are a simultaneous increase in the abundance of thermophilic and thermo-tolerant species and the disappearance or rarefaction of “cold” steno-thermal species.

Another main aspect of climate change is ocean acidification. It may lead to changes in the relative species composition at a given trophic level, affecting the overall productivity. Possible effects at the organism level include reduced growth and reproductive output, increased predation and mortality, alteration in feeding rates and behavior, and reduced thermal tolerance.

Another interesting topic is the relationship between the productivity of fishery target species and biodiversity, and their interactions in space. From a general point of view, the loss of biodiversity is related to a diminished capacity of the oceans to provide food, to maintain a high environmental quality, and to oppose perturbations.

Original manuscripts, including both research papers and review articles that address all biological and ecological aspects of marine species related to fisheries, are invited to be considered for publication in this Special Issue. In particular, the aims of this Special Issue include, but are not restricted to, the evaluation of the effects of natural and anthropic changes in marine ecosystems such as global warming, seawater temperature increases, ocean acidification, and biodiversity loss on species ecology.

Dr. Paola Rinelli
Dr. Adriana Profeta
Dr. Anna Perdichizzi
Dr. Daniela Giordano
Guest Editors

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Published Papers (1 paper)

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Research

15 pages, 5346 KiB  
Article
Summer Biomass Variability and Spatial Interactions between European Sprat (Sprattus sprattus) and Moon Jellyfish (Aurelia aurita) in the Western Part of the Black Sea
by Vesselina Mihneva, Violin Raykov and Dimitar Petkov Dimitrov
Animals 2023, 13(23), 3691; https://doi.org/10.3390/ani13233691 - 29 Nov 2023
Viewed by 819
Abstract
Over the past few decades, various causal connections between commercial small pelagic fish species and gelatinous zooplankton have been reported in the Black Sea, which affect the pelagic ecosystem. Recently, moon jellyfish regained dominance among gelatinous plankton; however, biomass fluctuations and interactions with [...] Read more.
Over the past few decades, various causal connections between commercial small pelagic fish species and gelatinous zooplankton have been reported in the Black Sea, which affect the pelagic ecosystem. Recently, moon jellyfish regained dominance among gelatinous plankton; however, biomass fluctuations and interactions with small pelagic fish remain poorly understood. During the summers of 2019–2022, scientific pelagic trawl surveys in the Western Black Sea enabled simultaneous monitoring of small pelagic fish biomass, with sprat as the key species and moon jellyfish as an incidental catch. In total, 153 trawl hauls were conducted across four depth strata from 15 to 100 m, and a “swept area” method was used for biomass estimation. The sprat stock biomass ranged from 10,698 to 29,177 t, with an average value of 19,432 ± 4834 t. The total biomass of moon jellyfish was 2002 ± 868.73 t, and dense aggregations were observed in the coastal waters during certain years. Two scenarios of spatial interactions between planktivorous species were identified and linked to the formation of A. aurita aggregations. We found that changes in jellyfish density were associated with weak-to-moderate effects on the spatial distribution of sprat assemblages in coastal areas. Full article
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