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Fishes and Crustaceans: Biology and Ecology in a Changing Marine...
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Fishes and Crustaceans: Biology and Ecology in a Changing Marine Environment

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

Deadline for manuscript submissions: 28 July 2024 | Viewed by 2794

Special Issue Editors

Dr. Sabrina Colella

E-Mail Website
Guest Editor
Institute for Marine Biological Resources and Biotechnology (IRBIM)—National Research Council (CNR), 60125 Ancona, Italy
Interests: small pelagics and demersal species biology and ecology; pollutants and lipids in relation to aspects of reproductive biology
Prof. Dr. Giorgia Gioacchini

E-Mail Website
Guest Editor
Department of Life and Environmental Sciences, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy
Interests: effects of pollution (chemicals and microplastics) and climate changes on reproductive and developmental biology of fishes (small and large pelagic and sharks); cephalopods (cuttlefish); marine turtles and dolphins
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In recent decades, anthropogenic activities have continuously increased, impacting the marine environment and, consequently, affecting marine organisms.  The biology and ecology of fishes and crustaceans is fundamental topic that will ensure the protection of the marine ecosystem biodiversity. New studies on these topics will improve our knowledge of the marine environment, with remarkable and interesting impacts both in basic and applied research.

This Special Issue will publish original research papers, case studies and review articles on the latest advances in the  biology and ecology of fishes and crustaceans in the marine environment, referred to  native and alien species. Potential topics include all physiological phases of the life history (e.g., growth, reproduction, feeding, etc.), as well as interaction with the abiotic factors that influence the marine environment and the welfare of marine fish and crustaceans (salinity, temperature, etc.). Papers focusing on interactions between pollutants and  physiological phases of the life history (e.g., growth, reproduction, feeding, etc.) are also of interest.

You are cordially invited to contribute to this Special Issue in order to improve the knowledge of marine fishes and crustaceans.

Dr. Sabrina Colella
Prof. Dr. Giorgia Gioacchini
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Animals is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • marine fishes and crustaceans
  • reproduction
  • growth
  • feeding
  • ecology
  • native species
  • alien species
  • pollutants

Published Papers (3 papers)

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Research

14 pages, 1581 KiB  
Article
Estimate of Growth Parameters of Penaeus kerathurus (Forskäl, 1775) (Crustacea, Penaeidae) in the Northern Adriatic Sea
by Martina Scanu, Carlo Froglia, Fabio Grati and Luca Bolognini
Animals 2024, 14(7), 1068; https://doi.org/10.3390/ani14071068 - 31 Mar 2024
Viewed by 723
Abstract
Crustacean fisheries are gaining prominence globally amid a decline in finfish stocks. Some decapod crustacean species have experienced increased landings in response to shifting market demands and environmental dynamics. Notably, the caramote prawn (Penaeus kerathurus—Forskål, 1775) in the northern Adriatic Sea, [...] Read more.
Crustacean fisheries are gaining prominence globally amid a decline in finfish stocks. Some decapod crustacean species have experienced increased landings in response to shifting market demands and environmental dynamics. Notably, the caramote prawn (Penaeus kerathurus—Forskål, 1775) in the northern Adriatic Sea, Geographical Sub Area (GSA) 17, has risen in both landings and economic importance in recent years. However, despite its significance, comprehensive information on fishery-dependent data, age, and growth in this region remains lacking. To address this gap, this study employs modal progression analysis and the ELEFAN approach, utilizing the “TropFishR” R package and newly developed functions, including bootstrapping procedures. These advancements aim to overcome issues identified in previous versions and enhance the accuracy and reliability of age and growth estimations. The study leverages one year of monthly length-frequency distributions (LFDs) collected from commercial bottom trawls in the northern Adriatic Sea. The results of the analysis confirm the presence of sexual dimorphism in the caramote prawn species, with females exhibiting faster growth rates compared to males. Additionally, the growth performance index supports this observation, further underscoring the importance of accounting for sexual dimorphism in growth modeling and fisheries management strategies. By contributing to a growing body of knowledge on the growth dynamics of the caramote prawn, this study provides valuable insights for sustainable fisheries management in the northern Adriatic Sea. Understanding the age and growth patterns of key crustacean species is essential for developing effective conservation measures and ensuring the long-term health and productivity of marine ecosystems. The findings of this study serve as a foundation for informed decision-making and proactive management practices aimed at preserving the ecological integrity and economic viability of crustacean fisheries in the region. Full article
(This article belongs to the Special Issue Fishes and Crustaceans: Biology and Ecology in a Changing Marine Environment)
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13 pages, 927 KiB  
Communication
Fatty Acids in the Eggs of Red King Crabs from the Barents Sea
by Alexander G. Dvoretsky, Fatima A. Bichkaeva, Nina F. Baranova and Vladimir G. Dvoretsky
Animals 2024, 14(2), 348; https://doi.org/10.3390/ani14020348 - 22 Jan 2024
Viewed by 638
Abstract
The red king crab, Paralithodes camtschaticus, was introduced into the Barents Sea where, after a period of 30 years of adaptation, it has established a new population. This population has been commercially exploited over the past two decades, supporting profitable fisheries in [...] Read more.
The red king crab, Paralithodes camtschaticus, was introduced into the Barents Sea where, after a period of 30 years of adaptation, it has established a new population. This population has been commercially exploited over the past two decades, supporting profitable fisheries in both Russia and Norway. Biochemical studies aimed at assessing fatty acid profiles have been conducted, focusing primarily on the edible parts of red king crabs. Only recently have by-products been included in this research. Capture of female red king crabs is prohibited in Russia but is allowed in Norway. The fatty acids of the egg masses carried by these females have not yet been studied. To fill this knowledge gap, we assayed the fatty acid composition of eggs using gas–liquid chromatography. Our results showed a predominance of polyunsaturated fatty acids, while the concentrations of saturated and monounsaturated fatty acids were similar. Multivariate comparisons showed no significant differences in fatty acid profiles in terms of egg developmental stage (nauplius vs. metanauplius), habitat conditions (soft vs. hard bottoms), female size class, or number of autotomized limbs. However, individual comparisons showed some differences in fatty acids, the most important being the lower content of docosahexaenoic acid in eggs at the metanauplius stage compared to eggs at the nauplius stage, which is likely due to its essential role in the development of red king crab embryos. The total fatty acid content (53.94 mg g−1) was 2–87 times higher in eggs than in other red king crab tissues, confirming the critical role that fatty acids play in maintaining physiological processes during vitellogenesis. The high content of essential fatty acids and an optimal omega-3-to-omega-6 ratio (4.9) suggest that red king crab eggs are a good product for a healthy diet and a valuable source for extracting essential fatty acids. Full article
(This article belongs to the Special Issue Fishes and Crustaceans: Biology and Ecology in a Changing Marine Environment)
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16 pages, 4481 KiB  
Article
Mechanisms of Digestive Enzyme Response to Acute Salinity Stress in Juvenile Yellowfin Tuna (Thunnus albacares)
by Ninglu Zhang, Rui Yang, Zhengyi Fu, Gang Yu and Zhenhua Ma
Animals 2023, 13(22), 3454; https://doi.org/10.3390/ani13223454 - 09 Nov 2023
Viewed by 828
Abstract
This study investigates the effect of a sudden change in salinity for 48 h on the digestive enzyme activity of juvenile yellowfin tuna. The treatment included a control salinity of 32‰ in natural seawater and an experimental salinity of 29‰. Acute stress experiments [...] Read more.
This study investigates the effect of a sudden change in salinity for 48 h on the digestive enzyme activity of juvenile yellowfin tuna. The treatment included a control salinity of 32‰ in natural seawater and an experimental salinity of 29‰. Acute stress experiments were carried out on 72 juvenile yellowfin tuna (646.52 ± 66.32 g) for 48 h to determine changes in digestive enzyme activity in different intestinal sections over time (0 h, 12 h, 24 h, 48 h). The activities of pepsin, trypsin, α-amylase, lipase, and chymotrypsin in the digestive organs (stomach, foregut, and pyloric ceca) of juvenile yellowfin tuna were measured. Pepsin and pancreatic protease in the experimental group were significantly lower than in the control group (p < 0.05). α-amylase showed a fluctuating trend of decreasing and then increasing, and its activity trend was pyloric ceca > foregut > stomach. The lipase activity of gastric tissues decreased at the beginning and then increased, reaching a minimum at 24 h (2.74 ± 1.99 U·g protein−1). The change of lipase in the pyloric ceca and foregut was increasing and then decreasing. The lipase activity trend was pyloric ceca > foregut > stomach. The chymotrypsin showed a decreasing and increasing trend and then stabilized at 48 h with a pattern of pyloric ceca > foregut > stomach. Similarly, the gut villi morphology was not significantly altered in the acutely salinity-stressed compared to the non-salinity-stressed. This study suggests that salinity may change the digestive function of juvenile yellowfin tuna, thereby affecting fish feeding, growth, and development. On the contrary, yellowfin tuna is highly adapted to 29‰ salinity. However, excessive stress may negatively affect digestive enzyme activity and reduce fish digestibility. This study may provide a scientific basis for a coastal aquaculture water environment for yellowfin tuna farming, which may guide the development and cultivation of aquaculture. Full article
(This article belongs to the Special Issue Fishes and Crustaceans: Biology and Ecology in a Changing Marine Environment)
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