Advances in Understanding of Fish and Aquatic Animals: Reviews of Current Topics

A special issue of Fishes (ISSN 2410-3888).

Deadline for manuscript submissions: closed (20 December 2022) | Viewed by 4409

Special Issue Editors


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Department of Fish and Wildlife Conservation, Virginia Polytechnic Institute and State University, 100 Cheatham Hall, Blacksburg, VA 24061, USA
Interests: genetics education; population genetics; aquaculture; biotechnology
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Guest Editor
Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, Brazil
Interests: physiology; osmoregulation; anesthesia; antibacterials; culture of tropical freshwater fish
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We invite you to submit a review to a Special Issue of Fishes on “Advances in Understanding of Fish and Aquatic Animals: Reviews of Current Topics”. The aim of this issue is to publish reviews that integrate and synthesize knowledge among disciplines related to fish and other aquatic animals within the fields of fisheries or aquaculture. We invite your contribution. Manuscripts will be evaluated based on comments and suggestions from peer reviewers on full manuscripts for this Special Issue.

This will be a dynamic Special Issue, and reviews will be published as soon as reviewers and editors are ready to accept them, without waiting for the deadline for the entire Special Issue to arrive.

Prof. Dr. Eric Hallerman
Prof. Dr. Bernardo Baldisserotto
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. Fishes is an international peer-reviewed open access monthly 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 2600 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.

Published Papers (2 papers)

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25 pages, 2736 KiB  
Case Report
Bioeconomic Analysis of In-Pond Raceway System Production of Foodsize and Stocker Hybrid Catfish (Channel Catfish Ictalurus punctatus ♀ × Blue Catfish, I. furcatus ♂)
by Leticia Fantini-Hoag, Terry Hanson and Jesse Chappell
Fishes 2023, 8(2), 96; https://doi.org/10.3390/fishes8020096 - 06 Feb 2023
Viewed by 1649
Abstract
The U.S. catfish industry is seeking production systems that are efficient, intensive, and profitable. Growing foodsize and stocker-sized fish in the same pond is attractive as it is often difficult to obtain larger-sized stockers early each year. This case study evaluated the performance [...] Read more.
The U.S. catfish industry is seeking production systems that are efficient, intensive, and profitable. Growing foodsize and stocker-sized fish in the same pond is attractive as it is often difficult to obtain larger-sized stockers early each year. This case study evaluated the performance and economics of producing foodsize hybrid catfish and stocker-sized fingerlings in in-pond raceway systems (IPRS) placed into four 0.4 ha ponds. Growout raceways (RW1/RW2) in ponds 1 and 2 were 63 m3, and 45 m3 in ponds 3 and 4 (RW3/RW4). Each pond had one (14 m3) stocker unit raceway and a 5 HP of aeration that maintained adequate dissolved oxygen levels. Average growout production was 12,050 kg/ha in 63 m3 raceways and 12,078 kg/ha in 45 m3 raceways (228 days of production) and achieved harvest weights ranging from 564 to 661 g. The raceway stocker unit had production yields ranging from 3537 to 4388 kg/ha (143 days of production) and achieved harvest weights ranging from 123 to 234 g. Stocker units in ponds 1 and 2 generated 8540 stocker–fingerlings (21,102 fingerlings/ha) and units in ponds 3 and 4 generated 7954 fingerlings (19,654 fingerlings/ha). An investment of USD 39,996 was needed for ponds 1 and 2 and USD 21,196 for ponds 3 and 4. When scenarios were analyzed financially, positive financial net returns occurred when farm level investment decreased, leading to reduced payback periods, increased net present values, and higher internal rates of return. IPRS used stocker units to culture fingerlings for future stocking of foodsize fish. IPRS provided good inventory control, and high production yields compared to traditional pond culture of catfish. Full article
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8 pages, 244 KiB  
Perspective
Creatine Kinase Activity as an Indicator of Energetic Impairment and Tissue Damage in Fish: A Review
by Matheus D. Baldissera and Bernardo Baldisserotto
Fishes 2023, 8(2), 59; https://doi.org/10.3390/fishes8020059 - 18 Jan 2023
Cited by 2 | Viewed by 2029
Abstract
Creatine kinase (CK) is an enzyme that produces and uses phosphocreatine to transfer energy to maintain tissue and cellular energy homeostasis, being considered the main controller of cellular energy homeostasis. Its activity in plasma/serum has been commonly used to evaluate tissue damage, since [...] Read more.
Creatine kinase (CK) is an enzyme that produces and uses phosphocreatine to transfer energy to maintain tissue and cellular energy homeostasis, being considered the main controller of cellular energy homeostasis. Its activity in plasma/serum has been commonly used to evaluate tissue damage, since CK is released into the bloodstream during damage. This review summarizes the current knowledge regarding the use of CK activity in fish, focusing on its potential as an indicator of the impairment of energetic homeostasis and tissue damage during stressful situations, such as exposure to contaminants (metals, pesticides, microplastic), hypoxia, thermal stress, and diseases (fungal, parasitic, and bacterial). Based on the data, we can conclude that tissue CK activity can be used as a suitable indicator of the impairment of energetic homeostasis in fish exposed to different aquaculture challenge conditions, while serum/plasma CK activity can be used as the first evidence of possible tissue damage, due to its release into the bloodstream. Full article
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