Special Issues

Fishes publishes Special Issues to create collections of papers on specific topics, with the aim of building a community of authors and readers to discuss the latest research and develop new ideas and research directions. Special Issues are led by Guest Editors, who are experts on the topic and all Special Issue submissions follow MDPI's standard editorial process. The journal’s Editor-in-Chief and/or designated Editorial Board Member will oversee Guest Editor appointments and Special Issue proposals, checking their content for relevance and ensuring the suitability of the material for the journal. The papers published in a Special Issue will be collected and displayed on a dedicated page of the journal’s website. Further information on MDPI's Special Issue policies and Guest Editor responsibilities can be found here. For any inquiries related to a Special Issue, please contact the Editorial Office.

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Biodiversity and Spatial Distribution of Fishes, Second Edition
edited by , Ying Xue and Luoliang Xu
submission deadline 10 Apr 2026 | 9 articles | Viewed by 12783 | Submission Open
Keywords: fish biodiversity; spatial– temporal dynamics; fish community; environmental impact factors; climate change; species distribution; eDNA; ecological modelling; community structure
(This special issue belongs to the Section Biology and Ecology)
Toxicology of Anthropogenic Pollutants on Fish
edited by
submission deadline 15 Apr 2026 | 9 articles | Viewed by 13472 | Submission Open
Keywords: anthropogenic pollutants; fish toxicology; aquatic ecosystems; organic pollutants; microplastics; trace elements; environmental protection
(This special issue belongs to the Section Environment and Climate Change)
Advances in Carp: Genetic Improvement and Biotechnology
edited by , and Kaiqi Lian
submission deadline 15 Apr 2026 | 2 articles | Viewed by 2344 | Submission Open
Keywords: carp; genome mining; gene function; genetic breeding; gene editing; xenotransplantation; germplasm preservation; spermatogenesis; disease diagnosis and control
Advances in Shrimp Physiology and Genomics
edited by and Yuquan Li
submission deadline 15 Apr 2026 | 1 articles | Viewed by 933 | Submission Open
Keywords: crustaceans; shrimp; aquaculture; physiology; genomics; genetics; transcriptomics; proteomics; metabolomics
(This special issue belongs to the Section Aquatic Invertebrates)
Molecular Mechanisms of Fish Immune Response
edited by
submission deadline 15 Apr 2026 | Viewed by 488 | Submission Open
Keywords: aquatic animals; fish; immune system; immune response; host-pathogens interactions; molecular mechanisms
(This special issue belongs to the Section Welfare, Health and Disease)
Fish Fossils: Paleontology’s Window to the Past
edited by
submission deadline 18 Apr 2026 | Viewed by 214 | Submission Open
Keywords: paleoichthyology; phylogeny; evolution; paleoenvironment; imaging and analytical techniques
(This special issue belongs to the Section Taxonomy, Evolution, and Biogeography)
Welfare and Stressor in Aquaculture: Mechanisms, Management, and Sustainable Solutions
edited by and Guangjun Wang
submission deadline 20 Apr 2026 | 1 articles | Viewed by 519 | Submission Open
Keywords: aquatic animal welfare; sustainable aquaculture; physiological and behavioral responses; smart aquaculture technologies
(This special issue belongs to the Section Welfare, Health and Disease)
Effects of New Environmental Pollutants on Aquatic Ecosystems and Species
edited by
submission deadline 25 Apr 2026 | Viewed by 285 | Submission Open
Keywords: environment pollutants; aquatic organisms; bioaccumulation; biomagnification; effects toxicity; marine animals; aquatic ecosystem
(This special issue belongs to the Section Environment and Climate Change)
Advances in the Application of Microalgae in Aquaculture
edited by Yihong Zheng and
submission deadline 28 Apr 2026 | 1 articles | Viewed by 829 | Submission Open
Keywords: microalgae; sustainable aquaculture; aquafeed; fish nutrition; omega-3 fatty acids; protein alternatives; bioactive compounds; aquatic animal health; feed technology; sustainability
(This special issue belongs to the Section Sustainable Aquaculture)
Aquatic Ecotoxicology: Field and Laboratory Approaches
edited by Yuri Dornelles Zebral
submission deadline 30 Apr 2026 | 2 articles | Viewed by 6857 | Submission Open
Keywords: ecotoxicology; monitoring programs; experimental studies; biomarkers; metals; organic pollution; pesticides; legacy contaminants; emergent contaminants; climate crisis
(This special issue belongs to the Section Physiology and Biochemistry)
Vantage Points in the Morphology of Aquatic Organisms
edited by Peter S. Johnston
submission deadline 30 Apr 2026 | 3 articles | Viewed by 2330 | Submission Open
Keywords: morphology; palaeontology; aquatic; vertebrate; invertebrate; fish; cetacean
(This special issue belongs to the Section Biology and Ecology)
Impact of Plastic and Fiber Pollution on Aquatic Animals submission deadline 30 Apr 2026 | 1 articles | Viewed by 677 | Submission Open
Keywords: aquatic organisms; aquatic systems; emerging contaminants; microplastic; fiber; aquaculture; fischeries; aquatic health; safety
(This special issue belongs to the Section Environment and Climate Change)
Ecological Aquaculture and Disease Prevention and Control
edited by Yichao Ren and Chunyan Zhao
submission deadline 30 Apr 2026 | Viewed by 260 | Submission Open
Keywords: ecological aquaculture; environmental factor; disease control; antibiotic alternatives; sustainable aquaculture; stress; adaptation; environmental acclimatization
Sustainable Aquaculture and Seafood Production
edited by
submission deadline 10 May 2026 | 1 articles | Viewed by 827 | Submission Open
Keywords: governance; economic viability; climate change; social well-being; environmental impact; feed ingredients; animal health and welfare; engineering; product quality; automation
Stress Ecology of Aquatic Animals
edited by and Nesho H. Chipev
submission deadline 10 May 2026 | Viewed by 363 | Submission Open
Keywords: adaptation and resilience; aquatic pollution; climate change impacts; environmental stressors; marine ecophysiology; multi-stressor interactions
(This special issue belongs to the Section Environment and Climate Change)
Intestinal Health of Aquatic Organisms
edited by Mao Lin, and
submission deadline 15 May 2026 | 5 articles | Viewed by 7686 | Submission Open
Keywords: gut health; gut microbiota; biodiversity; probiotics; prebiotics; postbiotics; bacteriophage; immune function; nutrient absorption; disease resistance
(This special issue belongs to the Section Welfare, Health and Disease)
Fish Farming in Recirculating Aquaculture Systems
edited by Baoliang Liu and Wenyang Li
submission deadline 15 May 2026 | 3 articles | Viewed by 6401 | Submission Open
Keywords: recirculating aquaculture system; indoor aquaculture; zero water exchange aquaculture; aquaculture environment
(This special issue belongs to the Section Sustainable Aquaculture)
Germplasm Resources and Genetic Breeding of Aquatic Animals
edited by and
submission deadline 15 May 2026 | 4 articles | Viewed by 3990 | Submission Open
Keywords: germplasm preservation and utilization; genome evolution; omics analysis; economic traits; functional gene; mitochondrial genome; microsatellite; growth and development
(This special issue belongs to the Section Genetics and Biotechnology)
Physiological and Behavioral Studies in Aquaculture
edited by
submission deadline 15 May 2026 | 1 articles | Viewed by 682 | Submission Open
Keywords: aquaculture; physiology; behavior; stress response; metabolism; neuroendocrine regulation; nutrition; welfare; environmental adaptation; sustainable aquaculture
Evolutionary Biology of Aquatic Animals submission deadline 15 May 2026 | 1 articles | Viewed by 553 | Submission Open
Keywords: marine organism; population genetics; biological diversity; adaptative evolution; conservation genetics; phylogeny
(This special issue belongs to the Section Taxonomy, Evolution, and Biogeography)
Nutritional Modulation of Brain Function and Behavior in Aquatic Animals submission deadline 15 May 2026 | 1 articles | Viewed by 461 | Submission Open
Keywords: fatty acids; n-3 LC-PUFA; fish nutrition; neurotransmitters; brain physiology; stress response; fish welfare; sustainable aquafeeds; alternative lipids; valorization of discards
(This special issue belongs to the Section Nutrition and Feeding)
Green Sustainable Aquaculture and Environmental Control
edited by Guangjun Wang, , Kai Zhang and
submission deadline 15 May 2026 | Viewed by 238 | Submission Open
Keywords: sustainable aquaculture; environment regulation; environment restoration
(This special issue belongs to the Section Sustainable Aquaculture)
Fish Nutrition and Immunology
edited by
submission deadline 20 May 2026 | 4 articles | Viewed by 7421 | Submission Open
Keywords: fish; nutrition; immunity; immune additives
(This special issue belongs to the Section Nutrition and Feeding)
Ecology of Fish: Age, Growth, Reproduction and Feeding Habits submission deadline 20 May 2026 | 5 articles | Viewed by 4950 | Submission Open
Keywords: age; growth; reproductive ecology; feeding ecology; population dynamics
(This special issue belongs to the Section Biology and Ecology)
Microbial Pathogens, Disease Control and Veterinary Drug Use in Aquaculture
edited by , and Yali Wang
submission deadline 20 May 2026 | 6 articles | Viewed by 4612 | Submission Open
Keywords: diseases; pathogens; control; aquaculture
(This special issue belongs to the Section Welfare, Health and Disease)
Advances in Integrated Rice-Fish Farming
edited by Zongjun Du and Dongjie Wang
submission deadline 20 May 2026 | 1 articles | Viewed by 762 | Submission Open
Keywords: rice– fish co-culture system; integrated aquaculture; nutrient cycling; microbial community dynamics; heavy metal accumulation; microplastic accumulation; climate-resilient farming; sustainable agriculture
(This special issue belongs to the Section Sustainable Aquaculture)
Sustainable Fisheries Dynamics
edited by Rong Wan and Junbo Zhang
submission deadline 22 May 2026 | 10 articles | Viewed by 8329 | Submission Open
Keywords: sustainable fisheries management; overfishing; climate change; habitat degradation; fisheries dynamic models; ecosystem responses; interdisciplinary approaches
(This special issue belongs to the Section Fishery Economics, Policy, and Management)
Impact of Climate Change and Adverse Environments on Aquaculture
edited by , and
submission deadline 25 May 2026 | 2 articles | Viewed by 2454 | Submission Open
Keywords: climate change; adverse environments; aquaculture; environmental microbes; environmental pollution; new pollutants
(This special issue belongs to the Section Environment and Climate Change)
Freshwater Fishes: Taxonomic Diversity, Conservation Concerns, and Future Directions
edited by Luisa Maria Sarmento-Soares
submission deadline 30 May 2026 | 3 articles | Viewed by 2562 | Submission Open
Keywords: taxonomy; conservation genetics; connectivity; freshwater biodiversity; habitat restoration; climate change; population viability; invasive species management; environmental DNA; adaptive management; threat assessment
(This special issue belongs to the Section Biology and Ecology)
Use of Essential Oils in Aquaculture submission deadline 31 May 2026 | 5 articles | Viewed by 6323 | Submission Open
Keywords: welfare; safe management; transportation; growth; anesthetic; stress
(This special issue belongs to the Section Welfare, Health and Disease)
The Hidden Network: Trophic Interactions in Marine Ecosystems
edited by
submission deadline 31 May 2026 | Viewed by 330 | Submission Open
Keywords: stable isotopes; isotopic niche; fish tropic ecology; invasive species; habitat use; coastal/marine ecosystem; Mediterranean Sea
(This special issue belongs to the Section Biology and Ecology)
Enforcement and Compliance in Fisheries
edited by Geir Hønneland
submission deadline 31 May 2026 | Viewed by 302 | Submission Open
Keywords: compliance; enforcement; IUU fishing; fisheries management; law of the sea; ocean governance; blue crime
(This special issue belongs to the Section Fishery Economics, Policy, and Management)
Feed Additives in Fish and Shellfish Farming
edited by and Ping Wu
submission deadline 31 May 2026 | Viewed by 235 | Submission Open
Keywords: aquatic animal nutrition; feed additive; immunity; nutritional physiology; disease resistance
(This special issue belongs to the Section Nutrition and Feeding)
An Issue in Honor of Yoram Avnimelech: Application of Biofloc Technology (BFT) submission deadline 5 Jun 2026 | 6 articles | Viewed by 5526 | Submission Open
Keywords: bacterial community; super intensive; circular economy; sustainability; nitrification; heterotrophic
(This special issue belongs to the Section Sustainable Aquaculture)
Advances in Shellfish Aquaculture
edited by and Emily Kunselman
submission deadline 10 Jun 2026 | 4 articles | Viewed by 2206 | Submission Open
Keywords: shellfish aquaculture; disease management; shellfish genomics; sustainable production; nutritional physiology; biosecurity; environmental impact; hatchery technology; aquaculture policy; integrated multi-trophic aquaculture (IMTA)
(This special issue belongs to the Section Sustainable Aquaculture)
Physiological Responses of Fish to Stressors
edited by Xiaohong Liu
submission deadline 10 Jun 2026 | 1 articles | Viewed by 862 | Submission Open
Keywords: wild fish; aquatic fish; physiological responses; new technology; molecular mechanisms; evolutionary perspectives; adaptation
Life in Layers: Age and Growth of Fishes
edited by Antonela Sovulj and
submission deadline 10 Jun 2026 | 1 articles | Viewed by 819 | Submission Open
Keywords: fish growth; age determination; growth modeling; life-history traits; fisheries management; environmental drivers; anthropogenic impacts
(This special issue belongs to the Section Biology and Ecology)
Passive Acoustic Monitoring of Aquatic Mammals
edited by
submission deadline 10 Jun 2026 | Viewed by 233 | Submission Open
Keywords: passive acoustic monitoring (PAM); bioacoustics; cetaceans; marine mammal; communication; anthropogenic noise; automated detection; conservation bioacoustics; soundscape ecology
Conservation and Population Genetics of Fishes
edited by Dongmei Xiong
submission deadline 15 Jun 2026 | 6 articles | Viewed by 8102 | Submission Open
Keywords: conservation of endangered fishes; genetic diversity; population genetics; species delimitation; population structure and genetic divergence; adaptive evolution; polygenic relationship; genome-wide data
(This special issue belongs to the Section Genetics and Biotechnology)
Fish Health and Welfare in Aquaculture and Research Settings
edited by , Marcelo Ferreira Torres and
submission deadline 15 Jun 2026 | 6 articles | Viewed by 7558 | Submission Open
Keywords: advanced monitoring technologies; aquaculture sustainability; behavioural indicators; environmental and nutritional impact; ethical aquaculture; fish welfare; husbandry practices; precision aquaculture; stress physiology; welfare assessments
(This special issue belongs to the Section Welfare, Health and Disease)
Biology and Culture of Marine Invertebrates submission deadline 15 Jun 2026 | 9 articles | Viewed by 5211 | Submission Open
Keywords: marine invertebrates; biology; aquaculture
(This special issue belongs to the Section Aquatic Invertebrates)
Integrated Multi-Trophic Aquaculture (IMTA)
edited by Patricia Moraes-Valenti and
submission deadline 15 Jun 2026 | 4 articles | Viewed by 4517 | Submission Open
Keywords: IMTA; integrated aquaculture; nutrient regeneration; restorative aquaculture; ecological and symbiotic aquaculture; aquamimicry; aquapony
(This special issue belongs to the Section Sustainable Aquaculture)
Zooplankton Production Applied to Aquaculture submission deadline 15 Jun 2026 | 2 articles | Viewed by 1496 | Submission Open
Keywords: rotifer; artemia; copepods; cladocera; zooplankton mass production; zooplankton enrichment; larviculture; biofloc; weaning protocols
(This special issue belongs to the Section Sustainable Aquaculture)
Fish Disease Prevention: Immune Defense and Vaccine Development
edited by and
submission deadline 15 Jun 2026 | Viewed by 268 | Submission Open
Keywords: fish disease prevention; immune mechanisms; vaccine development; diagnostics and biosecurity; aquaculture
(This special issue belongs to the Section Welfare, Health and Disease)
Sustainable Bivalve Mollusks Aquaculture
edited by Maoxiao Peng
submission deadline 17 Jun 2026 | Viewed by 179 | Submission Open
Keywords: bivalve breeding; bivalve genetic resources; physiological and molecular response; environmental adaptation; omics analyses; bivalve disease; climate changes in bivalves; biosecurity in bivalve aquaculture; bivalve health and habitat maintenance
(This special issue belongs to the Section Aquatic Invertebrates)
Applications of Genome-Based Technologies in Aquaculture
edited by Peng Yu
submission deadline 17 Jun 2026 | Viewed by 133 | Submission Open
Keywords: genomics; selective breeding; genome editing; aquaculture genetics; genomic selection; molecular breeding; aquaculture; phenotype; genotype; multi-omics
(This special issue belongs to the Section Genetics and Biotechnology)
Age Determination of Aquatic Animals
edited by Raouf W. Kilada
submission deadline 20 Jun 2026 | 3 articles | Viewed by 3855 | Submission Open
Keywords: age; validation; growth; shells; cephalopod; echinoderms; crustaceans; fish
The Roles of Fishery Biology and Fish Population Dynamics in Fisheries Management—2nd Edition submission deadline 20 Jun 2026 | 4 articles | Viewed by 3375 | Submission Open
Keywords: fishery biology; fish population dynamics; fishing ecology; stock assessment; data-limited fisheries management; fishery resource management; artisanal fishing; coastal fishing; fishing in protected areas
(This special issue belongs to the Section Biology and Ecology)
Recent Advances in Nutrition and Metabolic Regulation of Fish
edited by , Yulong Gong and Wenjie Xu
submission deadline 20 Jun 2026 | 1 articles | Viewed by 1431 | Submission Open
Keywords: fish nutrition; metabolic adaptation; functional feed additives; novel feed ingredients
(This special issue belongs to the Section Nutrition and Feeding)
Effect of Dietary Supplementation on the Growth and Immunity of Fish and Shellfish—3rd Edition
edited by Qiyou Xu, Jianhua Ming, Fei Song, Changle Qi and
submission deadline 25 Jun 2026 | 6 articles | Viewed by 4553 | Submission Open
Keywords: immunity; antioxidation; intestinal health; gut microbiota; anti-stress; growth; feed additive; feedstuff
(This special issue belongs to the Section Nutrition and Feeding)
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