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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Genomics Applied to Fish Health
edited by
submission deadline 20 Mar 2026 | 2 articles | Viewed by 2274 | Submission Open
Keywords: aquaculture; genomics; transcriptomics; proteomics; sustainability; fish health; infectious disease; metabolic diseases
(This special issue belongs to the Section Welfare, Health and Disease)
The Impact of Contamination on Fishes submission deadline 20 Mar 2026 | 2 articles | Viewed by 1001 | Submission Open
Keywords: bioaccumulation; biomarkers; eDNA; freshwater; histopathology; marine; metallomics; metals/metalloids; microplastics; organic contaminants
(This special issue belongs to the Section Environment and Climate Change)
Molecular Phylogeny and Taxonomy of Aquatic Animals submission deadline 20 Mar 2026 | Viewed by 140 | Submission Open
Keywords: biodiversity; biogeography; conservation; distribution; evolution; genetics; ichthiology; systematics; taxonomy; zoology  
(This special issue belongs to the Section Taxonomy, Evolution, and Biogeography)
Crustacean Health, Stress and Disease
edited by , and
submission deadline 25 Mar 2026 | 1 articles | Viewed by 637 | Submission Open
Keywords: crustaceans; health; stress; disease; immune system; aquaculture; pathogenesis; environmental stressors; host– pathogen interactions; sustainability
(This special issue belongs to the Section Welfare, Health and Disease)
Advances in Fisheries Economics
edited by Daqing Wu
submission deadline 31 Mar 2026 | 1 articles | Viewed by 514 | Submission Open
Keywords: bioeconomic modeling; economic valuation; fisheries decision-making; seafood trade; resilience
Advancing the Research and Conservation of the Estuarine and Coastal Ecosystems of California and Baja California
edited by and
submission deadline 31 Mar 2026 | Viewed by 212 | Submission Open
Keywords: estuarine ecosystems; estuaries; coastal lagoons; tidal habitats; biology; ecology; conservation; management; physical oceanography; chemical oceanography; biological oceanography
Effects of Dietary Ingredients on Fish Nutrition and Health
edited by
submission deadline 31 Mar 2026 | Viewed by 99 | Submission Open
Keywords: fish nutrition; functional feeds; alternative protein sources; alternative nutritional sources; gut microbiota; immune function; nutrient bioavailability; feed efficiency; fish health; sustainable aquaculture
(This special issue belongs to the Section Nutrition and Feeding)
Enforcement and Compliance in Fisheries
edited by Geir Hønneland
submission deadline 1 Apr 2026 | Viewed by 167 | 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)
Biodiversity and Spatial Distribution of Fishes, Second Edition
edited by , Ying Xue and Luoliang Xu
submission deadline 10 Apr 2026 | 8 articles | Viewed by 8403 | 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)
Genetics and Breeding of Fishes
edited by Wuhui Li
submission deadline 10 Apr 2026 | 3 articles | Viewed by 1379 | Submission Open
Keywords: fish breeding techniques; reproduction; genetics and genomics; sustainable aquaculture
(This special issue belongs to the Section Genetics and Biotechnology)
Toxicology of Anthropogenic Pollutants on Fish
edited by
submission deadline 15 Apr 2026 | 6 articles | Viewed by 8859 | 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 1043 | Submission Open
Keywords: carp; genome mining; gene function; genetic breeding; gene editing; xenotransplantation; germplasm preservation; spermatogenesis; disease diagnosis and control
Molecular Mechanisms of Fish Immune Response
edited by
submission deadline 15 Apr 2026 | Viewed by 297 | 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)
Advances in Shrimp Physiology and Genomics
edited by and Yuquan Li
submission deadline 15 Apr 2026 | 1 articles | Viewed by 285 | Submission Open
Keywords: crustaceans; shrimp; aquaculture; physiology; genomics; genetics; transcriptomics; proteomics; metabolomics
(This special issue belongs to the Section Aquatic Invertebrates)
Fish Fossils: Paleontology’s Window to the Past
edited by
submission deadline 18 Apr 2026 | Viewed by 76 | Submission Open
Keywords: paleoichthyology; phylogeny; evolution; paleoenvironment; imaging and analytical techniques
(This special issue belongs to the Section Taxonomy, Evolution, and Biogeography)
Applications of Hydroacoustic Technology to Marine Ecology and Fisheries
edited by Xiaoqin Zang and Leif Rasmuson
submission deadline 20 Apr 2026 | Viewed by 154 | Submission Open
Keywords: hydroacoustic technology; aquatic ecology; acoustic telemetry; passive acoustic monitoring; fish passage; hydropower; offshore wind; marine hydrokinetic energy; acoustic surveys
Welfare and Stressor in Aquaculture: Mechanisms, Management, and Sustainable Solutions
edited by and Guangjun Wang
submission deadline 20 Apr 2026 | Viewed by 68 | 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 150 | 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 | Viewed by 121 | 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 | 1 articles | Viewed by 4442 | 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 | 2 articles | Viewed by 1320 | 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 | Viewed by 230 | 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 127 | Submission Open
Keywords: ecological aquaculture; environmental factor; disease control; antibiotic alternatives; sustainable aquaculture; stress; adaptation; environmental acclimatization
Stress Ecology of Aquatic Animals
edited by and Nesho H. Chipev
submission deadline 30 Apr 2026 | Viewed by 105 | 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)
Age Determination of Aquatic Animals
edited by Raouf W. Kilada
submission deadline 10 May 2026 | 2 articles | Viewed by 2094 | Submission Open
Keywords: age; validation; growth; shells; cephalopod; echinoderms; crustaceans; fish
Fish Disease Prevention: Immune Defense and Vaccine Development
edited by and
submission deadline 10 May 2026 | Viewed by 122 | 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 Aquaculture and Seafood Production
edited by
submission deadline 10 May 2026 | Viewed by 122 | Submission Open
Keywords: governance; economic viability; climate change; social well-being; environmental impact; feed ingredients; animal health and welfare; engineering; product quality; automation
Fish Farming in Recirculating Aquaculture Systems
edited by Baoliang Liu and Wenyang Li
submission deadline 15 May 2026 | 2 articles | Viewed by 4775 | 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 | 2 articles | Viewed by 1764 | 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)
Evolutionary Biology of Aquatic Animals submission deadline 15 May 2026 | Viewed by 91 | 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)
Physiological and Behavioral Studies in Aquaculture
edited by
submission deadline 15 May 2026 | Viewed by 84 | Submission Open
Keywords: aquaculture; physiology; behavior; stress response; metabolism; neuroendocrine regulation; nutrition; welfare; environmental adaptation; sustainable aquaculture
Nutritional Modulation of Brain Function and Behavior in Aquatic Animals submission deadline 15 May 2026 | Viewed by 63 | 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 Kai Zhang, Guangjun Wang, and
submission deadline 15 May 2026 | Viewed by 54 | 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 | 3 articles | Viewed by 5337 | Submission Open
Keywords: fish; nutrition; immunity; immune additives
(This special issue belongs to the Section Nutrition and Feeding)
Microbial Pathogens, Disease Control and Veterinary Drug Use in Aquaculture
edited by , and Yali Wang
submission deadline 20 May 2026 | 3 articles | Viewed by 2184 | Submission Open
Keywords: diseases; pathogens; control; aquaculture
(This special issue belongs to the Section Welfare, Health and Disease)
Ecology of Fish: Age, Growth, Reproduction and Feeding Habits submission deadline 20 May 2026 | 1 articles | Viewed by 477 | Submission Open
Keywords: age; growth; reproductive ecology; feeding ecology; population dynamics
(This special issue belongs to the Section Biology and Ecology)
Zooplankton Production Applied to Aquaculture submission deadline 20 May 2026 | Viewed by 299 | 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)
Advances in Integrated Rice-Fish Farming
edited by Zongjun Du and Dongjie Wang
submission deadline 20 May 2026 | Viewed by 44 | 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)
Impact of Climate Change and Adverse Environments on Aquaculture
edited by , and
submission deadline 25 May 2026 | 1 articles | Viewed by 1307 | 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 | Viewed by 100 | 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 | 4 articles | Viewed by 3875 | 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 197 | 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)
Feed Additives in Fish and Shellfish Farming
edited by and Ping Wu
submission deadline 31 May 2026 | Viewed by 88 | Submission Open
Keywords: aquatic animal nutrition; feed additive; immunity; nutritional physiology; disease resistance
(This special issue belongs to the Section Nutrition and Feeding)
Life in Layers: Age and Growth of Fishes
edited by Antonela Sovulj and
submission deadline 10 Jun 2026 | Viewed by 62 | 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 28 | Submission Open
Keywords: passive acoustic monitoring (PAM); bioacoustics; cetaceans; marine mammal; communication; anthropogenic noise; automated detection; conservation bioacoustics; soundscape ecology
Integrated Multi-Trophic Aquaculture (IMTA)
edited by Patricia Moraes-Valenti and
submission deadline 15 Jun 2026 | 2 articles | Viewed by 1896 | 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)
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 1011 | Submission Open
Keywords: fish nutrition; metabolic adaptation; functional feed additives; novel feed ingredients
(This special issue belongs to the Section Nutrition and Feeding)
The Roles of Fishery Biology and Fish Population Dynamics in Fisheries Management—2nd Edition submission deadline 20 Jun 2026 | 3 articles | Viewed by 904 | 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)
Effects of Feed and Supplementation on the Metabolism, Microbiota and Immune Response of Fish
edited by and Andressa Teles
submission deadline 30 Jun 2026 | Viewed by 142 | Submission Open
Keywords: feed additives; microbiota; aquafeeds; metabolism; immunology
(This special issue belongs to the Section Nutrition and Feeding)
Functional Gene Analysis and Genomic Technologies in Aquatic Animals
edited by
submission deadline 30 Jun 2026 | Viewed by 140 | Submission Open
Keywords: genomic selection; genome-wide association study (GWAS); selection signature; candidate gene identification; genome editing; functional gene validation; multi-omics integration; quantitative genetics; molecular breeding; aquatic genomics; sustainable aquaculture
(This special issue belongs to the Section Genetics and Biotechnology)
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