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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Advances in Catfish Research
edited by , , and Shiyong Zhang
submission deadline 10 Jan 2026 | 1 articles | Viewed by 872
Keywords: catfish; genetics; breeding; nutritional requirements; immunology; physiology and biochemistry; aquaculture techniques
Physiology and Aquaculture of Pearl-Producing Mollusks
edited by Pedro E. Saucedo
submission deadline 10 Jan 2026 | Viewed by 313
Keywords: aquaculture; marine mollusks; freshwater mollusks; physiology of pearl-producing mollusks; pearl culture
(This special issue belongs to the Section Aquatic Invertebrates)
Trophic Ecology of Freshwater and Marine Fish Species
edited by Davide Cicala, Ying Xue, Kai Wang and
submission deadline 15 Jan 2026 | 4 articles | Viewed by 7238 | Submission Open
Keywords: fish; trophic niches; trophic ecology; food web; dietary composition; feeding strategies
(This special issue belongs to the Section Biology and Ecology)
Adaptation and Response of Fish to Environmental Changes
edited by Jie Li, Mingdian Liu and
submission deadline 15 Jan 2026 | 7 articles | Viewed by 7114 | Submission Open
Keywords: eco-physiology; behavior monitoring; ecological adaptation; climate change; human activities
(This special issue belongs to the Section Environment and Climate Change)
Conservation and Population Genetics of Fishes
edited by Dongmei Xiong
submission deadline 20 Jan 2026 | 5 articles | Viewed by 6257 | 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)
Advancing Fish Nutrition Research for Sustainable Aquaculture
edited by and Leo Nankervis
submission deadline 20 Jan 2026 | 3 articles | Viewed by 3755 | Submission Open
Keywords: fish nutrition; alternative feed formulation; protein source optimization; sustainable aquaculture; essential amino acid; fishmeal; hepatic health; growth indices; digestion physiology; tropical species adaptation
(This special issue belongs to the Section Nutrition and Feeding)
Molecular Mechanism of Fish Immune Response to Pathogens
edited by
submission deadline 20 Jan 2026 | 3 articles | Viewed by 2586 | Submission Open
Keywords: fish; immune response; pathogens; omics; molecular mechanism
(This special issue belongs to the Section Fish Pathology and Parasitology)
Parasites in Aquaculture
edited by Marine Combe
submission deadline 20 Jan 2026 | Viewed by 238 | Submission Open
Keywords: parasites; farmed aquatic animals; infections; prevalence; virulence; diversity; disease emergence; disease ecology; disease management
(This special issue belongs to the Section Fish Pathology and Parasitology)
Advances in Cytogenetics of Fish
edited by , Ricardo Utsunomia and
submission deadline 21 Jan 2026 | Viewed by 343 | Submission Open
Keywords: cytogenomics; sex chromosomes; B chromosomes; repetitive DNA; karyotype; chromosomal evolution
(This special issue belongs to the Section Genetics and Biotechnology)
Intestinal Health of Aquatic Organisms
edited by Mao Lin, and
submission deadline 25 Jan 2026 | 5 articles | Viewed by 5761 | 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)
Building a Sustainable Future for Inland Fisheries and Aquaculture in a Time of Multiple Stressors
edited by , Jurica Jug-Dujaković, Ivan Špelić and Tena Radočaj
submission deadline 31 Jan 2026 | 1 articles | Viewed by 1787 | Submission Open
Keywords: sustainable aquaculture; aquaculture developments; freshwater aquaculture; sustainable inland fisheries; aquatic invasive species
Tilapia Aquaculture: State-of-the-Art
edited by , Jianmeng Cao, and
submission deadline 31 Jan 2026 | 1 articles | Viewed by 504 | Submission Open
Keywords: Tilapia; aquaculture; breeding; nutrition; disease; aquatic economy; germplasm resources
Pivotal Roles of Feed Additives for Fish submission deadline 10 Feb 2026 | 3 articles | Viewed by 12520 | Submission Open
Keywords: aquaculture; fish farming; feed additives; nutrition; functional feed; essential oils; probiotics; postbiotics; organic salts
(This special issue belongs to the Section Nutrition and Feeding)
Advances in Shellfish Aquaculture
edited by and Emily Kunselman
submission deadline 10 Feb 2026 | 1 articles | Viewed by 312 | 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)
Dietary Supplementation in Aquaculture submission deadline 15 Feb 2026 | 4 articles | Viewed by 4190 | Submission Open
Keywords: nutrition; physiology; feed additives; nutrients; biochemistry; immunity
(This special issue belongs to the Section Nutrition and Feeding)
Infection and Detection of Bacterial Pathogens in Aquaculture
edited by Asma M. Karami and
submission deadline 15 Feb 2026 | 3 articles | Viewed by 2504 | Submission Open
Keywords: molecular diagnostics; fish health; innate immunity; sustainable disease management; emerging infectious diseases
(This special issue belongs to the Section Welfare, Health and Disease)
Sustainable Management of Small-Scale and Data-Limited Fisheries: Diagnosis and Strategies submission deadline 20 Feb 2026 | 3 articles | Viewed by 3468 | Submission Open
Keywords: data-limited fisheries; fishery management; management measures; monitoring programs; small-scale fisheries; stock assessment; sustainability
Environmental Change Impacts on Freshwater Fish Communities submission deadline 20 Feb 2026 | Viewed by 129 | Submission Open
Keywords: fish ecology; aquatic conservation; Anthropocene impacts; climate change effects; freshwater biodiversity; microplastic pollution; agrochemical contamination; riparian degradation; community-based conservation; functional trait diversity; metacommunity dynamics
(This special issue belongs to the Section Environment and Climate Change)
The Ecology of Reef Fishes
edited by , Fabiana Cézar Félix-Hackradt and
submission deadline 25 Feb 2026 | 2 articles | Viewed by 2387 | Submission Open
Keywords: coral reef fish ecology; anthropogenic impacts; functional ecology; population dynamics; community structure; movement ecology; genetic diversity; reef fish conservation
Genetic Breeding and Immunity of Aquatic Animals
edited by Zhe Zheng, Xiaohui Cai, and
submission deadline 25 Feb 2026 | 1 articles | Viewed by 895 | Submission Open
Keywords: genetic breeding; aquatic animal immunity; disease resistance; genomic selection; gene editing
(This special issue belongs to the Section Genetics and Biotechnology)
Advances in the Immunology of Aquatic Animals
edited by , and Mingzhu Pan
submission deadline 28 Feb 2026 | 2 articles | Viewed by 1105 | Submission Open
Keywords: aquatic immunology; fish health; vaccine development; pathogen– host interaction; One Health; eco-immunology; aquaculture resilience; probiotics; climate stress; antimicrobial resistance; omics technologies
(This special issue belongs to the Section Welfare, Health and Disease)
Sustainable Aquaculture of Crustaceans
edited by Luis Otavio Brito and Suzianny Maria Bezerra Cabral Da Silva
submission deadline 28 Feb 2026 | Viewed by 219 | Submission Open
Keywords: sustainable aquaculture; crustacean farming; marine and freshwater shrimps; lobsters; crabs; crayfish; microcrustaceans; reproduction and breeding; growth performance; health management; functional feed additives; fishmeal replacement; aquafeed innovation; Biofloc and Synbiotic technology; integrated multi-trophic aquaculture (IMTA); Aquaculture 4.0; environmental management
(This special issue belongs to the Section Sustainable Aquaculture)
Population Genomics for Freshwater Fish Conservation: From Markers to Management
edited by and In-Chul Bang
submission deadline 1 Mar 2026 | 1 articles | Viewed by 677 | Submission Open
Keywords: fish genetics; Genomics; fish conservation; genetic markers; microsatellite marker; whole genome sequencing; effective population size; eDNA monitoring; mitochondrial DNA; adaptive introgression; population genetics; population genomics; artificial breeding of genetics
Seafood Products: Nutrients, Safety, and Sustainability
edited by and Marília Miotto
submission deadline 5 Mar 2026 | 1 articles | Viewed by 1726 | Submission Open
Keywords: fish; mollusks; seafood processing; byproducts; nutritional quality; seafood bioactive compounds; contamination; microplastics; phycotoxins
(This special issue belongs to the Section Processing and Comprehensive Utilization of Fishery Products)
Feature Papers by Fishes’ Editorial Board Members submission deadline 10 Mar 2026 | 1 articles | Viewed by 806 | Submission Open
Keywords: aquatic biodiversity; climate change’ s impacts; pollution; antimicrobial resistance; sustainable aquaculture; genetic improvement; ecosystem-based management; blue biotechnology; fish welfare; seafood traceability
Ecology and Treatment of Parasitic Diseases in Aquatic Species submission deadline 10 Mar 2026 | 1 articles | Viewed by 329 | Submission Open
Keywords: smart nanoparticles; biomolecules; antimicrobial; antiparasite; hybrid nanomaterial; eco-friendly nanomaterials; natural products; drug delivery systems; phytogenic compounds; essential oils; environmental influences on development of parasite disease
(This special issue belongs to the Section Welfare, Health and Disease)
Impacts of Climate Change on Physiology and Ecology of Aquatic Organisms
edited by , Xinguo Zhao, Yuming Zhang and Ping Li
submission deadline 10 Mar 2026 | Viewed by 257 | Submission Open
Keywords: climate change; aquatic organisms; physiological ecology; adaptation strategies; environmental management
Advances in Pathology of Aquatic Animals
edited by Maria Cristina Chávez-Sánchez
submission deadline 15 Mar 2026 | 3 articles | Viewed by 3389 | Submission Open
Keywords: disease responses to nutritional and environmental stress (pollution and climate change); host– pathogen interactions and novel treatments; genomic approaches to infectious diseases; host– microbiota and immune responses; emerging technologies in fish farming health and welfare (diagnostic; prevention; biosensors; AI; etc.); functional supplements/additives in aquatic animal health
(This special issue belongs to the Section Fish Pathology and Parasitology)
Advances in Tilapia Aquaculture
edited by , Rodrigo Fortes-Silva and Leandro Santos Costa
submission deadline 15 Mar 2026 | 1 articles | Viewed by 474 | Submission Open
Keywords: tilapia aquaculture; sustainable nutrition; physiology; technology; genetic; breeding; disease management; water quality; behavior
(This special issue belongs to the Section Sustainable Aquaculture)
Genomics Applied to Fish Health
edited by
submission deadline 20 Mar 2026 | 2 articles | Viewed by 2704 | 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 1470 | 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 | 1 articles | Viewed by 449 | 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 749 | 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 | 6 articles | Viewed by 2049 | 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 233 | 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 119 | 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 201 | 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 9818 | 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 1823 | 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 9767 | 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 1589 | 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 528 | 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 329 | 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 103 | 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 174 | 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 95 | 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 164 | 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 154 | 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 5014 | 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 1586 | Submission Open
Keywords: morphology; palaeontology; aquatic; vertebrate; invertebrate; fish; cetacean
(This special issue belongs to the Section Biology and Ecology)
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