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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Development of Low-Crop, Low-Fishmeal or Low-Fish Oil Feeds for Aquaculture
edited by and Qiang Ma
submission deadline 15 Nov 2025 | 7 articles | Viewed by 10550 | Submission Open
Keywords: sustainability; feed ingredient; aquaculture; productivity; feed alternatives
(This special issue belongs to the Section Nutrition and Feeding)
Growth, Metabolism, and Flesh Quality in Aquaculture Nutrition
edited by and Xugan Wu
submission deadline 15 Nov 2025 | 5 articles | Viewed by 7906 | Submission Open
Keywords: nutrients; additives; medicinal plants; new protein sources; growth; metabolism; flesh quality
(This special issue belongs to the Section Nutrition and Feeding)
Molecular Genetics and Genomics of Marine Fishes
edited by Shengyong Xu, , , Binbin Shan, and Shaolei Sun
submission deadline 15 Nov 2025 | 3 articles | Viewed by 2206 | Submission Open
Keywords: marine fish; genome assembly; mitochondrial DNA; population genetics/genomics; phylogenetics/phylogenomics; genetic diversity; genetic variation; adaptive evolution; DNA barcoding; fisheries management
(This special issue belongs to the Section Genetics and Biotechnology)
Germplasm Resources and Genetic Breeding of Aquatic Animals
edited by and
submission deadline 15 Nov 2025 | 2 articles | Viewed by 1388 | 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)
Application of Artificial Intelligence in Aquaculture
edited by , Chao Zhou and
submission deadline 20 Nov 2025 | 5 articles | Viewed by 6798 | Submission Open
Keywords: aquaculture; fishery; fish behavior; intelligent recognition; deep learning; environmental monitoring; environmental interaction mechanisms
Fish Farming in Recirculating Aquaculture Systems
edited by Baoliang Liu and Wenyang Li
submission deadline 20 Nov 2025 | 2 articles | Viewed by 4214 | Submission Open
Keywords: recirculating aquaculture system; indoor aquaculture; zero water exchange aquaculture; aquaculture environment
(This special issue belongs to the Section Sustainable Aquaculture)
Advances in Impacts of Shrimp Feed Additives and Raising Conditions on Shrimp Growth and Immune Responses
edited by Luis Otavio Brito and Suzianny Maria Bezerra Cabral Da Silva
submission deadline 20 Nov 2025 | Viewed by 412 | Submission Open
Keywords: feed additive; shrimp culture; growth; economic benefits; immune responses; immunostimulants; disease resistance; intestinal health
(This special issue belongs to the Section Nutrition and Feeding)
Zooplankton Production Applied to Aquaculture submission deadline 20 Nov 2025 | Viewed by 282 | 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)
Diet and Intestinal Microbiota of Fish
edited by Qianwen Ding, and Tsegay Teame
submission deadline 20 Nov 2025 | Viewed by 210 | Submission Open
Keywords: fish gut microbiota; dietary modulation; host-microbe interaction; probiotics; aquaculture sustainability; microbial biomarkers; metagenomics; antibiotic resistance
(This special issue belongs to the Section Nutrition and Feeding)
Aquatic Animal Diseases and Vaccine Development
edited by Aijun Lv
submission deadline 20 Nov 2025 | Viewed by 162 | Submission Open
Keywords: aquatic animal diseases; etiology; epidemiology; host immune response; vaccine; prevention and control
(This special issue belongs to the Section Welfare, Health and Disease)
Applications of Acoustics in Marine Fisheries
edited by
submission deadline 24 Nov 2025 | 2 articles | Viewed by 1424 | Submission Open
Keywords: fisheries; echosounder; sonar; acoustics; biomass
(This special issue belongs to the Section Fishery Facilities, Equipment, and Information Technology)
Mesopelagic Fish Ecology, Biology and Evolution
edited by , María Quintela and Pilar Olivar
submission deadline 30 Nov 2025 | 2 articles | Viewed by 5228 | Submission Open
Keywords: vertical migrations; biological pump; oxygen minimum zones; lanternfish; hatchetfish; lightfishes; bristlemouths; deep-sea; twilight zone; fisheries; biogeography; population genetics; connectivity; feeding ecology
Fish Nutrition and Immunology
edited by
submission deadline 30 Nov 2025 | 3 articles | Viewed by 4621 | Submission Open
Keywords: fish; nutrition; immunity; immune additives
(This special issue belongs to the Section Nutrition and Feeding)
Integrative Taxonomy and Molecular Systematics of Fishes
edited by , Pedro Henrique Negreiros de Bragança, Elisabeth Henschel and Grazielle Fernanda Evangelista Gomes
submission deadline 30 Nov 2025 | 1 articles | Viewed by 1176 | Submission Open
Keywords: ABGD; ASAP; barcode; COI; eDNA; NGS; multi-locus; single-locus; species delimitation; bPTP; mPTP; GMYC
(This special issue belongs to the Section Taxonomy, Evolution, and Biogeography)
Ecology of Fish: Age, Growth, Reproduction and Feeding Habits submission deadline 30 Nov 2025 | Viewed by 202 | Submission Open
Keywords: age; growth; reproductive ecology; feeding ecology; population dynamics
(This special issue belongs to the Section Biology and Ecology)
Life History and Population Dynamics of Marine Fish
edited by Peter G. Coulson
submission deadline 30 Nov 2025 | Viewed by 196 | Submission Open
Keywords: otoliths; age and growth; maturation; spawning time and duration; life history ratio (LHR); mortality and recruitment
Vantage Points in the Morphology of Aquatic Organisms
edited by Peter S. Johnston
submission deadline 5 Dec 2025 | 2 articles | Viewed by 1023 | Submission Open
Keywords: morphology; palaeontology; aquatic; vertebrate; invertebrate; fish; cetacean
(This special issue belongs to the Section Biology and Ecology)
Integrated Multi-Trophic Aquaculture (IMTA)
edited by Patricia Moraes-Valenti and
submission deadline 10 Dec 2025 | 2 articles | Viewed by 1232 | 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)
Prebiotics, Probiotics, and Symbiotics in Fish and Shellfish Nutrition and Feed Technology
edited by
submission deadline 10 Dec 2025 | Viewed by 494 | Submission Open
Keywords: prebiotics; probiotics; synbiotics; functional feed; fish and shellfish health; fish and shellfish quality
(This special issue belongs to the Section Nutrition and Feeding)
Aquatic Ecotoxicology: Field and Laboratory Approaches
edited by Yuri Dornelles Zebral
submission deadline 15 Dec 2025 | 1 articles | Viewed by 3827 | 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)
Environmental Physiology of Aquatic Animals
edited by
submission deadline 20 Dec 2025 | 8 articles | Viewed by 10644 | Submission Open
Keywords: aquatic animals; adaptability; environmental response; physiological mechanism; propagation and breeding  
(This special issue belongs to the Section Physiology and Biochemistry)
New Conservation Strategies for Freshwater and Marine Fishes: Habitat Is the Key submission deadline 20 Dec 2025 | 3 articles | Viewed by 2571 | Submission Open
Keywords: cumulative impacts; habitat diversity; habitat and passage (e.g.; jumping) guilds; biotic indices along anthropogenic gradients; mitigation; fish populations and assemblages
Aquatic Animal Disease Control
edited by Dongling Zhang
submission deadline 20 Dec 2025 | Viewed by 168 | Submission Open
Keywords: disease control; pathogen; immune; drug; probiotic; disease resistance breeding; transcriptome; genome; water environment; gene
(This special issue belongs to the Section Welfare, Health and Disease)
Genetic and Molecular Mechanisms Underlying Economic Traits in Crustaceans
edited by Jiajia Wang and Haochang Su
submission deadline 20 Dec 2025 | Viewed by 156 | Submission Open
Keywords: molecular mechanism; genetics; multi-omics; economic traits; growth; reproduction and development; sex determination; disease resistance; stress resistance
(This special issue belongs to the Section Genetics and Biotechnology)
Physiological Responses of Fish to Stressors
edited by Xiaohong Liu
submission deadline 25 Dec 2025 | Viewed by 186 | Submission Open
Keywords: wild fish; aquatic fish; physiological responses; new technology; molecular mechanisms; evolutionary perspectives; adaptation
Sustainable Fisheries Dynamics
edited by Rong Wan and Junbo Zhang
submission deadline 30 Dec 2025 | 4 articles | Viewed by 2542 | 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)
Microbial Pathogens, Disease Control and Veterinary Drug Use in Aquaculture
edited by , and Yali Wang
submission deadline 30 Dec 2025 | 2 articles | Viewed by 1669 | Submission Open
Keywords: diseases; pathogens; control; aquaculture
(This special issue belongs to the Section Welfare, Health and Disease)
Prevention and Control of Aquatic Animal Diseases
edited by
submission deadline 31 Dec 2025 | 6 articles | Viewed by 14260 | Submission Open
Keywords: aquatic animal diseases; fish vaccines; immunostimulants; Chinese herbs in aquaculture; aquatic animal pathogen; host-pathogen interaction; disease-resistance genes
(This special issue belongs to the Section Welfare, Health and Disease)
Habitat as a Template for Life Histories of Fish
edited by
submission deadline 31 Dec 2025 | 5 articles | Viewed by 6569 | Submission Open
Keywords: ecological trait trade-offs; environmental stress; life history traits; local adaptation; phenotypic plasticity; reaction norms
(This special issue belongs to the Section Biology and Ecology)
Movement Ecology and Conservation of Large Marine Fishes (and Sharks)
edited by Chi-Hin Lam
submission deadline 31 Dec 2025 | 1 articles | Viewed by 2791 | Submission Open
Keywords: navigation; tagging; sensing; fisheries; energetics; artificial intelligence; ocean circulation; currents; circadian rhythm
(This special issue belongs to the Section Biology and Ecology)
Fish Health and Welfare in Aquaculture and Research Settings
edited by , Marcelo Ferreira Torres and
submission deadline 31 Dec 2025 | 4 articles | Viewed by 2699 | 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)
An Issue in Honor of Yoram Avnimelech: Application of Biofloc Technology (BFT) submission deadline 31 Dec 2025 | 2 articles | Viewed by 2361 | Submission Open
Keywords: bacterial community; super intensive; circular economy; sustainability; nitrification; heterotrophic
(This special issue belongs to the Section Sustainable Aquaculture)
Biology and Conservation of Elasmobranchs
edited by María-Del-Pilar Blanco-Parra and Carlos J. Polo-Silva
submission deadline 31 Dec 2025 | 1 articles | Viewed by 1675 | Submission Open
Keywords: sharks; rays; ecological role; movements; distribution; ecological niche; conservation
(This special issue belongs to the Section Biology and Ecology)
Fish Monitoring and Stock Assessment for Fishery Management
edited by , Jiajun Li and Jiangtao Fan
submission deadline 31 Dec 2025 | 1 articles | Viewed by 845 | Submission Open
Keywords: fish survey and monitoring technology; fisheries management; remote sensing; environmental DNA (eDNA); acoustics
(This special issue belongs to the Section Fishery Economics, Policy, and Management)
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 31 Dec 2025 | 1 articles | Viewed by 647 | 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)
Advancing Research for the Management and Conservation of Diadromous Fish
edited by Carlos Antunes, and Ester Dias
submission deadline 31 Dec 2025 | Viewed by 215 | Submission Open
Keywords: diadromous fishes; climate change; conservation; fisheries management; genetic diversity; habitat connectivity
(This special issue belongs to the Section Biology and Ecology)
Advances in Fish Reproductive Physiology
edited by Walisson De Souza e Silva, Deliane Cristina Costa, and Raphael Nogueira Bahiense
submission deadline 10 Jan 2026 | 3 articles | Viewed by 5042 | Submission Open
Keywords: reproduction; fish; endocrinology; gametogenesis; spawning; hormones; gonads; aquaculture; ovulation; spermatogenesis
(This special issue belongs to the Section Physiology and Biochemistry)
Advances in Catfish Research
edited by , , and Shiyong Zhang
submission deadline 10 Jan 2026 | 1 articles | Viewed by 607 | Submission Open
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 271 | Submission Open
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 5903 | 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 | 6 articles | Viewed by 5421 | Submission Open
Keywords: eco-physiology; behavior monitoring; ecological adaptation; climate change; human activities
(This special issue belongs to the Section Environment and Climate Change)
Biology and Culture of Marine Invertebrates submission deadline 15 Jan 2026 | 3 articles | Viewed by 1525 | Submission Open
Keywords: marine invertebrates; biology; aquaculture
(This special issue belongs to the Section Aquatic Invertebrates)
Seafood Products: Nutrients, Safety, and Sustainability
edited by and Marília Miotto
submission deadline 15 Jan 2026 | 1 articles | Viewed by 909 | 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)
Conservation and Population Genetics of Fishes
edited by Dongmei Xiong
submission deadline 20 Jan 2026 | 4 articles | Viewed by 4521 | 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 Simon Das and Leo Nankervis
submission deadline 20 Jan 2026 | 2 articles | Viewed by 2539 | 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 | 2 articles | Viewed by 1461 | 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 175 | 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 253 | 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 | 4 articles | Viewed by 3443 | 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 1528 | Submission Open
Keywords: sustainable aquaculture; aquaculture developments; freshwater aquaculture; sustainable inland fisheries; aquatic invasive species
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