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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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Effects of Feed and Supplementation on the Metabolism, Microbiota and Immune Response of Fish

edited by

Dariel Tovar-Ramı́rez

and Andressa Teles

submission deadline 30 Nov 2026 | 1 articles | Viewed by 1247 | Submission Open

Keywords: feed additives; microbiota; aquafeeds; metabolism; immunology

(This special issue belongs to the Section Nutrition and Feeding)

Passive Acoustic Monitoring of Aquatic Animals

edited by

Zhitao Wang

submission deadline 30 Nov 2026 | 1 articles | Viewed by 840 | Submission Open

Keywords: passive acoustic monitoring (PAM); bioacoustics; cetaceans; marine mammal; communication; anthropogenic noise; automated detection; conservation bioacoustics; soundscape ecology

Molecular Research on Immunological Responses in Aquatic Animals

edited by

Fang Han

submission deadline 30 Nov 2026 | 1 articles | Viewed by 594 | Submission Open

Keywords: immunological responses; molecular immunity; immune signaling pathway; host–pathogen interaction; mucosal immunity; immune regulation; disease resistance

(This special issue belongs to the Section Welfare, Health and Disease)

Enforcement and Compliance in Fisheries

edited by Geir Hønneland

submission deadline 30 Nov 2026 | Viewed by 497 | 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)

Integrated Strategies for Shark Conservation: Bridging Fisheries Science, Ecology, and Adaptive Management

edited by Jorge Homero Rodrígez-Castro and José Alberto Ramírez de León

submission deadline 30 Nov 2026 | Viewed by 379 | Submission Open

Keywords: shark conservation; population assessment; marine protected areas; bycatch and mitigation; climate change and distribution; connectivity and genetics; ecosystem approach to fisheries; adaptive management and governance; telemetry and novel technologies; data limited fisheries

(This special issue belongs to the Section Biology and Ecology)

10th Anniversary of Fishes: Microbiome, Functional Feed, Precision Nutrition, and AI Approaches in Aquaculture

edited by

Marina Paolucci

submission deadline 30 Nov 2026 | Viewed by 205 | Submission Open

Keywords: precision aquaculture; artificial intelligence; functional feeds; fish microbiome; smart feeding systems

(This special issue belongs to the Section Nutrition and Feeding)

Infectious Diseases and Immune Responses in Aquatic Animals

edited by Shuting Xiong and Pengfei Chu

submission deadline 30 Nov 2026 | Viewed by 162 | Submission Open

Keywords: host–pathogen interactions; innate immunity; adaptive immunity; immune regulation; inflammation; aquatic animal health; infectious diseases

(This special issue belongs to the Section Welfare, Health and Disease)

Applications of Genome-Based Technologies in Aquaculture

edited by Peng Yu

submission deadline 1 Dec 2026 | 3 articles | Viewed by 2066 | 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)

Freshwater Fishes: Taxonomic Diversity, Conservation Concerns, and Future Directions

edited by Luisa Maria Sarmento-Soares

submission deadline 5 Dec 2026 | 4 articles | Viewed by 4943 | 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)

Nutritional Immunology and Intestinal Health in Aquatic Animals

edited by

Hui Fei

, Mengmeng Huang and

Shun Yang

submission deadline 15 Dec 2026 | 1 articles | Viewed by 708 | Submission Open

Keywords: nutritional immunology; intestinal health; gut microbiota; functional feed additives; immunostimulant; mucosal immunity; disease resistance; sustainable aquaculture; omics technologies; antibiotic-free

(This special issue belongs to the Section Nutrition and Feeding)

New Conservation Strategies for Freshwater and Marine Fishes: Habitat Is the Key

edited by

Robert L. Vadas, Jr.

submission deadline 20 Dec 2026 | 7 articles | Viewed by 7350 | Submission Open

Keywords: cumulative impacts; habitat diversity; habitat and passage (e.g., jumping) guilds; biotic indices along anthropogenic gradients; mitigation; fish populations and assemblages

Life in Layers: Age and Growth of Fishes

edited by

Antonela Sovulj

and

Branko Dragičević

submission deadline 20 Dec 2026 | 1 articles | Viewed by 1841 | 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)

Challenges in Fish Anaesthesia and Analgesia: Welfare, Biochemical Mechanisms, and Toxicological Assessment

edited by

Carlos Alberto e Silva Venâncio

Luís Félix

and

Tânia Martins

submission deadline 20 Dec 2026 | Viewed by 228 | Submission Open

Keywords: anaesthesia; analgesia; animal welfare; biochemical mechanisms; toxicological assessment; pain; stress indicators; fish models

(This special issue belongs to the Section Physiology and Biochemistry)

Impact of Climate Change and Adverse Environments on Aquaculture

edited by

Yiran Hou

Bin Wen

and

Linjun Zhou

submission deadline 25 Dec 2026 | 2 articles | Viewed by 3877 | 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)

Advances in the Diagnosis and Prevention of Aquatic Animal Diseases in Aquaculture

edited by Ruijun Li

submission deadline 25 Dec 2026 | 1 articles | Viewed by 821 | Submission Open

Keywords: aquatic animal diseases; sustainable prevention and control; antibiotic replacement; bioactive compound; next-generation vaccines; host-pathogen interaction; biocontrol strategies; emerging epidemics

(This special issue belongs to the Section Welfare, Health and Disease)

Molecular Mechanisms of Gametogenesis in Aquatic Animals

edited by

Yifan Liu

and

Bingjian Liu

submission deadline 25 Dec 2026 | Viewed by 335 | Submission Open

Keywords: gametogenesis; reproductive biology; sex determination; molecular mechanisms; adaptive evolution; aquatic organisms

Dietary Supplementation in Aquaculture—2nd Edition

edited by

Neculaí Patriche

and

Elena Sîrbu

submission deadline 25 Dec 2026 | Viewed by 157 | Submission Open

Keywords: nutrition; feed additives; physiological responses; hematology; immune response; nutritional quality

(This special issue belongs to the Section Nutrition and Feeding)

Progress in Trout Farming

edited by

Changan Wang

and

Jingzhuang Zhao

submission deadline 25 Dec 2026 | Viewed by 134 | Submission Open

Keywords: trout farming; rainbow trout; aquaculture; fish nutrition; fish health; sustainable aquaculture; breeding and genetics; recirculating aquaculture systems; disease prevention; aquaculture technology

(This special issue belongs to the Section Sustainable Aquaculture)

Epigenetics and Adaptation of Aquatic Animals

edited by Zhe Zheng

submission deadline 25 Dec 2026 | Viewed by 97 | Submission Open

Keywords: aquatic animals; epigenetic mechanisms; adaptation

(This special issue belongs to the Section Genetics and Biotechnology)

An Issue in Honor of Yoram Avnimelech: Application of Biofloc Technology (BFT)

edited by

Felipe Boéchat Vieira

Mauricio G.C. Emerenciano

and

Wilson Wasielesky

submission deadline 31 Dec 2026 | 8 articles | Viewed by 11759 | Submission Open

Keywords: bacterial community; super intensive; circular economy; sustainability; nitrification; heterotrophic

(This special issue belongs to the Section Sustainable Aquaculture)

Engineering Solutions for Sustainable Offshore Aquaculture and Fisheries

edited by Changtao Guan,

Gang Wang

and

Yuyan Li

submission deadline 31 Dec 2026 | 6 articles | Viewed by 5178 | Submission Open

Keywords: aquaculture engineering; offshore aquaculture; aquaculture equipment; fishery engineering; fishing gear

(This special issue belongs to the Section Fishery Facilities, Equipment, and Information Technology)

Application of Otoliths in Fish Ecology and Fisheries

edited by

Alberto Teodorico Correia

Wann-Nian Tzeng

and

Esteban Avigliano

submission deadline 31 Dec 2026 | 5 articles | Viewed by 4594 | Submission Open

Keywords: fish otoliths; fish biology and ecology; fisheries science; stock structure; population connectivity; migration pathways; aquatic pollution

(This special issue belongs to the Section Biology and Ecology)

Towards Sustainable Aquafeeds: Strategies and Mechanisms of Fish Meal and Oil Replacement

edited by Chang'an Wang

submission deadline 31 Dec 2026 | 6 articles | Viewed by 3690 | Submission Open

Keywords: fish meal replacement; alternative plant proteins; insect meal; single-cell protein; anti-nutritional factors; gut health; flesh quality; nutrient digestibility; functional feed additives; sustainable aquaculture

(This special issue belongs to the Section Nutrition and Feeding)

Impacts of Climate Change on Physiology and Ecology of Aquatic Organisms

edited by

Zhihua Li

, Xinguo Zhao, Yuming Zhang and Ping Li

submission deadline 31 Dec 2026 | 1 articles | Viewed by 1051 | Submission Open

Keywords: climate change; aquatic organisms; physiological ecology; adaptation strategies; environmental management

Genomic Selection, Genome-Wide Association and Omics in Aquaculture

edited by

Weiwei Zheng

and

Yangzhen Li

submission deadline 31 Dec 2026 | 2 articles | Viewed by 948 | Submission Open

Keywords: genomic selection; genome-wide association; multi-omics integration; genomics; transcriptomics; metabolomics; stress adaptation; genetic breeding; economic and biological traits; aquaculture

(This special issue belongs to the Section Genetics and Biotechnology)

10th Anniversary of Fishes: Advances in Fish Neuroendocrinology

edited by

José A. Muñoz-Cueto

José Antonio Paullada-Salmeron

and

Bin Wang

submission deadline 31 Dec 2026 | Viewed by 573 | Submission Open

Keywords: fish neuroendocrinology; reproduction; neuropeptides; neurohormones; stress physiology; feeding; circadian rhythms; developmental biology; endocrine disruption; aquaculture; teleosts

(This special issue belongs to the Section Physiology and Biochemistry)

Anthropogenic Pollution, Contaminant Dynamics and Ecosystem Health in Fish and Aquatic Ecosystems

edited by

Niki Milatou

and

Monique Mancuso

submission deadline 31 Dec 2026 | Viewed by 228 | Submission Open

Keywords: microplastics; anthropogenic particles; heavy metals; mercury; bioaccumulation; trophic transfer; ecotoxicology; fish ecology; seafood safety; aquatic pollution; biomonitoring

(This special issue belongs to the Section Environment and Climate Change)

Digestive Physiology of Aquatic Organisms

edited by

Manuel Díaz López

and

Francisca P. Martínez

submission deadline 31 Dec 2026 | Viewed by 216 | Submission Open

Keywords: digestive physiology; aquatic organisms; alternative ingredients; intestinal health; bioactive compounds; in vitro models; in silico models

(This special issue belongs to the Section Physiology and Biochemistry)

Toxicology of Anthropogenic Pollutants in Fish—2nd Edition

edited by

Zhongdian Dong

submission deadline 31 Dec 2026 | Viewed by 203 | Submission Open

Keywords: anthropogenic pollutants; fish toxicology; aquatic ecosystems; emerging contaminants; organic pollutants; endocrine disruptors; antibiotics and pharmaceuticals; microplastics and nanoplastics; trace metals; pollutant mixtures; bioaccumulation; ecological risk assessment; environmental monitoring

(This special issue belongs to the Section Environment and Climate Change)

Physiological Adaptations of Fish to Hypoxia

edited by

Weijie Mu

submission deadline 31 Dec 2026 | Viewed by 161 | Submission Open

Keywords: hypoxia tolerance; oxygen sensing; gill remodeling; metabolic suppression; hemoglobin affinity; hypoxia-inducible factor (HIF); anaerobic metabolism; aquatic surface respiration; cardiorespiratory adaptation; fish physiology

(This special issue belongs to the Section Physiology and Biochemistry)

Impacts of Environmental Stressors on Aquatic Animals: Mechanisms, Risk Assessment and Mitigation Strategies

edited by Yuhang Hong,

Cong Zhang

, Xiaozhen Yang, Liulan Zhao, Xiaowen Long and

Meimei Liu

submission deadline 5 Jan 2027 | 2 articles | Viewed by 2117 | Submission Open

Keywords: pesticides; aquatic toxicology; oxidative stress; antioxidative signaling pathways; functional diet; natural antioxidants

(This special issue belongs to the Section Environment and Climate Change)

Studies on Age, Growth and Reproduction of Fishes

edited by

Rosalia Ferreri

submission deadline 10 Jan 2027 | 2 articles | Viewed by 3157 | Submission Open

Keywords: fish reproduction; fish growth; age; otolith; gonad maturity; spawning ecology; length at maturity; age at maturity

(This special issue belongs to the Section Biology and Ecology)

Advances in Tilapia Aquaculture

edited by

Carlos Eduardo Copatti

, Rodrigo Fortes-Silva and Leandro Santos Costa

submission deadline 10 Jan 2027 | 3 articles | Viewed by 2804 | 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)

Aquaculture Feeds and Feed Additives—Toward Precise and Sustainable Nutrition

edited by

Wilson Massamitu Furuya

, Thais Pereira Da Cruz, Lilian Carolina Rosa Da Silva, Leandro Portz and

Álvaro José De Almeida Bicudo

submission deadline 10 Jan 2027 | 3 articles | Viewed by 2003 | Submission Open

Keywords: precision nutrition; functional feed additives; dustainable aquafeeds; nutrient metabolism; alternative protein sources; gut microbiome modulation; feed efficiency; immunonutrition; digestive physiology

(This special issue belongs to the Section Nutrition and Feeding)

Aquatic Animal Health and Molecular Immunology

edited by Chao Li

submission deadline 10 Jan 2027 | Viewed by 161 | Submission Open

Keywords: aquatic animal health; molecular immunology; innate immunity; multi-omics; host–pathogen interactions; disease resistance; vaccine development; sustainable aquaculture

(This special issue belongs to the Section Welfare, Health and Disease)

Modeling Approach for Fish Stock Assessment

edited by Margarita M. Rincón Hidalgo and

Heng Zhang

submission deadline 15 Jan 2027 | 6 articles | Viewed by 6972 | Submission Open

Keywords: fish; stock assessment; modeling

(This special issue belongs to the Section Biology and Ecology)

Reproductive Physiology of Fishes

edited by

Huapu Chen

and Wei Wang

submission deadline 15 Jan 2027 | 6 articles | Viewed by 5269 | Submission Open

Keywords: reproductive endocrinology; gametogenesis; sex determination and differentiation; broodstock management; environmental regulation; molecular breeding

(This special issue belongs to the Section Physiology and Biochemistry)

Physiological Responses of Fish to Stressors

edited by Xiaohong Liu

submission deadline 15 Jan 2027 | 1 articles | Viewed by 1591 | Submission Open

Keywords: wild fish; aquatic fish; physiological responses; new technology; molecular mechanisms; evolutionary perspectives; adaptation

Top Predators Under Climate Extremes: Assessing Habitat Dynamics in Marginal Seas

edited by Wenbo Yang, Xiaomei Wang and Peng Lian

submission deadline 15 Jan 2027 | Viewed by 406 | Submission Open

Keywords: continental shelf fisheries; habitat modelling; eXplainable AI (XAI); top predators; marine mammals

(This special issue belongs to the Section Environment and Climate Change)

Environmental Change Impacts on Aquatic Animal Communities

edited by

Thiago Bernardi Vieira

submission deadline 20 Jan 2027 | 1 articles | Viewed by 1020 | 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)

Sustainable Fisheries Dynamics—2nd Edition

edited by

Rong Wan

and Junbo Zhang

submission deadline 25 Jan 2027 | Viewed by 99 | 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)

Advances in the Physiology of Aquatic Organisms

edited by

Gisele Cristina Favero

submission deadline 31 Jan 2027 | 5 articles | Viewed by 6336 | Submission Open

Keywords: physiology of the digestive system; physiology of osmoregulation; physiology of growth; physiology of respiration; physiology of reproduction; physiology of pigmentation

(This special issue belongs to the Section Physiology and Biochemistry)

Technology for Fish and Fishery Monitoring—2nd Edition

edited by Vincent Kerzérho

submission deadline 31 Jan 2027 | 3 articles | Viewed by 2626 | Submission Open

Keywords: fisheries; biologging; physiologging; biotelemetry; monitoring; tracking; sensors; embedded systems; electronic tags; machine learning; artificial intelligence (AI); AUV; ROV

(This special issue belongs to the Section Fishery Facilities, Equipment, and Information Technology)

Feeding the Future: Diet Data and Ecosystem Perspectives on Fish Food Webs

edited by Letterio Guglielmo,

Pierluigi Carbonara

and

Antonia Granata

submission deadline 31 Jan 2027 | 3 articles | Viewed by 2370 | Submission Open

Keywords: fish food webs; diet analysis; DNA metabarcoding; stable isotopes; fatty acids; trophic networks; ecosystem approach; FAIR data; trophic position; feeding ecology

(This special issue belongs to the Section Biology and Ecology)

Molecular Mechanisms of the Non-Specific Immunity of Fish When Responding to Pathogen Infections

edited by

Yu Huang

and

Qi Li

submission deadline 31 Jan 2027 | 2 articles | Viewed by 1447 | Submission Open

Keywords: teleost immunity; immune signaling pathways; viral and bacterial infections; virulence factors

(This special issue belongs to the Section Welfare, Health and Disease)

Advances in Aquaponics: Science-Based Innovation for Circular Aquaculture and Food Security

edited by

Carlos Cristian Martínez-Chávez

and

Laura Patricia Silva Ledezma

submission deadline 31 Jan 2027 | Viewed by 537 | Submission Open

Keywords: aquaponics; multitrophic aquaponics; science-based aquaponics; aquaponic feeds; microbiota; bacterial consortia; native species; high-value species; circular aquaculture; economic feasibility

(This special issue belongs to the Section Sustainable Aquaculture)

Advances in Fisheries Medicine and Pharmacology

edited by Zheng Zhang

submission deadline 31 Jan 2027 | Viewed by 100 | Submission Open

Keywords: fish diseases; fishery drugs; fish pathogens; disease control

(This special issue belongs to the Section Welfare, Health and Disease)

Aquatic Animal Chemical Communication: From Mechanism to Evolution

edited by Hangkyo Lim

submission deadline 31 Jan 2027 | Viewed by 90 | Submission Open

Keywords: pheromones; semiochemicals; olfaction; signal transduction; reproductive behavior; chemosensory evolution; environmental pollution; invasive species; aquacultur; climate change

Multimodal Sensing Technologies and Intelligent Equipment for Precision Aquaculture

edited by Shijing Liu, Pengcheng Nie and Jiapeng Zhang

submission deadline 31 Jan 2027 | Viewed by 58 | Submission Open

Keywords: precision aquaculture; multimodal sensing; intelligent equipment; intelligent data analytics; decision support; artificial intelligence

(This special issue belongs to the Section Fishery Facilities, Equipment, and Information Technology)

Application of Remote Sensing to Fisheries

edited by Fenghua Tang and

Guoqing Zhao

submission deadline 1 Feb 2027 | 6 articles | Viewed by 4017 | Submission Open

Keywords: remote sensing; resource assessment; spatial–temporal dynamics; climate change; environmental factor; night-light remote sensing; electronic monitoring (EM)

Displaying special issue 51-100 on page 2 of 3.

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