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Histopathological studies of aquatic animals refer to the microscopic examination of tissues and organs in order to detect deviations from the expected microscopic or macroscopic structure. Information obtained from the study of histomorphological lesions in aquatic animals can be a useful addition when determining the general state of health of aquatic animals, especially if chronic stressors and/or pathogens are present. Compared to mammals, postmortem autolysis progresses very rapidly in most aquatic organisms. This fact makes histopathological examination quite complex and demanding, not only in a histotechnical sense. A prerequisite for a successful study is the baseline knowledge of physiological processes and histological architecture of the studied species. Therefore, the aim of this Special Issue is to contribute to the current state of knowledge on the histopathology of aquatic animals and to provide a professional and encyclopedic tool for biologists and veterinarians.

micro-nano plastics --- fish --- organism model --- histopathology --- blood biomarkers --- microlipoma --- liver --- Barbus balcanicus --- 3D reconstruction --- nutrition --- aquaculture --- fishmeal replacement --- land animal proteins --- histology --- intestinal microbiota --- Sparus aurata --- toxicity --- effect --- invertebrate --- mussels --- Aeromonas spp. --- rainbow trout --- bacteria --- infection --- antinutritional factors --- soybean --- gut health --- environmental monitoring --- histopathological biomarkers --- histopathological alterations --- fish gills --- atrazine --- Purkinje --- cerebellum --- myocytes --- toxicology --- IP3Rs --- Vistonis Lake --- physico-chemical parameters --- gills --- HSPs --- MARKs --- Na+-K+ ATPase --- hepatorenal --- pathology --- toxicosis --- biomarkers --- adult Xenopus laevis --- n/a

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This special edition, Seafood Sustainability Series I, includes two articles on seafood consumption, four on sustainable capture fisheries, and four on sustainable aquaculture. The articles on consumption explore an alternative perspective on sustainable seafood movement governance to consumer- or retail/brand-driven logic and analyze fish tissues for human consumption to detect contaminants like flame retardant chemicals hazardous to human health sourced from microplastic pollutants. Articles on capture fisheries include: • A study of harvest strategies to achieve ecological, economic, and social sustainability objectives; • An examination of the economic leverages and resources needed to sustain coastal artisanal fishing communities in Africa; • A review of sustainability planning efforts to combat fishing community threats like declining participation, aging infrastructure and fleets, gentrification, reduced resource access, market competition, and environmental stresses; • An analysis of responsible fish consumption through a life-promoting sustainable food system for school-age children. Three of the articles on aquaculture focus on studying consumer preferences related to sustainable aquaculture based on the estimation of how the attributes of aquaculture products (including product labeling and perception) affect consumers’ purchase decisions. The other article questions the widely held assumption of sustainable substitutability of plant protein sources (e.g., soymeal) for fishmeal in aquaculture production.

Research & information: general --- Biology, life sciences --- Fisheries & related industries --- corporate social responsibility --- ecolabels --- ethical consumption --- green marketing --- supply chain management --- sustainable seafood --- contamination --- fish --- fisheries --- flame retardants --- health --- PBDE --- seafood --- trophic level --- sustainability --- sensory --- consumers --- artisanal fishers --- double-hurdle --- fish marketing --- fish mothers --- aquaculture --- IMTA --- ecolabel --- choice experiments --- latent class --- WTP --- Triple bottom line fisheries management --- harvest strategy development --- social objectives --- economic objectives --- ecological objectives --- shrimp feed --- fishmeal --- plant ingredients --- marine resources --- terrestrial resources --- contingent valuation method --- double-bounded dichotomous choice --- environmental economics --- environmental psychology --- New Ecological Paradigm --- seafood preference --- copper-alloy nets --- fishing community --- strategic planning --- port --- California --- school lunch programme --- Italy --- healthy nutrition --- oily fish --- Almost Ideal Demand System --- Deepwater Horizon --- frozen seafood market --- retail scanner data --- corporate social responsibility --- ecolabels --- ethical consumption --- green marketing --- supply chain management --- sustainable seafood --- contamination --- fish --- fisheries --- flame retardants --- health --- PBDE --- seafood --- trophic level --- sustainability --- sensory --- consumers --- artisanal fishers --- double-hurdle --- fish marketing --- fish mothers --- aquaculture --- IMTA --- ecolabel --- choice experiments --- latent class --- WTP --- Triple bottom line fisheries management --- harvest strategy development --- social objectives --- economic objectives --- ecological objectives --- shrimp feed --- fishmeal --- plant ingredients --- marine resources --- terrestrial resources --- contingent valuation method --- double-bounded dichotomous choice --- environmental economics --- environmental psychology --- New Ecological Paradigm --- seafood preference --- copper-alloy nets --- fishing community --- strategic planning --- port --- California --- school lunch programme --- Italy --- healthy nutrition --- oily fish --- Almost Ideal Demand System --- Deepwater Horizon --- frozen seafood market --- retail scanner data