The longitudinal gradient prevails over local characteristics in shaping fish species distributions in a large neotropical reservoir
January 2026
In large reservoirs, spatial gradients are the primary drivers of fish species distributions. However, local characteristics can also influence fish distributions and assemblage structure. We assessed...
Intermittent hypoxic training remodels the hepatic mitochondrial network and upregulates ANT expression to enhance hypoxia tolerance in Micropterus salmoides
Available online 8 December 2025
Oxygen is critical for life, and aquatic organisms are especially susceptible to hypoxic stress caused by environmental fluctuations. However, the mechanisms underpinning their tolerance to hypoxia...
cdk2 is essential for synapsis completion and gametogenesis in zebrafish
Available online 3 December 2025
Cyclin-dependent kinase 2 (CDK2), encoded by the cdk2 gene, facilitates the G1/S transition, a pivotal phase for DNA replication during cell proliferation. While cdk2 is widely expressed in mice, its...
Single and multiple stressors alter phytoplankton biomass and diversity with contrasting responses of Bacillariophyta and other phytoplankton
Available online 3 December 2025
Shallow lakes provide vital ecological services yet face escalating threats from climate warming, eutrophication, and imidacloprid pollution. Understanding how these stressors individually and interactively...
Antagonistic activity of Bacillus velezensis L09 isolated from crocodile gut against Aeromonas dhakensis: Mechanisms and potential for aquaculture applications
Available online 3 December 2025
The global aquaculture industry is facing increasing threats from multidrug-resistant pathogens, particularly Aeromonas dhakensis, which causes septicemia in crocodiles, causes severe infections in...
Physiological and growth responses of marine diatoms under different culture temperature
Available online 3 December 2025
The neurotoxin β-N-methylamino-L-alanine (BMAA) produced by marine diatoms has been implicated in the progression of neurodegenerative diseases. In this study, the physiological and growth responses...
Temporal hedonic regulation of feeding behavior in rainbow trout: a role for the opioid system under plant-based diets from first feeding onward
Available online 3 December 2025
In rainbow trout (Oncorhynchus mykiss), early exposure to plant-based diets devoid of fishmeal and fish oil may alter feed intake and affect both nutrient sensing and reward pathways. While homeostatic...
The mechanisms of farnesoid X receptor-mediated protection against high-fat diet-induced hepatic lipid deposition in yellow catfish (Pelteobagrus fulvidraco)
Available online 28 November 2025
High-fat diets (HFDs) are frequently used in aquaculture to enhance feed efficiency, yet they often induce hepatic steatosis by disrupting the balance between lipogenesis and lipolysis. In mammals,...
Detection assay improvements and distribution analyses of the invasive diatom Cymbella janischii from environmental DNA
Available online 27 November 2025
Recently, invasive species have become a major concern, and countermeasures are now part of the United Nations Sustainable Development Goals. Environmental DNA (eDNA) analysis, which enables high-sensitivity...
A dual functional transcriptome-derived Kunitz-like polypeptide from stony coral Porites lutea displays anti-inflammatory and anti-Parkinson's disease effects in vitro and in vivo
Available online 26 November 2025
Marine biota functions as a reservoir harboring highly diverse bioactive proteins and polypeptides for drug development. Although stony corals are renowned for their high productivity and the crucial...
Phosphorus and silicon starvation disrupts fatty acid balance in the diatom Nitzschia closterium f. minutissima and induces inflammatory responses in oyster larvae
Available online 24 November 2025
Phosphorus and silicon limitation has become an increasing ecological concern in the mollusk farming region of the Northern Yellow Sea, but its effects on the microalgae and mollusks that feed on them...
Dual function of SHMT2-p38α in metabolic disorders of carnivorous fish induced by high-carbohydrate and high-lipid feed
Available online 24 November 2025
Metabolic liver disease (MLD) is essentially a dynamic process of imbalance in metabolic homeostasis. The progression follows distinct stages from initial lipid deposition through inflammatory activation...
The method by which natural immunostimulants are included in the diet of gilthead seabream (Sparus aurata) modulates their physiological effects on mucosal tissues
Available online 21 November 2025
The development of the aquaculture industry is conditioned to the establishment of new strategies that guarantee the health status and welfare of fish. The use of phytogenic additives as natural immunostimulants...
Exploring microplastics in commercial bivalve species and in bivalve aquaculture waters: Insights from the southern Pacific
Available online 21 November 2025
Microplastics pose a significant potential threat to marine biota, with filter feeders among the most susceptible species. Bivalves are an important source of animal protein and micronutrients, therefore...
Gpx4a-mediated ferroptosis underlines prothioconazole-induced ocular defects in early-life zebrafish
Available online 13 November 2025
Prothioconazole (PTA), a commonly used triazolinthione fungicide, is often found as residue in aquatic environments and has shown toxicity and bioaccumulation potential in fish. Herein, we utilized...
In Memoriam: Professor Robert Mason Hughes
October 2025
Overlooked eDNA contamination in human-influenced ecosystems: a call to manage large-scale false positives in biodiversity assessments
October 2025
The use of environmental DNA (eDNA) has significantly revolutionized studies in biodiversity science. A crucial innovation of eDNA-based biodiversity assessment is the ability to detect species through...
Seasonal variation and driving factors of beta diversity of macroinvertebrate assemblages in subtropical Chinese high-mountain streams
October 2025
High-mountain stream ecosystems are recognized as ideal arenas for natural experiments and for ecological monitoring and assessment research, owing to their sensitivity to climate gradients and human-mediated...
Distribution and abundance of large pelagic predatory bony fishes in the northwestern Pacific over a half-century
October 2025
Large pelagic predatory fishes play an important role in marine ecosystems, occupying the highest position in food webs and accumulating energy and organic matter produced by aquatic organisms of lower...
A high-throughput phenome-based analysis of morphological variation and environmental adaptation in extremely high-altitude schizothoracine fishes
October 2025
Schizothoracine fishes are distributed in the Nagqu region, which is the hinterland of the Tibetan Plateau. They have adapted to the cold and strongly ultraviolet environment of the plateau and show...
The shared immunometabolic responses between dexamethasone-induced hepatobiliary syndrome and GCRV II-caused hemorrhagic disease reveal the pivotal role of autophagy and Hsp90 activity in metabolic and infectious diseases
October 2025
Contamination by dexamethasone (DEX) in aquatic environments is expected to rise significantly as it is used in the treatment of inflammation, allergies, and autoimmune disorders, especially COVID-19....
Long distance dispersal with kinship in the Yangtze River during early life stage of a freshwater fish
October 2025
Aggregation is suggested beneficial with foraging, defense, and other fitness for the group members. While long distance dispersal with kinship has been found in several marine fishes, similar cases...
Mitigating methane emissions during nitrogen removal in constructed wetlands
October 2025
As nitrogen removal requires anaerobic conditions for denitrification, which facilitates the production of methane (CH4), a potent greenhouse gas, it is a challenge to achieve nitrogen removal with...