Aquatic pollution from truck spills: Urgent action needed in Brazil and beyond
July 2025
On 29 January 2024, a truck accident spilled concentrated sulfonic acid into a river in Brazil's State of Santa Catarina. This disaster, which occurred in a protected area, killed various types of fish...
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Confronting the “knowledge-action gap” in invasive species prevention: A study of biosecurity behaviors among aquarium hobbyists in Illinois, USA
July 2025
Biological invasions threaten water resources worldwide owing to interrelated biological and anthropogenic drivers of change. Though the role of people in the (un)intentional spread of aquatic invasive...
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Neuroprotective Kunitz-like peptides identified from the octopus coral Galaxea fascicularis through transcriptomic analysis
July 2025
Parkinson's disease (PD) is the second most common neurodegenerative disease. Potassium voltage-gated channels are potential targets for the treatment of PD. The aim of this study is to identify novel...
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An updated range-wide assessment of Neophocaena: Threats and priorities for research and conservation
July 2025
The genus Neophocaena includes two species, the Indo-Pacific finless porpoise (N. phocaenoides) and the Narrow-ridged finless porpoise (N. asiaeorientalis). The Indo-Pacific species is found in coastal...
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Key environmental factors determining life history strategies of river fishes and their historical changes in the Yangtze River
July 2025
Life history theory predicts that species-specific life history traits are shaped by variations in environmental conditions. Understanding the key environmental factors determining life history strategies...
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The dual nature of water hyacinth (Pontederia crassipes): Environmental threats and sustainable solutions
July 2025
The invasive aquatic plant Pontederia crassipes (water hyacinth) presents significant ecological and economic challenges worldwide due to its rapid proliferation and dominance in freshwater ecosystems....
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Effects of water stratification on bacterial communities in scallop farming waters of the North Yellow Sea in China
July 2025
Water stratification is a prominent oceanographic phenomenon in the North Yellow Sea, a vital region for mollusk aquaculture in northern China. Understanding the influences of water stratification on...
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Prey adopt similar adaptive strategies with different molecular response mechanisms: How do ciliates respond to different predation risk cues?
July 2025
The adaptive strategies of prey against predation risk have been pivotal in non-consumptive effects. However, the adaptive strategies of prey and the response mechanisms to various predation risk cues...
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Comparative study and morphological plasticity of an Italian and a Chinese population of the protist ciliate Pseudokeronopsis erythrina (Hypotrichia, Kentrurostylida) with a mitochondrial genome analysis
July 2025
Two populations of the kentrurostylid ciliate Pseudokeronopsis erythrina Chen et al., 2011 were isolated from a brackish wastewater treatment plant, Pisa, Italy and from a nutrient-rich freshwater body,...
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A temperature-induced sex reversal mechanism in ricefield eels
July 2025
The ricefield eel (Monopterus albus), a protogynous hermaphrodite, is an important aquaculture freshwater fish in China. Intensive studies have focused on the sex reversal of this species, but the underlying...
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Sex-biased miR-456 targeting spire1/sox11 provides insights into the ceRNA-network of sexual regulation in fish
July 2025
Competing endogenous RNAs (ceRNAs) are a novel epigenetic regulatory mechanism implicated in sex determination and differentiation in teleosts, which exhibit a diversity of sex-determining mechanisms....
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Underwater noise in the Xinluo reserve: A potential stressor for the critically endangered Yangtze finless porpoise
July 2025
Nature reserves in the Yangtze River, China, are crucial for protecting the Yangtze finless porpoise (Neophocaena asiaeorientalis asiaeorientalis) and their habitats. Despite a 10-year fishing ban along...
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The curious case of Hypotrichidium bichromum n. sp., a new polymorphic and cannibalistic spirofilid ciliate (Ciliophora, Hypotrichia)
July 2025
Members of the genus Hypotrichidium are adapted to a planktonic lifestyle and are characterized among hypotrichs by their unique pyriform body with pointed tail and spiral cirral rows around the whole...
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City bug, country bug: How do benthic macroinvertebrate assemblages respond to an urbanization gradient taxonomically and functionally?
July 2025
Lotic ecosystems are especially vulnerable to the adverse effects of urbanization because of their close connectivity with the surrounding terrestrial ecosystems. There is, however, a knowledge gap...
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Combined intestinal transcriptome and microbiome profiling highlights microbiota involved in growth and immunity of the Reeves’ turtle (Mauremys reevesii)
July 2025
The intestine serves as the primary digestive and essential mucosal immune organ, harboring diverse microbiota that play crucial roles in digestion, absorption, and host immunity. However, the association...
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The effects of nutrient level on periphyton–macrophyte interactions in freshwater ecosystems
Available online 11 July 2025
Periphyton are one of the key primary producers in aquatic ecosystems, particularly in oligotrophic shallow lakes. Submerged macrophytes are capable of competing with periphyton for nutrients and light,...
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Nutrient-driven shifts in zooplankton structural-functional dynamics across different types of freshwater systems
Available online 10 July 2025
Nutrient enrichment, predominantly due to human activities, significantly compromises the ecological integrity of aquatic ecosystems, particularly in freshwater systems. As an essential component of...
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The DEAD-box RNA helicase CrhB exhibits pleiotropic functions in the cyanobacterium Anabaena PCC 7120
Available online 10 July 2025
DEAD-box RNA helicases play critical roles in regulating RNA metabolism and gene expression in both prokaryotes and eukaryotes. In the filamentous, heterocyst-forming cyanobacterium Anabaena PCC 7120,...
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The effects of Picria fel-terrae Lour. on ameliorating hepatic metaflammation while modulating mucosal immunity in fish
Available online 10 July 2025
This study examined the effects of Picria fel-terrae Lour. (PFL) on soybean meal-induced enteritis in zebrafish (Danio rerio) and evaluated whether its increased resistance to Aeromonas hydrophila using...
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The silent spread of the rosette agent Sphaerothecum destruens: first report in Italy and new freshwater fish hosts
Available online 3 July 2025
Sphaerothecum destruens, an emerging aquatic pathogen, presents significant threats to biodiversity conservation and aquaculture sustainability due to its broad host range and close association with...
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Ferritin-based self-assembling nanovaccines induces durable and effective immune responses against LMBV in largemouth bass (Micropterus salmoides)
Available online 3 July 2025
Largemouth bass ranavirus (LMBV) is a double-stranded DNA virus that poses a serious threat to the bass farming industry. Given the significant economic losses caused by LMBV outbreaks, the development...
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Deciphering phage-host dynamics: cyanophage A-4(L) infection of Nostoc sp. PCC 7120 in freshwater ecosystems
Available online 3 July 2025
Cyanobacteria, as essential photosynthetic microorganisms, play a pivotal role in aquatic ecosystems by contributing to primary production and nitrogen fixation. However, they can also lead to harmful...
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The cross-talk of lysine succinylation and acetylation at the K14 site of the Fur protein in regulating antibiotic resistance in Aeromonas hydrophila
Available online 1 July 2025
The pathogenic bacterium Aeromonas hydrophila presents significant threats in aquaculture due to its increasing antibiotic resistance. Prior studies identified lysine acetylation (Kac) and succinylation...
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Deficiency of SSTR2a promotes body growth by activating the GH/IGF axis in Nile tilapia Oreochromis niloticus
Available online 30 June 2025
Somatostatin (SST), named for its ability to inhibit pituitary growth hormone (GH) secretion, is involved in multiple physiological processes though somatostatin receptors (SSTRs). Both in vitro and...
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Establishment of inter-order transplantation of primordial germ cells for the protogynous hermaphroditic rice field eel, Monopterus albus
Available online 26 June 2025
The rice field eel, Monopterus albus, is an economically valuable aquaculture fish. However, the shortage of rice field eel fry, which mainly rely on fishing in the wild, is the main bottleneck in the...
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