As climate change intensifies harmful algal blooms worldwide, an international team led by Hiroshima University has developed a hybrid modeling approach that combines algal movement simulations, AI, and long-term monitoring data to sharpen forecasts of these bloom events—linked to environmental damage, mass fish die-offs, economic losses, and risks to human health.

This article highlights a "protection-pollution paradox" in no-take marine reserves (NTRs), where conservation-driven gains in fish biomass, body size, and trophic structure inadvertently increase the accumulation of legacy PCBs in apex predators. Climate change exacerbates this "toxic trap" by remobilizing sediment-bound contaminants and altering the toxicokinetics of marine organisms. To address this hidden threat, the authors advocate for an integrated management framework that combines climate-smart spatial planning, advanced biomonitoring, and targeted remediation. They emphasize shifting conservation metrics from simple biomass recovery to comprehensive ecosystem health to prevent NTRs from becoming inadvertent "toxic traps."

Each winter, thousands of blacktip sharks crowd South Florida’s clear, shallow shoreline—just as beach nourishment projects churn the water into murky plumes. In one of the most detailed studies to date, FAU researchers used aerial surveys and underwater cameras to track sediment clouds and shark activity. They found sharks cluster close to shore, where turbidity can stretch for miles, clouding visibility, disrupting feeding, and potentially shifting behavior—raising new concerns for marine ecosystems and human safety.

A recent study investigates the intermuscular bones (IBs) of a novel hybrid fish (BTB), derived from female Megalobrama amblycephala (BSB) and male Culter alburnus (TC), and its parents. The research reveals that BTB exhibits a reduced number of IBs per sarcomere compared to its parents, showcasing the potential of distant hybridization in developing fish varieties with fewer IBs, which is advantageous for both consumer preference and industrial processing.