Cycle of coral bleaching on the Great Barrier Reef now at ‘catastrophic’ levels
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Updates every hour. Last Updated: 29-Apr-2025 10:10 ET (29-Apr-2025 14:10 GMT/UTC)
Ecologists from the School of Biological Sciences (SBS) and the Swire Institute of Marine Science (SWIMS) at The University of Hong Kong (HKU) have identified significant ecological risks associated with the release of hybrid groupers into Hong Kong’s coastal waters, a practice often linked to religious ‘mercy release’ rituals.
Their study highlights how the Tiger Grouper-Giant Grouper hybrid (TGGG), also known as the Sabah grouper, disrupts local marine ecosystems by exploiting unique ecological niches and potentially becoming a dominant predator. This research, the first to use advanced DNA metabarcoding to analyse the diet of this hybrid species, underscores the urgent need for public education and conservation measures to mitigate unintended ecological impacts. The findings have been published in the journal Reviews in Fish Biology and Fisheries.
The materials used to protect wind turbines from corrosion leach into the surrounding water, which could pose risks to ecosystems, seafood safety and human health, new research from the University of Portsmouth has found.
A new study led by Woods Hole Oceanographic Institution (WHOI), published in The ISME Journal, sheds light on how a species of foraminifera, single-celled organisms found in almost all marine habitats, thrives in a dark, oxygen-free environment.
Northern pike are moving through salt water to invade freshwater habitats in Southcentral Alaska, according to a new study. It’s the first known documentation that northern pike are traveling through estuaries, where fresh water from rivers mixes with the ocean, to colonize new territory in North America.
Methane from the destroyed Nord Stream pipelines spread over a large part of the southern Baltic Sea and remained for several months. This is according to a new study by researchers from the University of Gothenburg and the Voice of the Ocean research foundation.