A warming ocean threatens mangrove restoration targets and deepens global inequities in ecosystem service losses

Global efforts to restore mangrove coverage face a growing but underexplored threat from a warming ocean, jeopardizing the future benefits mangroves provide. Using high-resolution global data across 1-degree grid cells, we assess how climatic and socioeconomic factors influence mangrove dynamics. We find that mangroves are depleted in lower-income regions, but eventually restored as income rises. Similarly, mangroves in cooler areas may benefit from warming temperatures up to a threshold beyond which damage occurs.

https://phys.org/news/2025-09-ocean-carbon-ailing-absorption-marine.html

Measurements analyzed by an international research team led by ETH Zurich show that the global ocean absorbed significantly less COβ‚‚ than anticipated during the unprecedented marine heat wave in 2023.  The world's oceans act as an important sink for carbon dioxide (COβ‚‚). To date, they have absorbed around a quarter of human-induced COβ‚‚ emissions from the atmosphere, thereby stabilizing the global climate system.

Documenting biodiversity outcomes in marine fisheries management

This guidance suggests actionable ways fisheries managers can utilize the types of survey and monitoring data generally being collected in priority areas (i.e. areas with distinctive biodiversity attributes or features) to measure biodiversity outcomes and meet requirements of other effective area-based conservation measures (OECMs) Criterion C. While there is no standard for documenting outcomes of areas reported to the Convention on Biological Diversity or World Database on Protected Areas, FAO recommends documenting all reported OECMs with enough information as possible.

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Climate change is rapidly transforming ocean conditions. Rising temperatures and shifting currents are disrupting ecosystems and causing marine species to move in new and often unpredictable ways. Coastal communities are affected by changes to coastlines, weather patterns, and access to marine resources, among other impacts. Marine protected areas (MPAs) are already experiencing the effects of climate change and managers must prepare for ongoing and future changes.

Seed-dispersing animals are in decline, impacting forests and the climate: Study

A lot of attention has been paid to the decrease in bee populations and other pollinators, but a recent review article makes the case that we should be equally alarmed by the declining numbers of seed-dispersing animals, which are crucial for growing healthy forests.

β€œBoth are important and should be taken into account in restoration and conservation projects,” study co-author Mauro Galetti, director of SΓ£o Paulo State University’s Center for Research on Biodiversity Dynamics and Climate Change, said in a press release.

A database of life history parameters for Pacific coral reef fish

Length-weight parameters assist in the estimation of a fish’s biomass based upon assessment of length, providing value to many scientific and management applications. Some fish species have many sets of parameters published, while those less commonly studied may have no available information, making it challenging to decide which values to use. To address this, we present a database of quality-controlled length-weight parameters for 1,308 Pacific coral reef fish species from 87 families.

Less diversity, higher risk of infection: Disturbed habitats can promote the spread of tropical disease

When night falls in Panama's forests, the time of the opossums begins. The marsupials, which have spent the day sleeping in trees, climb down the trunks and search for fruit, frogs or eggs on the ground. The omnivores often carry a hazardous parasiteβ€”the Chagas disease pathogen.
A new study by Ulm University published in the journal One Health has now shown that the more humans intervene in nature, the more host animals are infected with Trypanosoma cruzi, and the more the tropical disease spreads.

Conservation Imperatives: securing the last unprotected terrestrial sites harboring irreplaceable biodiversity

Ambitious biodiversity goals to protect 30% or more of the Earth’s surface by 2030 (30x30) require strategic near-term targets. To define areas that must be protected to prevent the most likely and imminent extinctions, we propose Conservation Imperativesβ€”16,825 unprotected sites spanning ~164 Mha of the terrestrial realm that harbor rare and threatened species. We estimate that protecting the Conservation Imperatives would cost approximately US$169 billion (90% probability: US$146β€”US$228 billion).