Mathematical model illuminates how environment impacts life choices of salmon
Peer-Reviewed Publication
Updates every hour. Last Updated: 20-Apr-2025 01:08 ET (20-Apr-2025 05:08 GMT/UTC)
Tokyo, Japan – Researchers from Tokyo Metropolitan University have created a mathematical model that models how the evolutionary strategies of organisms are affected by the environment. They studied salmonid fishes which choose either to migrate to the sea then return to lay eggs or stay in the river depending on their individual features. Their model correctly predicts how the proportion choosing to migrate changes with environmental conditions, predicting how environmental change can trigger eco-evolutionary responses.
The interactions between global climate change and ocean oscillations – fluctuating cycles in wind and ocean temperatures – are impacting weather patterns in the Greater Mara-Serengeti ecosystem in Kenya and Tanzania, according to a new study led by Joseph Ogutu of the University of Hohenheim, Isaiah Obara of Freie Universität Berlin, and Holly Dublin of Wasaa Conservation Centre, published October 2 in the open-access journal PLOS Climate.
Marine animals like jellyfish, corals and sea anemones often live with algae inside their cells in a symbiotic relationship. The animals give the algae nutrients and a place to live; in return, algae give the animals some of the food they make from sunlight via photosynthesis. While this food production seems great for the jellyfish, the algae can also change its host animal’s immunity, similar to the changes made by human pathogens, like parasites that cause malaria. This side effect of the partnership weakens the jellyfish’s immune system, making them worse at fighting off infections, according to a new study from researchers at The University of Texas at Arlington.
In the face of increased human pressures and climate change, a team of Australian scientists led by Dr Georgina Wood at Flinders University have launched a new online tool to assist marine managers and restoration experts to bolster the resilience of marine habitat-forming species.
The ‘Reef Adapt’ initiative aims to expand the tools available to promote diverse, adaptable and resilient ecosystems.
A new article published in PNAS reveals the unprecedented ability for reverse development in a ctenophore, also called comb jelly. The findings suggest that life cycle plasticity in animals might be more common than previously thought.
https://doi.org/10.1007/s44312-023-00001-2
Announcing a new publication for Marine Development journal. In this research article the authors Shiyu Deng and Zhifu Mi from Bartlett School of Sustainable Construction, University College London, London, United Kingdom review carbon emissions from global shipping.
FAU’s Southeast National Marine Renewable Energy Center (SNMREC) has received an $800,000 grant from the U.S. Department of Energy to advance ocean energy technologies. Collaborating with various experts and organizations, SNMREC will conduct a pioneering feasibility study for an ocean current test facility off Palm Beach County, marking a first in leveraging top marine energy expertise. The project’s end goal is to improve the nation’s competitiveness in marine energy technology, encourage domestic manufacturing, and create jobs while helping to achieve the nation’s energy goals.