News by Subject Biology

European eels spawn in the subtropical Sargasso Sea but spend most of their adult life in a range of fresh- and brackish waters, across Europe and Northern Africa. Using whole-genome analysis, a team of scientists led from Uppsala University provides conclusive evidence that all European eels belong to a single panmictic population irrespective of where they spend their adult life, an extraordinary finding for a species living under such variable environmental conditions. The study is published in the PNAS.

Scientists have discovered how bacteria commonly responsible for seafood-related stomach upsets can go dormant and then "wake up".

Warming ocean waters could reduce the ability of fish, especially large ones, to extract the oxygen they need from their environment. Animals require oxygen to generate energy for movement, growth and reproduction. In a recent paper in the Proceedings of the National Academy of Science, an international team of researchers from McGill, Montana and Radboud universities describe their newly developed model to determine how water temperature, oxygen availability, body size and activity affect metabolic demand for oxygen in fish.

Close to 5,700 lakes in the Northern Hemisphere may permanently lose ice cover this century, 179 of them in the next decade, at current greenhouse gas emissions, despite a possible polar vortex this year, researchers at York University have found. Those lakes include large bays in some of the deepest of the Great Lakes, such as Lake Superior and Lake Michigan, which could permanently become ice free by 2055.

Announcing a new publication for Marine Life Science & Technology journal. In this research article the authors Hungchia Huang, Jinpeng Yang, Shixiang Huang, Bowei Gu, Ying Wang, Lei Wang and Nianzhi Jiao from Xiamen University, Xiamen, China and Sun Yat-Sen University, Guangzhou, China consider the spatial distribution of planktonic ciliates in the western Pacific Ocea: along a transect from Shenzhen (China) to Pohnpei (Micronesia).