Arctic krill detect tiny changes in light intensity during polar winter days, allowing them to maintain their daily biological rhythms. This adaptation enables the krill to synchronize their daily migrations with external light cues, such as twilight.
A new study published in Coral Reefs confirms that soft corals Plexaura kükenthali and Plexaura homomalla are two separate species. The research found significant differences in morphology, genetics, reproduction, and symbiotic relationships between the two species.
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The Verrucomicrobiota group of bacteria plays a crucial role in degrading polysaccharides released by algae during spring blooms in the North Sea. These specialized bacteria consume hard-to-degrade sugars, including those containing sulfate and fucose, using unique pathways and organelle-like structures to avoid toxic compounds.
Researchers found that rusty crayfish exhibit increased diet specialization and boldness in mid-abundance lakes, where individual behaviors become more diverse. This specialization can lead to impacts on spawning fish populations and ecosystem dynamics.
Researchers successfully detected local mammals and birds by collecting 18 litres of water from a two-kilometre stretch along the river Mulde. The team identified 50% of fish species, 22% of mammal species, and 7.4% of breeding bird species in the region.
A new study found that Baltimore County's leaky sewage infrastructure delivers tens of thousands of human doses of pharmaceuticals to the Chesapeake Bay annually, affecting aquatic life and behavior. The study estimates that nearly 1% of raw sewage flows into the environment via leaking pipes.
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A study by UC Santa Barbara's Marine Science Institute found that understory algae can't compensate for the lost productivity of giant kelp in kelp forests. The researchers discovered a gradual reduction in canopy productivity and an exponential increase in understory algae productivity over 10 years.
A new study from Oregon State University found that climate conditions significantly affect the reproductive success of mature female Antarctic krill. The researchers discovered a relationship between the condition of these females during spawning season and the proportion of juvenile krill in the population the following year.
Scientists at the University of Leicester discovered a correlation between tooth roughness and diet in animals. Tooth surfaces can reveal what an animal has been eating, providing a reliable method for studying wild diets.