A study of historic whaling records has revealed there were warning signs that populations of commercially harvested whales were heading for global collapse up to 40 years before the event.
Fish is a healthy diet, it supplies important omega-3 fatty acids and trace elements like iodine and selenium. However, eating fish caught in certain regions can sometimes also have its risks. In Bavaria, there have recently been reports of multiple cases of diarrhoea, vomiting and cold pain following consumption of imported deep-frozen fish. The symptoms are typical signs of ciguatera -- one of the most frequent fish poisonings worldwide caused by ciguatoxins in edible fish.
The drill holes left in fossil shells by hunters such as snails and slugs show marine predators have grown steadily bigger and more powerful over time but stuck to picking off small prey, rather than using their added heft to pursue larger quarry, new research shows.
Scientists from The University of Texas Marine Science Institute and the Scripps Institution of Oceanography have discovered a way to use the incredibly loud, distinctive sounds that fish make when they gather to spawn to protect them from overfishing.
Central Valley rice fields managed as floodplains during the winter can create surrogate wetland habitat for native fish, study shows.
Sex-changing fish exhibit differences in androgen receptor (AR) expression in muscles that are highly sensitive to androgens (male sex hormones) and essential for male courtship behavior, according to a Georgia State University study.
Researchers from the University of Washington and Smithsonian Institution have reported the first observed case of lionfish preying upon a fish species that had not yet been named. Their results, published May 25 in PLOS ONE, may indicate an uncertain future for other fish found in the largely unexplored deep-ocean coral reefs.
A new tool enables identification of high-end caviar from Beluga sturgeons by analyzing DNA from a single caviar, a development that helps ensure the fair international trade of caviar and contributes to conservation of the species in the wild.
Coastal communities are struggling with the complex social and ecological impacts of a growing global hunger for a seafood delicacy -- sea cucumbers -- according to a new study from the University of British Columbia.
Researchers from the Coral Reef Ecology Lab at the Hawai'i Institute of Marine Biology documented the third global bleaching event as it occurred from 2014 to 2016 at the Hanauma Bay Nature Preserve (HBNP) on the island of O'ahu, Hawai'i. Their findings, published in the international journal PeerJ, show that temperature is by far the most influential factor in coral bleaching at this well-managed location where corals, fish, and all other organisms are protected.