Southern Resident killer whales have not had enough food for several years, which could affect their already small numbers, according to a study by the University of British Columbia. FOX13
NOAA has announced two fines for recreational boaters, including one – lowered to $2,700 after the boater admitted liability – after boaters were caught on camera operating too close to endangered Southern Resident orcas.whales have not had enough food for several years, which could affect their already small numbers, according to a study by the University of British Columbia.
Researchers looked at requirements and availability of prey for Northeastern Pacific Southern Resident killer whales. The study found a fluctuating level of salmon from spawning areas on rivers had a detrimental effect on killer whale health, threatening a small and fragile group of whales, the Bellingham Herald"It really appears like they cannot take more rough years," said Fanny Couture, lead researcher for the study.
About 75 of the Southern Resident killer whales span from the California coast to Haida Gwaii in British Columbia’s Queen Charlotte Islands. They feed on Chinook salmon, but number of Chinook has decreased even as fishing regulations attempted to bolster their numbers. That leaves animals high on the food chain, like killer whales, without adequate prey.Studies have shown that a lack of food intake for killer whales has led to lower birth rates and higher death rates. The current study agreed, showing a slightly higher birth rate in years where the killer whales met their dietary needs.
Österreich Neuesten Nachrichten, Österreich Schlagzeilen
Similar News:Sie können auch ähnliche Nachrichten wie diese lesen, die wir aus anderen Nachrichtenquellen gesammelt haben.
Virus Evolved in Patient Who Had COVID 471 Days
Weiterlesen »
Viral ‘Dishwasher Safety’ Advice Hilariously Ignites Twitter DebateFrom disastrously cooking salmon to cleaning rubber chickens, Twitter users dished on their biggest dishwasher failures.
Weiterlesen »
Electra fire explodes past 3,000 acres, threatens power grid, officials sayOut-of-control Electra fire threatens hundreds of structures and prompts multiple evacuation orders in Amador and Calaveras counties.
Weiterlesen »
You're Probably Better at Science Than You Think, New 'Citizen Science' Study RevealsCommunity science – also known as citizen science – has enormous appeal for researchers looking to collect larger datasets and engage the public in their work. But are the data collected in this way any good?
Weiterlesen »
Cheney says Jan. 6 committee could make criminal referral for TrumpOn Sunday, Liz Cheney pointed out that the Justice Department doesn't need to wait on the committee to make a criminal referral.
Weiterlesen »
Liz Cheney says Jan. 6 committee could make criminal referral for TrumpCommittee members say new information is coming to light following Cassidy Hutchinson's testimony.
Weiterlesen »