Showing posts tagged as "USGS"
The High Cost of a Mother’s Love
How much energy does it take a mother sea otter to care for her pup? Quite a lot, it turns out. So much, that the effort of being a mom can put her own life at risk.
That’s the conclusion of a long-term research study just published by scientists from the University of California, Santa Cruz; and the Aquarium. It’s based on extensive observations of tagged sea otters in the wild, and others we rescued and raised through our Sea Otter Research and Conservation program.
It’s another vital piece of information about the lives of sea otters—data that’s critical to the recovery of California’s threatened sea otter population.
California sea otter numbers are up, according to the latest population survey conducted by researchers, including those from the Aquarium. The reasons: more pups — and the addition of San Nicolas Island otters to the count. Since the 1980s, scientists have calculated populations for the southern sea otter, a threatened species in California. For 2013, USGS lists the population as 2,941. To be considered for removal from threatened status, it would need to exceed 3,090 for three consecutive years.There’s more to be done!