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During 2002−2015 we examined the causes of mortality in beachcast northern sea otters (Enhydra lutris kenyoni) collected from the coasts of Washington and Oregon states. A total of 333 moribund or dead sea otters were reported through opportunistic observations and 93 otter carcasses were collected for necropsy. Retrieved carcasses received a full diagnostic evaluation to determine cause of death when carcass condition permitted. Otter stranding reports were received from the entire Washington coast and northern Oregon coast, but carcasses located near areas populated by humans were most often in suitable condition for cause of death determination. Data in this release include basic demographic information on the...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Clallam County, Washington, USA,
Clatsop County, Oregon, USA,
Enhydra lutris,
Grays Harbor County, Washington, USA,
Jefferson County, Washington, USA, All tags...
Lincoln County, Oregon, USA,
Oregon, USA,
Pacific County, Washington, USA,
Sarcocystis neurona,
Tillamook County, Oregon, USA,
USGS Science Data Catalog (SDC),
Washington, USA,
leptospirosis,
morbillivirus,
mortality,
population trends,
salvage of beachcast carcasses,
sea otter, Fewer tags
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During 2015, beachcast bird survey programs (Beach Watch and BeachCOMBERS) reported higher than average deposition of common murres (Uria aalge) on central and northern California beaches from August through December. Increased common murre mortality was not reported for southern California beaches. International Bird Rescue (IBR) located in Fairfield, CA and other coastal wildlife rehabilitation centers received more than 1,000 live, stranded and debilitated murres from Sonoma County to San Luis Obispo County during August – October. Approximately 2/3 of birds admitted to IBR were after-hatch-year birds in emaciated body condition and in various stages of molt, with extremely worn plumage. To determine the probable...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: California,
Pseudo-nitzschia,
USGS Science Data Catalog (SDC),
common murre,
domoic acid, All tags...
molt,
mortality,
starvation,
warm water anomaly, Fewer tags
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