Vancouver
Aquarium Blog: Area with ‘rivers’ of body parts from sea stars
Strange behavior’ reported in sea otters
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9
October, 2013
Vancouver
Aquarium’s AquaBlog,
Oct. 4, 2013: Looking
for Answers in Kyuquot Sound
[...] Over the last month or so, we at the Vancouver Aquarium had
been receiving reports that conditions in Kyuquot Sound, on the
northwest coast of Vancouver Island, had been quite different this
summer. This resulted in concerns that the sea otters were not as
abundant as before and perhaps they were exhibiting some strange
behaviour. [...] In Kyuquot Sound, we saw a number of sea otters, a
little inquisitive of our presence, busy either grooming or diving
for and eating clams. [...] We continued to explore the next morning
and saw many sea otters that all appeared healthy. But the population
is large and we barely scratched the surface. The trip was short and
informative, but it raised more questions than answers. [...]
Vancouver
Aquarium’s AquaBlog,
Oct. 2, 2013: At the end of summer 2013, it became apparent that an
epidemic had spread through the extremely overpopulated sunflower sea
star populations in Vancouver Harbour and Howe Sound. They appear to
have simply fallen ill; thousands have died and disintegrated in
shallow water where their numbers are most dense. Diving biologists
Neil McDaniel and Doug Swanston found sunflower sea stars collapsing
around Defence Islands, up across from Porteau Cove. [...] Where the
population density had been highest in summer of 2012, on the western
shore of Hutt Island, all the sunflower sea stars are gone from that
area, with rivers of ossicles (a hard body part) filling ledges and
crevices (see video below). The entire diving community should be
engaged to monitor the spread of this wasting syndrome, which may be
limited to adjacent areas with extreme overpopulation, or it could
continue to spread into areas with more typical abundance levels.
[...] Whether this syndrome spreads up the Sunshine Coast or across
to Vancouver Island or south into Puget Sound remains to be seen.
[...]
Vancouver
Aquarium’s AquaBlog,
Sept. 12, 2013: Experts
Convene at Aquarium to Discuss Tsunami Debris
[...] Last Tuesday evening, the public had the opportunity hear
first-hand from experts regarding the state of tsunami debris in B.C.
during a public program at the Vancouver Aquarium titled Japanese
Debris: Why We See the Debris in B.C. [...] The discussion delved
into ways that debris from the 2011 tsunami in Japan has been making
its way to Canada’s western coast, the potential environmental
effects of such debris, and action that is being taken to address the
issue. [...] Thankfully, none of the debris has shown signs of
radiation [...]
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