SEA STAR WASTING DISEASE SURVEY
LEO SHAW 2011-2016
CONSTELLATION
MARINE RESERVE – ENTIRE PARK
2011 August -2’
tide: 609 Pisaster ochraceus prior to SSWD
2012 Dec -2’
tide 498 Pisaster
ochraceus prior to SSWD
2013 Dec 5 -2’
tide: 398 Pisaster ochraceus 1 with SSWD
8 Mottled Stars and 12 small Sunflower Stars all healthy.
2014 March 23 0’
tide: 104 Pisaster ochraceus 3 with SSWD
2014 April 3 0’ tide:
107 Pisaster ochraceus 2 with SSWD
2014 June -2’ tide: 218
Pisaster ochraceus Est
30-40% with SSWD
2014 Nov 7
-2’ tide: 28 Pisaster
ochraceus 16 with SSWD
2015 April
-1.7’ tide: 46 Pisaster ochraceus 5 with SSWD
2015 June 3 -2’ tide: 78 Pisaster ochraceus 19 with SSWD
SOUTH ALKI
SOUTH SIDE OF BREAKWATER SOUTH OF CONSTELLATION MARINE RESERVE ENTIRE BREAKWATER EXPOSED
2014 Nov 7 6 Pisaster ochraceus 1 with SSWD
2015 May 5 38 Pisaster ochraceus 0 with SSWD
2015 May 17 93 Pisaster ochraceus 1 with SSWD
2015 June 2 95 Pisaster
ochraceus 0 with SSWD
2015 August 28 32 Pisaster ochraceus 11 with SSWD
2015 October 27 21 Pisaster ochraceus 0 with SSWD
2015 Nov. 24 12 Pisaster
ochraceus 0 with SSWD
2016 Jan. 10 13 Pisaster
ochraceus 2 with SSWD
2016 April 9 27 Pisaster ochraceus 2 with SSWD
2016 May 6 26 Pisaster ochraceus 0 with SSWD
2016 May 22 34 Pisaster ochraceus 0 with SSWD
UNDER CONDOS
SOUTH OF CONSTELLATION MARINE RESERVE ON PILINGS
2014 Nov 7 22 Pisaster
ochraceus 10 with SSWD
2016 Feb 8 12 Pisaster
ochraceus 1 with SSWD 1 Sunflower Star healthy. Tide was -1.5’ so not all of pilings were
exposed or viewable.
NOTE: Sea stars observed at Constellation, and the
Breakwater were often only partially visible due to location on rocks and
partial coverage by other sea stars.
A healthy
star was one that no sign of SSWD could be seen on the exposed part of the sea
star.
15 large (appearently healthy) Purple stars were seen attached to the Seacrest West Seattle Water Taxi floating dock on 2-15-16. These stars are always submerged and avoid direct sunlight and drying faced by stars exposed on a low tide on the beach. This makes these stars vertually subtidal rather than intertidal individuals. This is a refuge from heat, direct sunlight and high temperatures that intertial stars face especially during summer low tides midday. The large size indicates that these individuals on the float likely are survivers that escaped SSWD due to habitat conditions.
15 large (appearently healthy) Purple stars were seen attached to the Seacrest West Seattle Water Taxi floating dock on 2-15-16. These stars are always submerged and avoid direct sunlight and drying faced by stars exposed on a low tide on the beach. This makes these stars vertually subtidal rather than intertidal individuals. This is a refuge from heat, direct sunlight and high temperatures that intertial stars face especially during summer low tides midday. The large size indicates that these individuals on the float likely are survivers that escaped SSWD due to habitat conditions.
Thanks for compiling this, Buzz! I was going to do an informal update on SSWD on my fb blog. May I reference this data?
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ReplyDeleteAbsolutely. You can find my (very new) fb page by searching for "Corvid and Cockle".
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