Mile 311 Dispatch

July 17, 2022
by sultanym

Location:
Clatsop
Jockey Cap, Silver Pt, S Cannon Beach, Tolovana Beach
Conditions:
Sunday 9:15 AM
Sunny
65° F
Tide Level:
-0.9 ft
Humans / Pets:
Activities:
Concerns:
Disturbances:
Vehicles:
Activity Comments:
Dogs off-leash at Silver Point tidepools
Notable Wildlife:
Dead Birds:
Stranded:
Fish & Invertebrates:
Driftline:
New Development:
Modifications:
Natural Changes:
Comments:
Summary:

Today, we observed a whopping total of 1,059 Ochre sea stars (Pisaster ochraceus) at the northern rocky outcroppings exposed by the low tides at Silver Point. We had 8 team members participate for 1.63 hours for a total survey effort of 13 hours. These efforts involved visually inspecting the stars for signs of sea star wasting syndrome (SSWS) as part of our observational study. A total of 1,001 stars were healthy (94.5%), 40 had one white lesion on the ray or central disk (mild SSWS; 3.8%), while 18 individuals had more than one lesion, arm curling, body disintegration, or organs emerging from body cavity (severe SSWS; 1.7%). We sent images to MARINe who confirmed our correct designations of mild vs. severe disease category symptoms. Size class measurements ranged from the minute 10mm to a dinner plate sized 240mm, measured from the center of the central disk to the longest ray. No stars were touched in this observation (visual inspection only). Of the 1,001 healthy individuals counted, 837 ndividuals measured between 50-140mm in terms of size class designations, which is 83.4% of all healthy Pisaster measured. Many juvenile stars were observed, especially in the crevices of California mussels along the rock wall of Silver Point rock. Additional tide pool invertebrates seen included a stiff-footed sea cucumber, tar-spot sea cucumber, Hind’s chiton, Lined chiton, Hairy chiton (upon visual inspection, it looked like someone pried this chiton off the rocks), Frilled commensal scaleworm on an ochre sea star, Rockweed isopod, Pacific rock crab, California mussels (thousands!), and an interesting coralline algae in the genus Bossiella.

  • Tidepool diversity
    Silver Point rocky outcroppings
    July 17, 2022
  • Juvenile ochre sea star
    Silver Point rocky outcroppings
    July 17, 2022
  • Ochre sea star high relative abundance
    Silver Point rocky outcroppings
    July 17, 2022
  • Sea star wasting syndrome early sign: arm curling
    Silver Point rocky outcroppings
    July 17, 2022
  • Sea star wasting syndrome: white lesion on central disk, lethargy, and limp arm
    Silver Point rocky outcroppings
    July 17, 2022
  • Sea star wasting syndrome: white lesion on distal section of central disk
    Silver Point rocky outcroppings
    July 17, 2022
  • Large sized ochre sea star with one distal white lesion on ray
    Silver Point Rocky outcroppings
    July 17, 2022
  • Rockweed isopod
    Silver Point Rocky outcroppings
    July 17, 2022
  • Hind's chiton
    Silver Point Rocky outcroppings
    July 17, 2022
  • Amazing relative abundance of ochre sea stars
    Silver Point Rocky outcroppings
    July 17, 2022
  • Tar-spot sea cucumber
    Silver Point Rocky outcroppings
    July 17, 2022
  • Frilled commensal scaleworm on ochre sea star (zoomed-in with 15x macro lens)
    Silver Point Rocky outcroppings
    July 17, 2022
  • Hairy chiton-putatively removed from rock by public!
    July 17, 2022
Other Mile 311 Reports (22)

2022

June 18, 2022 - sultanym
Today, we observed 464 Ochre sea stars (Pisaster ochraceus) at the northern rocky outcroppings exposed by the low tides at Silver Point. We had 8 team members participate for 1.5 hours for a total...
June 4, 2022 - sultanym
A morning walk on mile 311 from Tolovanna Wayside to Silver Point/Jockey Cap revealed a high relative abundance of ochre sea stars (Pisaster ochraceus) in rocky tidepools during the outgoing tide....
March 28, 2022 - sultanym
 At 9:16am, on 3/28/2022, I was birdwatching at Silver Point, Clatsop County when I was excited to observe a light-colored, white faced, large bodied sea otter swimming north around the left most sea...

2021

September 7, 2021 - browneyed
Specifically came out for the new moon low-tide action, and Silver Point delivered. The cave/tunnel was almost fully exposed. Armored Chitons, hidden Dungeness crabs, and a pretty health Sea Star...
  • Possible Chinook, definitely dead.
  • Kelp!
  • Purple Sea Star
  • Armored Chiton
  • Find the Dungeness crabs waiting out the tide.
  • Sea Stars and Anemones living in harmony
  • Goose-Neck barnacles in the nude.
  • Dancing with the Sea Stars
  • Silver Point at low tide
May 22, 2021 - browneyed
Definitely a beach to visit for low tide! We walked up and down our mile and fell in love. So many cool tide pools, tons of awesome rocks, great collection of driftwood.*Bonus scavenger hunt item:...
  • Cellophane worm casings
  • Dungeness crab and ochre sea star
  • Striations
  • Metal
  • Blue mussels with barnacles and marine snail
  • Anemone and sea stars
  • Anemone and sea stars
  • Silver Point cave
  • Ochre sea star
  • Cellophane worm casings
February 9, 2021 - jessejones
Beautiful low tide left a very wide and clean beach on a bright and cold afternoon. Not a lot of wildlife observed unfortunately. I saw one sea star with obvious wasting disease and will report it to...

2018

November 1, 2018 - Ostj
The beach was quiet. A low tide showing very smooth sand. 
July 18, 2018 - Ostj
I walked at low tide and this was a very low tide. The beach was quite large. Not much activity except for close to Tolovana and the tidepools. I took many photos to upload. There were two artlike...

2015

July 19, 2015 - historylover1
Beach lightly used even on a busy day on other adjacent beach. There was almost no garbage, almost no dead animals or seaweed. Overall a healthy beach.
May 10, 2015 - historylover1
The beach had a light amount of debris and a large number of dead Purple Sails or velella velella on the beach. Healthy, lightly used beach!
January 25, 2015 - historylover1
Healthy and clean beach. Almost no man-made trash. No inappropriate use.

2013

November 11, 2013 - historylover1
Healthy and clean beach.
March 28, 2013 - historylover1
The beach was relatively clean with no problems.

2012

July 31, 2012 - historylover1
This beach is healthy and was almost completely trash-free. There are no present concerns about this lightly-used mile of the Oregon coast.
June 27, 2012 - historylover1
Beach looks relatively clear of litter and healthy at this time.
March 24, 2012 - historylover1
Quiet and generally clean. Main concern is an exposed tank that appears to be dripping oil in the dunes adjacent to the beach. From an old homesite.

2009

June 18, 2009 - Anemone
There were around 55 people on mile 311. Seventeen of them were cycling. People had come to Tolovana Park Beach in unusually high numbers because of the warm weather, but the beach between Tolovana...

2008

October 28, 2008 - tolovana 1

2007

December 20, 2007 - TomandGretel
It was nice to have the beach practically to ourselves. The one dog we encountered was under perfect voice control.There was much less debris than we expected after the Big Storm.We will keep an eye...
September 19, 2007 - TomandGretel
all in all a pleasant day. Lots of sand washed up and built up all over. Very clean beach, as this was just several days after the SOLV cleanup. Wish it remained that way. Evidence of beachfires in...
  • natural vegetation has been mowed down, some of it has been 'shaped', and a hedge planted.
  • last year's attempt on placing rip rap looking even worse this year
July 5, 2007 - TomandGretel
actually, quite an improvement over previous 'day after the 4th.' the fireworks ban seems to be working, and the violations are more sporadic every year. Still lots of fireworks debris.
March 8, 2007 - TomandGretel
Will need to take a photo of a riprap structure gone bad. Ocean washed out sand placed between riprap, and some kind of netting to hold plants.Very ugly to look at. Will get address and photos.