Rosario Beach, Deception Pass State Park 

Skagit Co., WA

Site Description:       

Rosario Beach in Deception Pass State Park is on the north side of Deception Pass.  It is the north side of the point of land at the northwest edge of Bowman Bay and is adjacent to the Rosario Beach Marine Laboratory.  This is a rocky head of land full of tide pools.  It is mostly a protected reserve where collecting isn't allowed but it is a popular site to explore.
 

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Species List:

     Following is a list of mollusk species observed at this location by members and associates of the club.  This is by no means a complete list of the species which may occur at this site.  Revisions and additions to the data are made as we acquire new information.   When a site contains more than one very distinctive type of habitat or if multiple sites were included in a single location, then a species list for each is included.
    We indicate frequency of occurrence based on our observations.  This is an indicator of how likely it is that you may be able to find this species yourself and is not a formal population survey.  

     Frequency Code:  (Based on the assumption that you are looking in the appropriate location where the species likes to live - on rocks, in sand, etc.)
     [4] - Rare - very difficult to find, maybe only a couple found after repeated visits to the site
     [3] - Uncommon - difficult to find, may not see on every trip but dedicated searching may turn up a few
     [2] - Common - easy to find, should locate a number of them on any given day
     [1] - Abundant - very easy to find, large numbers should be seen on every trip

     Bivalves
Chlamys hastata  [4]  (juveniles)
Chlamys rubida  [4]  (juveniles)
Clinocardium nuttallii  [2]
Crassostrea gigas  [2]
Leukoma staminea  [2]
Macoma inquinata  [3]
Modiolus rectus  [4]
Mytilus complex  [1]
Pododesmus machrochisma  [2]
  
     Gastropods
Acmaea mitra [4]
Amphissa columbiana  [2]
Calliostoma ligatum  [2]
Ceratostoma foliatum  [3]
Diodora aspera  [3]
Lirabuccinum dirum  [2]
Littorina scutulata  [1]
Lottia digitalis  [2]
Lottia pelta  [1]
Lottia scutum  [2]
Margarites pupillus  [3]
Nucella lamellosa  [1]
Nucella lima  [2]  (May be N. canaliculata.)
Nucella ostrina  [1]
Stylidium eschrichtii  [2]

     Chitons
Cryptochiton stelleri  [3]
Katharina tunicata  [2]
 
         
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This page last revised: 12-15-2009