Marrowstone
Point - Fort Flagler State Park
Marrowstone
Island, Jefferson Co., WA
Site
Description:
Marrowstone
Point has two distinct beach habitats. The
beach running south of the Lighthouse faces east into Admiralty Inlet.
At low tide it is a long stretch of sandy beach with eelgrass
beds and only a few small rocky areas. The beach
running
west of the Lighthouse faces north and is a rocky
beach with almost no sand. It faces the junction of Admiralty
Inlet and Port Townsend Bay and is subjected to greater wave action.
The rocks here range from large cobbles to large boulders.
Most of the rocks are covered in seaweed or kelp.
While
some of the mollusk species here are found in both habitats, there are
distinct differences between the two sides of the Point.
Google
Map
South of the Lighthouse
West of the Lighthouse
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. Some
populations fluctuate seasonally. Ours are based
on the spring/summer seasons.)
[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
Species
found south of the Lighthouse:
Species found
west of the Lighthouse:
Bivalves
Bivalves
Clinocardium
nuttallii [2]
Chlamys hastata [4]
(juveniles
washed up into the rocks)
Crassostrea
gigas [2]
Clinocardium nuttallii [4]
Entodesma
navicula [3]
Crassostrea gigas [2]
Leukoma
staminea [2]
Entodesma
navicula [3]
Macoma
nasuta [2]
Leukoma staminea [2]
Macoma
secta [2]
Mytilus
californianus [2]
Mya
arenaria [3]
Mytilus complex [1]
Mytilus
complex [1]
Nutricola lordi [4]
Nuttallia
obscurata [3]
Pododesmus
macrochisma [2]
Panopea
generosa [3]
Saxidomus gigantea [2]
Pododesmus
macrochisma [2]
Tellina modesta [4]
Saxidomus
gigantea [2]
Tellina
nuculoides [4]
Solen
sicarius [4]
Tresus capax [3]
Tellina
modesta [4]
Tresus nuttallii [3] (juveniles)
Tresus
capax [2]
Tresus
nuttallii [2]
Gastropods
Gastropods
Alia
carinata [3]
Alia
carinata [2]
Amphissa
columbiana [3]
Alvania
compacta [4]
Euspira
lewisii [3]
Amphissa columbiana [3]
Lacuna
variegata [1]
Calliostoma ligatum [2]
Littorina
scutulata [2]
Ceratostoma foliatum [4]
Lottia
digitalis [2]
Crepidula
nummaria [4]
Lottia
fenestratus
[3]
Euspira lewisii [4]
Lottia
instabilis [3]
Garnotia adunca [4]
Lottia
pelta [1]
Iselica obtusa
[4]
Lottia
scutum [2]
Lacuna
variegata [2]
Margarites
pupillus [3]
Littorina scutulata [1]
Nucella
analoga
[2]
Lottia digitalis
[2]
Nucella
lamellosa [2]
Lottia
fenestratus [3]
Nucella
ostrina [2]
Lottia pelta [1]
Trichotropis
cancellata [4]
Lottia
scutum [2]
Margarites pupillus
[2]
Nucella analoga [2]
Nucella lamellosa [2]
Nucella ostrina [2]
Ocinebrina lurida [4]
Odostomia sp. [4]
Tricolia sp. [2]
Chitons
Chitons
Katharina
tunicata [2]
Cryptochiton stelleri
[3]
Mopalia
muscosa [2]
Cyanoplax dentiens
[4]
Tonicella
lineata [2]
Katharina tunicata [2]
Lepidozona
mertensii [3]
Mopalia
ferreirai [4]
Mopalia hindsii [4]
Mopalia lignosa [4]
Mopalia muscosa [2]
Mopalia swanii [4]
Mopalia vespertina [4]
Tonicella
lineata [2]
Nudibranchs
Dendronotus frondosus [4]
Dialula sandiegensis [4]
Dirona albolineata [4]
Doris
montereyensis [4]
Hermissenda
crassicornis [4]
Onchidella bilamellata [4]
Rostanga pulchra [4]
This
page last revised: 8-16-2011