Join Island County Beach Watchers as they explore and survey the rich intertidal zone.

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Showing posts with label Partridge Point. Show all posts
Showing posts with label Partridge Point. Show all posts

Tuesday, July 13, 2010

Partridge Point

Partridge Point team photo 2010

Team at work-Partridge Point

Burrowing sea cucumber

Tiny clingfish

Probable Mopalia sp.

Suberities sp.

Blood star

Halichondria




After the cold windy conditions encountered monitoring Rosario Beach, the Partridge Point team was relieved the next day to find that the weather was considerably improved. In fact, it was downright nice as the team of six surveyed that very diverse rocky, high energy west Whidbey beach. They found four species of encrusting sponge (breadcrumb, purple, red, and Suberites), two species of sea stars (blood star and sunflower star), and a nifty large green and gray shrimp. It was unusual that no Leptasterias (six-rayed) sea stars were seen as that species has been a common find on this beach in previous years. Large numbers of little brown barnacles (Cthamalus dalli) were observed on the high intertidal erratic at the start of the profile line and further down, team members were delighted to find numerous tiny northern clingfish (Gobiesox maeandricus) among the kelp. Two unusual finds were those of a small white burrowing sea cucumber of the genus Leptosynaptas and a brightly colored chiton thought to be one of the Mopalias.

As the tide reached its lowest point (-2.7 feet), an amazing assortment of seaweed was revealed including Osmundia spectabilis (sea laurel), Plocamium sp. (sea comb), Alaria marginata (winged kelp), Egregia menziesii (feather boa kelp), Nereocystis luetkeana (bull kelp), upright and encrusting red coralline algae, and Acrosiphonia sp. (green rope). In addition the seagrass Phyllospadix grew from low intertidal boulders.

Wednesday, July 22, 2009

Partridge Point-July 22, 2009

Chthamalus dalli

Partridge Point team photo 2009

Stalked jelly

Katharina tunicata

Epiactis sp.

Porcelain crab



Jan Holmes put together an enthusiastic team of nine to study Partridge Point on July 22nd. Betty Brosheim, from the WA Dept. of Natural Resources and who is involved in establishing a new marine reserve area that will border the west side of Whidbey Island, accompanied the team and got a good overview of what beach monitoring is all about. The late morning low tide plunged to -3.2 feet revealing the truly remarkable diversity of this beach; a diversity that was reflected at the end of the day by a species list comprised of 75 invertebrates, fish, and seaweeds.
Among the highlights were stalked jellies and 4 species of anemones ranging in size from the little brooding anemone (Epiactis sp.-diameter to 2 inches) to the much larger Christmas anemone (Urticina crassicornis-diameter to 10 inches). Flossie Pearson got a kick out of the sight of a large hermit crab toting around a shell that was much too small to accommodate its body. The team also encountered black katy chitons (Katharina tunicata), porcelain crabs (Petrolisthes sp.), and little brown barnacles (Cthamalus dalli). Bob Gentz brought his new waterproof camera and got photos of any critter that would hold still long enough for him to snap the shutter.

Wednesday, May 7, 2008

Partridge Point - 2008

Pycnapodia

Brittle star

Entodesma


Ophlitaspongia

Haliclona

Porcelain crab

Partridge Point team photo 2008



It was a small but determined group who took on Partridge Point on May 7th. Overcast skies could not dampen their enthusiasm as they identified over one hundred seaweed, seagrass, and invertebrate species. Brand new Beach Watcher Lili Yokom dove right into monitoring, her eagle eyes picking up several species that would have otherwise been missed. She reported that the highlights of the day for her were finding sea cucumbers (Cucumaria miniata) and brittle stars. Brian Giles spotted a Northwest ugly clam (Entodesma navicula) a species uncommon on Whidbey beaches. Jan Holmes and Libby Hayward focused on documenting quadrat data, sorting through a thick blanket of layer upon layer of seaweed and surfgrass (Phyllospadix sp). Exploration of the rich fauna yielded kelp crabs (Pugettia producta), pygmy rock crabs (Cancer oregonensis), porcelain crabs (Petrolisthes), red (Ophlitaspongia) and purple (Haliclona) sponge, and several small sunflower stars (Pycnapodia helianthoides).
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