Emerita analoga (Stimpson, ). Common name(s): Pacific sand crab, sand crab, mole crab. Synonyms: Hippa analoga, 3 cm preserved female. Scientific Name. Emerita analoga. Animal Type. Invertebrates. Diet. plankton, mostly dinoflagellates. Size. females: to 2 inches ( mm); males inches. Pacific Sand Crab (Mole Crab). Emerita analoga. Decapoda: Hippidae. Laguna Beach, Orange County, CA. 06/11/ © Peter J. Bryant. Back to Natural History.
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University of California, Irvine. Carapace length to 3. World Register of Marine Species. Emerita analoga Stimpson, Common name s: As the receding wave moves back to the ocean my antene make a distinctive V shape in the outflowing water. It can do this several times per wave.
Emerita analoga | Zooplankton Guide
From Wikipedia, the free encyclopedia. Since this is a preserved specimen the true color has faded. The legs and uropods have hairy margins to assist in digging and for use in collecting food and transferring it to emerira mouth. The female lays batches of up to 45, eggs each month and carries them about beneath her abdomen tucked under her telson.
In both views the abdomen has been artificially extended. How to Distinguish from Similar Species: Hippidaein the Americas”. Join us to listen in on their conversation and feel free to interject when the discussion starts to go over your head.
Week # 5: Pacific Sand Crab, Emerita analoga
They are often prepared via shallow frying in a pan or deep frying in batter. Emerita analoga Scientific classification Kingdom: As anwloga name suggests, Sand Crabs, prefer open sandy areas where we are free to move with the ebb and flow of tides. In essence, Sand Crab abundance helps scientists to understand ecosystem health at larger scales. Emerita analogathe Pacific sand crab or Pacific mole crabis a species of small, sand-burrowing decapod crustacean found living in the sand along the temperate western coasts of North and South America.
Bulletin of Zoological Nomenclature. Due to the Emerita being the predominant diet of the barred surfperch, surf fisherman use sand crabs as bait.
These small animals burrow in the sand in the swash zone and use their antennae for filter feeding. Because the fisheries throw back hard-shelled crabs, sand crab populations haven’t been affected by bait fishing. As each wave advances and retreats, the crab comes to the surface and extends its antennae to feed. Hippoidea Crustaceans of the eastern Pacific Ocean Crustaceans described in The antennal flagellum is long and featherlike used for filter feedingbut is folded beneath the mouth parts when not being used.
Its body is approximately egg-shaped. Males are typically smaller than females, and in some species, such as Emerita rathbunaethe minute males live attached to the legs of the female. Locations, abundances, unusual behaviors: Look carefully next time you are walking down the beach after the crash of a wave moves back to the ocean and you just might catch a glimpse of me while I am capturing food.
The sand crabs with soft shells that have just moulted are kept for bait, while the hard-shelled crabs are thrown back into the sea. It burrows backwards into the sand and faces the sea. Between Pacific Tides 5th ed. No bigger than a thumb, a sand crab spends most of its time buried in shifting sand. To stay put in the sand, a crab burrows quickly and often.
Emerita analoga – Wikipedia
Sand crabs moult periodically, so its exoskeleton may be found washed up on the beach. Photos by Dave Cowles. Although not very conspicuous, they are one ahaloga the most abundant animals on sandy beaches of Southern California. Here only one is being retracted. I found many juveniles on the beach at Kalaloch, most less than 1 cm total length.
Photo by Jon Sullivan. Its legs and uropods have hairy margins for rapid digging in the sand, for filtering food and transferring it to the mouth.