EMERITA ANALOGA PDF

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I am most frequently found on tidal sandy stretches of warm and sunny summertime beaches. I am quick to burrow to evade birds Sandpipers, scooters and plovers and fish surfperch, corbina and small sharks that key in on me as a food source. Humans with a quick hand have a shot at capturing me for amature science observation. A common sight on the beaches of San Diego County are inquisitive children armed with nothing more than plastic buckets and a sense of curiosity hunting me in the backwash of retreating waves.

As my name suggests, Sand Crabs, prefer open sandy areas where we are free to move with the ebb and flow of tides. Those trying to capture me are able to identify my location by looking for subtle clues along the beach. As the receding wave moves back to the ocean my antene make a distinctive V shape in the outflowing water.

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. Sand Crabs are known as an indicator species that can highlight poor environmental health in coastal ecosystems.

Algal blooms, which will be covered in a future Get to Know Your Neighbor Segment , are linked with the runoff of fertilizers used by humans. In essence, Sand Crab abundance helps scientists to understand ecosystem health at larger scales.

Sand Crabs also provide a valuable food source to predators which rely on them to convert plankton and detritus into usable energy for organisms higher in the food chain. Contact cory wildcoast. Join us to listen in on their conversation and feel free to interject when the discussion starts to go over your head. The panel with then work together to find a more accessible way to explain the subject matter. Photo by Ingrid Taylar. This Pacific Mole Crab sand crab is female based on the bright orange egg sac pictured here.

Photo by Jon Sullivan. Why should humans care about me?

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Week # 5: Pacific Sand Crab, Emerita analoga

I am most frequently found on tidal sandy stretches of warm and sunny summertime beaches. I am quick to burrow to evade birds Sandpipers, scooters and plovers and fish surfperch, corbina and small sharks that key in on me as a food source. Humans with a quick hand have a shot at capturing me for amature science observation. A common sight on the beaches of San Diego County are inquisitive children armed with nothing more than plastic buckets and a sense of curiosity hunting me in the backwash of retreating waves. As my name suggests, Sand Crabs, prefer open sandy areas where we are free to move with the ebb and flow of tides. Those trying to capture me are able to identify my location by looking for subtle clues along the beach. As the receding wave moves back to the ocean my antene make a distinctive V shape in the outflowing water.

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Emerita analoga

Its body is approximately egg-shaped. The carapace has three teeth in front and is smooth except for small, transverse ridges on the anterior portion. The first 4 pereopods are flattened, not chelate , and used for digging. The fifth pereopod is slender and chelate , and is used for cleaning the gills rather than for digging.

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