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The Waves Zone And The Mid Tide Zone

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As the Cellana denticulata is distributed in the upper lower intertidal zone and the mid tide zone it must be able to withstand the upper lower intertidal zone and the mid tide zone as the rocky shore experiences tidal fluctuations (abiotic factor) that occurs in a regular pattern in which the beach has submerged areas and desiccated areas (the niche of the Cellana denticulata) this is an abiotic factor that affects their survival. Tidal fluctuations are when the tide (sea) comes in and submerges areas of the rocky shore while others are exposed. The tide ranges in vertical differences along the rocky shore; from high tide, mid tide to low tide this is called zonation. These are the tides that fluctuate in a regular pattern along the rocky shore and this is mainly due to the gravitation pull of the moon. However the sun also affects the tides but has less gravitational force as the sun is further away from earth. The gravitational pull of the moon is the main cause for tidal fluctuations as the moon has a stronger gravitational pull as it is closer to the earth than the sun, hence the main cause for tidal fluctuations as the gravitational pull from the moon exerted onto earth is greater than the earth. Because the earth is in constant motion of rotation the earth and the moon become closer in distance as the earth is not perfectly round and has uneven surfaces. These uneven surfaces or areas of the earth are closer in distance to the moon and therefore the gravitational pull

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