Annex B - Research Data

The intertidal zone is the area of the shore and seabed that is exposed to the air at low tide and submerged at high tide. Organisms found there are mostly small and uncomplicated, such as anemones and crabs. (Jennifer. B) On the shore, crab feed at the littoral (the shore zone between high tide and low tide points) at high tide and are usually hidden at low tide or scavenge for food. At night they move about freely at low tide, presumably because there is no predation from birds such as the herring gull. (Naylor 1958), (B, 1957).  The intertidal zone is a tough environment for the crabs to live in. They might face boiling hot temperatures in summer or freezing cold ones in winter when exposed to air during low tide (Pashley, 2011). The amount of water the crabs receive is intermittent, the wave action might also wash them away if not properly situated and the salinity of the water here is higher. (Jennifer. B)

When intertidal zone creatures are captured and put in tanks, it is difficult for them to adapt to their new surroundings and this majorly decreases their lifespan as their health dwindles. Their habits and behavioural practices may also differ from in the natural habitat. This can prove to be an obstruction during experiments and researches conducted in labs and marine life parks. On a smaller scale, when sea creatures, like crabs, are kept in captivity in restaurants, it is a necessity to kill them as they cannot survive in store. With a tide simulator, where tides are brought into the meager tanks, intertidal zone creatures will be able to survive for much longer in a healthy state as well. When their natural environment can also be replicated, with the seabed and associated biological existence, their constitution will proliferate. As such, lab test and researches conducted will be more accurate due to the fact that marine biologists will be able to examine these creatures in their natural habitat live.

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