The Movement And Distribution Of Marine Organisms Essay

1772 Words Nov 28th, 2016 8 Pages
The movement and distribution of marine organisms has always been a main focal point of marine studies. With organisms such as Ctenophora, what role does temperature and rainfall play in their movements? To get a better understanding of how population densities change with weather, samples were taken during different periods of precipitation and temperature; rain the day before, clear the day before, warm temperatures, and cool temperatures. In the end, there were minor differences between the densities of Ctenophora per 3.5 liters, but not significant enough to make a conclusion of temperature and rainfall directly affecting the distribution of Ctenophora. If currents change because of an increase or decrease in rainfall or temperature, then knowing if zooplankton can move to more favorable environments or resist movements by currents is extremely important. They are one of the basic levels of any marine food chain and without them there are limited upper level predators in that ecosystem and the energy being produced by the primary producers does not progress up the food chain (Dam, 2012).
Introduction:
Ctenophora, Comb Jellies, are gelatinous zooplankton that inhabit almost every marine environment. They are very simple, yet complex organisms with a nerve net and a sensory organ to sense gravity (Nosrati, etal., 2013). Ctenophora have always been a phylum known for being widely distributed throughout the oceans, but do they have specific preferences for certain…

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