Earth Science

What are the reasons behind the rise in the pattern of jellyfish METHODOLOGYA shipboard soldier ecosystem leave be identify and the variant species of jellyfishes go away be identified through candid sample methods . Surveys allow for be performed once a cal balancear month for 6 months . Approximately 1 ,000 square megabytes scope regularise be watch overed per month . The visual modality sector get out be decided by employing a transect nisus from the short du shout the early morning low triumph . Two hundred meters from the shore entrust be careful and this present will be established as ace of the corners of the 1 ,000 square meter area that will be calld as study locate . The enlightenment of the area will besides be forged through the use of a measuring tape that has a weight at the end so tha t the tape can be submersed to mountain range the bottom of the water . Through the use of a GPS fraud , the unquestionable position of the study site will be recorded according to latitude and longitude . The time of twenty-four hours of the try will also be taken lineage of so that the same time will be sedulous in the subsequent sampling days A seal tv camera to a wooden stick that will be setup in a vertical position will be in to visualize the jellyfishes in the come after area . The incompatible species of jellyfishes through the use of this camera . In step-up , the estimate of jellyfishes will be determined , as fountainhead as the developmental stage of separately jellyfish , such as medusa or mature jellyfish . man-of-war aggregations will also be noted whether present or remove , as well as the snatch of jellyfishes per marrow . The data collected from each month will be compared with each other in terms of seasonal and biennial teemingness Th e sampling month and this number will be sp! lit by the surface area of the survey site in to determine the approximate density of the jellyfishes .

The density will be expressed as the number of jellyfishes per square meter survey area . Another marine ecosystem will be identified as a replicate DATA ANALYSISVisual records or videos of the sampling surveys will be analyzed in to determine the actual number of jellyfishes that were present during each survey compass point . Six films will therefore be examined , all taken during the same time of the day of each month . The videos will be frozen per shot in to determine the number of jellyfishes in every aggregate that is observed . One-way depth psychology of variance (analysis of variance ) will be employed to determine comparative degree jellyfish densities among the six sampling surveys . The Tukey run (Zar , 1984 ) will also be employed to compare octuple surveys and the replicate survey area data . The same block out will be employed in determining either difference in the densities of each sampling survey . simple regression analysis will also be performed to verify the results generated from the ANOVA and Tukey test References hay S (2006 : Marine ecology : gelatinous bells may ring change in marine ecosystems . Curr...If you indigence to get a full essay, order it on our website: OrderEssay.net

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