Marine ecosystems

Marine ecosystems

Marine ecosystems refers to our oceans and salt marshes salt water covers most of the earth’s surface and it is the home of many species including the fish ,mammals, sea plants does provide food and other useful products ,like fertilizer, animal feed ,cooking and heating oil, also medicines and clothing. Healthy coastal zones protect the coastlines from erosion and filter runoff from the land. The coral reef is limestone structures that are developed from skeletons of aquatic life and are host to great biological diversity. (235)text book the cruise ship industry in our area has to maintain the amount of garbage they take and make sure that it is disposed of the right way as long as it is untreated sewage from kitchens and bathrooms.(236)text book.

Invasive species provide unique and useful systems by which to examine various ecological and evolutionary issues, both in terms of the effects on native environments and the subsequent evolutionary impacts. While biological invasions are an increasing agent of change in aquatic systems, alien species also act as vectors for new parasites and diseases. To date, colonization’s by hosts and parasites have not been treated and reviewed together, although both are usually interwoven in various ways and may have unpredictable negative consequences. Fish are widely introduced worldwide and are convenient organisms to study parasites and diseases. We report a global overview of fish invasions with associated parasitological data. Data available on marine and freshwater are in sharp contrast. While parasites and diseases of inland freshwater fish, ornamental, reared and anatropous fish species are well documented, leading to the emergence of several evolutionary hypotheses in freshwater ecosystems during the last decade, the transfer of such organisms are virtually unexplored in marine ecosystems 


Marine ecosystems refers to our oceans and salt marshes salt water covers most of the earth.docx , Marine ecosystems refers to our oceans and salt marshes salt water covers most of the earth.docx