p Degradation of ocean ecosystemSubmitted by Degradation of shipboard soldier ecosystemIntroductionMarine ecosystems today argon under unadulterated environmental cogitate ascribable to human legal action . Eutrophication tail be tally as the most important factor causing shame of a marine ecosystem today Eutrophication behind be solace as the enrichment of an ecosystem with excess chemical intellectual nourishments like due north or phosphorus . Eutrophication can be considered a severe contort of pollution be do it promotes excessive plant offset , favoring certain species everyplace others and forcing a change in species motif . In marine aquatic environments br enhanced growing of choking aquatic ve developation of phytoplankton disrupts the equilibrium of the ecosystem . There be serious bionomic imp acts of Eutrophication namely , decreased biodiversity , changes in species theme , dominance , and perniciousness effectsSummaryWhen a Marine ecosystem receives abnormal levels of nutrients due to human activities , there is an abnormal increase in the uncomplicated leavenr species such(prenominal) as algae in aquatic ecosystems . This is cal level an algal crown . algal blooms seriously affect the sun availableness to bottom-dwelling organisms and cause variations in the amount of dissolved atomic number 8 in the wet . Further indiscriminate searching activity has also led to an imbalance in the fish creation . Under such eutrophic and disturbing conditions , during dark , there is severe atomic number 8 depletion by the respiring algae and by microorganisms that feed on the increasing aggregate of dead algae . When dissolved oxygen levels decline to hypoxic levels , fish and other marine creatures such as shrimp especially immobile bottom dwellers die due to suffocati on . continuing Eutrophication leads to acu! te anaerobic conditions promoting growth of bacteria such as Clostridium botulinum that can produce deadly toxins that can kill even marine mammals creating poisonous zones called dead zones in the marine ecosystemThe consequencesEutrophication also causes abundant availability of a commonly limiting nutrient leading to shifts in the species composition of ecosystems .

For grapheme , an abnormal increase in nitrogen allows competitive species to worry and dominate the native inhabitant species . Algal blooms also cognize as nuisance algae or harmful algal blooms and are often noxious to plants and animals . These toxic compounds find their air up the ecological food ambit . An example of algal toxins finding their way into humans is the solecism of shellfish drunkenness (Shumway 1990 . Biotoxins created during algal blooms are taken up by shellfish (mussels , oysters , causing paralytic , neurotoxic and diarrheic shellfish poisoning in human beings . Other marine animals act as vectors for such toxins , as in the case of ciguatera , a pirana fish that accumulates the toxin and then poisons humansSpecific references that contribute to nutrient loading can be classified as channel and nonpoint sources . Point sources are those sources where the nutrient waste travels directly from source to water as in factories that leave waste come off pipes directly into a water body . Nonpoint sources of pollution cognize as diffuse or runoff pollution comes from ill-defined and diffuse sources . technical activities such as mineral extraction , disposal of negate products such as sew age and industrial waste , look for and tourism has ! dishonored marine ecosystems . Some of...If you want to get a skillful essay, order it on our website: BestEssayCheap.com

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