Invasive Species

Aquatic Invasive Species of Pennsylvania By Nicole McArdle The sea lamprey eel is an eel-like weight that has become invasive since it was introduced to the outstanding lakes. The sea lamprey is a unique creature because it spends part of its like forget me drug in the ocean, still can also survive in freshwater. sea lampreys be generally marine exactly locomote to freshwater rivers to spawn. Adult sea lampreys move to gravel areas during fountain and untimely summer. They build nest and lay orchis beforehand dying. The eggs hatch and travel downstream and burrow into the gumption where they forage on debris and algae. This stage averages about 4-6 geezerhood and they set up to about 6 inches. Then the lamprey transforms into their parasitic build where they feed on look for. Their lifespan span is about cardinal years. ocean Lamprey is inwrought to the Atlantic microscope slide from Labrador to the disconnection of Mexico and Florid a. They are also put along the Atlantic coast of Europe and Mediterranean Sea. Sea Lamprey spread to the great lakes during construction of the Welland and Erie canals a fatten out out 1921. They came from the Atlantic Ocean and the St. Lawrence Seaway finished and through the canal to the great lakes. Sea lampreys look like eels but are very different. Sea lampreys are parasites of large slant. They nonplus to be 12-20 inches long.

Their backs are dark brown or distribute and their bellies are yellow to pale brown. They have a featherlike fin that extends from their midsection to down under the tail. They have rou nd mouths with round circles rows of teeth, ! and big red eyes. Sea Lampreys feed by biting into their prey and holding on to their victims and they suck the lineage and body fluids. Most large fish survive the accession shot and are left with a scar. Small fish are not as lucky and they die to the highest degree immediately. When Sea Lampreys first came to the great lakes they killed a large chassis of version fish. People noticed that there were not some(prenominal) fish left and the ones that were left were scared. Sea Lamprey caused a weaken in...If you want to get a full essay, run it on our website: BestEssayCheap.com

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