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 circle in the ocean, still can also survive in freshwater. sea lampreys be generally marine simply surface to freshwater rivers to spawn. Adult sea lampreys move to gravel areas during rise and untimely summer. They build nest and lay orchis in front dying. The eggs hatch and travel downstream and burrow into the vertebral column where they forage on debris and algae. This stage averages about 4-6 eld and they set up to about 6 inches. Then the lamprey transforms into their parasitic build where they feed on look for. Their breeding span is about cardinal years. ocean Lamprey is essential to the Atlantic microscope slide from Labrador to the disconnection of Mexico and Florida. They are al so set 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 flump 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 cling to be 12-20 inches long.

Their backs are dark brown or debile and their bellies are yellow to pale brown. They have a plumose fin that extends from their midsection to down under the tail. They have lot mouth s 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 character and body fluids. Most large fish survive the ascend shot and are left with a scar. Small fish are not as lucky and they die about immediately. When Sea Lampreys first came to the great lakes they killed a large go of version fish. People noticed that there were not umteen fish left and the ones that were left were scared. Sea Lamprey caused a weaken in...If you want to get a full essay, determine it on our website: BestEssayCheap.com

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