What is the type of fish that kills ecosystems and if found in lakes it must be reported and killed?
by admin on Wednesday, March 2nd, 2011 | 3 Comments
I was in a fishing shop in near the Canadian border in 1000 islands, I saw a poster that caught my attention. It warned fishermen of a fish that apparently was bad for the ecosystem, it survived better than most fish and killed off plants and that wasn’t naturally there and if caught it should be “killed, and reported to your park’s main office, DO NOT throw the fish back in the water”. This fish was really ugly and had a weird head
This
The Asian Big Head Carp.
there are several of these. starting with silver carp.
to giant snakehead, walking catfish, round goby, zebra/quagga mussels, northern pike (in california).
there are others, surely. would a bull shark qualify? they can exist in fresh water.
It was most likely referring to either a) the Northern snakehead or b) bighead carp or c) silver carp.
all three are species native to asia which have been introduced to north america.
the northern snake head is a vicious fish that almost looks like burbot. it can grow to 3 feet in length and will literally eat out all other species of fish. Two populations of this air-breathing predator have been identified in New York State; one in two connected ponds in Queens, NYC and one in Ridgebury Lake in the Town of Wawayanda, Orange County. While the Queens population is confined, the Ridgebury population, situated in the Wallkill River drainage, has the potential to infest the entire Hudson River drainage and beyond to the Great Lakes and continental US.
Snakeheads are highly invasive and have the potential to disrupt recreational and commercial fishing, harm native fish and wildlife, and impact our economy. New York State prohibits possession, sale and live transport of snakehead fish (genus Channa and Parachanna) and their viable eggs. Importation and interstate transport of snakeheads is prohibited under federal Lacey Act. Northern snakeheads are top predators capable of growing to at least three feet long and surviving throughout the continental US in a variety of habitats. With teeth similar to our pike and walleye, they are superb predators. They feed voraciously, primarily on other fish but also eat frogs, crayfish and aquatic insects. While they prefer weedy shallow waters, they can inhabit virtually any of our lakes and streams. They tolerate a wider range of oxygen levels than our native species. When oxygen is insufficient to support most of our native fish, snakeheads can breathe air and they may survive for days out of water in damp conditions. Young fish can move across the ground to access water. Snakeheads spawn multiple times each year with females releasing tens of thousands of eggs each time. Eggs hatch in one to two days during the summer and parents guard the young until they begin to feed. Upon hatching, snakeheads feed on zooplankton then begin consuming other fish larvae when they are less than an inch long.
the bighead and asian carp are both problems for great lakes. Asian carp have been found in the Illinois River, which connects the Mississippi River to Lake Michigan. Due to their large size and rapid rate of reproduction, these fish could pose a significant risk to the Great Lakes Ecosystem.
To prevent the carp from entering the Great Lakes, the U.S. Army Corps of Engineers, U.S. EPA, the State of Illinois, the International Joint Commission, the Great Lakes Fishery Commission, and the U.S. Fish and Wildlife Service are working together to install and maintain a permanent electric barrier between the fish and Lake Michigan.
Two species of Asian carp — the bighead and silver — were imported by catfish farmers in the 1970′s to remove algae and suspended matter out of their ponds. During large floods in the early 1990s, many of the catfish farm ponds overflowed their banks, and the Asian carp were released into local waterways in the Mississippi River basin.
The carp have steadily made their way northward up the Mississippi, becoming the most abundant species in some areas of the River.
The Chicago Sanitary and Ship Canal, where the barrier is being constructed, connects the Mississippi River to the Great Lakes via the Illinois River.
Asian Carp are a significant threat to the Great Lakes because they are large, extremely prolific, and consume vast amounts of food. They can weigh up to 100 pounds, and can grow to a length of more than four feet. They are well-suited to the climate of the Great Lakes region, which is similar to their native Asian habitats.
Researchers expect that Asian carp would disrupt the food chain that supports the native fish of the Great Lakes. Due to their large size, ravenous appetites, and rapid rate of reproduction, these fish could pose a significant risk to the Great Lakes Ecosystem.