Round Goby (Neogobius melanstomus)
Distribution:
Source: http://biology.mcgill.ca
Identification:
SOURCE: http://www.protectyourwaters.net
SOURCE: http://www.naturewatch.ca
Impacts: Feed off of native fish eggs (lake trout) and competes with similer species such as sculpin and logperch.
Further Information:
http://www.protectyourwaters.net/hitchhikers/fish_round_goby.php
http://www.glsc.usgs.gov/main.php?c...le=Invasive Fish0&menu=research_invasive_fish
Sea Lamprey (Petromyzon marinus)
Distribution:
Source: http://www.iisgcp.org
Identification:
Source: http://www.gma.org
Impacts:
Parasitic, feeds off of other fishes, particularly ciscos, walleye and lake trout. Hosts normally don't survive.
Further Information:
http://www.issg.org/database/species/ecology.asp?si=542&fr=1&sts=
http://www.seagrant.wisc.edu/greatlakesfish/fsealamprey1.html
Northern Snakehead (Channa argus)
Distribution:
SOURCE: http://www.columbia.edu
Identification:
SOURCE: http://www.wvdnr.gov
SOURCE: http://www.dnr.state.md.us
Impacts:
Competition with and predation on native organisms
Further Information:
http://fisc.er.usgs.gov/Snakehead_circ_1251/html/channa_argus.html
http://nas.er.usgs.gov/queries/FactSheet.asp?speciesID=2265
Common Carp (Cyprinus carpio)
Distribution:
SOURCE: http://fisc.er.usgs.gov
Identification:
Not to be confused with native members of the sucker family. Common carp has a set of two barbels on it's mouth, can reach 4' in length and continuous dorsal fin with 17-21 rays. Some are covered in large scales but not all, some can be found with patches of them and others with no scales at all. Color is generally brownish but koi carp (selevetive bred strains of the same species) and be found in a wide range of colors and are often found in the wild.
SOURCE: www.wikipedia.com
Impacts:
Common carp destroy and uproot aquatic plants and the habitats they create for fish, waterfowl and other species. Their foraging behavior creates turbidity, also upsetting the habitats of native species. They also consume fish eggs and native organisms.
Further Information:
http://en.wikipedia.org/wiki/Common_carp
http://nis.gsmfc.org/nis_factsheet.php?toc_id=183
Eurasian Ruffe (Gymnocephalus cernuus)
Distribution:
SOURCE: http://www.columbia.edu
Identification:
SOURCE: http://www.iowadnr.com
Impacts:
Ruffe are a fast growing species that grow quickly, thus they can populate an area completly. They are aggresive competitors of native fishes and disrupt current predator/prey relationships.
Further Information:
http://www.issg.org/database/species/ecology.asp?si=544&fr=1&sts=
http://fwcb.cfans.umn.edu/research/ruffe/
Goldfish (Carassius auratus)
Distribution:
SOURCE: http://cars.er.usgs.gov
Identification:
Due to selective breeding goldfish come in a wide range of sizes, body types and colors. Most you're likely to encounter in the wild are feeder type "common" or "comet" goldfish who are very similer to their wild Asian counterparts. They are very similer to the common carp but lack barbels around their mouths and have shorter dorsal fins. They can reach about 2' in length.
SOURCE: http://animaldiversity.ummz.umich.edu
Impacts: Similer to the impacts created by carp. Habitat destruction (including the creation of algae blooms) and predation on native species.
Further Information:
http://nis.gsmfc.org/nis_factsheet.php?toc_id=170
http://nis.gsmfc.org/nis_factsheet2.php?toc_id=170
Rudd (Scardinius erythrophthalmus)
Distribution:
http://fisc.er.usgs.gov
Identification:
SOURCE: www.wikipedia.org
Not to be confused with golden shiners or other native cyprinids. Eight-Nine rays present in dorsal fin. Unlike the golden shiner the keey in front of the anus is covered in scales.
Impacts: Competes with and consumes native species including plants.
Further Information:
http://www.issg.org/database/species/ecology.asp?fr=1&si=614&sts=
http://fisc.er.usgs.gov/Carp_ID/html/scardinius_erythrophthalmus.html
Weather Loach (Misgurnus anguillicaudatus)
Distribution:
Identification:
Reaches 12" in length, long slender body. Six barbels around the mouth. Short lateral line that does not exceed the pectoral fin. Spines located on the pectoral fins.
SOURCE: http://artedi.fish.washington.edu
Impacts:
Competes with and consumes native species. They aren't very vulnerable to predation and have a high rate of reproduction.
Further Information:
http://nas.er.usgs.gov/queries/FactSheet.asp?speciesID=498
http://nis.gsmfc.org/nis_factsheet.php?toc_id=192
Alewife Alosa pseudoharengus
Distribution:
SOURCE: http://www.columbia.edu
Identification:
Reaches 12-15". Eyes large compaired to other herring species, diameter of eyes greater then the length of the snout.
SOURCE: http://www.invasive.org
Impacts:
Competes with native species
Further Information:
http://www.invasivespeciesinfo.gov/aquatics/alewife.shtml
http://www.seagrant.wisc.edu/greatlakesfish/alewife.html
Silver Carp (Hypophthalmichthys molitrix)
Distribution:
SOURCE: http://www.pserie.psu.edu
Identification:
SOURCE: http://www.great-lakes.org
Impacts:
Silver carp mostly eat phytoplankton, when this is scare they will feed off of zooplankton. Algae blooms have been reported in ponds stocked with these fish, zooplankton populations decline.
Further Information:
http://nis.gsmfc.org/nis_factsheet.php?toc_id=189
http://fisc.er.usgs.gov/Carp_ID/html/hypophthalmichthys_molitrix.html
Distribution:
Source: http://biology.mcgill.ca
Identification:
SOURCE: http://www.protectyourwaters.net
SOURCE: http://www.naturewatch.ca
Impacts: Feed off of native fish eggs (lake trout) and competes with similer species such as sculpin and logperch.
Further Information:
http://www.protectyourwaters.net/hitchhikers/fish_round_goby.php
http://www.glsc.usgs.gov/main.php?c...le=Invasive Fish0&menu=research_invasive_fish
Sea Lamprey (Petromyzon marinus)
Distribution:
Source: http://www.iisgcp.org
Identification:
Source: http://www.gma.org
Impacts:
Parasitic, feeds off of other fishes, particularly ciscos, walleye and lake trout. Hosts normally don't survive.
Further Information:
http://www.issg.org/database/species/ecology.asp?si=542&fr=1&sts=
http://www.seagrant.wisc.edu/greatlakesfish/fsealamprey1.html
Northern Snakehead (Channa argus)
Distribution:
SOURCE: http://www.columbia.edu
Identification:
SOURCE: http://www.wvdnr.gov
SOURCE: http://www.dnr.state.md.us
Impacts:
Competition with and predation on native organisms
Further Information:
http://fisc.er.usgs.gov/Snakehead_circ_1251/html/channa_argus.html
http://nas.er.usgs.gov/queries/FactSheet.asp?speciesID=2265
Common Carp (Cyprinus carpio)
Distribution:
SOURCE: http://fisc.er.usgs.gov
Identification:
Not to be confused with native members of the sucker family. Common carp has a set of two barbels on it's mouth, can reach 4' in length and continuous dorsal fin with 17-21 rays. Some are covered in large scales but not all, some can be found with patches of them and others with no scales at all. Color is generally brownish but koi carp (selevetive bred strains of the same species) and be found in a wide range of colors and are often found in the wild.
SOURCE: www.wikipedia.com
Impacts:
Common carp destroy and uproot aquatic plants and the habitats they create for fish, waterfowl and other species. Their foraging behavior creates turbidity, also upsetting the habitats of native species. They also consume fish eggs and native organisms.
Further Information:
http://en.wikipedia.org/wiki/Common_carp
http://nis.gsmfc.org/nis_factsheet.php?toc_id=183
Eurasian Ruffe (Gymnocephalus cernuus)
Distribution:
SOURCE: http://www.columbia.edu
Identification:
SOURCE: http://www.iowadnr.com
Impacts:
Ruffe are a fast growing species that grow quickly, thus they can populate an area completly. They are aggresive competitors of native fishes and disrupt current predator/prey relationships.
Further Information:
http://www.issg.org/database/species/ecology.asp?si=544&fr=1&sts=
http://fwcb.cfans.umn.edu/research/ruffe/
Goldfish (Carassius auratus)
Distribution:
SOURCE: http://cars.er.usgs.gov
Identification:
Due to selective breeding goldfish come in a wide range of sizes, body types and colors. Most you're likely to encounter in the wild are feeder type "common" or "comet" goldfish who are very similer to their wild Asian counterparts. They are very similer to the common carp but lack barbels around their mouths and have shorter dorsal fins. They can reach about 2' in length.
SOURCE: http://animaldiversity.ummz.umich.edu
Impacts: Similer to the impacts created by carp. Habitat destruction (including the creation of algae blooms) and predation on native species.
Further Information:
http://nis.gsmfc.org/nis_factsheet.php?toc_id=170
http://nis.gsmfc.org/nis_factsheet2.php?toc_id=170
Rudd (Scardinius erythrophthalmus)
Distribution:
http://fisc.er.usgs.gov
Identification:
SOURCE: www.wikipedia.org
Not to be confused with golden shiners or other native cyprinids. Eight-Nine rays present in dorsal fin. Unlike the golden shiner the keey in front of the anus is covered in scales.
Impacts: Competes with and consumes native species including plants.
Further Information:
http://www.issg.org/database/species/ecology.asp?fr=1&si=614&sts=
http://fisc.er.usgs.gov/Carp_ID/html/scardinius_erythrophthalmus.html
Weather Loach (Misgurnus anguillicaudatus)
Distribution:
Identification:
Reaches 12" in length, long slender body. Six barbels around the mouth. Short lateral line that does not exceed the pectoral fin. Spines located on the pectoral fins.
SOURCE: http://artedi.fish.washington.edu
Impacts:
Competes with and consumes native species. They aren't very vulnerable to predation and have a high rate of reproduction.
Further Information:
http://nas.er.usgs.gov/queries/FactSheet.asp?speciesID=498
http://nis.gsmfc.org/nis_factsheet.php?toc_id=192
Alewife Alosa pseudoharengus
Distribution:
SOURCE: http://www.columbia.edu
Identification:
Reaches 12-15". Eyes large compaired to other herring species, diameter of eyes greater then the length of the snout.
SOURCE: http://www.invasive.org
Impacts:
Competes with native species
Further Information:
http://www.invasivespeciesinfo.gov/aquatics/alewife.shtml
http://www.seagrant.wisc.edu/greatlakesfish/alewife.html
Silver Carp (Hypophthalmichthys molitrix)
Distribution:
SOURCE: http://www.pserie.psu.edu
Identification:
SOURCE: http://www.great-lakes.org
Impacts:
Silver carp mostly eat phytoplankton, when this is scare they will feed off of zooplankton. Algae blooms have been reported in ponds stocked with these fish, zooplankton populations decline.
Further Information:
http://nis.gsmfc.org/nis_factsheet.php?toc_id=189
http://fisc.er.usgs.gov/Carp_ID/html/hypophthalmichthys_molitrix.html
