Christopher Costello, John M. Drake, and David M. Lodge. 2007. Evaluating an invasive species policy: ballast water exchange in the Great Lakes. Ecological Applications 17:655–662.

Appendix B. Nonindigenous animal species in the Great Lakes believed to be introduced through shipping.

ID†	Genus‡	Species	Common name	Year§	TSN||
1	Pisidium	supinum	Humpback pea clam	1959	81417
2	Eriocheir	sinensis	Chinese mitten crab	1962	99058
3	Eubosmina	coregoni	Cladoceran	1965	83952
4	Dugesia	polychroa	Flatworm	1968	54506
5	Nitokra	hibernica	Harpacticoid copepod	1973	667882
6	Platichthys	flesus	European flounder	1974	172894
7	Corbicula	fluminea	Asiatic clam	1980	81387
8	Ripistes	parasita	Oligochaete	1980	68964
9	Gianius	aquaedulcis	Oligochaete	1983	68708
10	Bythotrephes	longimanus	Spiny water flea	1984	684624
11	Apeltes	quadracus	Fourspine stickleback	1986	166397
12	Gymnocephalus	cernuus	Eurasian ruffe	1986	168520
13	Eubosmina	maritima	Cladoceran	1988	684675
14	Dreissena	polymorpha	Zebra mussel	1988	81339
15	Dreissena	bugensis	Quagga mussel	1989	567514
16	Neogobius	melanostomus	Round goby	1990	172072
17	Proterorhinus	marmoratus	Tubenose goby	1990	172080
18	Potamopyrgus	antipodarum	New Zealaqnd mud snail	1991	205006
19	Onychocamptus	mohammed	Harpacticoid copepod	1992	86623
20	Echinogammarus	ischnus	Gammarid amphipod	1995	656834
21	Heteropsyllus	nunni	Harpacticoid copepod	1996	87538
22	Cercopagis	pengoi	Fishhook water flea	1998	684625
23	Schizopera	borutzkyi	Harpacticoid copepod	1998	87845
24	Nitokra	incerta	Harpacticoid copepod	1999	667883

† Unique numeric identifier for each species (also orders the invasion sequence).

‡ With the exception of Gianius aquaedulcis, taxonomic identification has been made consistent with currently valid designations in the Integrated Taxonomic Information System (http://www.itis.usda.gov/).

§ Year of discovery.

|| Taxonomic serial number.