We collected several top predators near Site 4, including largemouth bass Micropterus salmoides and northern pike Esox
lucius, that were not collected elsewhere in the basin.
Sex determination techniques by using external urogenital morphology have been developed for some of the mesothermal (coolwater) teleosts, including members of the ecosid family such as northern pikes Esox
lucius and muskellunge E.
Investigation of genetic diversity by microsatellite have been described within genes of a variety of fish species, including Caspian Sea Cyprinus carpio , Catla catla , Esox
lucius , Oncorhynchus masou  and Caspian Sea Salmo trutta .
Seven species not previously reported from Cox Creek included: river chub Nocomis micropogon (Cope), telescope shiner Notropis telescopus (Cope), golden redhorse Moxostoma erythrurum (Rafinesque), chain pickerel Esox
niger Lesueur, smallmouth bass Micropterus dolomieu Lacepede, greenside darter Etheostoma blennioides (Rafinesque), and banded darter Etheostoma zonale (Cope).
Histochemical characterization of myotomal muscle in the grass pickrel, Esox
americanus vermiculatus (LeSueur) and the muscle kellunge, E.
three Pikes Esox
lucios, two cyprinids, and one unidentified fish (authors' unpublished data).
AngelWoche, Blinker, ESOX
, FLIEGENFISCHEN, AERO INTERNATIONAL,
X Herring (Clupeidae) American shad, Alosa sapidissima X X Blueback herring, Alosa aestivalis X X Salmonidae Vendace, Coregonus albula X Lake whitefish, Coregonus clupeaformis X X Cisco, Coregonus artedi X Chinook salmon, Oncorhynchus tschawytscha X X Chum salmon, Oncorhynchus keta X Coho salmon, Oncorhynchus kisutch X Sockeye salmon, Oncorhynchus nerka X Steelhead trout, Oncorhynchus mykiss X Atlantic salmon, Salmo salar X X Landlocked salmon, Salmo salar X X Rainbow trout, Oncorhynchus mykiss X X Cutthroat trout, Oncorhynchus clarkii X Brown trout, Salmo trutta trutta X X Lake trout, Salvelinus namaycush X X Arctic charr, Savelinus alpinus alpinus X Brook trout, Salvelinus lontinalis X X Arctic grayling, Thymallus aroticus arcticus X X Pikes (Esocidae) Pike and pickerel, Esox
americanus Gmelin, Redfin pickerel and Grass pickerel.
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For them - and quite rightly too - esox
lucius is a valuable resource, a sport fish to be cherished.
spectabile community: and third, the Esox
americanus/Elassoma zonatum community.