|Notropis heterodon, blackchin shiner
Family: minnows and carps (Cyprinidae)
State Rarity Rank:
Global Rarity Rank:
Did you know?
A low tolerance to salt makes the blackchin shiner a good indicator of water quality (Smith 1985; Carlson 1998).
|State Ranking Justification||
The Blackchin shiner has all but disappeared from the southern New York watersheds. Their numbers are declining in the Susquehanna and Allegheny watersheds. Currently they are frequently found in the lakes and streams of the St. Lawrence watershed and bays of eastern Lake Ontario. More information is needed regarding the ecological requirements of this species (Carlson 1998, 2005; Keeler 2006).
Currently found in at least seven New York watersheds (about 25 waters) including a recent discovery in the Niagara River, the blackchin shiner is most abundant in the streams and lakes of Jefferson County, the St. Lawrence River, and several bays of eastern Lake Ontario. They are declining or absent in southern watersheds where this species was once abundant (Carlson 1998, 2005; Bureau of Fisheries, New York State Department of Environmental Conservation 2008; New York Natural Heritage Program 2008). More sampling is needed to determine the status of this species in the southern watersheds, since many of these sites have not been surveyed regularly.
Historically found in 11 of 19 watersheds (about 98 waters) including several southern and eastern watersheds where it is currently absent or declining (Lake Erie, Allegheny, and Upper Hudson), as well as the bays and creeks off the southern shore of Lake Ontario (Carlson 1998, 2005).