Titus Seilheimerさんのイラストまとめ

@Hyalaphora

@GreatLakesErin @AngieLCarter

Another Great Lakes fish diversity champion is the Cisco! Multiple species (or forms) developed in the Great Lakes since the last glacial retreat.

@LampreyControl has this monograph if you want to dig in more:

https://t.co/MYli6BtdkG

#FreshVsSaltyFish

@DrKatfish @SolomonRDavid @ericrsails @donaldorth @WildlifeBioGal @ReelAngle @UWiscSeaGrant Lake Superior not in native range for Freshwater Drum, but they colonized it, likely through the locks of the St Mary's.

An example of a species native to the region expanding its range into a new area. Impacts, if any, are unknown.

https://t.co/N6OE7N8TFe

#25DaysofFishmas

@DrKatfish @WildlifeBioGal @ericrsails @donaldorth @ReelAngle @SolomonRDavid @UWiscSeaGrant Historically the American Eel was only found in one Great Lake (Lake Ontario).

Connections via Welland Canal and stocking means that they have been found in all the Great Lakes.

From 1877-1891, over 2.2 million eels were stocked in Michigan.

https://t.co/svaI4p2abm