Been catching some hybrids in the main pond this fall and a couple fish have me perplexed. I'm far from an expert when it comes to identifying genetic traits on lepomis hybrids, so wanted to request your feedback.

Little background on lepomis genetics present in current fishery:

CSBG [Northern BG]
RES
RES/GSF [RGSF] mistakenly stocked as RES while collecting wild RES several years ago
HBG No clue where these came from - far and few between and quite large.

First two photos I'm 99% are BRES hybrids.

1. Small gape, although not too visible in photo it had pronounced dark red margin on opercular tab.



2. Small gape, less visible and lighter orange margin on tab.



I'm uncertain on these next two fish. Both had yellow pectoral, pelvic and anal fins, and very large gapes which suggested to me presense of GSF gentics. Some RES have yellow fins...so this clouds the situation, but the gape was still larger than a pure RES. My WAG is these could be RGSF/RES hybrids. Lepomis experts - could these be 25% GSF - or just RES with abnormally large gapes?

Fish 1





Fish 2




Many men go fishing all of their lives without knowing that it is not fish they are after. ~ Henry David Thoreau

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