Have recently started project in Michigan that will produce six ponds (spring fed gravel pit type), three will eventually be stocked. Currently about 25% complete with largest pond (2A), which incorporated small pre-existing pond(60'x20'x4'). Was surprised to find that former pond contained fish. Have observed 4-5 hand-sized bluegills (currently spawning), minnows, and a large school (1,000) of 1-2" black catfish-like fish. Have not identified baitfish species, which brings me to my question. Have already connected new excavation to existing pond reasoning that existing seed and plankton bank would be beneficial to relatively sterile sand and gravel. Should I seine the pond to determine these species or proceed as if they are not present? If seining is recommended, can someone recommend equipment and source?
Very happy to find this site, many questions to come.
