Norm :

Thanks for the report. Those seem like high mort. rates on adult fish in your described situation (with a 6 yr. old pond in your area). I do have to remind myself that all things mort. in the end and that this fact should be added to the % equation. Do you think that most of the adult fish in your pond are caught once a year or more or less. Catch rate morts. are quite hard to get a good read on for me. Studies are all over the place ,which is expected.

Sources of good quality adult fish from reliable sources are hard to find unless you can catch and id them yourself. But it seems to be getting better here at least for some species.