West Coast streams are considered very sterile in relation to the tributaries to LO, very little nutrients for maintaining the ecosystem without the salmon carcasses. In LO Tribs, salmon carcasses are a pollutant source (nutrients, and the contaminants that cause the consumption advisory), many of the streams and even the SR have plenty of phosphorus and nitrogen without the additional decomposition by-products. The Genesee used to get so full of rotting fish carcasses by the end of snagging that you had to wait for a couple of weeks and some high water for the stench to subside, and I've had days when I got out of the LFZ quickly because the back channels were so full of "stankers."
A long time ago it was explained that, on a dollar per dollar basis, it is possible to raise 100 kings, 10 steelhead, or one Atlantic to stocking size. A large number of the smaller AS that went in last fall and some of the other stocker AS come from the USGS BRD facility in Cortland, DEC fish come from Saranac. Lakers and AS are native species, and there are objectives for the lake that involve restoration of native species, so I don't think these programs go away for a while even though at least the AS is a small program. But with the snafu's with the Federal Laker hatchery system, I would not be surprised if the Lake Trout numbers are also part of the discussion about what to do, as they are having to hunt for fish again.
Smelt and Emeralds are in such low numbers as to be nearly not a factor. And Gobies have a benthic orientation even if they are out to 200 ft, while Kings and Steelhead orient to thermal breaks out over even deeper water once the summer stratification starts to occur, and this is the domain of the alewife. Because the browns are more benthic, they are profiting from the gobies. Current reports, it needs to be remembered, are from the period of time when the thermal bar is just breaking up, the Lake is still pretty well mixed thermally, and the salmonids are still inshore picking off post spawn alewife that will soon be offshore. Lets see what is being eaten in a month or so when the summer pattern has set in (if anyone is catching anything, last year it kind of died once stratification got going (and I am aware that a big pond like LO does not stratify strongly like a smaller lake, but bars and breaks occur locally all summer)).
The complete 2015 report is on the DEC site as of the other day, read Brian Weidel's report on the bait.
http://www.dec.ny.gov/doc...marine_pdf/lorpt15.pdf