The science has come a LONG way in 30 years. These are wild strain fish with the specific river’s genetic stock unmanipulated for mass production we are taking about now too. These folks working together are trying to create a better situation for our waters and Atlantic Salmon in our state. I doubt climate change is going to be helpful, but AT LEAST they groups are not sitting around whining and beeching and doing nothing. Science is based on trial, error, learning and progressing, NOT nay-saying.
Quote from: taxid on Oct 04, 2019, 07:25 AMGood points however there is a lot more to salmon than just rearing them in a hatchery, dumping them into a river and then hoping for the best which is what has happened in the past. They are more sensitive than other salmonid species and more complex. Quote from: thedirtydirtyfisherman on Oct 04, 2019, 08:24 AMvery true statement, I do have a lot of faith in the hatchery to produce the salmon, just concerned about the environment that the salmon will find themselves in and their ability to survive that in large numbers.For sure!
Good points however there is a lot more to salmon than just rearing them in a hatchery, dumping them into a river and then hoping for the best which is what has happened in the past. They are more sensitive than other salmonid species and more complex.
very true statement, I do have a lot of faith in the hatchery to produce the salmon, just concerned about the environment that the salmon will find themselves in and their ability to survive that in large numbers.
Put a few pens in Sebago and maybe some of you guys will stop whining and crying.
climate change is a chinese hoax though?! but seriously, you may be right that it's "too late" or it may not be as successful as they intend. However, Atlantic Salmon runs have been trending upward for the last couple of years in Penobscot (and the Kennebec). Penobscot just hit the 1,000 mark for returns this year since the first time in almost a decade. I think it's worth it to try something new, maybe it's their last-ditch effort.
The science has come a LONG way in 30 years. These are wild strain fish with the specific river’s genetic stock unmanipulated for mass production we are taking about now too. These folks working together are trying to create a better situation for our waters and Atlantic Salmon in our state. I doubt climate change is going to be helpful, but AT LEAST these groups are not sitting around whining and beeching and doing nothing. Science is based on trial, error, learning and progressing, NOT nay-saying. Fishing is like that too, jigfrig! Do catch more fish than you did 30 years ago? How did you learn?
https://bangordailynews.com/2019/10/05/news/hancock/this-major-effort-to-restore-atlantic-salmon-involves-a-company-that-raises-the-fish-for-food/
Question.......There must be wild Landlocked Salmon parr (drop down spawn from Matagamon)in the East branch. How will biologists differentiate them from wild Atlantic Salmon parr, and if a Landlocked salmon is introduced to salt water, can they osmoregulate?
All trout and salmon can acclimate to salt water, however, the have to be a certain size as under that size they can't do it or will have problems. I.E. sea run brook trout, brown trout, cutthroat, arctic char, etc. etc I would guess they will either fin clip or tag the fish if they think it's important. Not the temporary spaghetti or Floy tags but a tiny injectable tag that is scanable.What's amazing is the growth they are getting in some experimental net pens in saltwater with steelhead in NH. Five pounds or more in seven months. https://seagrant.unh.edu/steelheadtrout
what would size have to do with acclimation to salt water? what "problems" would happen under "that size" (which size is that?) or do you mean in terms of surviving predatory fish?
The size corresponds with when the organs of the fish are mature enough to handle the increase in salinity. In salmon it's the smolt stage. Placing the same fish as fry into saltwater would he lethal. Not the same, but I have found size also is closely tied to sexual maturity and age can take a back seat. I have trout that are sexually mature at the end of their first year due to their increased size from ample feed vs. their wild counterparts that are much smaller. As I'm sure you know a wild brook may not be sexually mature until age 2 or three while my farm raised fish are ready to go at the end of their first year. The egg quality may be better at age 2 but there most definitely are eggs.
Good info! Thanks!!Nice to see people that have actual knowledge and experience to share!!!