Thanks Thanks:  5
Likes Likes:  165
Page 51 of 53 FirstFirst ... 414950515253 LastLast
Results 501 to 510 of 525
  1. #501

    Default Re: Non-native salmon species

    Quote Originally Posted by ohanzee View Post
    The information is there in front of you.
    That's an admission that you can't defend your allegation even to yourself isn't it?

  2. #502
    Join Date
    Sep 2017
    Location
    Thick end of the stick.
    Posts
    1,318

    Default Re: Non-native salmon species

    Quote Originally Posted by tangled View Post
    Uh, what is my view? As far as know I don't have one, I'm just trying to find out what we know.
    Well you have come across to me as seeing the pinks as only a good thing with no negative effects at all.
    Yet we just don't know and so the precautionary principle should apply.
    The only one I've seen this year got smacked on the head!

  3. #503

    Default Re: Non-native salmon species

    Quote Originally Posted by bobmiddlepoint View Post
    Well you have come across to me as seeing the pinks as only a good thing with no negative effects at all.
    Then you're totally mistaken.

    Yet we just don't know and so the precautionary principle should apply.
    What precautions are those?

    The only one I've seen this year got smacked on the head!
    I ate 4 in July. Not quite as good as atlantics.

  4. #504
    Join Date
    Sep 2017
    Location
    Thick end of the stick.
    Posts
    1,318

    Default Re: Non-native salmon species

    Quote Originally Posted by tangled View Post
    Then you're totally mistaken.
    Me and everybody else reading your miss informed mumbo jumbo (having an idle moment I re read the first half of the thread before I lost the will to carry on).


    Quote Originally Posted by tangled View Post
    What precautions are those?
    Any that ensure they don't become established.

  5. #505

    Default Re: Non-native salmon species

    Quote Originally Posted by bobmiddlepoint View Post
    Any that ensure they don't become established.
    I doubt we'll have much effect if 2017 is repeated regularly. Though it now looks that 2017 was a exceptional event.

  6. #506

    Default Re: Non-native salmon species

    Quote Originally Posted by tangled View Post
    I doubt we'll have much effect if 2017 is repeated regularly. Though it now looks that 2017 was a exceptional event.
    In Norway.

    The point of the Norwegian paper for us is that it possibly offers a picture of what to expect should the population spread here.

  7. #507

    Default Re: Non-native salmon species

    Quote Originally Posted by ohanzee View Post
    In Norway.
    In Norway what?

    The point of the Norwegian paper for us is that it possibly offers a picture of what to expect should the population spread here.
    Well of course, but the paper doesn't identify any actual harm does it? The extract you posted gave a balanced view and speculated on possible impacts - it said that the general characteristics of pink ecology in freshwater may indicate limited impact. Which is what I've been saying for many pages here and you've been denying - without evidence or reason.

    The paper does goes on to speculate on scenarios which would have various benefits and harms. Overall we just don't know; there certainly will be some impact but there's nothing in that report to suggest your predictions of an ecological catastrophe similar to grey squirrel introductions.

    It also has nothing to say about what we could realistically do about it anyway.

  8. #508
    Join Date
    Feb 2009
    Location
    Scotland
    Posts
    3,219

    Default Re: Non-native salmon species

    The Russians must know what effect pink salmon had on their river apparently they were introduced in the 60,s.
    I've googled it but can't find anything regarding pink salmons effect on ecology in Russian rivers?

    Al

  9. #509

    Default Re: Non-native salmon species

    Quote Originally Posted by speytime View Post
    The Russians must know what effect pink salmon had on their river apparently they were introduced in the 60,s.
    I've googled it but can't find anything regarding pink salmons effect on ecology in Russian rivers?
    There are quite a few russian papers referred to in Ohanzee's Norwegian report. But they're in Russian ;-). I assume they've included all that is known.

    From my own limited experience in Russia, the Atlantics and Pinks coexist. Whether the Atlantics would do better without the Pinks I have no idea, but there are certainly plenty of Atlantics in the rivers.

    When I've been there, other anglers have reported seeing literally hundreds on Pinks in a pool near the sea waiting to run and one guy pulled twenty out of a higher up pool the next day. He referred to it it almost like fishing in a stew pool. He had a lot of fun for a while but felt enough was enough.

    After a blank day on a different river two anglers went down to remind themselves what a fish on their line feels like and felt the better for it.

    I'm told that later in the season - after mating - there are rotting carcasses everywhere in the pools - not something I'd enjoy seeing.

    If you get the timing right tho' you pick up both fresh run fish in sensible numbers and in prime condition and it's a lot of fun.

    That's not to say that anyone would trade an Atlantic for a Pink - not a chance.

  10. #510
    guest54 Guest

    Default Re: Non-native salmon species

    This may answer at least one question.

    Pink salmon fry are usually quick to exit the spawning streams, which should minimize food competition with other fish, Sandlund said, but “Russian scientists claim that pink salmon fry may remain in the river for longer periods, up to weeks, and that high densities of pink salmon fry do have a substantial negative effect on the density of Atlantic salmon juveniles.”

    As far as competing for food is concerned, one paper claims that Pink's have a different diet to Atlantic's and will readily change that diet which may explain why some Pink populations experience delayed maturation, this leads to a different breeding cycle, from two to three or even four yearly breeding cycles.

Page 51 of 53 FirstFirst ... 414950515253 LastLast

Similar Threads

  1. Another Native Species Under Threat - Morning Star
    By Editor in forum Fly Fishing News
    Replies: 31
    Last Post: 03-02-2017, 03:58 PM
  2. Non-native Salmon Found in UK Waters
    By Fish & Fly Team in forum Fly Fishing News
    Replies: 2
    Last Post: 07-08-2015, 03:37 PM
  3. Urbantrout Diaries 6: Taking the Fight to Invasive Non-native Species
    By Fish & Fly Team in forum Fly Fishing News
    Replies: 2
    Last Post: 02-05-2014, 08:29 AM
  4. Invasive Alien Species that Affect our Native Fish Species
    By Editor in forum Ear to the Ground
    Replies: 1
    Last Post: 23-07-2013, 03:57 PM
  5. Scotland protects native fish species with new law
    By FlyForumAdmin in forum Fly Fishing News
    Replies: 0
    Last Post: 19-08-2008, 09:38 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •