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  1. #471
    Join Date
    Feb 2014
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    Well within my comfort zone
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    8,847

    Default Re: Non-native salmon species

    No reports from coastal nets?
    2019 & it will be time for a change.

  2. #472
    Join Date
    Jun 2009
    Location
    Linlithgow, Scotland and anywhere i can wet a line!
    Posts
    10,230

    Default Re: Non-native salmon species

    Quote Originally Posted by tangled View Post
    “Pink salmon in their native range have a strict two year life cycle, thus odd and even-year populations do not interbreed. In the state of Washington, Pink salmon runs occur on odd years.[3]”

    Pink salmon - Wikipedia

    2017 was a big year here and 2018 wasn't so I reckon 2019 will be another big one. We'll know in a few months.
    Yep, fair comment, but these are non native, arriving here, (uk rivers) after being introduced elswhere over several years.
    Would be folly to assume they only appear every two years.

    regards
    bert

  3. #473

    Default Re: Non-native salmon species

    Quote Originally Posted by aenoon View Post
    Yep, fair comment, but these are non native, arriving here, (uk rivers) after being introduced elswhere over several years.
    Would be folly to assume they only appear every two years.
    The pinks arrived here from the Baltic having tracked round the top of Russia, Norway and Sweden. The Baltic fish were artificially introduced over several years so it's very likely that we'll see pinks arrive every year but so far they're showing the biannual cycle. So it seems that only one population has started to migrate much at the moment.

    A lot of pinks were seen in 2017 and they bred so it's reasonable to expect some returning fish - how many depends on how successful river managers were at destroying their redds.

    Whether more will migrate again from the Baltic is an unknown - there's some evidence that they migrate from their birth rivers when they reach a high population density there. Maybe 2017 was a bumper year? Dunno.
    Last edited by tangled; 26-03-2019 at 09:26 AM.

  4. #474
    Join Date
    May 2006
    Location
    Carron Speyside
    Posts
    4,942

    Default Re: Non-native salmon species

    Quote Originally Posted by taffy1 View Post
    No reports from coastal nets?
    There are no nets in Scotland till 1st April, then there are no coastal nets, only "inshore" nets.
    Malcolm
    <')\\\\\<<
    Quot homines tot sententiae

  5. #475
    Join Date
    Dec 2008
    Location
    Western Isles, Scotland
    Posts
    405

    Default Re: Non-native salmon species

    Quote Originally Posted by williegunn View Post
    There are no nets in Scotland till 1st April, then there are no coastal nets, only "inshore" nets.
    Where are there any proper nets left in Scotland that target salmon?
    Half nets and illegal mono do not count.

  6. #476
    Join Date
    May 2006
    Location
    Carron Speyside
    Posts
    4,942

    Default Re: Non-native salmon species

    Quote Originally Posted by Laxdale View Post
    Where are there any proper nets left in Scotland that target salmon?
    Half nets and illegal mono do not count.
    Tweed, Ness system to name but two.
    Malcolm
    <')\\\\\<<
    Quot homines tot sententiae

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