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Thread: SMY of 5-6 KGS x 3 :)

  1. #11
    Join Date
    Apr 2011
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    Gauteng
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    793

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    Its of the Clanwilliam clan..........I rec
    ".....angling is a sport that requires as much enthusiasm as poetry, as much patience as mathematics and as much caution as housbreaking". - James Rennie 1883

  2. #12

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    Looks like the Vaal is going to be crammed like a tin of sardines this weekend......Thanks Richard

  3. #13
    Join Date
    Apr 2010
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    Gauteng
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    Richard,

    Fantastic fish!

    At the Christiana Festival this weekend there were a couple of students doing a presentation on the results of some of the studies that have been conducted by their university (think it was Potch).

    The university has an enclosed system where they study yellows where they have tried various experiments including simulating various flows over various substrates, etc in an attempt to get the yeollows to breed in captivity.

    What was extremely interesting is that they did a study on the feeding habits of SM yellowfish. They took a population of SM yellows and split them into two dams. They fed the fish in the first dam a diet consisting of small fish, crustaceans, etc. and the other dam were only fed the more regularly known SM yellow diets (caddis, bloodworm, nymphs, etc.) that they had to forage on the ground for.

    Within only 3 months they started to see changes in the jaw morphology of the SM yellows having to hunt for their food, to the point where they were quite difficult to distinguish from a LM yellow. The fish in the second dam retained there characterisic downward facing look.

    They have not found any DNA evidence to suggest a hybridisation of the two species but their view is that the yellows being caught that bear the characterisitcs of both a LM and SM yellow are simply SM yellows who have adapted to a diet of mostly smaller fish, crabs, etc.

    Not conclusive but very interesting nevertheless.
    Bryan Williams

    “My Biggest worry is that my wife will sell my fishing gear for what I said I paid for it!”

    Check out my albums

  4. #14
    Join Date
    Apr 2011
    Location
    Gauteng
    Posts
    793

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    Quote Originally Posted by Bryan View Post
    Richard,

    Fantastic fish!

    At the Christiana Festival this weekend there were a couple of students doing a presentation on the results of some of the studies that have been conducted by their university (think it was Potch).

    The university has an enclosed system where they study yellows where they have tried various experiments including simulating various flows over various substrates, etc in an attempt to get the yeollows to breed in captivity.

    What was extremely interesting is that they did a study on the feeding habits of SM yellowfish. They took a population of SM yellows and split them into two dams. They fed the fish in the first dam a diet consisting of small fish, crustaceans, etc. and the other dam were only fed the more regularly known SM yellow diets (caddis, bloodworm, nymphs, etc.) that they had to forage on the ground for.

    Within only 3 months they started to see changes in the jaw morphology of the SM yellows having to hunt for their food, to the point where they were quite difficult to distinguish from a LM yellow. The fish in the second dam retained there characterisic downward facing look.

    They have not found any DNA evidence to suggest a hybridisation of the two species but their view is that the yellows being caught that bear the characterisitcs of both a LM and SM yellow are simply SM yellows who have adapted to a diet of mostly smaller fish, crabs, etc.

    Not conclusive but very interesting nevertheless.
    Thanks Brian, this definitely makes some sense.
    ".....angling is a sport that requires as much enthusiasm as poetry, as much patience as mathematics and as much caution as housbreaking". - James Rennie 1883

  5. #15

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    The second fish is a largie...no doubt.
    Well done, some awesome fish you guys got there.

  6. #16
    Join Date
    Oct 2009
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    gauteng
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    37

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    Wrong Michael its a SM sure as death and taxes.

  7. #17
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    Jun 2009
    Location
    Boksburg
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    The eyes distance to the mouth is closer and nearly 2x the distance to the and of gill plate ===> Largie

  8. #18
    Join Date
    Oct 2006
    Location
    JHB, Gauteng
    Posts
    410

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    Quote Originally Posted by Michael View Post
    The second fish is a largie...no doubt.
    Well done, some awesome fish you guys got there.
    Quote Originally Posted by geoffrey View Post
    Wrong Michael its a SM sure as death and taxes.
    Quote Originally Posted by Glans View Post
    The eyes distance to the mouth is closer and nearly 2x the distance to the and of gill plate ===> Largie
    OH it's on!!

  9. #19

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    Both fish are Smallmouth yellows. They are large though.

  10. #20
    Join Date
    Jul 2008
    Location
    Free state
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    Jip,both smallies.

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