Smith, Lexi” Comments

  1. Kimberly Peter Kimberly Peter

    Hi Lexi,

    I enjoyed reading your poster. It looks like your research could be very valuable to maximize time and cost toward raising Guadalupe Bass fingerlings. I have a couple of questions:
    1. Your poster said you adjusted food to maximize growth and minimize waste. Did you control for the volume of food in each tank? For example, maybe giving each tank the same number of calories per fish?
    2. Did you look at the variance among replicate tanks? I would be interested in seeing those results which could be done with error bars on your bar graphs or using box plots.

    • Lexi Smith Lexi Smith

      Hi Kimberly,
      First off, let me say thank you for taking the time to read into the poster . I am happy that you enjoyed the content of the research.
      To answer your questions:
      1: To efficiently maximize growth and minimize waste each tank was controlled by the number of ounces each tank consumed . Routine observations throughout each day helped determine if a specific tank’s feed regimen needed to be increased, decreased, or maintained.
      2: Replicate tanks showed little variation , producing the same results . Tanks of each regimen showed to be rather persistent with equivalent growth and mortality .

      • Nate Smith Nate Smith

        As Lexi mentioned, the replicate tanks were really quite similar, with the possible exception of the Koi tanks. Here are the individual tank data for the # of 100-mm fish harvested at 11 weeks.

        Bloodworm Minnow Pellet Koi
        tank 1 160 243 23 136
        tank 2 118 272 20 92
        tank 3 119 233 9 49
        mean 132.3 249.3 17.3 92.3
        SD 24.0 20.3 7.4 43.5

  2. Ryan OHanlon Ryan OHanlon

    Hi Lexi,

    Why do you think that they didn’t perform well off the pellet?

  3. Timothy Bonner Timothy Bonner

    What are the pros/cons of stocking 50 mm fish and 100 mm fish? Has there been additional research to show that 100 mm fish survive better after stocking? If so, then this could help justify use of more expense food items to reach the 100 mm size.

  4. Nate Smith Nate Smith

    We are currently evaluating just that question in the NF and SF Guadalupe River. We are comparing stocking 50 mm vs 100 mm fingerlings both with and without removal of extant Guadalupe Bass/hybrids with the goal or reducing/eliminating Smallmouth hybrids. 2020 was the first full year of stocking efforts to address this question, so results TBD.

    Lexi’s work was instrumental in getting the fish up to 100 mm for this effort.

  5. Joshua Flowers Joshua Flowers

    Lexi,

    Per the feeding of the fish pellets:
    What type of food did you use, (manufacture, pellet size)?
    Was it a feed ration geared to bass (protein, Carbs etc),?
    Why didn’t the bass train to the feed?

    If you did this again could and how would you get the bass to eat pelleted food?

    Why did you not look at combining 2 or 3 of the available rations? Would it increase size growth and reduce time in tanks? Would it allow for faster stocking times and greater stocking ratio’s?

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