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Thread: Predator in JB

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  1. #1
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    Default Predator in JB

    On each of my recent dives in JB, there is a fish (looks like a white bass or hybrid) that stays with me during the entire dive, feeding on the little baitfish.

    While it's interesting that it can learn to follow a diver to feed, I'm concerned because on my recent dive it started eating the little white cave critters further in.

    Any thoughts if this is an issue/threat to the population in JB?

    Sent from my LG-K425 using Tapatalk


  2. #2
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    Quote Originally Posted by johnj View Post
    On each of my recent dives in JB, there is a fish (looks like a white bass or hybrid) that stays with me during the entire dive, feeding on the little baitfish.

    While it's interesting that it can learn to follow a diver to feed, I'm concerned because on my recent dive it started eating the little white cave critters further in.

    Any thoughts if this is an issue/threat to the population in JB?

    Sent from my LG-K425 using Tapatalk
    They have the same problem in Mexico. Some of the guides have you shut off your lights, and do a "lights out drill" until you get well past the daylight zone. That way, you don't help the predators eat the cave adapted critters.

    Forrest Wilson (with 2 Rs)
    Any opinions are personal.
    Sump Divers

  3. #3

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    Quote Originally Posted by FW View Post
    They have the same problem in Mexico. Some of the guides have you shut off your lights, and do a "lights out drill" until you get well past the daylight zone. That way, you don't help the predators eat the cave adapted critters.
    That was happen to me last week too! It followed me all the way to 1,900ft. Thank you Forrest, I'll do the drill from now whenever I see that fish follow me.


  4. #4
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    You could carry a sharp stick with you on the dive....


  5. #5
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    I thought somebody lost a computer


    Sent from my iPhone using Tapatalk


  6. #6
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    Quote Originally Posted by rddvet View Post
    I thought somebody lost a computer


    Sent from my iPhone using Tapatalk
    So did I... lol


  7. #7
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    Quote Originally Posted by johnj View Post
    On each of my recent dives in JB, there is a fish (looks like a white bass or hybrid) that stays with me during the entire dive, feeding on the little baitfish.

    While it's interesting that it can learn to follow a diver to feed, I'm concerned because on my recent dive it started eating the little white cave critters further in.

    Any thoughts if this is an issue/threat to the population in JB?

    Sent from my LG-K425 using Tapatalk
    This is bad because as Forrest noted, a trogloxene can decimate a troglobitic population, which can be imperiled or critically imperiled, by being conditioned to use divers. I have seen this type of behavior at couple sites, and learned when accessing a site with trogloxenes using my light, I will cover my light with my fingers, and decrease my light output until I have left behind the predator.

    "Not all change is improvement...but all improvement is change" Donald Berwick

  8. #8
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    Quote Originally Posted by Kelly Jessop View Post
    This is bad because as Forrest noted, a trogloxene can decimate a troglobitic population, which can be imperiled or critically imperiled, by being conditioned to use divers. I have seen this type of behavior at couple sites, and learned when accessing a site with trogloxenes using my light, I will cover my light with my fingers, and decrease my light output until I have left behind the predator.
    english please?

    I still miss diving in Bonaire at night with tarpons and lighting up targets


  9. #9
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    Quote Originally Posted by patpicos View Post
    english please?

    I still miss diving in Bonaire at night with tarpons and lighting up targets
    Species that visit the cave environment,by using cave divers lights, have an easy opportunity to eat cave dwelling species that have small population bases. Cover your light.

    "Not all change is improvement...but all improvement is change" Donald Berwick

  10. #10
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    Quote Originally Posted by Kelly Jessop View Post
    Species that visit the cave environment,by using cave divers lights, have an easy opportunity to eat cave dwelling species that have small population bases. Cover your light.
    I was looking for the difference between : trogloxene / troglobitic (i dont remember the difference)



 

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