Help me find answers to this scenario

[Sea Flat]

Like someone else said, I would try to experiment and find a way of fishing similar, but less toxic.

Everyone (including myself) is thinking that you are talking about yo-yoing and if you are there are already many other proven methods that will accomplish the same thing and you are able to do it less toxic.

If you are not talking about yo-yoing than the "toxin" you keep referring to, if it would be harmful to you if you ate the fish you catch with it I would absolutely stop fishing with it. My thought being that even if you were irresponsible, fished with this toxic method and threw the fish back, there is nothing to say that someone else, in a matter of minutes or hours, couldn't come by and catch that fish, keep it, and then ingest this toxin as well.

Lastly, isn't the fun of fishing the challenge? I can tell by your language that you know/think this is wrong. It really isn't a catch at all costs type of thing with you is it? A few less fish, but caught in a more challenging and safe way sounds a lot more rewarding to me.

Great question!!

[tlapinski]

Is there scientific data available which shows how long lead must be inside the stomach of a fish, bird or human before enough lead is absorbed into the bloodstream to become lethal?

[zimmy]

Originally Posted by tlapinski

Is there scientific data available which shows how long lead must be inside the stomach of a fish, bird or human before enough lead is absorbed into the bloodstream to become lethal?

Absorption rates in humans are known A child in Oregon died of lead poisoning within four days of swallowing a necklace that contained lead. He had syptoms within 24 hours.
In children, up to 50% of ingested lead may be absorbed (see Grant, L.D. (2009). "Lead and compounds". In Lippmann, M.. Environmental Toxicants: Human Exposures and Their Health Effects (3rd ed.). Wiley-Interscience. ISBN 0-471-79335-3).

LD50 of lead is known for many fish, birds, etc. Given the digestive system in fish, the lead is not going to pass through the digestive tract and will stay in the fish to be continually absorbed. The amount of lead in a fish that eats yoyo'd bait is going to kill most of them. I don't have any idea how many people yoyo or how many baits come free, so I can't guess how much of an issue it is for the overall population. Maybe I kill just as many fish by catch and release mortality as a person who yoyo's for meat, I don't know.

[tlapinski]

Originally Posted by zimmy

Absorption rates in humans are known A child in Oregon died of lead poisoning within four days of swallowing a necklace that contained lead. He had syptoms within 24 hours.
In children, up to 50% of ingested lead may be absorbed (see Grant, L.D. (2009). "Lead and compounds". In Lippmann, M.. Environmental Toxicants: Human Exposures and Their Health Effects (3rd ed.). Wiley-Interscience. ISBN 0-471-79335-3).

LD50 of lead is known for many fish, birds, etc. Given the digestive system in fish, the lead is not going to pass through the digestive tract and will stay in the fish to be continually absorbed. The amount of lead in a fish that eats yoyo'd bait is going to kill most of them. I don't have any idea how many people yoyo or how many baits come free, so I can't guess how much of an issue it is for the overall population. Maybe I kill just as many fish by catch and release mortality as a person who yoyo's for meat, I don't know.

Thanks! Now I am trying to recall if I ever ingested any split shot when I was younger figuring it would just pass right on through. Maybe the fact that I can't remember is a sign...