New Developement for fisheries to contend with

[tallieho]

So it appears that the City of Calgary & Edmonton .Have carried there co vid testing ,to now include .Drugs found in our waste water.This ww generally dumps into our Bow & NS.The video talks about the types of drugs.Take note these drugs,are known to be used to terminate animals.

https://calgary.ctvnews.ca/video?clipId=2756967

Makes this old fart wonder,if its possible these drugs are killing our fish..

[goldscud]

The chemical cocktail getting dumped in the river is growing every year. From prescription drugs (birth control, antidepressants, etc) and now all the opioids and the tranquilizer xylazine, the list keeps growing. I think at present the concentrations are too low to cause fish mortality, but they will be having an effect. Makes one wonder about wet wading and swimming in the future

[Marty S]

Affecting reproductive systems likely come long before actual fish mortality. I hear the little burbot lings going extinct in the bow system and irrigation waters it feeds???

Its a good thing they dump all that sewage into the river instead of directly pumping/irrigating with it on land, so we dont have so many if the dastardly little things.

Maybe Castrudeau can fix that????

[WayneChristie]

maybe if all the potheads in the cities toss their roaches into the rivers too the fish down at my end would be a lot hungrier and easier to catch?

[fish99]

Originally Posted by WayneChristie

maybe if all the potheads in the cities toss their roaches into the rivers too the fish down at my end would be a lot hungrier and easier to catch?

you using chips as bait now.

[Don Andersen]

From a CDN Govt report on sewage effluent.


There are a variety of chemicals commonly found in municipal effluents that are capable of binding to the hormone receptors and causing endocrine disruption. These include alkylphenol polyethoxylates and their metabolites, which have been shown to cause vitellogenin induction, intersex, and impair growth and gonad development. Natural and synthetic estrogens (estradiol, estrone, ethinyl estradiol) have recently been identified in sewage effluents at concentrations that can cause vitellogenin induction and other estrogenic effects in fish. A recent survey in Canada suggests that both alkylphenolics and estrogens are common contaminants in final effluents. Although some chemical characterization of effluents has recently been undertaken in Canada, the extent and significance of estrogenic effects attributable to sewage effluents has not yet been established.

[Pickle]

Alberta must be paying for these studies? I wonder if they monitor rural Alberta as well?