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Sustainable Fish Farming?

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Is this sustainable practice? There are many cases of so called sustainable practices across the globe. But question here is how fit the fish raised in sewage for human consumption? Even if with full or partial treatment, there is a lot left in the wastewater to get accumulate in the fish due to their higher tolerance towards toxic substances. We can count many pollutants of interest e.g. detergents, PPPs, Trace Elements, Micro Pollutants, list could be exhausting. If fish for human consumption is raised in such waters, is there any study conducted to assess the edibility of the fish? Is there any database available which describes how much pollutants of concern are getting accumulated in fish and to what level they could affect human beings?

http://www.indiawaterportal.org/articles/ingenious-system-manage-sewage-kolkatas

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One thought on “Sustainable Fish Farming?

  1. I just recently visited a plant in Kentucky that is harvesting many different types of fish using old clarifiers and treated effluent water. This is relatively common practice in the southern states from what he said and a good source of income. Had the opportunity to feed the fish and they absolutely teared up the food, to the extent that the water was splashing out at us from them racing up to the top.

    Also, just saw a plant that also serves as the local pound where stray animals are brought in. It was surprising to see the cages everywhere. At first thought they were for operators on punishment!. They have a fun time feeding the animals etc and have all kinds of cool stories to share.

    Like

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