Do fish contribute to global warming?

[fiveworlds]

Farming animals such as cows can lead to global warming however do fish contribute to global warming?

[swansont]

Farming animals such as cows can lead to global warming however do fish contribute to global warming?

 

 

Cows contribute because we clear land, raise large populations of them and feed them in a way that produces more methane than their normal diet. What is happening to fish populations? Do fish eat food that produces methane?

[StringJunky]

It seems that fish, as well as other organisms before them in the aquatic food chain, are methane sinks. Thinking about it: being a distinct environment, methane would be an ever present gas, due to constant biodegradation, and organisms will have evolved and filled ecological niches within it to keep it below toxic levels to collectively create a homeostatic environment.

 

 

....Another cycle that is continuously being studied is the production of methane gas which heavily lies on carbon material in oxygen-free environments. Studies have already been released by David Bastviken which show that the measure of methane gas that is produced by lakes is heavily underestimated in the existing calculations of the global greenhouse gas emissions.

 

But regardless of that fact, the new studies were conducted by Angela Sanseverino who studied a combination of two biomarkers which now shows that methane is a crucial part of life systems found in lakes and which can be returned to the food chain.

“It is like opening a black box. It turns out that carbon, which we thought was lost forever, can return to the food chain.”

Methane is consumed by bacteria which is then eaten by zooplankton and other small organisms which is then eaten by fish. This means that in the deepest depths of lakes, carbon, the very basis of all life forms, in the organic compound of methane is turned into fish food. These findings were presented in a one of a kind study that contradicts previous perceptions of lakebed sediment methane stores being lost in the food chain.

Methane Cycle

“This is the first time we can say with any great certainty that methane from the lake bed has ended up in fish tissue via the food chain”, says David Bastviken. “Isotopic studies have been carried out in the past, but they have been more uncertain as they only related to one biomarker. We now have two independent biomarkers presenting the same results. This considerably increases the certainty of our findings.”

https://greenbuildingelements.com/2012/09/06/methane-is-fish-food/

[Sensei]

Cows contribute because we clear land, raise large populations of them and feed them in a way that produces more methane than their normal diet.

Is there a study confirming your hypothesis that wild living cow is producing less methane than the one on the farm.. ?

How will you measure methane gas produced by wild animal.. ?

 

Farms can be designed to capture produced methane..

 

Farming animals such as cows can lead to global warming however do fish contribute to global warming?

Food for fishes on farms is produced on land mostly. Mass production of fishes would require a lot of devices burning oil/fuel to make it (unless they will be electric and energy will be from the Sun or other renewable energy source).

Found by google and translated: "Carps and ropes living in ponds feed on cereals: wheat, barley and rye and ready-to-feed."

(you have to analyze entire production, distribution, and production of fertilizers)

Edited June 30, 2017 by Sensei

[swansont]

Is there a study confirming your hypothesis that wild living cow is producing less methane than the one on the farm.. ?

 

 

The article didn't link to a study, but the claim was that cows eating grasses sprayed with fertilizer produced more methane.