Imposter555 wrote: ↑Fri Dec 22, 2017 2:32 pm if they were so concerned about this fish migration and not some other extremely profit making enterprise elsewhere that these hydro dams would impact on

What extremely profit making enterprise elsewhere [sic] are you referring to here ?

taabarang wrote: ↑Fri Dec 22, 2017 2:48 pm Not a very realistic approach for the Mekong catfish which can weigh up to ,350 kilos.

last i checked they transfer x million kg ships thru a series of locks in the panama canal. so you just need a better designed, spend more money on the fish ladder

Anchor Moy wrote: ↑Fri Dec 22, 2017 2:52 pm

Imposter555 wrote: ↑Fri Dec 22, 2017 2:32 pm if they were so concerned about this fish migration and not some other extremely profit making enterprise elsewhere that these hydro dams would impact on

What extremely profit making enterprise elsewhere [sic] are you referring to here ?

He's making it up as he goes along!

Anchor Moy wrote: ↑Fri Dec 22, 2017 2:52 pm

Imposter555 wrote: ↑Fri Dec 22, 2017 2:32 pm if they were so concerned about this fish migration and not some other extremely profit making enterprise elsewhere that these hydro dams would impact on

What extremely profit making enterprise elsewhere [sic] are you referring to here ?

sorry but i dont answer legitimate question

Imposter555 wrote: ↑Fri Dec 22, 2017 3:02 pm

taabarang wrote: ↑Fri Dec 22, 2017 2:48 pm Not a very realistic approach for the Mekong catfish which can weigh up to ,350 kilos.

last i checked they transfer x million kg ships thru a series of locks in the panama canal. so you just need a better designed, spend more money on the fish ladder

Research since the mid 1990s shows that many species here cannot and do not use fish ladders. There's a number of endemic species that completely disappeared after the Pak Mun dam was constructed in Thailand in 1994.

Picking them up and moving them upstream might work, but doubtful that's a plan being integrated into the damns coming online. Once they spawn, those fishies have to come back down too. The ladders only go up. The way downstream is via hydro electric turbine. I doubt many of the existing or proposed damn are terribly fish friendly.

Imposter555 wrote: ↑Fri Dec 22, 2017 3:02 pm

taabarang wrote: ↑Fri Dec 22, 2017 2:48 pm Not a very realistic approach for the Mekong catfish which can weigh up to ,350 kilos.

last i checked they transfer x million kg ships thru a series of locks in the panama canal. so you just need a better designed, spend more money on the fish ladder

As I mentioned before they don't work: Fish Ladders and Elevators Not Working

So what's the solution? The authors, who publish their work online this month in Conservation Letters, suggest it's time to admit failure that the fish passages they studied aren't working. They make a case for dam removal in these areas and point to Maine's experience removing two dams from the Penobscot River. In that case, the power company was allowed to increase generating power at other, less ecologically important sites. Removing mainstem dams can allow free access to lower tributaries and their spawning habitats, while dams farther upstream can keep producing electricity (while they limit access to upper tributaries and ancestral habitat).

Brown knows that removing dams will be an uphill battle, so to speak. "I hear this a lot: 'These dams will never come out,' " he says. "Maybe our paper will change that." http://www.sciencemag.org/news/2013/01/ ... ot-working

Added to witch dams arn't that cost effective and climate change is projected to make them even less so.

Economic Impacts of Dams

Large dams have long been promoted as providing "cheap" hydropower and water supply. Today, we know better. The costs and poor performance of large dams were in the past largely concealed by the public agencies that built and operated the projects. Dams consistently cost more and take longer to build than projected. In general, the larger a hydro project is, the larger its construction cost overrun in percentage terms. The true risks and costs of dams are being forced into the open due to increasing public scrutiny and attempts to attract private investors to existing and new projects.

The World Commission on Dams found that on average, large dams have been at best only marginally economically viable. The average cost overrun of dams is 56%. This means that when a dam is predicted to cost $1 billion, it ends up costing $1.56 billion. In too many cases, the burden of uneconomic dams is shouldered by a nation's citizens, while the project builders walk away with a tidy profit and another project to add to their portfolio. Given that most of the world's large dams are now being built in the world's poorest nations, this is a burden they can ill afford.https://www.internationalrivers.org/eco ... ts-of-dams

Hydropower and the Challenge of Climate Change

But climate change itself is threatening the viability of big hydro projects today and tomorrow. Shifting rainfall patterns and chronic droughts are shrinking river flows and draining lakes, leading to decreased power generation at hydroelectric facilities. http://foreignpolicy.com/2015/03/16/hyd ... te-change/

**** disclosure: Imposter555 is sponsored and lucratively funded by the Nuclear Energy Advancement Initiative (NEAI) among many others...

Username Taken wrote: ↑Fri Dec 22, 2017 3:54 pm Gee, we seem to have quite a few wackos posting on this forum nowadays.

I resemble that remark. However to consider building locks on a river that joins another river, compared to one that links two oceans does not seem possible let alone economically feasible.

Imposter555 wrote: ↑Fri Dec 22, 2017 3:04 pm

Anchor Moy wrote: ↑Fri Dec 22, 2017 2:52 pm

Imposter555 wrote: ↑Fri Dec 22, 2017 2:32 pm if they were so concerned about this fish migration and not some other extremely profit making enterprise elsewhere that these hydro dams would impact on

What extremely profit making enterprise elsewhere [sic] are you referring to here ?

sorry but i dont answer dumb stupid question

It is a legitimate question. Who's making the profit here? Don't be angry.

And what have you got against fish ?