Deprecated (16384): The ArrayAccess methods will be removed in 4.0.0.Use getParam(), getData() and getQuery() instead. - /home/brlfuser/public_html/src/Controller/ArtileDetailController.php, line: 150
 You can disable deprecation warnings by setting `Error.errorLevel` to `E_ALL & ~E_USER_DEPRECATED` in your config/app.php. [CORE/src/Core/functions.php, line 311]
Code Context


        trigger_error($message, E_USER_DEPRECATED);

    }
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 You can disable deprecation warnings by setting `Error.errorLevel` to `E_ALL & ~E_USER_DEPRECATED` in your config/app.php.'
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deprecationWarning - CORE/src/Core/functions.php, line 311
Cake\Http\ServerRequest::offsetGet() - CORE/src/Http/ServerRequest.php, line 2421
App\Controller\ArtileDetailController::index() - APP/Controller/ArtileDetailController.php, line 150
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Cake\Http\Runner::__invoke() - CORE/src/Http/Runner.php, line 65
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Cake\Http\Runner::__invoke() - CORE/src/Http/Runner.php, line 65
Cake\Http\Runner::run() - CORE/src/Http/Runner.php, line 51
Cake\Http\Server::run() - CORE/src/Http/Server.php, line 98

Deprecated (16384): The ArrayAccess methods will be removed in 4.0.0.Use getParam(), getData() and getQuery() instead. - /home/brlfuser/public_html/src/Controller/ArtileDetailController.php, line: 151
 You can disable deprecation warnings by setting `Error.errorLevel` to `E_ALL & ~E_USER_DEPRECATED` in your config/app.php. [CORE/src/Core/functions.php, line 311]
Code Context


        trigger_error($message, E_USER_DEPRECATED);

    }
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 You can disable deprecation warnings by setting `Error.errorLevel` to `E_ALL & ~E_USER_DEPRECATED` in your config/app.php.'
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deprecationWarning - CORE/src/Core/functions.php, line 311
Cake\Http\ServerRequest::offsetGet() - CORE/src/Http/ServerRequest.php, line 2421
App\Controller\ArtileDetailController::index() - APP/Controller/ArtileDetailController.php, line 151
Cake\Controller\Controller::invokeAction() - CORE/src/Controller/Controller.php, line 610
Cake\Http\ActionDispatcher::_invoke() - CORE/src/Http/ActionDispatcher.php, line 120
Cake\Http\ActionDispatcher::dispatch() - CORE/src/Http/ActionDispatcher.php, line 94
Cake\Http\BaseApplication::__invoke() - CORE/src/Http/BaseApplication.php, line 235
Cake\Http\Runner::__invoke() - CORE/src/Http/Runner.php, line 65
Cake\Routing\Middleware\RoutingMiddleware::__invoke() - CORE/src/Routing/Middleware/RoutingMiddleware.php, line 162
Cake\Http\Runner::__invoke() - CORE/src/Http/Runner.php, line 65
Cake\Routing\Middleware\AssetMiddleware::__invoke() - CORE/src/Routing/Middleware/AssetMiddleware.php, line 97
Cake\Http\Runner::__invoke() - CORE/src/Http/Runner.php, line 65
Cake\Error\Middleware\ErrorHandlerMiddleware::__invoke() - CORE/src/Error/Middleware/ErrorHandlerMiddleware.php, line 96
Cake\Http\Runner::__invoke() - CORE/src/Http/Runner.php, line 65
Cake\Http\Runner::run() - CORE/src/Http/Runner.php, line 51
Cake\Http\Server::run() - CORE/src/Http/Server.php, line 98

Warning (512): Unable to emit headers. Headers sent in file=/home/brlfuser/public_html/vendor/cakephp/cakephp/src/Error/Debugger.php line=853 [CORE/src/Http/ResponseEmitter.php, line 48]
Code Context
            if (Configure::read('debug')) {

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        LATEST NEWS UPDATES | Damming river water impacts fish diversity -Aathira Perinchery    </title>
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-The Hindu

Barrier-free tributaries flowing in can mitigate the effect, factoring in high-impact projects

A new study has found that dams and other barriers across rivers in the Western Ghats do affect fish species and their recovery downstream. However, barrier-free tributaries that..."/>
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-The Hindu

Barrier-free tributaries flowing in can mitigate the effect, factoring in high-impact projects

A new study has found that dams and other barriers across rivers in the Western Ghats do affect fish species and their recovery downstream. However, barrier-free tributaries that..." />
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                            <div align="justify">-The Hindu<br /><br /><em>Barrier-free tributaries flowing in can mitigate the effect, factoring in high-impact projects<br /></em><br />A new study has found that dams and other barriers across rivers in the Western Ghats do affect fish species and their recovery downstream. However, barrier-free tributaries that drain in to these rivers can help fish recover even in dammed stretches; protecting such tributaries could be crucial to maintaining fish diversity in the Western Ghats.<br /><br />The Western Ghats is home to 290 freshwater fish species, more than half of which are endemic. While other studies have shown that river barriers such as barrages and dams can affect fish diversity, there is no hard evidence to prove this in the Western Ghats.<br /><br />To test if barriers across a 72-km stretch of Karnataka's Malaprabha River in the central Western Ghats could affect fish diversity, scientists from the Asoka Trust for Research in Ecology and the Environment (ATREE) compared fish diversity both upstream and downstream of barriers.<br /><br /><em>Endemic species<br /></em><br />Studies in the upstream, barrier-free stretches confirmed the presence of 28 fish species, including the Deccan mahseer, an endemic carp. However, this number dipped immediately downstream of barriers; fish recovery was low here. But it picked up further downstream, as distance from the barrier increased. The scientists also noticed that the more the number of barriers upstream, the more diminished was fish recovery downstream.<br /><br />But there was a silver lining: as long as barrier-free tributaries merged with the Malaprabha River, fish &mdash; including endemics &mdash; recovered well, even in dammed stretches of the river. These tributaries, along with other environmental factors, increased dissolved oxygen content and reduced the hardness of water (alkalinity) in the Malaprabha, helping fish recover better. Fish diversity recovered to the highest level after a distance of 2 km downstream of barriers.<br /><br />Please <a href="http://www.thehindu.com/sci-tech/science/damming-river-water-impacts-fish-diversity/article19140868.ece?homepage=true" title="http://www.thehindu.com/sci-tech/science/damming-river-water-impacts-fish-diversity/article19140868.ece?homepage=true">click here</a> to read more. </div><div align="justify">&nbsp;</div>                                                           
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    <br><a href="http://www.thehindu.com/sci-tech/science/damming-river-water-impacts-fish-diversity/article19140868.ece?homepage=true" class="re" target="_blank">The Hindu, 24 June, 2017, http://www.thehindu.com/sci-tech/science/damming-river-water-impacts-fish-diversity/article19140868.ece?homepage=true</a><div class="clear"></div>
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    <h1 class="cat-box-title">Damming river water impacts fish diversity -Aathira Perinchery</h1>
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                            <div align="justify">-The Hindu<br /><br /><em>Barrier-free tributaries flowing in can mitigate the effect, factoring in high-impact projects<br /></em><br />A new study has found that dams and other barriers across rivers in the Western Ghats do affect fish species and their recovery downstream. However, barrier-free tributaries that drain in to these rivers can help fish recover even in dammed stretches; protecting such tributaries could be crucial to maintaining fish diversity in the Western Ghats.<br /><br />The Western Ghats is home to 290 freshwater fish species, more than half of which are endemic. While other studies have shown that river barriers such as barrages and dams can affect fish diversity, there is no hard evidence to prove this in the Western Ghats.<br /><br />To test if barriers across a 72-km stretch of Karnataka's Malaprabha River in the central Western Ghats could affect fish diversity, scientists from the Asoka Trust for Research in Ecology and the Environment (ATREE) compared fish diversity both upstream and downstream of barriers.<br /><br /><em>Endemic species<br /></em><br />Studies in the upstream, barrier-free stretches confirmed the presence of 28 fish species, including the Deccan mahseer, an endemic carp. However, this number dipped immediately downstream of barriers; fish recovery was low here. But it picked up further downstream, as distance from the barrier increased. The scientists also noticed that the more the number of barriers upstream, the more diminished was fish recovery downstream.<br /><br />But there was a silver lining: as long as barrier-free tributaries merged with the Malaprabha River, fish &mdash; including endemics &mdash; recovered well, even in dammed stretches of the river. These tributaries, along with other environmental factors, increased dissolved oxygen content and reduced the hardness of water (alkalinity) in the Malaprabha, helping fish recover better. Fish diversity recovered to the highest level after a distance of 2 km downstream of barriers.<br /><br />Please <a href="http://www.thehindu.com/sci-tech/science/damming-river-water-impacts-fish-diversity/article19140868.ece?homepage=true" title="http://www.thehindu.com/sci-tech/science/damming-river-water-impacts-fish-diversity/article19140868.ece?homepage=true">click here</a> to read more. </div><div align="justify">&nbsp;</div>                                                           
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    <br><a href="http://www.thehindu.com/sci-tech/science/damming-river-water-impacts-fish-diversity/article19140868.ece?homepage=true" class="re" target="_blank">The Hindu, 24 June, 2017, http://www.thehindu.com/sci-tech/science/damming-river-water-impacts-fish-diversity/article19140868.ece?homepage=true</a><div class="clear"></div>
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-The Hindu

Barrier-free tributaries flowing in can mitigate the effect, factoring in high-impact projects

A new study has found that dams and other barriers across rivers in the Western Ghats do affect fish species and their recovery downstream. However, barrier-free tributaries that..."/>
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-The Hindu

Barrier-free tributaries flowing in can mitigate the effect, factoring in high-impact projects

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    <h1 class="cat-box-title">Damming river water impacts fish diversity -Aathira Perinchery</h1>
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                            <div align="justify">-The Hindu<br /><br /><em>Barrier-free tributaries flowing in can mitigate the effect, factoring in high-impact projects<br /></em><br />A new study has found that dams and other barriers across rivers in the Western Ghats do affect fish species and their recovery downstream. However, barrier-free tributaries that drain in to these rivers can help fish recover even in dammed stretches; protecting such tributaries could be crucial to maintaining fish diversity in the Western Ghats.<br /><br />The Western Ghats is home to 290 freshwater fish species, more than half of which are endemic. While other studies have shown that river barriers such as barrages and dams can affect fish diversity, there is no hard evidence to prove this in the Western Ghats.<br /><br />To test if barriers across a 72-km stretch of Karnataka's Malaprabha River in the central Western Ghats could affect fish diversity, scientists from the Asoka Trust for Research in Ecology and the Environment (ATREE) compared fish diversity both upstream and downstream of barriers.<br /><br /><em>Endemic species<br /></em><br />Studies in the upstream, barrier-free stretches confirmed the presence of 28 fish species, including the Deccan mahseer, an endemic carp. However, this number dipped immediately downstream of barriers; fish recovery was low here. But it picked up further downstream, as distance from the barrier increased. The scientists also noticed that the more the number of barriers upstream, the more diminished was fish recovery downstream.<br /><br />But there was a silver lining: as long as barrier-free tributaries merged with the Malaprabha River, fish &mdash; including endemics &mdash; recovered well, even in dammed stretches of the river. These tributaries, along with other environmental factors, increased dissolved oxygen content and reduced the hardness of water (alkalinity) in the Malaprabha, helping fish recover better. Fish diversity recovered to the highest level after a distance of 2 km downstream of barriers.<br /><br />Please <a href="http://www.thehindu.com/sci-tech/science/damming-river-water-impacts-fish-diversity/article19140868.ece?homepage=true" title="http://www.thehindu.com/sci-tech/science/damming-river-water-impacts-fish-diversity/article19140868.ece?homepage=true">click here</a> to read more. </div><div align="justify">&nbsp;</div>                                                           
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    <br><a href="http://www.thehindu.com/sci-tech/science/damming-river-water-impacts-fish-diversity/article19140868.ece?homepage=true" class="re" target="_blank">The Hindu, 24 June, 2017, http://www.thehindu.com/sci-tech/science/damming-river-water-impacts-fish-diversity/article19140868.ece?homepage=true</a><div class="clear"></div>
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Home हिन्दी

Damming river water impacts fish diversity -Aathira Perinchery

Published on Jun 25, 2017   Modified on Jun 25, 2017

-The Hindu Barrier-free tributaries flowing in can mitigate the effect, factoring in high-impact projects A new study has found that dams and other barriers across rivers in the Western Ghats do affect fish species and their recovery downstream. However, barrier-free tributaries that drain in to these rivers can help fish recover even in dammed stretches; protecting such tributaries could be crucial to maintaining fish diversity in the Western Ghats. The Western Ghats is home to 290 freshwater fish species, more than half of which are endemic. While other studies have shown that river barriers such as barrages and dams can affect fish diversity, there is no hard evidence to prove this in the Western Ghats. To test if barriers across a 72-km stretch of Karnataka's Malaprabha River in the central Western Ghats could affect fish diversity, scientists from the Asoka Trust for Research in Ecology and the Environment (ATREE) compared fish diversity both upstream and downstream of barriers. Endemic species Studies in the upstream, barrier-free stretches confirmed the presence of 28 fish species, including the Deccan mahseer, an endemic carp. However, this number dipped immediately downstream of barriers; fish recovery was low here. But it picked up further downstream, as distance from the barrier increased. The scientists also noticed that the more the number of barriers upstream, the more diminished was fish recovery downstream. But there was a silver lining: as long as barrier-free tributaries merged with the Malaprabha River, fish — including endemics — recovered well, even in dammed stretches of the river. These tributaries, along with other environmental factors, increased dissolved oxygen content and reduced the hardness of water (alkalinity) in the Malaprabha, helping fish recover better. Fish diversity recovered to the highest level after a distance of 2 km downstream of barriers. Please click here to read more.

The Hindu, 24 June, 2017, http://www.thehindu.com/sci-tech/science/damming-river-water-impacts-fish-diversity/article19140868.ece?homepage=true

Tagged with: Western Ghats dams fish diversity

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