One of the biggest challenges the Vadodara Municipal Corporation (VMC) is apt to look arsenic the task to desilt and dredge the Vishwamitri river, which faced monolithic flooding past year, takes off, is the relocation of astir 300 crocodiles that person made the h2o assemblage their home.
Among the 13-point precedence database of flood-mitigation measures that the civic assemblage volition instrumentality up is the river-channel modification and straightening of the meanders successful sections, the process for which is apt to coincide with the nesting play of the crocodiles.
While officials accidental it is imaginable to transportation retired the enactment arsenic the crocodiles are “hardy species” that are improbable to beryllium harmed “merely owed to shifting”, experts accent connected the request for a program B, reasoning that the “disturbance” whitethorn permission the animals, including different reptiles similar show lizards, “agitated”.
On Tuesday, the Municipal Commissioner presented earlier the Standing Committee the three-phase program of the Vishwamitri project, including contiguous mitigation measures to beryllium undertaken earlier the upcoming monsoon arsenic good arsenic the semipermanent activities to rejuvenate the river. The VMC has besides convened a peculiar General Board gathering with its corporators astatine the Sayaji Nagar Gruh connected Friday successful bid to showcase the presumption and “seek opinions” earlier commencing the much-anticipated task that could assistance trim the hazard of yearly floods successful the city.
Even arsenic the VMC has received biology clearance, it is awaiting effect from the Wildlife Department to a connection to let the civic assemblage to “shift crocodiles” from the Vishwamitri for the projected activity.
Speaking to The Indian Express, Agneeshwar Vyas, in-charge Vadodara territory Deputy Conservator of Forests, said that the connection of the VMC seeking the support to displacement crocodiles has been forwarded to the State Wildlife Board done the PCCF (Wildlife) and onward to the National Wildlife Board since crocodiles are a Schedule-I taxon of the Wildlife (Protection) Act of 1972.
Vyas said that though the Vishwamitri stream is not successful the jurisdiction of the wood section and, therefore, the civic assemblage does not request support to statesman enactment connected the project, relocation of crocodiles cannot beryllium done without the support of the National Wildlife Board. Vyas said, “The wood section volition beryllium progressive lone if determination is immoderate imaginable menace to the crocodiles. If the VMC feels that it tin transportation retired the enactment successful sections without really shifting the crocodiles, they bash not request immoderate permission. In lawsuit a relocation of crocodiles is planned, the VMC volition execute the aforesaid nether supervision of the wood department.”
Vyas said that 1 of the recommendations made by the wood section is that the VMC indispensable permission definite areas on the stream people undisturbed to let the mugger (Crocodyluspalustris) to nest. The stream agelong successful the metropolis limits had adjacent to 300 crocodiles arsenic of the 2021 census, portion the full agelong could person astatine slightest 1100 muggers.
Vyas said, “The VMC has plans to implicit the full enactment earlier May, but if the enactment extends beyond their estimated clip period, it would coincide with the nesting period, erstwhile pistillate crocodiles besides crook aggressive. We person recommended that immoderate parts of the earthy rivercourse, wherever determination are mounds, indispensable beryllium near undisturbed to let nesting. If the civic assemblage plans to displacement crocodiles successful phases, we tin accommodate them successful the rescue centre, wherever much than 50 crocodiles had been kept adjacent during the flood astatine 1 time. We tin besides relocate immoderate into the Sayajibaug zoo oregon make impermanent shelters.”
Vyas said that the instauration of impermanent shelters is not hard arsenic it “requires a fenced enclosure with a h2o pond” though the wood section had “previously identified” areas on the stream people that are known to beryllium nesting spots.
Vyas added that the h2o body, which besides has a important colonisation of the Schedule-I Indian Softshell turtles, can, however, beryllium desilted without disturbing the earthy habitat. “It is imaginable to transportation retired the enactment successful sections arsenic crocodiles tin disperse successful the agelong route… The crocodiles are hardy taxon and not delicate truthful they are improbable to beryllium harmed simply owed to shifting. Even then, we person sought guidelines from the Principal Chief Conservator of Forests (PCCF). As acold arsenic the turtles are concerned, they are not a unsafe taxon and are prone to people displacement and drift away. The stream has its earthy heavy and shallow pockets and turtles are astir apt to find their way,” Vyas said.
‘Need to person a program B’
Dr Ranjitsinh Devkar, Assistant Professor of Zoology astatine MS University, said that portion the absorption of the authorities has been lone connected the crocodiles, the Vishwamitri meanders are location to different taxon of animals specified arsenic the show lizards, Indian porcupines, and cobra. “As a researcher, I would accidental that altering the meanders would disturb the earthy situation of galore taxon of animals similar show lizards, Indian flapshell turtles, Indian cobra and Indian porcupines, which are a Schedule II species. The disturbance, whether by alteration of the people oregon by the specified beingness of machinery, would besides mean that these animals and reptiles would beryllium agitated to determination into the quality settlement. The authorities request to person program B to rescue the animals arsenic needed.”
Stating that the task of relocating and rescuing animals volition necessitate aggregate levels of cooperation, particularly from citizens, Devkar added, “Crocodiles are highly territorial reptiles and volition effort to find their mode backmost to the spot wherever they person been removed from. Therefore, it is indispensable that immoderate relocation should beryllium done successful a technological mode with tagging and marking the muggers to merchandise them backmost into their ain areas. Although they look robust, reptiles, too, person their ain ways of showing stress. All surviving beings, including plants, travel nether accent erstwhile relocated from their archetypal place. The accent of a reptile is manageable and therefore, technological ways should beryllium utilized to execute the project.”
In the connection of the VMC, enactment distant earlier the Standing Committee connected Tuesday and for deliberation of the General Board connected January 24, overmuch accent has been placed connected the 13-point program to mitigate floods successful the upcoming monsoon by expanding the carrying capableness of the stream arsenic adjacent to its archetypal size of 1,100 cumecs (38,800 cusecs).
The flood-mitigation plan
The connection states that the works to beryllium accomplished earlier onset of monsoon this twelvemonth see the modification of the stream channel, on with straightening the meandering of Vishwamitri “at immoderate places wherever authorities onshore is available”. The VMC has projected to temporarily rehabilitate crocodiles successful these portions. The civic assemblage has projected the straightening of the confluence constituent of the Vishwamitri with Dadhar stream too Jambuva river.
The VMC besides plans to conception an further spillway of Ajwa Dam with vertical gates connected the downstream of the existing weir. Along with this, the crest level of Ajwa volition beryllium reduced from 214 feet to 206 feet. The civic assemblage plans to behaviour dredging on the periphery of Ajwa and Pratappura Sarovar erstwhile the h2o levels trim during summer.
The civic assemblage has projected the operation of a caller buffer pond with retention adjacent Kotambi and Bhaniyara. The projected works see expanding the capableness of 3 ponds by dredging successful Dhanora, Vadadala and Haripura. The absorption is besides connected the existing web of implicit 42 large and insignificant kaans (storm h2o drain) successful the city, including the 2.5-kilometre Bhukhi kaans with a caller transmission diversion of 3 kilometres to divert the h2o on with a 5-kilometre transmission diversion for the Ruparel kaans aft dredging and resectioning to summation the carrying capacity. An further kaans is projected to beryllium constructed successful the Eastern portion of NH-48 to forestall the h2o from flowing into the metropolis that causes flooding.
Installation of flood-forecasting informing systems and piezometers on the magnitude of Ajwa Dam arsenic good arsenic heavy recharge by rainwater harvesting successful the metropolis has besides been proposed.
Municipal Commissioner Dilip Rana said connected Tuesday, “The Committee led by BN Navalawala has made recommendations for the Vishwamitri flood mitigation. We person presented the enactment program for the implementation of the aforesaid — the astir important portion is dredging and desilting. We person created a elaborate enactment program and presented it to the Standing Committee, including an estimation of however overmuch machinery would beryllium needed. We are besides putting it earlier a peculiar General Board to bring consensus…”
Rana added, “We are looking astatine an enactment program to spot however we tin divert the h2o that comes into the metropolis from peripheral areas by creating sections oregon diverting water. Rainwater harvesting, tempest h2o drains and diversion of kaans web is simply a priority. The assorted different channels that bring h2o to Vishwamitri volition besides beryllium dredged and carrying capableness increased.”
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