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http://indianaquariumhobbyist.com/community/ :: View topic - Habitat Study trip to WASI cottage lake : Cauvery basin
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Habitat Study trip to WASI cottage lake : Cauvery basin
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valluvar
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PostPosted: Tue Aug 27, 2013 1:32 pm Post subject: Habitat Study trip to WASI cottage lake : Cauvery basin Reply with quote

 
 
 The  biotope  :  Smallish  (about  2  hectare)  ┬álake  fed  by  the  cauvery  at  Malavalli  taluk.  Maintained  as  a  Protected  area  by  WASI  (Wild  life  association  of  south  india).  Only  catch  and  release  fishing  is  allowed.
 
 
 
 Derek  training  Nithi  in  landing  techniques  
 
 
 
 The  setup  was  for  carp  fishing  using  method  feeders  and  specially  developed  Catla  bait.  Earthworms  were  also  used,  mainly  for  catfish  and  tilapia.  About  6  -7  rigs  were  deployed  at  all  times  with  2  -3  people  watching.
 
 
 
 The  first  fish  i  caught  (in  life,  with  a  hook)  was  a  Tor  Kudhree  (deccan  mahaseer)
 
 
 
 Landing  a  big  one
 
 
 
 De-hooking  in  the  landing  net
 
 
 
 Niti's  first  fish  was  a  Labeo  Rohita  (Rohu),  maybe  a  KG  or  so
 
 
 
 Safely  released
 
 
 
 Look  at  the  size  of  that  Oreochromis  Niloticus  (Nile  tilapia).  These  invasive  fish  dont  get  released.  By  law  they  have  to  be  destroyed.
 
 
 
 Derek  with  a  large  Catla  Catla  (Catla  or  indian  carp)
 
 
 
 The  correct  release  procedure
 
 
 
 
 
 Junior  Catla  catcher
 
 
 
 Not  to  be  outdone,  your's  truly.
 
 
 
 the  lone  Labeo  Dero  (Kalabans)  caught.  Beautiful  male
 
 
 
 Derek's  all  time  record  Labeo  Rohita  (7.2  Kg)
 
 
 
 Maya  bringing  in  a  Catla  Catla
 
 
 
 This  is  how  we  'release'  O.Niloticus
 
 
 
 Chitala  chitala  (clown  knife  fish)  caught  by  derek
 
 
 
 Night  fishing  for  catfish.  Mystus  Seengtee  (hat  tip  @shovelnose  for  correcting  the  id)  .Plentiful  at  WASi  cottage,  goes  to  show  how  protected  areas  help.
 
 
 
 huge  Cyprinus  carpio  (common  carp)  derek  caught.  Beautiful  colour
 
 
 
 Cyprinus  carpio  front  view
 
 
 
 Correct  release  is  important  as  these  fish  are  great  fighters  and  should  be  released  only  when  they  can  swim  away
 
 
 
 
 
 more  Cyprinus  carpio
 
 
 
 Gone  in  30  seconds
 
 
 
 Dawn's  Labeo  Rohita
 
 
 
 The  master  in  his  element
 
 
 
 Barbodes  carnaticus  (carnatic  carp)  small  one
 
 
 
 
 Front  view  of  Barbodes  carnaticus
 
 
 
 Mastacembelidae  sp.  Needs  to  be  id'd.
 
 
 
 
 Mystus  Seengtee   caught  at  twilight
 
 
 
 Mystus  Seengtee  Front  view
 
 All  in  all  it  was  a  great  2  days  spent  in  sylvan  surroundings.  Lots  of  birds  were  also  sighted  and  one  lone  Aplochelius  blockii.  Water  was  murky  so,  visibility  was  poor.


Last edited by valluvar on Wed Aug 28, 2013 10:45 am; edited 2 times in total
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apcmge
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PostPosted: Tue Aug 27, 2013 3:07 pm Post subject: Re: Habitat Study trip to WASI cottage lake : Cauvery basin Reply with quote

 Wow...This  lake  is  brimming  with  fishes.
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valluvar
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PostPosted: Tue Aug 27, 2013 3:14 pm Post subject: Re: Habitat Study trip to WASI cottage lake : Cauvery basin Reply with quote

 Yes  Sanjay.  Its  a  PA  so  no  extraction,  only  catch  and  release.  We  caught  more  than  30  odd  fish  in  2  days.  
 
 shiv
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abhis9
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PostPosted: Tue Aug 27, 2013 4:23 pm Post subject: Re: Habitat Study trip to WASI cottage lake : Cauvery basin Reply with quote

 Wow  ...lovely  experience  Shiv...
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Snakehead
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PostPosted: Tue Aug 27, 2013 6:29 pm Post subject: Re: Habitat Study trip to WASI cottage lake : Cauvery basin Reply with quote

 Nice,thanks  for  sharing.
 
 i  guess  the  water  is  still  a  bit  muddy  to  observe  water  plants.its  always  special  to  be  there.
 Did  u  get  to  see  any  croc's  &  Otter's   Very Happy
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Sunny_2K_99
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PostPosted: Tue Aug 27, 2013 6:29 pm Post subject: Re: Habitat Study trip to WASI cottage lake : Cauvery basin Reply with quote

 Thumb Up
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ckpradip
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PostPosted: Tue Aug 27, 2013 7:29 pm Post subject: Re: Habitat Study trip to WASI cottage lake : Cauvery basin Reply with quote

 Nice  Snaps.  Well  documented.
 Good  Information.  Thumbs Up
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Eureca
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PostPosted: Tue Aug 27, 2013 8:30 pm Post subject: Re: Habitat Study trip to WASI cottage lake : Cauvery basin Reply with quote

 Very  well  written  and  photographed  .
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PostPosted: Wed Aug 28, 2013 10:31 am Post subject: Re: Habitat Study trip to WASI cottage lake : Cauvery basin Reply with quote

 The  catfish  are  all  Mystus  seengtee.  Mystus  bleekeri    is  on  the  IUCN  Red  List  but  it  is  a  Least  Concern  species.
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valluvar
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PostPosted: Wed Aug 28, 2013 10:59 am Post subject: Re: Habitat Study trip to WASI cottage lake : Cauvery basin Reply with quote

 Thanks  @abhis9,  @eureca,  @ckpradip,  @  sunny.  
 @  snakehead  :  There  is  a  resident  crocodile  (Crocodylus  palustris)  in  the  lake  that  has  been  around  there  for  a  while.  We  did  see  it  cruising  around.
   I  think  this  guy  is  trapped  as  there  is  a  weir  across  the  channel  that  enters  the  lake.  About  4  feet  long.
 @balaji  :  Much  Obliged.  Can  you  please  elaborate  on  the  key  differences  ?
 
 shiv
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abhis9
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PostPosted: Wed Aug 28, 2013 11:02 am Post subject: Re: Habitat Study trip to WASI cottage lake : Cauvery basin Reply with quote

 Just  a  query  :  Why  Oreochromis  Niloticus  (Nile  tilapia)  should  be  destroyed  !!  Any  specific  reason  !!
 
 According  to  my  experience  in  Bengal,  people  say  most  danger  fish  is  Bowal  Fish  (don't  know  the  scintific  name).  They  
 eat  everything  and  all  types  of  fishes.  Even  a  deadbody  also.  Though  they  are  tasty  but  people  avoid  them  to  keep                                                                                                     them  in  ponds  or  lakes.
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valluvar
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PostPosted: Wed Aug 28, 2013 11:16 am Post subject: Re: Habitat Study trip to WASI cottage lake : Cauvery basin Reply with quote

 @  abhis  O.Niloticus  is  a  african  mouth  brooding  cichlid  that  was  introduced  into  indian  water  systems  as  a  food  fish.
 However  it  is  a  voracious  predator  and  displaces  native  species  in  all  habitats  introduced.  Due  to  the  fry  care  shown
 by  cichlids  they  tend  to  out  compete  some  native  species.  Same  with  Clarias  gariepinus  -  african  catfish.  In  Protected  
 areas  we  are  asked  to  leave  them  out  if  caught  and  not  put  them  back.  
 The  Bowal  or  Boal  Mach  that  you  refer  to  is  actually  the   Wallago  Attu
 which  while  dangerous  is  a  native.  In  fact  due  to  over  fishing  this  species  is  classified  as  NT  (Near  Threatened)
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valluvar
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PostPosted: Wed Aug 28, 2013 11:20 am Post subject: Re: Habitat Study trip to WASI cottage lake : Cauvery basin Reply with quote

 @  abhis  in  fact  i  request  you  to  refrain  from  eating  W.Attu  and  spread  the  information  among  the  people  of  bengal.  A  study  done  
 in  the  Sunderbhans  shows  a  99%  decline  in  the  species.  
 
 shiv
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PostPosted: Wed Aug 28, 2013 11:45 am Post subject: Re: Habitat Study trip to WASI cottage lake : Cauvery basin Reply with quote

 Hi  Shiv,
 
 Thanks  for  the  information.  Personally  I  don't  eat  W.Attu.  But  in  Bengal  people  love  to  keep  O.Niloticus  or  Tilapia
 in  their  ponds.  But  not  the  Boal  Mach  aka  Wallago  Attu.  They  think  W.Attu  more  danger  than  O.Niloticus.
 
 Still  I  will  try  my  best  to  convey  the  message  to  my  known  circle.  I  was  also  unaware  that  this  species  is  classified  
 as  NT  (Near  Threatened).  
 
 Thanks  again.
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PostPosted: Wed Aug 28, 2013 11:53 am Post subject: Re: Habitat Study trip to WASI cottage lake : Cauvery basin Reply with quote

 The  easiest  way  to  distinguish  M.bleekeri  from  M.cavasius  is  the  presence  of  multiple  stripes  in  M.bleekeri  while  M.seengtee  usually  sports  only  a  mid  lateral  stripe.  There  are  a  few  other  external  features  that  can  also  be  used  to  differentiate  these  two  species.
 
 
 
 
 Mystus  bleekeri,  West  Bengal  (Type  Locality)
 
 
 
 
 
 Mystus  seengtee,  Karnataka
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