Vegetable  and  Fish  Integra1on  through  Aquaponics   System  for  Climate  Change  Adapta1on M. A. Salam PhD Professor Department of Aquaculture, Bangladesh Agricultural University, Mymensingh [email protected] Aquaponics for Climate Change Adaptation 08-11 January 2015 Layout  of  my  presenta1on   Ø  Overview of Aquaponics System   Ø  Benefit of Aquaponics Ø  Objectives Ø  Methodology Ø  How Aquaponics works? Ø  Results Ø  Sustainability and maximize positive impact Ø  Drawbacks of Aquaponics Ø  Summary   Aquaponics for Climate Change Adaptation 08-11 January 2015 Overview of Aquaponics System v  Aquaponics is a soilless organic food production system that uses fish to provide fertilizer to the plants v  Closed- loop symbiotic relationship exist between fish and plants v  The plants filter waste water and clean water send to the fish tank again v  90% less water required than conventional agriculture v  It produces organic food which is absolutely delicious v  Food can be grown round the year v  It is well suited for urban and peri-urban farming   Aquaponics for Climate Change Adaptation 08-11 January 2015 Benefits  of  Aquaponics   Ø  2  crops  from  1  input   Ø  Nutrient  management/  effluent   mi9ga9on     Ø  Plants  grow  2x  as  fast     Ø  Toxic  chemicals  free   Ø  90%  Less  water  consump9on     Ø  Prolonged  individual  plant  life     Ø  Less  space  required  per  plant     Ø  Ver9cal  produc9on  allows  more   efficient  use  of  space     Ø  Year  round  produc9on  possible     BAU aquaponics water spinach production Aquaponics for Climate Change Adaptation 08-11 January 2015 Aquaponics in Gaza, Palestine "   UN  has  installed  aquaponics  system  in  Gaza     for  fish  and  vegetable  production  with  the   inhabitants  who  don't  have  supply  from  out   side  due  to  Israel's  blockage     Aquaponics for Climate Change Adaptation 08-11 January 2015 Objec9ves   v Feasibility study to grow fish and vegetable in three aquaponics systems to reduce pressure on water and land and utilise the backyard as well as homestead areas in the city v To introduce aquaponics system to all the city dwellers and bring them in production activities who are otherwise only consumers and v To enhance high tech farming education to address the environmental pollution and climate change induced threat in agriculture sector Aquaponics for Climate Change Adaptation 08-11 January 2015 Methodology     "   The  experiment  conducted  in  the  Department  of  Aquaculture,   Bangladesh  Agricultural  University  (BAU),  Mymensingh,  during   March  to  September,  2014   "   Media  based  system  for  taro  and  tomato  and  nutrient  film   technique  for  water  spinach  were  tested  to  see  the   effec9veness  of  nutrient  trapping  and  vegetable  grown  in  lab   and  field  condi9ons     "   The  healthy  taro,  tomato  and  spinach  seedlings  planted  in   each  system    and  fish  release  in  the  tank   "   Good  quality  Tilapia  fingerlings  used  as  experimental  fish  in  all   the  systems  for  its  hardy  nature  and  good  taste   "   Fish    fed  pellet  feed  twice  daily  @5%  of  their  body  weight   "   Fish  tank  water  irrigated  to  the  system  which  then  return  to   the  fish  tank  again     "   The  denitrifying  bacteria  convert  the  wastes  into  nutrients  for   vegetables  and  made  water  clean  for  fish  before  return  to  the   tank   Aquaponics for Climate Change Adaptation 08-11 January 2015 Methodology  (contd.)   "   water  quality  parameters  was  measured  periodically   "   Morphological  data  collected  at  15  days  intervals  from   planting  to  harvesting  date   "   Plant  height;  No  of  branches  counted  and  diameter  of   plants  and  stem  number  recorded     "   Leaf  area  measured  with  a  portable  leaf  area  meter   (Model  LI-­‐3100,  Lincoln,  NE-­‐68504,  USA)     "   Biomass  content  of  taro  plants  measured  at  final  harvest   "   Biochemical  elements  of  growing  media  measured   monthly  (Ca,  Mg,  P,  K,  S  and  N%)     "   Fish  sampled  fortnightly  and  growth,  survival  and   production  calculated  at  the  end  of  the  experiment   "   Data  analyzed  using  Excel   Aquaponics for Climate Change Adaptation 08-11 January 2015 How  Aquaponics  works?   Aquaponics for Climate Change Adaptation 35 Taro  pH Results   30 Taro  Do Ø  25 Water  quality  parameters  of  taro,   Taro  Temp tomato  and  water  spinach  in  RAS  were   20 Tomato    pH similar  except  temperature  in  tomato   Tomato    DO Ø  15 The  temperature  in  tomato  RAS  was   Tomato    Temp significantly  different  from  the  other   10 two  aquaponics  systems  because  the   Water  spinach  pH experiment  was  in  open  field  in    winter   5 Water  spinach  Do 0 Water  spinach  Temp 1 2 3 4 5 6 7 8 Aquaponics for Climate Change Adaptation 08-11 January 2015