Fish reproductive phenology

  • Developed methodology for assessing the reproductive vulnerability of fishes which can predict the spawning success in response to changing climate
  • Benchmarked novel parameters: Threshold GSI, Kspawn 50 (pre-spawning fitness), Girthspawn 50 and associated climate optima for more than 10 fish species
  • Thermal and precipitation preferendum have been identified alongside the threshold values of important limnological parameters
  • This can predict the spawning success of a species in the changing climate
  • Based on the study, species were categorized as resilient and climate sensitive
  • Climate resilient: Mystus cavasius, Eutropiichthys vacha, Channa punctata, Puntius sophore, Amblypharyngodon mola
  • Climate sensitive- Gudusia chapra, Nandus nandus