Hotter oceans may deplete commercial fish stock: study
With oceans warming over much larger spatial scale, marine ecosystems are under threat says a study By Saiqua Sultan Bangalore, January 18, 2018: Rising sea temperatures could harm commercial fish stocks by adversely affecting their source of food, a new study has found. University of Adelaide scientists have demonstrated how increased temperatures reduce the vital flow of energy from the primary food producers at the bottom like algae, to intermediate herbivorous consumers to predators at the top of marine food webs. Hadayet Ullah, a PHD student who conducted the study said the climate change led to expansion of cyanobacteria (small blue-green algae) which is unpalatable and not consumed by herbivores. However, there are scientists who adopt another view to the claims made by the study. Dr. D. Nagesh Kumar, Chairman, Centre for Earth Sciences says, “There is comfortable temperature zone for most of the fish to survive. Th...