what are the challenges with regard to assisting migration of long-lived species in a changing climate How can an increase in algal population size kill fish?
A) Algae clogs the gills of the fish, preventing them from breathing.
B) Algae clogs the mouths of the fish, preventing them from eating.
C) The algae use up the oxygen in the water as they photosynthesize
D) When the algae die, their decomposers use up the oxygen in the water.