Response:
Both living and non-living factors influence the survival and reproductive success of fish within an ecosystem.
The presence of various predators for a specific type of fish will affect its survival and breeding rates. More predators can threaten the fish's ability to thrive within that ecosystem, leading to potential predation.
The quantity of prey also impacts fish survival; fewer prey means greater competition for resources among species.
Non-living variables, like salt concentration in water, can also affect fish survival and reproduction. A species not adapted to saline environments could be wiped out due to rising salt levels in its habitat.
Additionally, human actions, such as dumping waste into water bodies or allowing fertilizers to drain into aquatic ecosystems, can severely harm the survival and breeding rates of certain aquatic species.
Explanation:
