Fish. Native and non-native fish often view tadpoles as a tasty snack. Most species of pond fish are carnivores or omnivores and eat practically any creature that is a suitable size. Very small fish may be unable to eat larger tadpoles, but a fully grown goldfish can easily eat several a day.If you want to protect tadpoles, stock your pond with only small, native fish and provide plenty of hiding places in the form of aquatic plants.ish. Native and non-native fish often view tadpoles as a tasty snack. Most species of pond fish are carnivores or omnivores and eat practically any creature that is a suitable size. Very small fish may be unable to eat larger tadpoles, but a fully grown goldfish can easily eat several a day.
Fresh Water Fishing Guide | Bait. Fish Species. The Murray river plays host to many species of fish and apart from the regulars such as Murray Cod, Callop, Catfish, Bream, Macquarie, Perch and Redfin, there are a large number of assorted fish which are largely unknown.
River ecosystem. The ecosystem of a river is the river viewed as a system operating in its natural environment, and includes biotic (living) interactions amongst plants, animals and micro-organisms, as well as abiotic (nonliving) physical and chemical interactions. River ecosystems are prime examples of lotic ecosystems.