The toxicity and the concentration are directly proportional to the mortality of the fish.
It's a Symbiotic relationship
The relationship between the lungfishes and amphibians is that the lung fishes have lungs unlike amphibians who don't because they depend on water
they die
agnathostomes= Jawless fishes gnathostomes= Jawed fishes
croocidiles can stay on land on a period of time but fishes cant
M. Yaqub Javaid has written: 'The length-weight relationship and condition of seven freshwater fishes of Pakistan' -- subject(s): Fishes, Growth
in the group, all the fish are of the same species = use "fish"in the group, the fishes are of different species = use "fishes"Fish is used as plural and singular.However,Fishes is used to refer to multiple species of fish.
platypus
anadromous fishes - live in ocean reproduce in freshwater or catadromous fishes - live in freshwater but reproduce in saltwater amphidromus fishes - move between fresh and saltwater for non-reproductive reasons
They eat food smaller than them and get eaten by fishes, seals and penguins.
FISHES!
B. E. Marshall has written: 'Predicting ecology and fish yields in African reservoirs from preimpoundment physico-chemical data' -- subject(s): Fishes, Fisheries, Reservoir ecology, Effect of dams on 'Small pelagic fishes and fisheries in African inland waters =' -- subject(s): Fisheries, Freshwater fishes