pestilence fish in river with environmental problems. roach is killed in the shallows of pound and lakes. dead fish in the rivers

animal background bacterial because canal contaminate contaminated danger dangerous dark dead death decay dirty disaster disposal ecology environment environmental fish fly food freshwater fumble garbage global green industry killed lake lakes natural nature ocean oil pestilence poison polluted pollution polution pond pound problem problems river rivers roach rotten safe salmon sea shallows smell toxic unsafe waste wastewater water