Complex sentence: Protesters say that banning fishing will disrupt the economy and threaten the livelihoods of individuals who rely on salmon fishing during the winters-but officials feel that it will help prevent species that are already in trouble from slipping to extinction.
Split into simpler sentences: Protesters say that banning fishing will disrupt the economy and threaten the livelihoods of individuals who rely on salmon fishing during the winters. Officials feel that it will help prevent species that are already in trouble from slipping to extinction.