Environmental issues with salmon female by 5%, or 104 eggs. If a salmon enters a gillnet, but manages to escape, it often sustains injuries. These injuries can lead to a lower degree of reproductive success. A study aimed at quantifying mortality of Bristol Bay sockeye salmon due to gillnet-related injuries found that 11 – 29% of sockeye sustained fishery-related injuries attributable to gillnets, 51% of those fish were expected to not reproduce. The Columbia River salmon population is now less than 3% of what it was when Lewis and Clark arrived at the river. Salmon canneries established by settlers beginning in 1866 had a
Fish drum Fish drum The fish drum () is a Chinese percussion instrument. The name actually designates two rather different instruments, a membranophone and an idiophone. The membranophone fish drum is the symbol of Elder Zhang Guo, one of the Eight Immortals. This drum is a long and slender piece of bamboo with a dried fish skin stretched over one end. Two smaller pieces of bamboo resembling golf clubs are used as Castanets. There is also the idiophone, which is also called a wooden fish. This type of fish drum is used to accompany performers of "changben" or Chinese narrative ballads. They