Allan Moses in which he was described as "our Grand Manan ornithologist", who "makes birds his specialty and his pastime". John Thomas Moses died in 1885. His son John Russell Moses, born in 1853, was Allan Moses's father. John Russell Moses learned taxidermy from his father and continued to build the family collection of mounted bird specimens, while prospering as a businessman. He was one of Grand Manan's major fish buyers, with a processing plant in North Head. Part of his business was selling the dried swim bladders of hake for the manufacture of isinglass. This was highly profitable, as the bladders
Swim bladder tissues. This increases the ability of sound detection. The swim bladder can radiate the pressure of sound which help increase its sensitivity and expand its hearing. In some deep sea fishes like the "Antimora", the swim bladder maybe also connected to the macula of saccule in order for the inner ear to receive a sensation from the sound pressure. In red-bellied piranha, the swimbladder may play an important role in sound production as a resonator. The sounds created by piranhas are generated through rapid contractions of the sonic muscles and is associated with the swimbladder. Swim bladders are evolutionarily closely