Tranøy means "crane" and the last element is "øy" which means "island". Prior to 1909, the name was written "Tranø". The coat of arms is from modern times; they were granted on 15 May 1987. The arms are silver or white with a black Atlantic halibut "(Hippoglossus hippoglossus)" in the center. The fish is a main species of local fish, which symbolizes the importance of fishing for the local community. In addition to this, the fish played a major role in local legends, similar to the role of bears in land-based legends. The Church of Norway has one parish "(sokn)" within
Demersal fish benthic fish are denser, with negative buoyancy so they can lie on the bottom without any effort. Most demersal fish are benthopelagic. As with other bottom feeders, a mechanism to deal with substrate is often necessary. With demersal fish the sand is usually pumped out of the mouth through the gill slit. Most demersal fish exhibit a flat ventral region so as to more easily rest their body on the substrate. The exception may be the flatfish, which are laterally depressed but lie on their sides. Also, many exhibit what is termed an "inferior" mouth, which means that the mouth