Swim bladder of collagen. They can be made into a strong, water-resistant glue, or used to make isinglass for the clarification of beer. In earlier times they were used to make condoms. Swim bladder disease is a common ailment in aquarium fish. A fish with swim bladder disorder can float nose down tail up, or can float to the top or sink to the bottom of the aquarium. Many anthropogenic activities, like pile driving or even Seismic wave, that could result from climate change or natural causes, can create high-intensity sound waves that cause a certain amount of damage to fish that
Dried and salted cod countries on 'meatless' Fridays and during Lent. In Middle English dried and salted cod was called "haberdine". Dried cod and the dishes made from it are known by many names around the world, many of them derived from the root "bacal-", itself of unknown origin. Explorer John Cabot reported that it was the name used by the inhabitants of Newfoundland. Some of these are: "bacalhau (salgado)" (Portuguese), "bacalao salado" (Spanish), "bakailao" (Basque), "bacallà salat i assecat" or "bacallà salat" (Catalan), μπακαλιάρος, "bakaliáros" (Greek), "Kabeljau" (German), "cabillaud" (French), "baccalà" (Italian), "bakalar" (Croatian), "bakkeljauw" (Dutch), "makayabu" (Central and East Africa), "kapakala" (Finnish).