Why do salt water fish have larger scales than freshwater ones?



  1. 0 Votes

    I’ve never read anything that confirms that saltwater fish typically have larger scales than freshwater fish, but that could be.  Freshwater fish and saltwater fish live in every different environments, so each has adapted to survive in this environment.   Scales serve to protect the fish and help them move within the water and its current.  Fish that live in fast flowing waters or need to move quickly have smaller scales while fish that live in calmer waters have larger scales.  

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