So, a fish swimming in 60 degrees water would have a body temperature of roughly 60 degrees.
However, there are some exceptions!
* Some fish species are "warm-blooded" (endothermic) and can raise their body temperature above the water temperature. This is particularly common in larger, more active fish like tuna and sharks.
* The fish's body temperature can fluctuate slightly depending on its activity level. A fish that is actively swimming will be slightly warmer than a fish that is resting.
So, while a fish's temperature will usually be close to the water temperature, there are some factors that can cause variations.