Can Electrofishing Select Certain Size Fish in the USA

Is electrofishing harmful to fish? Although often not externally obvious or fatal, spinal injuries and associated hemorrhages sometimes have been documented in over 50% of fish examined internally. Other harmful effects, such as bleeding at gills or vent and excessive physiological stress, are also of concern. How deep is electrofishing effective? Boat electrofishing is only…

Can Fish Be Warm Blooded in the USA

The opah is the only known fully warm-blooded fish that circulates heated blood throughout its body. In 2015, researchers with the NOAA Southwest Fisheries Science Center revealed the opah, or moonfish, as the first fully warm-blooded fish. Are fish warm or cold blooded? Like reptiles and amphibians, fish are cold-blooded poikilothermous vertebrates —meaning they get…