Unmodified, salt and arrow

2008/12/01 Elhuyar Zientzia Iturria: Elhuyar aldizkaria

• Zoologia
• Anatomia/Fisiologia

The fish Myoxocephalus octodecimspinosus is a saltwater fish that, however, has been seen in many estuaries in the confluence zone of saltwater from the sea with freshwater from the river. The team that has studied its physiology, a group of zoologists from the University of Florida, believes it could be halfway to move on to fresh water. It was analyzed whether the amount of three proteins that help regulate the concentration of salts in the body increased or decreased when the fish was put in different concentrations of salts. The results showed no, that they all appeared in the same amounts. According to scientists, this species has begun to adapt to fresh water, but has not yet fully adapted to physiology.