IN PLAIN SIGHT
Pātiki mohoao (Black flounder) can camouflage by changing colour to match its surroundings.
LINKS:
Science learning hub
Pātiki mohoao PDF
Taonga Species_Patiki LOW RES.pdf
CLIMBING ELVERS
Juvenile eels are known as elvers and can climb up verticle walls provided the surface is rough and wet.
Elvers climbing - teara.govt.nz
Video: climbing Eels and other fish
SALEFIN MOLLY
Found in the thermal waters of lake Taupo the Salefin Molly is the only tropical fish in New Zealand. These are females, the males have larger dorsal fins.
Teara website on Coarse fish
Otoliths age fish
Fish earbones are called Otoliths and can tell the age and other information about the fish by rigs or lines, a little like the rings on tree trunks.
NIWA -science website
The fish highway
LINK:
The fish highway - Science learning hub