What structure is examined by scientists to determine the age of the Giant Trevally?
Answer
Otoliths (hard, internal ear bones)
Scientific aging of Caranx ignobilis relies on analyzing otoliths, which are hard internal ear bones that develop annual growth zones similar to tree rings.
Related Questions
What structure is examined by scientists to determine the age of the Giant Trevally?What is the scientifically established maximum age for Giant Trevally in the Hawaiian Islands?What technique was combined with otolith analysis to reliably estimate the lifespan of long-lived GT specimens?What fraction of Giant Trevally juveniles are estimated to survive to reach adulthood?What specific finding demonstrates that length is not always a reliable proxy for the age of mature GTs?What is the maximum known fork length (FL) reported for the Giant Trevally?Why does the long lifespan of the GT complicate sustainable fisheries management?Approximately how old and long is a Giant Trevally when it generally achieves sexual maturity?What evidence suggests that the 25-year maximum lifespan found in Hawaii may not apply universally across the species' range?What value was derived for the growth rate parameter ($k$) in the revised growth function based on the bomb radiocarbon study?Where do juvenile Giant Trevally often seek refuge for protection as they grow?