Many people are aware that trees can be dated by counting the layers of tree rings in a cross section. But, less folks know that fish, snails, mussels, and the teeth of many local mammal species build seasonal growth rings that are used to age individuals.
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Many people are aware that trees can be dated by counting the layers of tree rings in a cross section. But, less folks know that fish, snails, mussels, and the teeth of many local mammal species build seasonal growth rings that are used to age individuals.
In this episode of Field Notes, Lonnie Parry Gillis takes us on an exploration of the fish of Vilas County, Wisconsin—an area blessed with an astounding 1,300 plus lakes.
WXPR Field Notes
Many people are aware that trees can be dated by counting the layers of tree rings in a cross section. But, less folks know that fish, snails, mussels, and the teeth of many local mammal species build seasonal growth rings that are used to age individuals.
