Water in New York Rivers Told about Fish Migration

13.04.2017

Experts at the Rockefeller University (USA) used the DNA, contained in samples of water from the East river and the Hudson River, to study the migration of various fish species.

Water in New York Rivers Told about Fish Migration

In six months the scientists managed to select 76 water samples of 1 liter, which had DNA species of 51 fish types, including uncharacteristic ones for this region.

In addition, the analysis allowed following the seasonal fish migration. It turned out that this method of investigation in no way inferior to the traditional ones, such as the analysis of changes in the commercial catches composition in certain areas and tagging of individuals or groups of fish.

The study of fish migrations is important both for the protection of the environment and for fishing, for example, to develop catch quotas.