Fish DNA

In a first-of-its-kind breakthrough, an international team of scientists has successfully managed to decipher the mystery of Spring Marine Migration, by a sample analysis of fish DNA, collected from the water.

By examining the DNA samples of fish in water, drawn from two rivers of New York, researchers at New York’s Rockefeller University have successfully traced the presence or absence of a range of maritime species throughout a spring aquatic immigration. The research paper published Wednesday has stated that the economical technique, which has potential to be applied in a variety of applications, starting from monitoring aquatic life to protecting then, was used in the East River – a bay of New York and the Hudson River last year for tracking the marine life, migrating during summer.

Published in the latest edition of the scientific journal PLOS One, the new study highlights, the weekly snapshots collected from water samples, filtered for concentrating the DNA, left behind by the greasy surface of fish while swimming, or produced from their droppings. Followed by this, the DNA was then excavated and sequenced, and the researchers matched the aftermaths of the experiment against an online public reference library for pulling out the exact conclusion. From the weekly snaps, researchers created a moving picture that basically toughened and related information, collected by the migration studies, carried out over many years with fishnet investigations.

The one-of-its-kind study pioneers a new manner to keep an eye on fish immigration that includes a division of the effort and outlays of hunting- all without causing any type of harm to the fish. Edna, pioneered by the researchers at New York’s Rockefeller University is now considered to be an easy method to quantify the number of diverse fish genus and species as well as other forms of aquatic life, which often overlooked in the dark waters of rivers, lakes, seas, and other water bodies.

The paper titled under, “Aquatic Environmental DNA Detects Seasonal Fish Abundance and Habitat Preference in an Urban Estuary” is authored by Mark Stoeckle and Director Jesse Ausubel of the Program for the Human Environment at The Rockefeller University, and co-authored by Lyubov Soboleva, a student from John Bowne high school and scientist Zachary Charlop from Rockefeller University.


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