Pubblicazione scientifica

Water, water everywhere: environmental DNA can unlock population structure in elusive marine species

FILONE TECNOLOGICO	TEMA
economia circolare e sostenibilità
produzione e cattura

RIASSUNTO

Determining management units for natural populations is critical for effective conservation and management. However, collecting the requisite tissue samples for population genetic analyses remains the primary limiting factor for a number of marine species. The harbour porpoise (Phocoena phocoena), one of the smallest cetaceans in the Northern Hemisphere, is a primary example. These elusive, highly mobile small animals confound traditional approaches of collecting tissue samples for genetic analyses, yet their nearshore habitat makes them highly vulnerable to fisheries by-catch and the effects of habitat degradation. By exploiting the naturally shed cellular material in seawater and the power of next-generation sequencing, we develop a novel approach for generating population-specific mitochondrial sequence data from environmental DNA (eDNA) using surface seawater samples. Indications of significant genetic differentiation within a currently recognized management stock highlights the need for dedicated eDNA sampling throughout the population's range in southeast Alaska. This indirect sampling tactic for characterizing stock structure of small and endangered marine mammals has the potential to revolutionize population assessment for otherwise inaccessible marine taxa.

DATA

Data di pubblicazione: 08/08/2018

AUTORI

PARSONS KIM M
EVERETT MEREDITH
DAHLHEIM MARILYN
PARK LINDA

ENTE DI AFFERENZA

UNDER CONTRACT TO NOAA NATL MARINE FISHERIES SRVC MARINE MAMMAL LAB ALASKA FISHERIES SCIENCE CTR
UNDER CONTRACT TO NOAA NATL MARINE FISHERIES SRVC
MARINE MAMMAL LAB ALASKA FISHERIES SCIENCE CTR
NORTHWEST FISHERIES SCIENCE CTR

RIVISTA

Royal Society Open Science, 5(8), 180537

IMPACT FACTOR

2,680

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