A species diversity expert from Colorado State University claimed in his research study that maintaining a genetic variability in the population of species is essential to help them adapt to the environment. The changing climate can only be survived by plants or animals if their genetic makeup is strong.
This was especially observed among the populations of Pacific salmon, which is also threatened and endangered. Inbreeding is when small, isolated groups of a species copulate amongst each other which can reduce its ability to survive and reproduce. Populations which have low genetic diversity have lesser ability to evolve to their modifying environment.
The study on Pacific Salmon was lead by Marty Kardos who is a geneticist at NOAA's Northwest Fisheries Science Center.
Thus capturing, and keeping animals in confinement can affect them in not just one but for many generations. The advancements in genomics or genetic studies has made it possible to sequence entire genomes, efficiently and feasibly.
These progressive technologies have expanded the scientific understanding of wild populations like salmon and their interactions with the environment. For example, researchers can study genetic traits that affect a particular Pacific salmon population, migration timing, disease resistance, and other developments. Studying deeply about a single species also unlocks more possibilities for conservation of others.