i
Genetic Structure of Pacific Trout at the Extreme Southern End of Their Native Range
-
2015
Source: PLOS ONE. 2015; 10(10): e0141775.
[PDF-3.84 MB]
Details:
-
Journal Title:PLOS ONE
-
Personal Author:
-
NOAA Program & Office:
-
Description:Salmonid fishes are cold water piscivores with a native distribution spanning nearly the entire temperate and subarctic northern hemisphere. Trout in the genus Oncorhynchus are the most widespread salmonid fishes and are among the most important fish species in the world, due to their extensive use in aquaculture and valuable fisheries. Trout that inhabit northwestern Mexico are the southernmost native salmonid populations in the world, and the least studied in North America. They are unfortunately also facing threats to their continued existence. Previous work has described one endemic species, the Mexican golden trout (O. chrysogaster), and one endemic subspecies, Nelson's trout (O. mykiss nelsoni), in Mexico, but previous work indicated that there is vastly more biodiversity in this group than formally described. Here we conducted a comprehensive genetic analysis of this important group of fishes using novel genetic markers and techniques to elucidate the biodiversity of trout inhabiting northwestern Mexico, examine genetic population structure of Mexican trout and their relationships to other species of Pacific trout, and measure introgression from non-native hatchery rainbow trout. We confirmed substantial genetic diversity and extremely strong genetic differentiation present in the Mexican trout complex, not only between basins but also between some locations within basins, with at least four specieslevel taxa present. We also revealed significant divergence between Mexican trout and other trout species and found that introgression from non-native rainbow trout is present but limited, and that the genetic integrity of native trout is still maintained in most locations. This information will help to guide effective conservation strategies for this important group of fishes.
-
Keywords:
-
Source:PLOS ONE. 2015; 10(10): e0141775.
-
Pubmed Central ID:PMC4624944
-
Document Type:
-
Place as Subject:
-
Rights Information:CC BY
-
Compliance:PMC
-
Main Document Checksum:urn:sha256:78d2a4d4b3edf29c01f8f1e12ef96b109a5ca6c8fe36328af2b00405f5ca2111
-
File Type:
Related Documents
-
Personal Author:Allen, Camryn D. ;Robbins, Michelle N....2015 | PLOS ONE. 2015; 10(10): e0138861.Description:Determining sex ratios of endangered populations is important for wildlife management, particularly species subject to sex-specific threats or that ex...Personal Author:Simeone, Claire A. ;Gulland, Frances M. D....2015 | PLOS ONE. 2015; 10(11): e0142105.Description:Marine mammals are often cited as "sentinels of ocean health" yet accessible, synthesized data on their health changes that could effectively warn of ...2016 | PLOS ONE. 2016; 11(6): e0157170.Description:Sea turtles are vulnerable to climate change impacts in both their terrestrial (nesting beach) and oceanic habitats. From 1982 to 2012, air and sea su...Personal Author:Magris, Rafael A. ;Heron, Scott F....2015 | PLOS ONE. 2015; 10(11): e0140828.Description:Incorporating warming disturbances into the design of marine protected areas (MPAs) is fundamental to developing appropriate conservation actions that...Personal Author:Hunsperger, Heather M. ;Ford, Christopher J....2016 | PLOS ONEDescription:Background Diatoms (Bacilliariophyceae) encode two light-dependent protochlorophyllide oxidoreductases (POR1 and POR2) that catalyze the penultimate s...Personal Author:Luo, Jiangang ;Ault, Jerald S....2015 | PLOS ONE. 2015; 10(10): e0141101.Description:For centuries, the mechanisms surrounding spatially complex animal migrations have intrigued scientists and the public. We present a new methodology u...Personal Author:Daly, Elizabeth A. ;Brodeur, Richard D.2015 | PLOS ONE. 2015; 10(12): e0144066.Description:The trophic habits, size and condition of yearling Chinook salmon (Oncorhynchus tshawytscha) caught early in their marine residence were examined duri...Personal Author:Vargas-Ángel, Bernardo ;Richards, Cristi L....2015 | PLOS ONE. 2015; 10(12): e0142196.Description:This paper presents a comprehensive quantitative baseline assessment of in situ net calcium carbonate accretion rates (g CaCO3 cm(-2) yr(-1)) of early...An Integrated Coral Reef Ecosystem Model to Support Resource Management under a Changing ClimateCitePersonal Author:Weijerman, Mariska ;Fulton, Elizabeth A....2015 | PLOS ONE. 2015; 10(12): e0144165.Description:Millions of people rely on the ecosystem services provided by coral reefs, but sustaining these benefits requires an understanding of how reefs and th...2017 | PLOS ONE. 2017; 12(4): e0175066.Description:The advancement of metabarcoding techniques, declining costs of high-throughput sequencing and development of systematic sampling devices, such as aut...Personal Author:Brown, Larry R. ;Komoroske, Lisa M....2016 | PLOS ONE. 2016; 11(1): e0146724.Description:Climate change is driving rapid changes in environmental conditions and affecting population and species' persistence across spatial and temporal scal...2019 | PLOS ONE. 2019; 14(4): e0214972.Description:Sea turtle populations are often assessed at the regional to sub-basin scale from discrete indices of nesting abundance. While this may be practical a...Large Salt Dust Storms Follow a 30-Year Rainfall Cycle in the Mar Chiquita Lake (Cordoba, Argentina)Cite2016 | PLOS ONE. 2016; 11(6): e0156672.Description:Starting in 2006, a new source of intense salt dust storms developed in Mar Chiquita (Cordoba, Argentina), the largest saline lake in South America. S...On Extrapolating Past the Range of Observed Data When Making Statistical Predictions in EcologyCitePersonal Author:Conn, Paul B. ;Johnson, Devin S....2015 | PLOS ONE. 2015; 10(10): e0141416.Description:Ecologists are increasingly using statistical models to predict animal abundance and occurrence in unsampled locations. The reliability of such predic...
More +
You May Also Like
2022 | Ecotoxicology, 31(10), 1506-1519
Description:
Stream and riparian food webs are connected by cross-habitat exchanges of invertebrate prey that can transfer contaminants including mercury. Marine f...
Checkout today's featured content at repository.library.noaa.gov