Development of two quantitative PCR assays for detection of several Cottus species from environmental DNA in Pacific coast watersheds of North America

2019 ◽  
Vol 12 (3) ◽  
pp. 361-363
Author(s):  
Marshal S. Hoy ◽  
Carl O. Ostberg
Keyword(s):  
North America ◽  
Quantitative Pcr ◽  
Pacific Coast ◽  
Environmental Dna ◽  
Pcr Assays

scholarly journals Quantitative PCR assays for detection of five Arctic fish species: Lota lota, Cottus cognatus, Salvelinus alpinus, Salvelinus malma, and Thymallus arcticus from environmental DNA

2017 ◽  
Author(s):  
Torrey W. Rodgers ◽  
John. R. Olson ◽  
Stephen L. Klobucar ◽  
Karen. E. Mock
Keyword(s):  
Quantitative Pcr ◽  
Salvelinus Alpinus ◽  
Environmental Dna ◽  
North Slope ◽  
Cottus Cognatus ◽  
The North ◽  
North Slope Of Alaska ◽  
Arctic Fish ◽  
Thymallus Arcticus ◽  
Pcr Assays

AbstractThe North Slope of Alaska contains arctic fish populations that are important for subsistence of local human populations, and are under threat from natural resource extraction and climate change. We designed and evaluated four quantitative PCR assays for the detection of environmental DNA from five Alaskan fish species present on the North Slope of Alaska: burbot (Lota lota), arctic char (Salvelinus alpinus), Dolly Varden (Salvelinus malma), arctic grayling (Thymallus arcticus), and slimy sculpin (Cottus cognatus). All assays were designed and tested for species specificity and sensitivity, and all assays detected target species from filtered water samples collected from the field. These assays will enable efficient and economical detection and monitoring of these species in lakes and rivers. This in turn will provide managers with improved knowledge of current distributions and future range shifts associated with climate and development threats, enabling more timely management.

Development of quantitative PCR assays for the detection and quantification of lake sturgeon (Acipenser fulvescens) environmental DNA

2018 ◽  
Vol 12 (1) ◽  
pp. 17-19 ◽  
Author(s):  
Michael E. Yusishen ◽  
Frances-Claire Eichorn ◽  
W. Gary Anderson ◽  
Margaret F. Docker
Keyword(s):  
Quantitative Pcr ◽  
Environmental Dna ◽  
Lake Sturgeon ◽  
Acipenser Fulvescens ◽  
Pcr Assays ◽  
Detection And Quantification

scholarly journals Development and Testing of Species-specific Quantitative PCR Assays for Environmental DNA Applications

10.3791/61825 ◽  
2020 ◽  
Author(s):  
Katy E. Klymus ◽  
Dannise V. Ruiz Ramos ◽  
Nathan L. Thompson ◽  
Catherine A. Richter
Keyword(s):  
Quantitative Pcr ◽  
Environmental Dna ◽  
Pcr Assays ◽  
Species Specific

Developing quantitative PCR assays to detect threatened and invasive freshwater turtles in Hong Kong using environmental DNA

2019 ◽  
Vol 12 (2) ◽  
pp. 293-300
Author(s):  
Ivan P. Y. Lam ◽  
Yik-Hei Sung ◽  
Liu Lin ◽  
Jonathan J. Fong
Keyword(s):  
Hong Kong ◽  
Quantitative Pcr ◽  
Environmental Dna ◽  
Freshwater Turtles ◽  
Pcr Assays

scholarly journals qPCR assays for the detection of two western North American freshwater mussel species, Anodonta nuttalliana and Anodonta oregonensis, from environmental DNA

2018 ◽  
Author(s):  
Torrey W. Rodgers ◽  
Karen E. Mock
Keyword(s):  
North America ◽  
Threatened Species ◽  
Freshwater Mussel ◽  
Environmental Dna ◽  
Western North America ◽  
Mussel Species ◽  
Specificity And Sensitivity ◽  
Pcr Assays ◽  
Species Specific ◽  
Management And Conservation

AbstractWe developed species-specific quantitative PCR assays for the detection of two freshwater mussel species native to the western North America, Anodonta nuttalliana and Anodonta oregonensis, from environmental DNA. These species have experienced dramatic declines over the last century, and are currently threatened in many portions of their range. Improved tools for detecting and monitoring these species are needed. Species-specificity and sensitivity of the assays was empirically tested in the lab, and both assays were also validated with field collected eDNA samples. We found that the assays we designed are species-specific, sensitive, and are effective for detecting Anodonta nuttalliana and Anodonta oregonensis from environmental DNA samples collected from streams and rivers. These assays will aid in the detection, monitoring, management, and conservation of these threatened species.

Archibald Menzies (1754–1842), an early botanist on the northwestern seaboard of North America, 1792–1794, with further notes on his life and work

2001 ◽  
Vol 28 (1) ◽  
pp. 71-122 ◽  
Author(s):  
ERIC W. GROVES
Keyword(s):  
North America ◽  
Pacific Coast ◽  
Later Life ◽  
Northwest Pacific ◽  
Historical Events ◽  
Short Biography

ABSTRACT: This paper includes a short biography of Menzies and an outline of the historical events on the northwest Pacific coast leading up to Vancouver's voyage. A table listing the botanical visitors to that area prior to 1792 is given followed by a résumé of the evolution of Menzies's journal. Sources used in compiling the chronology of his movements during Vancouver's voyage are then set down, ending the section with an account of Menzies's own visit, 1792–1794. His method of plant collecting is discussed along with an account of his collections and their subsequent disposal. The paper concludes with details of Menzies's later life, his connection with other botanists of the day, and an assessment of his achievements.

scholarly journals Application of Quantitative-PCR to Monitor Netpen Sites in British Columbia (Canada) for Tenacibaculum Species

Pathogens ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 414
Author(s):  
Joseph P. Nowlan ◽  
Scott R. Britney ◽  
John S. Lumsden ◽  
Spencer Russell
Keyword(s):  
Atlantic Salmon ◽  
Quantitative Pcr ◽  
Salmo Salar ◽  
Bacterial Load ◽  
Temporal Distribution ◽  
Quality Parameters ◽  
Antimicrobial Use ◽  
Live Fish ◽  
Dead Fish ◽  
Pcr Assays

Tenacibaculum are frequently detected from fish with tenacibaculosis at aquaculture sites; however, information on the ecology of these bacteria is sparse. Quantitative-PCR assays were used to detect T. maritimum and T. dicentrarchi at commercial Atlantic salmon (Salmo salar) netpen sites throughout several tenacibaculosis outbreaks. T. dicentrarchi and T. maritimum were identified in live fish, dead fish, other organisms associated with netpens, water samples and on inanimate substrates, which indicates a ubiquitous distribution around stocked netpen sites. Before an outbreak, T. dicentrarchi was found throughout the environment and from fish, and T. maritimum was infrequently identified. During an outbreak, increases in the bacterial load in were recorded and no differences were recorded after an outbreak supporting the observed recrudescence of mouthrot. More bacteria were recorded in the summer months, with more mortality events and antibiotic treatments, indicating that seasonality may influence tenacibaculosis; however, outbreaks occurred in both seasons. Relationships were identified between fish mortalities and antimicrobial use to water quality parameters (temperature, salinity, dissolved oxygen) (p < 0.05), but with low R2 values (<0.25), other variables are also involved. Furthermore, Tenacibaculum species appear to have a ubiquitous spatial and temporal distribution around stocked netpen sites, and with the potential to induce disease in Atlantic salmon, continued research is needed.

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