Ochre star mortality during the 2014 wasting disease epizootic: role of population size structure and temperature

Eisenlord, Morgan E.; Groner, Maya L.; Yoshioka, Reyn M.; Elliott, Joel; Maynard, Jeffrey; Fradkin, Steven; Turner, Margaret; Pyne, Katie; Rivlin, Natalie; van Hooidonk, Ruben; Harvell, C. Drew

doi:10.1098/rstb.2015.0212

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The NOAA IR serves as an archival repository of NOAA-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by NOAA or funded partners. As a repository, the NOAA IR retains documents in their original published format to ensure public access to scientific information.

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Ochre star mortality during the 2014 wasting disease epizootic: role of population size structure and temperature

2016
By Eisenlord, Morgan E. ; Groner, Maya L. ; Yoshioka, Reyn M. ; ...
Source: Philos Trans R Soc Lond B Biol Sci. 2016 Mar 5;371(1689):20150212.

[PDF-1.80 MB]

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Journal Title:

Philosophical Transactions of the Royal Society B: Biological Sciences
Personal Author:

Eisenlord, Morgan E. ; Groner, Maya L. ; Yoshioka, Reyn M. ; Elliott, Joel ; Maynard, Jeffrey ; ... More +

Eisenlord, Morgan E. ; Groner, Maya L. ; Yoshioka, Reyn M. ; Elliott, Joel ; Maynard, Jeffrey ; Fradkin, Steven ; Turner, Margaret ; Pyne, Katie ; Rivlin, Natalie ; van Hooidonk, Ruben ; Harvell, C. Drew Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; AOML (Atlantic Oceanographic and Meteorological Laboratory) ; CPO (Climate Program Office) ; CIMAS (Cooperative Institute for Marine and Atmospheric Studies)

OAR (Oceanic and Atmospheric Research) ; AOML (Atlantic Oceanographic and Meteorological Laboratory) ; CPO (Climate Program Office) ; CIMAS (Cooperative Institute for Marine and Atmospheric Studies) Less -
Description:

Over 20 species of asteroids were devastated by a sea star wasting disease (SSWD) epizootic, linked to a densovirus, from Mexico to Alaska in 2013 and 2014. For Pisaster ochraceus from the San Juan Islands, South Puget Sound and Washington outer coast, time-series monitoring showed rapid disease spread, high mortality rates in 2014, and continuing levels of wasting in the survivors in 2015. Peak prevalence of disease at 16 sites ranged to 100%, with an overall mean of 61%. Analysis of longitudinal data showed disease risk was correlated with both size and temperature and resulted in shifts in population size structure; adult populations fell to one quarter of pre-outbreak abundances. In laboratory experiments, time between development of disease signs and death was influenced by temperature in adults but not juveniles and adult mortality was 18% higher in the 19 °C treatment compared to the lower temperature treatments. While larger ochre stars developed disease signs sooner than juveniles, diseased juveniles died more quickly than diseased adults. Unusual 2-3 °C warm temperature anomalies were coincident with the summer 2014 mortalities. We suggest these warm waters could have increased the disease progression and mortality rates of SSWD in Washington State.
Keywords:

[+]

Climatic Changes Mortality Pisaster Ochraceus
Source:

Philos Trans R Soc Lond B Biol Sci. 2016 Mar 5;371(1689):20150212.
DOI:

https://doi.org/10.1098/rstb.2015.0212
Pubmed ID:

26880844
Pubmed Central ID:

PMC4760142
Document Type:

Journal Article
Funding:

Grant no. NA13OAR4310127
Rights Information:

CC BY
Compliance:

PMC
Main Document Checksum:

[+]

urn:sha256:63f1f91e72a509b76a03fdeaaf4ab47e394bdaa5494a2c4a8b9124db1f310ed0
Download URL:

https://repository.library.noaa.gov/view/noaa/26239/noaa_26239_DS1.pdf
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Ochre star mortality during the 2014 wasting disease epizootic: role of population size structure and temperature

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