Advertisement

Topics

Large-scale impacts of sea star wasting disease (SSWD) on intertidal sea stars and implications for recovery.

08:00 EDT 20th March 2018 | BioPortfolio

Summary of "Large-scale impacts of sea star wasting disease (SSWD) on intertidal sea stars and implications for recovery."

Disease outbreaks can have substantial impacts on wild populations, but the often patchy or anecdotal evidence of these impacts impedes our ability to understand outbreak dynamics. Recently however, a severe disease outbreak occurred in a group of very well-studied organisms-sea stars along the west coast of North America. We analyzed nearly two decades of data from a coordinated monitoring effort at 88 sites ranging from southern British Columbia to San Diego, California along with 2 sites near Sitka, Alaska to better understand the effects of sea star wasting disease (SSWD) on the keystone intertidal predator, Pisaster ochraceus. Quantitative surveys revealed unprecedented declines of P. ochraceus in 2014 and 2015 across nearly the entire geographic range of the species. The intensity of the impact of SSWD was not uniform across the affected area, with proportionally greater population declines in the southern regions relative to the north. The degree of population decline was unrelated to pre-outbreak P. ochraceus density, although these factors have been linked in other well-documented disease events. While elevated seawater temperatures were not broadly linked to the initial emergence of SSWD, anomalously high seawater temperatures in 2014 and 2015 might have exacerbated the disease's impact. Both before and after the onset of the SSWD outbreak, we documented higher recruitment of P. ochraceus in the north than in the south, and while some juveniles are surviving (as evidenced by transition of recruitment pulses to larger size classes), post-SSWD survivorship is lower than during pre-SSWD periods. In hindsight, our data suggest that the SSWD event defied prediction based on two factors found to be important in other marine disease events, sea water temperature and population density, and illustrate the importance of surveillance of natural populations as one element of an integrated approach to marine disease ecology. Low levels of SSWD-symptomatic sea stars are still present throughout the impacted range, thus the outlook for population recovery is uncertain.

Affiliation

Journal Details

This article was published in the following journal.

Name: PloS one
ISSN: 1932-6203
Pages: e0192870

Links

DeepDyve research library

PubMed Articles [25950 Associated PubMed Articles listed on BioPortfolio]

Pido: Predictive Delay Optimization for Intertidal Wireless Sensor Networks.

Intertidal habitats are among the harshest environments on the planet, and have emerged as a model system for exploring the ecological impacts of global climate change. Deploying reliable instrumentat...

What's in a tide pool? Just as much food web network complexity as in large open ecosystems.

Understanding the fundamental laws that govern complex food web networks over large ecosystems presents high costs and oftentimes unsurmountable logistical challenges. This way, it is crucial to find ...

Restrictive lung disorder is common in patients with kidney failure and associates with protein-energy wasting, inflammation and cardiovascular disease.

Cardiovascular disease (CVD), protein-energy wasting (PEW), and inflammation are common interrelated features of chronic kidney disease (CKD). Less is known about lung dysfunction in CKD and its possi...

Risk assessment for emergency events of infectious disease in outlying areas of large-scale activities.

To identify and assess the potential public health risks of emergency events of infectious disease in the surrounding areas of Hangzhou during the 11th G20 summit, and to assess their impacts on the G...

Leptin and ghrelin in chronic kidney disease: their associations with protein-energy wasting.

This study aimed to evaluate plasma concentrations of leptin and total ghrelin in children with chronic kidney disease (CKD) and assess their roles in protein-energy wasting (PEW).

Clinical Trials [7530 Associated Clinical Trials listed on BioPortfolio]

Compassionate Use Study of Two Dose Levels of Thalidomide in Adults With HIV Wasting Syndrome

To allow patients with HIV-associated wasting to receive thalidomide treatment at 1 of 2 doses. To gain safety and efficacy data from a broader base of patients with HIV-associated wasting...

A Study to Evaluate the Effect of Nandrolone Decanoate in Women With HIV-Associated Weight Loss

The purpose of this study is to see if giving nandrolone decanoate (a hormonal drug) will cause weight gain in HIV-positive women who have HIV-associated weight loss (wasting). Wasting ha...

Community I-STAR Mozambique: Community Implementation of SBIRT Using Technology for Alcohol Use Reduction in Mozambique

Hazardous drinking (HD) is a major public health burden worldwide with significant morbidity and mortality. To reduce HD, the World Health Organization (WHO) recommends using Screening, Br...

Wasting in Chronic Kidney Disease

Protein energy wasting is an independent factor associated with morbi-mortality in chronic kidney disease. Wasting is particularly common in chronic diseases of organs such as kidney disea...

AIDS Wasting in Women: Anabolic Effects of Testosterone

The study is a 6 month, placebo-controlled study of transdermal testosterone for women with HIV-associated weight loss. Women with AIDS wasting have been found to have low testosterone le...

Medical and Biotech [MESH] Definitions

A genus of the family CIRCOVIRIDAE that infects SWINE; PSITTACINES; and non-psittacine BIRDS. Species include Beak and feather disease virus causing a fatal disease in psittacine birds, and Porcine circovirus causing postweaning multisystemic wasting syndrome in pigs (PORCINE POSTWEANING MULTISYSTEMIC WASTING SYNDROME).

A scale comprising 18 symptom constructs chosen to represent relatively independent dimensions of manifest psychopathology. The initial intended use was to provide more efficient assessment of treatment response in clinical psychopharmacology research; however, the scale was readily adapted to other uses. (From Hersen, M. and Bellack, A.S., Dictionary of Behavioral Assessment Techniques, p. 87)

Large, robust forms of brown algae (PHAEOPHYCEAE) in the order Laminariales. They are a major component of the lower intertidal and sublittoral zones on rocky coasts in temperate and polar waters. Kelp, a kind of SEAWEED, usually refers to species in the genera LAMINARIA or MACROCYSTIS, but the term may also be used for species in FUCUS or Nereocystis.

The large scale production of pharmaceutically important and commercially valuable RECOMBINANT PROTEINS.

A transmissible spongiform encephalopathy (prion disease) of DEER and elk characterized by chronic weight loss leading to death. It is thought to spread by direct contact between animals or through environmental contamination with the prion protein (PRIONS).

Advertisement
Quick Search
Advertisement
Advertisement

 


DeepDyve research library

Searches Linking to this Article