NDLI: Bioturbation in a Declining Oxygen Environment, in situ Observations from Wormcam

Content Provider	PubMed Central
Author	Sturdivant, S. Kersey Díaz, Robert J. Cutter, George R.
Editor	Unsworth, Richard K. F.
Copyright Year	2012
Abstract	Bioturbation, the displacement and mixing of sediment particles by fauna or flora, facilitates life supporting processes by increasing the quality of marine sediments. In the marine environment bioturbation is primarily mediated by infaunal organisms, which are susceptible to perturbations in their surrounding environment due to their sedentary life history traits. Of particular concern is hypoxia, dissolved oxygen (DO) concentrations ≤2.8 mg l−1, a prevalent and persistent problem that affects both pelagic and benthic fauna. A benthic observing system (Wormcam) consisting of a buoy, telemetering electronics, sediment profile camera, and water quality datasonde was developed and deployed in the Rappahannock River, VA, USA, in an area known to experience seasonal hypoxia from early spring to late fall. Wormcam transmitted a time series of in situ images and water quality data, to a website via wireless internet modem, for 5 months spanning normoxic and hypoxic periods. Hypoxia was found to significantly reduce bioturbation through reductions in burrow lengths, burrow production, and burrowing depth. Although infaunal activity was greatly reduced during hypoxic and near anoxic conditions, some individuals remained active. Low concentrations of DO in the water column limited bioturbation by infaunal burrowers and likely reduced redox cycling between aerobic and anaerobic states. This study emphasizes the importance of in situ observations for understanding how components of an ecosystem respond to hypoxia.
Related Links	http://dx.doi.org/10.1371/journal.pone.0034539
Starting Page	34539
File Format	PDF
ISSN	19326203
e-ISSN	19326203
Journal	PLoS ONE
Issue Number	4
Volume Number	7
Language	English
Publisher	Public Library of Science
Publisher Date	2012-04-01
Access Restriction	Open
Rights Holder	Public Library of Science
Subject Keyword	Biochemistry, Genetics and Molecular Biology(all) Agricultural and Biological Sciences(all) Medicine(all) Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Octocoral Tissue Provides Protection from Declining Oceanic pH

Correction: Octocoral Tissue Provides Protection from Declining Oceanic pH

In Situ Coral Reef Oxygen Metabolism: An Eddy Correlation Study

Anthropogenically-Mediated Density Dependence in a Declining Farmland Bird

An Open Source Simulation Model for Soil and Sediment Bioturbation

Pup Mortality in a Rapidly Declining Harbour Seal (Phoca vitulina) Population

Aid to a Declining Matriarch in the Giant Otter (Pteronura brasiliensis)

Using Latent Selection Difference to Model Persistence in a Declining Population

Treatment of Mycoplasma genitalium. Observations from a Swedish STD Clinic

Bioturbation in a Declining Oxygen Environment, in situ Observations from Wormcam

Similar Documents

Octocoral Tissue Provides Protection from Declining Oceanic pH

Correction: Octocoral Tissue Provides Protection from Declining Oceanic pH

In Situ Coral Reef Oxygen Metabolism: An Eddy Correlation Study

Anthropogenically-Mediated Density Dependence in a Declining Farmland Bird

An Open Source Simulation Model for Soil and Sediment Bioturbation

Pup Mortality in a Rapidly Declining Harbour Seal (Phoca vitulina) Population

Aid to a Declining Matriarch in the Giant Otter (Pteronura brasiliensis)

Using Latent Selection Difference to Model Persistence in a Declining Population

Treatment of Mycoplasma genitalium. Observations from a Swedish STD Clinic

Bioturbation in a Declining Oxygen Environment, in situ Observations from Wormcam