Characterization of Organism-Sediment Relations Using Sediment Profile Imaging: An Efficient Method of Remote Ecological Monitoring of the Seafloor (Remots System)

Rhoads, Donald C.; Germano, Joseph D.

doi:10.3354/meps008115

Cited by 191 publications

(112 citation statements)

References 15 publications

(20 reference statements)

Supporting

Mentioning

108

Contrasting

Unclassified

Order By: Relevance

“…After equilibration with sediment pore water, the indicator can be optically scanned (excitation and emission) nondestructively through the transparent plate to obtain a two-dimensional ''picture'' of solute distributions. Photometric detection of fluorescence from plate sensors can either be done in the laboratory subsequent to removing the sensor from the sediment or directly in situ using more sophisticated benthic lander technology (Smith et al 1976;Rhoads and Germano 1982;Nilsson and Rosenberg 2000). One such benthic camera system (Hyperspectral REMOTS) is presently equipped for UV excitation/emission scans for detection of autofluorescent anthropogenic contaminants (pyrenes), but has not yet been used to determine specific solute distributions in situ (Rhoads et al 1994).…”

mentioning

confidence: 99%

A pH plate fluorosensor (optode) for early diagenetic studies of marine sediments

Hulth

Aller

Engström

et al. 2002

Limnology & Oceanography

105

102

View full text Add to dashboard Cite

Pore water pH distributions are closely coupled to early diagenetic reactions and transport processes in surficial sediments. In this study, an optical plate fluorosensor for rapid two-dimensional detection of H ϩ concentration patterns in sediment pore waters was developed. The dual excitation (405/450 nm) single emission (520 nm) pH fluorophore HPTS (8-hydroxypyrene 1, 3, 6, trisulfonic acid trisodium salt) was immobilized onto transparent, supporting sensor foils. Excitation/emission spectra of immobilized HPTS exhibited pH dependent shifts in seawater standards, and fluorescence excitation ratios were used for two-wavelength, ratiometric detection of pH distributions in sediment and bottom water close to the sediment-water interface (pH ഠ 6.5 to 8.5). Sensor foils were fixed to the inner sides of plastic box corers or glass plate aquaria containing sediment and overlying seawater. Equilibration with pore water occurred in seconds, and fluorescence response (excitation/emission) was scanned nondestructively using a monochrome, integrating CCD camera. The two-dimensional sensor system has a vertical and horizontal resolution of 56 ϫ 54 m (5 ϫ 5 pixels) applied over an image of 34 ϫ 26 mm. Reproducibility and accuracy were best when foils were prepared from solutions of similar ionic strength to samples. Optical sensor pH distributions correlated well with high-resolution, vertical distributions measured simultaneously with a minicombination pH electrode, and two-dimensional pH patterns demonstrated directly the transport-reaction heterogeneity associated with microtopography and biogenic structures in surface deposits and overlying waters close to the sediment-water interface. Sensor foils retained calibration characteristics for at least 50 d.

show abstract

mentioning

confidence: 99%

A pH plate fluorosensor (optode) for early diagenetic studies of marine sediments

Hulth

Aller

Engström

et al. 2002

Limnology & Oceanography

105

102

View full text Add to dashboard Cite

show abstract

“…For example, a recent study used optically tagged particle tracers (i.e., luminophores [Gerino, 1990]) and traditional coring methods to quantify bioturbation in the Vece Lagoon, and described it with a model that has both diffusive and non-local terms [Mugnai et al, 2003]. Another study combined luminophores with in situ imaging of 2D sediment profiles (i.e., SPI Camera [Rhoads and Germano, 1982]) to obtain high-frequency time-lapse data on macrofaunal particle transport, which were then described using a non-local, non-diffusive model framework [Solan et al, 2004]. Results of these and future similar studies will ultimately enable us to reliably estimate the range of redox oscillation patterns encountered by sediment particles within various environments.…”

Section: Infauna-induced Particle Displacementmentioning

confidence: 99%

“…However, currently these approaches can only be implemented after a direct observation of burrow geometry by X-radiography, resin cast, sediment profile imagery, or computer-assisted axial tomography [Davey, 1994;Furukawa et al, 2001;Michaud et al, 2003;Rhoads and Germano, 1982].…”

Section: D'mentioning

confidence: 99%

Biogeochemical consequences of infaunal activities

Furukawa¹

2005

Coastal and Estuarine Studies

View full text Add to dashboard Cite

The public reporting burden for this collection of Information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing the burden, Activities of sedimentary infauna have significant consequences on overall sedimentary diagenesis. Infauna directly participate in sedimentary processes by organic matter metabolization coupled to aerobic respiration and metabolite excretion. In addition, they indirectly influence the diagenetic pathways by changing the transport regimes of dissolved and particulate species as well as by modifying microbial habitats. The couplings between infaunal activities and their biogeochemical consequences have been studied in recent years, but many of the results and conclusions remain site-and species-specific due to the diverse and highly interrelated ways in which sedimentary infauna interact with the transport. reaction, and microbial regimes. A generalized understanding of infauna-influenced sedimentary systems will require (It a systematic classification of the infauna-sediment interaction mechanisms Activities of sedimentary infauna have significant consequences on overall sedimentary diagenesis. Infauna directly participate in sedimentary processes by organic matter metabolization coupled to aerobic respiration and metabolite excretion. In addition, they indirectly influence the diagenetic pathways by changing the transport regimes of dissolved and particulate species as well as by modifying microbial habitats. The couplings between infaunal activities and their biogeochemical consequences have been studied in recent years, but many of the results and conclusions remain site-and species-specific due to the diverse and highly interrelated ways in which sedimentary infauna interact with the transport, reaction, and microbial regimes. A generalized understanding of infauna-influenced sedimentary systems will require (1) a systematic classification of the infauna-sediment interaction mechanisms and (2) a comprehensive model framework that incorporates all known effects of infauna-sediment interactions associated with transport, reaction, and microbial regimes.

show abstract

“…This index presents four main metrics (1) dissolved oxygen conditions; (2) depth of the apparent RPD; (3) infaunal successional stage; and (4) presence or absence of sedimentary methane. The successional stage was measured with sediment profile images, which characterizes the benthic habitat in relation to physical-chemical features (Rhoads and Germano, 1982). The OSI index has also been used in some studies to map habitat quality (Rhoads and Germano, 1986), to assess physical disturbances and organic enrichment (Valente et al, 1992), and to evaluate the effects of mariculture (O'Connor et al, 1989).…”

Section: 15mentioning

confidence: 99%

Review and evaluation of estuarine biotic indices to assess benthic condition

Pinto

Patrício

Baeta

et al. 2009

Ecological Indicators

252

108

View full text Add to dashboard Cite

Characterization of Organism-Sediment Relations Using Sediment Profile Imaging: An Efficient Method of Remote Ecological Monitoring of the Seafloor (Remots System)

Cited by 191 publications

References 15 publications

A pH plate fluorosensor (optode) for early diagenetic studies of marine sediments

A pH plate fluorosensor (optode) for early diagenetic studies of marine sediments

Biogeochemical consequences of infaunal activities

Review and evaluation of estuarine biotic indices to assess benthic condition

Contact Info

Product

Resources

About

Characterization of Organism-Sediment Relations Using Sediment Profile Imaging: An Efficient Method of Remote Ecological Monitoring of the Seafloor (Remots System)

Cited by 191 publications

References 15 publications

A pH plate fluorosensor (optode) for early diagenetic studies of marine sediments

A pH plate fluorosensor (optode) for early diagenetic studies of marine sediments

Biogeochemical consequences of infaunal activities

Review and evaluation of estuarine biotic indices to assess benthic condition

Contact Info

Product

Resources

About

Characterization of Organism-Sediment Relations Using Sediment Profile Imaging: An Efficient Method of Remote Ecological Monitoring of the Seafloor (Remots System)