A Benthic Chamber for Intensely Metabolic Lotic Systems

Hall, Charles A. S.; Tempel, Neal; Peterson, Bruce J.

doi:10.2307/1351732

Cited by 23 publications

(17 citation statements)

References 12 publications

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“…During the last years, several studies have optimizated the use of closed systems and have shown that they represent an important tool to examine in situ change in oxygen concentration related to benthic communities (Smith et al, 1972;Zeitzschel and Davies, 1978;Hall et al, 1979;Svoboda and Ott, 1983;Patterson et al, 1991;Glud et al, 1995). As in the mentioned works, we have described a system which solves the potential problems of a closed system and allows us to perform feeding studies.…”

Section: Discussionmentioning

confidence: 99%

A semi-closed recirculating system for the in situ study of feeding and respiration of benthic suspension feeders

Ribes¹,

Coma

Gili

et al. 2000

Sci. Mar.

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Section: Discussionmentioning

confidence: 99%

A semi-closed recirculating system for the in situ study of feeding and respiration of benthic suspension feeders

Ribes¹,

Coma

Gili

et al. 2000

Sci. Mar.

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“…Several benthic chamber systems were developed for in situ flux measurements (e.g., Berelson and Hammond 1986;Devol 1987;Hall et al 1979;Jahnke and Christiansen 1989;Smith et al 1979;Tengberg et al 2003;Tengberg et al 1995). Some of them allow the retrieval of the incubated sediment for ex situ studies and porewater extraction or, like the ROLAI 2 D (Sayles and Dickinson 1991), have equipment for in situ whole core squeezing to obtain porewater samples.…”

Section: and Martin Köllingmentioning

confidence: 99%

Rhizon sampling of porewaters near the sediment‐water interface of aquatic systems

Seeberg‐Elverfeldt

Schlüter

Feseker

et al. 2005

Limnology & Ocean Methods

563

338

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Rhizon samplers were originally designed as micro-tensiometers for soil science to sample seepage water in the unsaturated zone. This study shows applications of Rhizons for porewater sampling from sediments in aquatic systems and presents a newly developed Rhizon in situ sampler (RISS). With the inexpensive Rhizon sampling technique, porewater profiles can be sampled with minimum disturbance of both the sediment structure and possible flow fields. Field experiments, tracer studies, and numerical modeling were combined to assess the suitability of Rhizons for porewater sampling. It is shown that the low effort and simple application makes Rhizons a powerful tool for porewater sampling and an alternative to classical methods. Our investigations show that Rhizons are well suited for sampling porewater on board a ship, in a laboratory, and also for in situ sampling. The results revealed that horizontally aligned Rhizons can sample porewater with a vertical resolution of 1 cm. Combined with an in situ benthic chamber system, the RISS allows studies of benthic fluxes and porewater profiles at the same location on the seafloor with negligible effect on the incubated sediment water interface. Results derived by porewater sampling of sediment cores from the Southern Ocean (Atlantic sector) and by in situ sampling of tidal flat sediments of the Wadden Sea (Sahlenburg/Cuxhaven, Germany) are presented.

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“…Consequently, benthic chambers have been widely used in limnological and marine studies of sediment community respiration (e.g. Pamatmat & Fenton, 1968;Pamatmat & Banse, 1969;Smith et al, 1972;Smith & Teal, 1973;Smith, 1974;Davies, 1975;Smith & Clifford, 1976;Hall et al, 1979;Boynton 1981), benthic primary production (e.g. Leach, 1971; Rodgers et at., 1978) and nutrient fluxes across the sediment-water interface (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…A few studies indicated that variation in stirring speeds corresponding to natural flow speed ranges had little effect on interface processes, but these studies were done in habitats with naturally variable flow regimes (Pamatmat, 1965;Hall et al, 1979). Conversely, most studies dealing with this issue have documented significant effects of stirring rate.…”

Section: Introductionmentioning

confidence: 99%

“…Nor did these studies report ambient flow conditions. A few studies have used pumps or motors with variable speeds (Davies, 1975;Hall et al, 1979;Boynton et a., 1981) but only one of them (Hall et al, 1979) attempted to duplicate external flow conditions in the benthic chamber, with only moderate success and with no built-in feedback from external to internal flows.…”

Section: Introductionmentioning

confidence: 99%

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Use of a whirling cup rotor to stir benthic chambers

Cahoon

1988

Hydrobiologia

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Realistic stirring is an important concern when using benthic chambers to measure processes at the sedimentwater column interface. A simple whirling cup rotor device that is driven by external flow and stirs benthic chambers effectively is described here. Flow tank studies and field studies demonstrated that this device homogenizes benthic chambers rapidly and responds quickly and linearly to external flow conditions. The device is simple to build and use and avoids many of the disadvantages of conventional stirring motors and pumps.

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A Benthic Chamber for Intensely Metabolic Lotic Systems

Cited by 23 publications

References 12 publications

A semi-closed recirculating system for the in situ study of feeding and respiration of benthic suspension feeders

A semi-closed recirculating system for the in situ study of feeding and respiration of benthic suspension feeders

Rhizon sampling of porewaters near the sediment‐water interface of aquatic systems

Use of a whirling cup rotor to stir benthic chambers

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