A note on the relocation of marsh debris during a storm surge

Hackney, Courtney T.; Bishop, T. Dale

doi:10.1016/s0302-3524(81)80087-4

Cited by 23 publications

(10 citation statements)

References 1 publication

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“…2). These data, coupled with those of Pickral & Odum (1977) and Hackney & Bishop (1981), support the contention that during major coastal storms considerable quantities of organic materials may be exported from salt marshes.…”

Section: Stormssupporting

confidence: 65%

Organic carbon flux through a Delaware Bay salt marsh: tidal exchange, particle size distribution, and storms

Roman¹,

Daiber²

1989

Mar. Ecol. Prog. Ser.

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Organic carbon exchange via tidal transport between a 190 ha Spartina alterniflora marsh and Delaware Bay was quantified during 5 seasonal sampling periods in April, June, August, October, 1980 and January, 1981. Based on hourly samples collected over 3 consecutive tidal cycles, mean ebb tide concentrations of particulate organic carbon (POC) were hlgher than flood tide concentrations, except in January when the marsh surface and creeks were frozen. Mean ebb tide dissolved organic carbon (DOC) concentrations were greater than flood during all seasons, although the difference was only significant in August and January. Hourly concentrations were variable, ranging from 0.4 to 11.4 mg POC 1-' and 1.5 to 15.5 mg DOC I-'. The relative degree of marsh surface flooding, current velocity and phytoplankton concentration are important factors influencing seasonal differences in mean flood and mean ebb concentrations of POC. A broad size spectrum of particulate detritus is available to estuarine consumers, with 60 to 84 % of the total POC on both flood and ebb tides being < 20 pm in size and the remaining material distributed fairly equally among larger fractions (> 243 pm, 243-63 pm, 63-20 pm

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Section: Stormssupporting

confidence: 65%

Organic carbon flux through a Delaware Bay salt marsh: tidal exchange, particle size distribution, and storms

Roman¹,

Daiber²

1989

Mar. Ecol. Prog. Ser.

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“…Some of this would then contribute to litter formation at the production site, and the remainder would be removed. This latter material would be available for decomposition at another location on the marsh or even be exported from the marsh (Reimold et al 1975, Hackney & Bishop 1981. Decomposition of fragmented material in the litter layer where water tables fluctuate may be more rapid than that for the initial standing dead material (Kruzynski et al 1978).…”

Section: Biomass Dynamics and Distributionmentioning

confidence: 99%

Juncus roemerianus production and decomposition along gradients of salinity and hydroperiod

Christian¹,

Bryant²,

Brinson³

1990

Mar. Ecol. Prog. Ser.

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Juncus roemerianus Scheele, the black needlerush, dominates much of an irregularly flooded salt marsh at the Cedar Island National Wildhfe Refuge, North Carolina, USA. We examined its dynamics of growth, senescence, and decomposition along a 1.6 km transect into the marsh over salinity and hydroperiod gradients passing successively through 3 distinct vegetational zones. Little difference was noted among zones in any of the dynamic aspects examined. Aerial, annual net primary production of J. roernerianus averaged 812 g dry mass m-2. This rate is comparable to that of J. roemerianusin other North Carolina marshes. Measured parameters for production estimates were production-to-biomass ratio, frequency of replacement of growing leaves (number of times per year in which leaf cohorts grow to maximum height), and standing crop of growing leaves. Only the latter parameter revealed statistically significant change with distance into the marsh with the most inner zone having the least biomass of leaves. Senescence of leaves progressed similarly along the transect, as did decomposition. A lack of dominance by J. roemerianus in the inner zone may be a consequence of competitive advantages of other species in an environment of lower salinity and shorter hydroperiod. On average, Juncus roemerianus leaves grow for 259 d and senesce for 312 d. The rate of decomposition of standing dead leaves is slow (-0.25 F-'). Thus it would not be uncommon for a leaf to remain standing for several years. Given this longevity and persistence, biomass removal by physical processes such as storms and fire may be important.

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“…Second, episodic forcing events may be significant mechanisms of transport. Hackney & Bishop (1981) found significant transport of macroorganic material during storm events. Such detrital material contains large numbers of bacteria (Newell & Hicks, 1982) and several of these forcing events may alter considerably the net flux of various materials.…”

Section: Discussionmentioning

confidence: 94%

Nutrient flux in the Rhode River: Tidal transport of microorganisms in brackish marshes

Rublee

Merkel

Faust

1983

Estuarine, Coastal and Shelf Science

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Abstract:Concentrations of bacteria, chlorophyll a, and several dissolved organic compounds were determined during 11 tidal cycles throughout the year in a high and a low elevation marsh of a brackish tidal estuary. Mean bacterial concentrations were slightly higher in flooding (7•1 × 10 6 cells ml -1 ) than in ebbing waters (6•5 × 10 6 cells ml -1 ), and there were no differences between marshes. Mean chlorophyll a concentrations were 36•7 μg 1 -1 in the low marsh and 20•4 μg 1 -1 in the high marsh. Flux calculations, based on tidal records and measured concentrations, suggested a small net import of bacterial and algal biomass into both marshes. Over the course of individual tidal cycles, concentrations of all parameters were variable and not related to tidal stage. Heterotrophic activity measured by the uptake of 3 H-thymidine, was found predominantly in the smallest particle size fractions ( <1•0 pin). Thymidine uptake was correlated with temperature (r=0•48, P<0•01), and bacterial productivity was estimated to be 7 to 42 μg C l -1 day -1 .

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A note on the relocation of marsh debris during a storm surge

Cited by 23 publications

References 1 publication

Organic carbon flux through a Delaware Bay salt marsh: tidal exchange, particle size distribution, and storms

Organic carbon flux through a Delaware Bay salt marsh: tidal exchange, particle size distribution, and storms

Juncus roemerianus production and decomposition along gradients of salinity and hydroperiod

Nutrient flux in the Rhode River: Tidal transport of microorganisms in brackish marshes

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