Ecology of Estuarine Macrobenthos

Herman, Peter M. J.; Middelburg, Jack J.; Koppel, Johan van de; Heip, C.H.R.

doi:10.1016/s0065-2504(08)60194-4

Cited by 351 publications

(270 citation statements)

References 139 publications

Supporting

Mentioning

249

Contrasting

Unclassified

Order By: Relevance

“…The highest abundance and biomass of macrozoobenthos was observed in zone I, which was attributed to the highest trophic level and food availability. The food quantity and availability might be the limiting factors for benthic abundance and biomass in lacustrine benthic systems (Herman et al 1999;Sousa et al 2006;Zbikowski & Kobak 2007). As a consequence of abundant submerged macrophytes and the lowest trophic level, macrozoobenthos in zone II were characterized by diverse species richness and lower abundance.…”

Section: Discussionmentioning

confidence: 99%

Spatial variation in nutrient excretion by macrozoobenthos in a Chinese large shallow lake (Lake Taihu)

Song

Cao

et al. 2015

Journal of Freshwater Ecology

View full text Add to dashboard Cite

Nutrient (N and P) fluxes via excretion by macrozoobenthos were estimated in a Chinese large shallow lake (Lake Taihu). The spatial variation in nutrient fluxes and the differences of specific excretion rate among six dominant species were quantified. The distribution of dominant species varied significantly among different trophic lake areas. The maximum biomass of macrozoobenthos was calculated in phytoplanktondominated lake areas, while the minimum occurred in macrophyte-dominated lake areas. Mass-specific excretion rate among six dominant species was significantly different. Our results indicated that nutrient flux through benthic invertebrate varied spatially, which was affected by dominant benthic species composition and biomass. Limnodrilus hoffmeisteri, Corbicula fluminea and Bellamya aeruginosa made the greatest contribution to the total nutrient fluxes in Lake Taihu. N and P fluxes excreted by macrozoobenthos were greatest in phytoplankton-dominated lake areas (1037.7 mmol N m ¡2 d ¡1 and 111.74 mmol P m ¡2 d ¡1 ), which were almost 20 times greater than in the other lake areas. Since N and P excreted by macrozoobenthos could be rapidly absorbed by algae, macrozoobenthos might be a significant nutrient source contributing to frequent algal blooms in Lake Taihu.

show abstract

Section: Discussionmentioning

confidence: 99%

Spatial variation in nutrient excretion by macrozoobenthos in a Chinese large shallow lake (Lake Taihu)

Song

Cao

et al. 2015

Journal of Freshwater Ecology

View full text Add to dashboard Cite

show abstract

“…These benthic algae are consequently an important carbon source for benthic heterotrophs (e.g. Admiraal et al, 1983;Herman et al, 1999;Hagerthey et al, 2002) and can significantly affect the exchange of oxygen and nutrients across the sediment-water interface (Risgaard-Petersen et al, 1994). The MPB, particularly diatoms and cyanophytes, has been reported to stabilize the sediment surface against re-suspension by the extrusion of extracellular polymeric substances (Holland et al, 1974;Paterson & Black, 1999;Staats et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Microphytobenthic dynamics in a Wadden Sea intertidal flat – Part II: Seasonal and spatial variability of non-diatom community components in relation to abiotic parameters

Scholz

Liebezeit

2012

European Journal of Phycology

View full text Add to dashboard Cite

The microphytobenthos colonizing the intertidal flats forms an important component of the Wadden Sea. Ten sampling points along a 1-km transect were studied in a fringe area of the Soltho¨rn tidal flat, southern North Sea, in order to determine seasonal differences in the microphytobenthos. An accompanying paper deals with the major component of the flora, the diatoms; here we, focus on the minor taxonomic groups. From May 2008 to May 2009 surface sediments were collected during low tide. Variation of environmental factors as well as microphytobenthic density (abundance and chlorophyll a) were monitored. The area investigated was a mixed-sediment mudflat, with a gradient from coarse to fine. Highest biomass was obtained in summer 2008 with 215.9 AE 12.6 mg chlorophyll a m -2 . In late autumn the chlorophyll a concentration decreased continuously at all investigated stations. Lowest values were detected in December 2008. Species abundances varied considerably both along the transect and seasonally, depending on species-specific requirements as well as hydrodynamic conditions (tidal currents). Higher densities of benthic pro-and eukaryotic microalgae were observed in sites characterized by fine sediments. Apart from the diatoms, the most abundant microphytobenthic group was the cyanophytes. Coccoid cyanophytes, mainly Merismopedia sp., were most abundant during summer, with cell numbers up to 5.72 Â 10 6 cells cm À2, while diatoms dominated in winter, spring and autumn. Filamentous cyanophytes, particularly Microcoleus chthonoplastes, were most abundant during autumn, while coccoid chlorophytes (spring: Chlorococcum submarinum, Crucigenia tetrapedia, Tetraselmis suecica), euglenophytes (summer: Euglena obtusa), dinophytes (autumn: Amphidinium operculatum, A. herdmanii) and cryptophytes (autumn: Hillea marina, Hemiselmis virescens) contributed to the microphytobenthos during warmer seasons. The statistical analysis confirmed that the composition of the microphytobenthos was related to sediment features and to characteristics of particular seasons.

show abstract

“…An indicator of OM sources and the quality (degradation state) of the bulk OM pool: planktonic OM typically has C : N ratios of 5-10 (5-7 in fresh planktonic OM; Emery and Uchupy 1984) and fresh terrestrial OM usually has C : N ratios .20 (Burdige 2006). There is an assumption that increasing N (and decreasing C : N ratios) equates to higher nutritional value and preferential mineralisation, although N may become incorporated in recalcitrant compounds (for a review, see Herman et al 1999 (Glud 2008). Shown to correlate with the rate of OM input to the seabed (Henrichs 1992).…”

Section: Introductionmentioning

confidence: 99%

Baseline biogeochemical data from Australia's continental margin links seabed sediments to water column characteristics

Radke

Nicholas

Thompson

et al. 2017

Mar. Freshwater Res.

View full text Add to dashboard Cite

Abstract. Surficial marine sediments are an important source of nutrients for productivity and biodiversity, yet the biogeochemistry of these sediments is poorly known in Australia. Seabed samples were collected at .350 locations in Australia's western, northern and eastern continental margins during Federal Government surveys . Parameters analysed included measures of organic matter (OM) source (d 13 C, d 15 N and C : N ratios), concentration (percentage total organic carbon, %TOC, and surface area-normalised TOC, OC : SA) and bioavailability (chlorin indices, total reactive chlorins, total oxygen uptake, total sediment metabolism (TSM), sediment oxygen demand (SOD) and SOD and TSM normalised against TOC). The aim of the present study was to summarise these biogeochemical 'baseline' data and make contextualised inferences about processes that govern the observed concentrations. The OM was primarily from marine sources and the OC : SA broadly reflected water column productivity (based on Moderate Resolution Imaging Spectroradiometer, MODIS). Approximately 40% of sediments were organic poor by global standards, reflecting seawater oligotrophy; ,12% were organic rich due to benthic production, high water column productivity and pockmark formation. OM freshness varied due to pigment degradation in water columns and dilution with refractory OM in reworked sediments. d 15 N values confirmed the importance of N 2 fixation to Timor Sea productivity, and point to recycling of fixed nitrogen within food chains in Western Australia.

show abstract

Ecology of Estuarine Macrobenthos

Cited by 351 publications

References 139 publications

Spatial variation in nutrient excretion by macrozoobenthos in a Chinese large shallow lake (Lake Taihu)

Spatial variation in nutrient excretion by macrozoobenthos in a Chinese large shallow lake (Lake Taihu)

Microphytobenthic dynamics in a Wadden Sea intertidal flat – Part II: Seasonal and spatial variability of non-diatom community components in relation to abiotic parameters

Baseline biogeochemical data from Australia's continental margin links seabed sediments to water column characteristics

Contact Info

Product

Resources

About