Phosphorus excretion by some zoobenthos in a eutrophic freshwater lake and its temperature dependency.

Fukuhara, Haruo; Yasuda, Kaori

doi:10.3739/rikusui.46.287

Cited by 28 publications

(30 citation statements)

References 29 publications

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“…from the Gulf of Mexico was 0.7 nmol N mg dry mass ¡1 h ¡1 at 20À23 C (Gardner et al 1993), which was comparable to the results in this study. Fukuhara and Yasuda (1985) reported the SRP excretion rate of 0.07 nmol P mg dry mass ¡1 h ¡1 for Limnodrilus at 15 C (incubation time 7 h), which was lower than the result in this study. The excretion rates by L. hoffmeisteri in this study (20 C) were lower than the results (at 22 C) reported by Devine and Vanni (2002).…”

Section: Discussioncontrasting

confidence: 56%

“…Several studies have shown that the mass-specific excretion rate by macrozoobenthos depended on the incubation time and temperature. The nutrient excretion rate generally tended to increase with temperature, and decrease with incubation time (Bayne & Scullard 1977;Fukuhara & Yasuda 1985Gulati et al 1989;Devine & Vanni 2002). Moreover, the excretion rate in natural conditions might be affected by food availability and ingestion rates (Johannes 1964;Mather et al 1995).…”

Section: Discussionmentioning

confidence: 99%

“…Nutrients can be released from sediments through a variety of mechanisms, including physical, chemical and biological mechanisms (Zhang et al 2011). Among several possible processes, nutrient excretion by macrozoobenthos may play an important role in regulating nutrient release across the sedimentÀwater interface (Fukuhara & Yasuda 1985;Fukuhara & Sakamoto 1987;Fukuhara & Yasuda 1989;Devine & Vanni 2002).…”

Section: Introductionmentioning

confidence: 99%

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

Song

Cao

et al. 2015

Journal of Freshwater Ecology

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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.

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Section: Discussioncontrasting

confidence: 56%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Song

Cao

et al. 2015

Journal of Freshwater Ecology

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“…(Waters 1977). # Fukuhara and Yasuda (1985) report data on P excretion, while Fukuhara and Yasuda (1989) report N excretion data, from the same study.…”

Section: áDmentioning

confidence: 99%

Tube‐dwelling invertebrates: tiny ecosystem engineers have large effects in lake ecosystems

Hölker

Vanni

Kuiper

et al. 2015

Ecological Monographs

135

118

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Abstract. There is ample evidence that tube-dwelling invertebrates such as chironomids significantly alter multiple important ecosystem functions, particularly in shallow lakes. Chironomids pump large water volumes, and associated suspended and dissolved substances, through the sediment and thereby compete with pelagic filter feeders for particulate organic matter. This can exert a high grazing pressure on phytoplankton, microorganisms, and perhaps small zooplankton and thus strengthen benthic-pelagic coupling. Furthermore, intermittent pumping by tube-dwelling invertebrates oxygenates sediments and creates a dynamic, three-dimensional mosaic of redox conditions. This shapes microbial community composition and spatial distribution, and alters microbe-mediated biogeochemical functions, which often depend on redox potential. As a result, extended hotspots of element cycling occur at the oxic-anoxic interfaces, controlling the fate of organic matter and nutrients as well as fluxes of nutrients between sediments and water. Surprisingly, the mechanisms and magnitude of interactions mediated by these organisms are still poorly understood. To provide a synthesis of the importance of tube-dwelling invertebrates, we review existing research and integrate previously disregarded functional traits into an ecosystem model. Based on existing research and our models, we conclude that tube-dwelling invertebrates play a central role in controlling water column nutrient pools, and hence water quality and trophic state. Furthermore, these tiny ecosystem engineers can influence the thresholds that determine shifts between alternate clear and turbid states of shallow lakes. The large effects stand in contrast to the conventional limnological paradigm emphasizing predominantly pelagic food webs. Given the vast number of shallow lakes worldwide, benthic invertebrates are likely to be relevant drivers of biogeochemical processes at regional and global scales, thereby mediating feedback mechanisms linked to climate change.

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“…There was a positive dependence on temperature, but with regard to differences between the two types of invertebrates, the results were equivocal. Gardner and others (1981), Fukuhara and Yasuda (1985) and Fukuhara and Sakamoto (1987) measured higher excretion rates in chironomids, whereas Devine and Vanni (2002) measured higher excretion rates in tubificids.…”

Section: Possible Role Of Benthic Invertebrates In Internal Loading Imentioning

confidence: 99%

Technical evaluation of a total maximum daily load model for Upper Klamath and Agency Lakes, Oregon

Wood¹,

Wherry²,

Carter³

et al. 2013

Open-File Report

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Phosphorus excretion by some zoobenthos in a eutrophic freshwater lake and its temperature dependency.

Abstract: The phosphorus excretion rate and its temperature dependency were investigated experimentally in four dominant species of zoobenthos in eutrophic freshwater lakes in and Kaori YASUDA*

Cited by 28 publications

References 29 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)

Tube‐dwelling invertebrates: tiny ecosystem engineers have large effects in lake ecosystems

Technical evaluation of a total maximum daily load model for Upper Klamath and Agency Lakes, Oregon

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