The Influence of Animals on Phosphorus Cycling in Lake Ecosystems

Andersson, Gunnar; Granéli, Wilhelm; Stenson, Jan A. E.

doi:10.1007/978-94-009-3109-1_16

Cited by 61 publications

(55 citation statements)

References 52 publications

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“…At the same time, estimated in littoral site of Guozhenghu, maximum SRP excretion rate from benthos (173 µmol P·m -2 ·d -1 ) is a major portion (62%) of the maximum total phosphorus release in this lake. Other studies also show that contribution of SRP excretion by benthic animals to the total phosphorus release is very important and is usually varying between 4 and 17% (Andersson et al, 1988;Devine and Vanni, 2002;Postolache et al, 2006). Furthermore, in dry years with low phosphorus input from watershed phosphorus excretion mediated by animals can reach maximum 90% of the total phosphorus release (Devine and Vanni, 2002).…”

Section: Discussionmentioning

confidence: 99%

“…Phosphorus can be released from sediments through a variety of mechanisms, including activities of benthic animals. A lot of studies have confirmed important regulating role of benthic invertebrates in nutrient cycling by different mechanisms such as bioturbation, vertical migration and direct excretion (Andersson et al, 1988;Vanni, 2002;Griffiths, 2006). According to Vanni (2002), aquatic animals excrete phosphorus directly by egestion, releasing particulate phosphorus with feces and dissolved phosphorus with urine.…”

Section: Introductionmentioning

confidence: 99%

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Phosphorus flux by macrobenthic invertebrates in a shallow eutrophic lake Donghu: spatial change

Berezina

Голубков

et al. 2011

Knowl. Managt. Aquatic Ecosyst.

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We estimated phosphorus flux mediated by benthic invertebrates from the sediments to the water in a shallow eutrophic lake (lake Donghu, central China) and quantified spatial (littoral and central sites) and specific (among different benthic taxa) differences. The mass-specific excretion rates of phosphorus (soluble reactive phosphorus (SRP, ηmol·mg dry mass -1 ·h -1 ) by benthic invertebrates (abundant taxa) were estimated experimentally and calculated as a final minus of initial nutrient mass divided by dry mass of organisms. Results showed high importance of chironomid larvae as a contributor to the total P flux from sediments to water in shallow lake Donghu. Benthic biomass (from 0.002 to 32.8 g dry mass·m -2 ) distribution and species composition (31 taxa) were studied (October 2009) in three regions of lake Donghu (Guozhenghu, Miaohu, Yujiahu) using samples from three depths: the shallow littoral site (0.2-1 m depth), central site with 2 m depth, and central site with more than 3 m depth. The total estimated SRP excretion by benthic invertebrate reaches 36% of the direct SPR flux from sediments to water in this lake. The phosphorus regeneration by benthic animals is the most intensive in the shallow littoral sites (69.5 µmol P·m -2 ·day -1 ) and at least 20 times greater than in central sites (3.4 µmol P·m -2 ·day -1 ) of lake Donghu. The results support notable differences in the SRP excretion rates between taxa and sites. The spatial difference in the SRP flux might be considered as a general feature of lakes with periodical changing oxygen near bottom. RÉSUMÉFlux de phosphore dû aux invertébrés macrobenthiques dans un lac peu profond et eutrophe, le lac Donghu.Nous avons estimé le flux de phosphore des sédiments vers l'eau créé par les invertébrés benthiques dans un lac peu profond eutrophe (lac Donghu, centre de la Chine) et quantifié les différences spatiales (sites du littoral et du centre) et spéci-fiques (entre différents taxons benthiques). Les taux d'excrétion du phosphore (phosphore réactif soluble : SRP, ηmol·mg de masse sèche -1 ·h -1 ) par les invertébrés Mots-clés :phosphore, excrétion, zoobenthos, Knowledge and Management of Aquatic Ecosystems (2011) 402, 11 © ONEMA, 2011 http://www.kmae-journal.org DOI: 10.1051/kmae/2011073 L. Ji et al.: Knowl. Managt. Aquatic Ecosyst. (2011 11p2 benthiques (taxons abondants) ont été estimés expérimentalement et calculés comme la différence entre masses de nutriment finale et initiale divisée par la masse sèche des organismes. Les résultats ont montré une grande importance des larves de chironomides en tant que contributeurs au flux de P total de sédiments vers l'eau dans le lac peu profond Donghu. La distribution de la biomasse benthique (de 0,002 à 32,8 g de matière sèche·m -2 ) et sa composition spécifique (31 taxons) ont été étudiées (octobre 2009) dans trois régions du lac Donghu (Guozhenghu, Miaohu, Yujiahu) en utilisant des échantillons provenant de trois profondeurs : le site peu profond du littoral (0,2-1 m de profondeur), le site c...

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Phosphorus flux by macrobenthic invertebrates in a shallow eutrophic lake Donghu: spatial change

Berezina

Голубков

et al. 2011

Knowl. Managt. Aquatic Ecosyst.

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“…Hutchison 1950;Bédard et al 1980;Stempniewicz 2005). Much higher phosphate content is present in fish tissues in comparison with zooplankton (Andersson et al 1988). Separately, different bacterial floras may develop on particular types of guano.…”

Section: Discussionmentioning

confidence: 99%

Guano deposition and nutrient enrichment in the vicinity of planktivorous and piscivorous seabird colonies in Spitsbergen

et al. 2012

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The crucial role of seabirds in the enrichment of nutrient-poor polar terrestrial ecosystem is well-known. However, no studies have examined the potentially different impacts associated with piscivorous and planktivorous bird colonies on the surrounding tundra soils. Therefore, we compared guano deposition and physical and chemical parameters of soil near two large seabird colonies, one of planktivorous little auks (Alle alle) and the other comprising piscivorous Brunnich's guillemots (Uria lomvia) and kittiwakes (Rissa tridactyla). The two colonies generated similar levels of guano deposition, with the intensity of deposition decreasing away from the colony. Guano deposition adjacent to both colonies was considerably higher than that in control areas. The increased guano supply around colonies significantly enhanced soil conductivity, nitrogen (NO 3 -, NH 4 ? ), potassium (K ? ), and phosphate (PO 4 3-) ion concentrations and led to reduced pH values. Guano deposition explained 84 % (piscivorous colony) and 67 % (planktivorous colony) of the total variation in the tested soil parameters. Planktivore and piscivore colonies affected adjacent tundra in different ways. The phosphate content and pH value of soil influenced by piscivores were significantly higher than values measured in planktivore-influenced soil. The gradient of guano deposition and associated ion content in the soil decreased more rapidly with distance from the piscivore colony. Climate-induced changes in populations of planktivorous and piscivorous seabirds are expected in the study region and may therefore have substantial consequential effects on Arctic terrestrial ecosystems.

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“…Fish can alter both the internal cycling of nutrients and primary producer biomass in aquatic systems through a variety of mechanisms such as incorporating nutrients into body tissue (Kitchell et al 1975;Andersson et al 1988;Deegan 1993), decomposition of fish tissues (Richey et al 1975;Durbin et al 1979;Threlkeld 1987;Parmenter andLamarra 1991), or excretion (Lamar-r-a 1975;Shapiro and Carlson 1982;Brabrand et al 1990). Excretion by fishes has been shown to affect phytoplankton biomass, productivity, and community structure (Reinertsen et al 1986;Vanni and Findlay 1990;Schindler 1992;Vanni and Layne 1997).…”

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confidence: 99%

Nitrogen and phosphorus excretion by detritivorous gizzard shad in a reservoir ecosystem

Schaus

Vanni

Wissing

et al. 1997

Limnology & Oceanography

177

206

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The detritivorous fish, gizzard shad (Dorosoma cepedianum), provides nutrients to phytoplankton in reservoirs by ingesting organic detritus associated with sediments and excreting substantial quantities of nutrients such as N and P in soluble forms that are highly available to phytoplankton, We estimated nutrient excretion by gizzard shad in a eutrophic reservoir (Acton Lake, Ohio) during April-October 1994 by measuring N and P excretion of fieldcaught fish (n = 135). Excretion rates were then extrapolated to nutrient release by the gizzard shad population using quadrat rotenone biomass estimates, electrofishing surveys, and historic seasonal trends. N and P excretion were positively correlated with fish wet mass and temperature, but mass-specific excretion declined with increasing fish mass. Lakewidc gizzard shad biomass in July 1994 was 417 kg ha -I, Our estimates of nutrient excretion by the gizzard shad population ranged from 0.487 to 0.769 pmol NH,-N liter-' d-l and 0.022 to 0.057 pmol soluble reactive phosphorus liter -I d .I, with the highest excretion occurring during mid-summer through early fall. The low N : P ratio at which gizzard shad excrete [mean molar N : P = 16.75 (kO.89 SE)] may alter phytoplankton community composition, favoring cyanobacteria. Our results indicate that nutrient excretion by detritivorous fish can be an important source of nutrients to open waters, especially when other sources of nutrients are reduced.

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The Influence of Animals on Phosphorus Cycling in Lake Ecosystems

Cited by 61 publications

References 52 publications

Phosphorus flux by macrobenthic invertebrates in a shallow eutrophic lake Donghu: spatial change

Phosphorus flux by macrobenthic invertebrates in a shallow eutrophic lake Donghu: spatial change

Guano deposition and nutrient enrichment in the vicinity of planktivorous and piscivorous seabird colonies in Spitsbergen

Nitrogen and phosphorus excretion by detritivorous gizzard shad in a reservoir ecosystem

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