Identification of food sources of invertebrates from the seagrass Zostera marina community using carbon and sulfur stable isotope ratio and fatty acid analyses

Kharlamenko, Vladimir I.; Kiyashko, S. I.; Imbs, Andrey B.; Vyshkvartzev, D. I.

doi:10.3354/meps220103

Cited by 298 publications

(256 citation statements)

References 49 publications

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“…8 34 S values reported for Zostera spp. range from 9.1 to 17.6%c (Kharlamenko et al 2001 ;Oakes & Connolly 2004). The value of 6.9%c for mid-shore Z. capricorni in this study is the lowest recorded for this genus.…”

Section: Nomentioning

confidence: 84%

“…Sulfur isotope data could not be used in the mixing models owing to lack of values for MPB and because some potentially 34 S-depleted food sources such as sediment bacteria were not sampled (Kharlamenko et al 2001). Instead, literature values were used in the dual isotopic plots (Currin et al 1995).…”

Section: Sample Collectionmentioning

confidence: 99%

“…Seagrasses have been found to make little or no contribution to the diet of macroinvertebrates in several studies (Kitting et al 1984;Stephenson et al 1986;Lepoint et al 2000;Machas et al 2003), whereas others demonstrated the importance of seagrass production for the diet of a variety of invertebrates living within seagrass meadows (Boon et al 1997;Loneragan 1997;Marguillier et al 1997;Kharlamenko et al 2001;Vizzini et al 2002a,b;Connolly et al 2005a) or in adjacent areas (Connolly et al 2005b). Little is known about possible seasonal changes in the importance of seagrass to the diet of consumers.…”

Section: Introductionmentioning

confidence: 99%

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Macroinvertebrate diet in intertidal seagrass and sandflat communities: A study using C, N, and S stable isotopes

Leduc¹,

Probert²,

Frew³

et al. 2006

New Zealand Journal of Marine and Freshwater Research

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Most seagrass community food-web studies using stable isotopes have been carried out in subtidal habitats during one sampling event. We used C, N, and S stable isotopes to characterise the diet of the dominant macroinvertebrates found in intertidal Zostera capricorni and sandflat communities of southern New Zealand in late summer and winter. The range of δ 13 C and δ 34 S values for Z. capricorni was wide (>5‰), which highlights the importance of accounting for spatial and temporal variability in primary producer isotopic signatures. The range of δ 15 N values for Z. capricorni was comparatively small (

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Section: Nomentioning

confidence: 84%

Section: Sample Collectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Macroinvertebrate diet in intertidal seagrass and sandflat communities: A study using C, N, and S stable isotopes

Leduc¹,

Probert²,

Frew³

et al. 2006

New Zealand Journal of Marine and Freshwater Research

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Section: Lipid Biomarkers As Indicators Of Sources Of Organic Carbon mentioning

confidence: 94%

“…Volkman et al (1980). The PUFA 22:6(n-3) was also clustered on the periphery of the algal markers, most probably reflecting the fact that this fatty acid is produced by both microalgae (Volkman et al 1989) and sediment infauna (Kharlamenko et al 2001).The second cluster of fatty acids consisted predominantly of odd-chain fatty acids including the widely used bacterial markers i15:0 and ai15:0 (Findlay & Dobbs 1993), strongly suggesting that the fatty acids within this group were predominantly derived from bacterial sources. The unusual fatty acids 15:0 and 17:1(n-8) were present in high relative proportions at 66 Cook at al.…”

mentioning

confidence: 93%

Carbon and nitrogen cycling on intertidal mudflats of a temperate Australian estuary. III. Sources of organic matter

Cook¹,

Revill²,

Clementson³

et al. 2004

Mar. Ecol. Prog. Ser.

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The sources and cycling of organic matter on 2 mudflats in the Huon Estuary, SE Tasmania, were investigated over 4 seasons using pigment and lipid biomarkers as well as stable isotopes of carbon and nitrogen; 1 site was in the upper estuary,1 site was in a marine side-arm. The organic matter within the sediments at both sites was dominated by terrestrial sources, but most of this was refractory and only slowly remineralised. Significant, but seasonally variable, amounts of organic matter were derived from microphytobenthos (MPB), but this was rapidly remineralised and comprised only a minor fraction of the preserved sediment organic matter pool. Compound specific stable-isotope analysis of bacterial biomarkers suggested that the bacteria within the sediment were consuming microalgae-derived material. Separation of MPB from the sediment at the site in the upper estuary using the lens-tissue technique was found to significantly fractionate the algae community with cyanobacteria being enriched in the separated fraction. Nitrogen fixation probably contributed significantly to the growth requirements of cyanobacteria at the site in the upper estuary, as indicated by the low δ 15 N value of the cyanobacteria separated from the sediment.KEY WORDS: Microphytobenthos · Stable isotope · Compound-specific isotope-ratio mass spectrometry · Fatty acids · Sterols · Accessory pigment · Mudflat Resale or republication not permitted without written consent of the publisherMar Ecol Prog Ser 280: [55][56][57][58][59][60][61][62][63][64][65][66][67][68][69][70][71][72] 2004 1999, Cahoon & Safi 2002), but this may shift seasonally to chlorophytes and cyanobacteria (Barranguet et al. 1997). In some areas, intertidal sediments may be dominated by cyanobacteria where high rates of nitrogen fixation may supply a significant amount of nitrogen to the benthic community (Stal et al. 1984, Bautista & Paerl 1985, Stal 1995.A number of approaches have been used to estimate the contributions of organic matter from various sources to sediments. Isotope ratios of 13 C/ 12 C have been used to estimate the relative contribution of terrestrial and marine sources to sedimentary organic matter (Fry & Sherr 1984). While this approach is relatively simple and gives an integrated estimate of sources for the total carbon in the sample, it will only provide useful information when there are 2 welldefined end-members. Furthermore, this technique gives little information about the type of marine or terrestrial organic matter in question.The use of lipid and pigment biomarkers such as fatty acids and sterols can allow the sources of various subfractions of organic matter to be identified much more specifically than any of the above approaches. However, unambiguously assigning sources to biomarkers is difficult, as they are rarely produced by a single class of organism. The advent of compound-specific stableisotope analysis has provided a powerful new tool for the differentiation between 2 sources of the same biomarker, provided the isotopic sign...

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Seagrasses Communities

Currin¹

2003

Encyclopedia of Environmental Microbiology

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Identification of food sources of invertebrates from the seagrass Zostera marina community using carbon and sulfur stable isotope ratio and fatty acid analyses

Cited by 298 publications

References 49 publications

Macroinvertebrate diet in intertidal seagrass and sandflat communities: A study using C, N, and S stable isotopes

Macroinvertebrate diet in intertidal seagrass and sandflat communities: A study using C, N, and S stable isotopes

Carbon and nitrogen cycling on intertidal mudflats of a temperate Australian estuary. III. Sources of organic matter

Seagrasses Communities

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