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Isotopic variation complicates analysis of trophic relations within the fish community of Plußsee: a small, deep, stratifying lake

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Isotopic variation complicates analysis of trophic relations within the fish community of Plußsee: a small, deep, stratifying lake. / Harrod, Christopher; Grey, Jonathan.
In: Archiv für Hydrobiologie, Vol. 167, No. 1-4, 09.2006, p. 281-299.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Harrod, C & Grey, J 2006, 'Isotopic variation complicates analysis of trophic relations within the fish community of Plußsee: a small, deep, stratifying lake', Archiv für Hydrobiologie, vol. 167, no. 1-4, pp. 281-299. https://doi.org/10.1127/0003-9136/2006/0167-0281

APA

Harrod, C., & Grey, J. (2006). Isotopic variation complicates analysis of trophic relations within the fish community of Plußsee: a small, deep, stratifying lake. Archiv für Hydrobiologie, 167(1-4), 281-299. https://doi.org/10.1127/0003-9136/2006/0167-0281

Vancouver

Harrod C, Grey J. Isotopic variation complicates analysis of trophic relations within the fish community of Plußsee: a small, deep, stratifying lake. Archiv für Hydrobiologie. 2006 Sept;167(1-4):281-299. doi: 10.1127/0003-9136/2006/0167-0281

Author

Harrod, Christopher ; Grey, Jonathan. / Isotopic variation complicates analysis of trophic relations within the fish community of Plußsee : a small, deep, stratifying lake. In: Archiv für Hydrobiologie. 2006 ; Vol. 167, No. 1-4. pp. 281-299.

Bibtex

@article{2f465123b1fa448784c25e7f7a017d20,
title = "Isotopic variation complicates analysis of trophic relations within the fish community of Plu{\ss}see: a small, deep, stratifying lake",
abstract = "Analysis of carbon and nitrogen stable isotopes has allowed freshwater ecologists to examine lake food webs in increasing detail. Many such studies have highlighted the existence of separate within-lake pelagic and benthic-littoral food webs but are typically conducted on large (> 10 km2) lakes, whereas the majority of lakes are actually relatively small. We used stable isotope analysis (δ13C & δ15N) to examine trophic interactions between fish and their prey in Plu{\ss}see, as an example of a small, stratifying lake, and to determine whether separate pelagic/benthic-littoral food webs could be distinguished in such systems. Our results indicate that the Plu{\ss}see food web was complicated, and due to extensive intra-annual isotopic variation in zooplankton (e.g.cladoceran δ13C annual range = 25.6‰), it may be impossible to definitively assign consumers from small, eutrophic stratified lakes to pelagic or benthic-littoral food webs. We present evidence that some components of the Plu{\ss}see food web (large bream) may be subsidised by carbon of methanogenic origin.",
author = "Christopher Harrod and Jonathan Grey",
year = "2006",
month = sep,
doi = "10.1127/0003-9136/2006/0167-0281",
language = "English",
volume = "167",
pages = "281--299",
journal = "Archiv f{\"u}r Hydrobiologie",
issn = "0003-9136",
publisher = "E. Schweizerbart'sche Verlagsbuchhandlung",
number = "1-4",

}

RIS

TY - JOUR

T1 - Isotopic variation complicates analysis of trophic relations within the fish community of Plußsee

T2 - a small, deep, stratifying lake

AU - Harrod, Christopher

AU - Grey, Jonathan

PY - 2006/9

Y1 - 2006/9

N2 - Analysis of carbon and nitrogen stable isotopes has allowed freshwater ecologists to examine lake food webs in increasing detail. Many such studies have highlighted the existence of separate within-lake pelagic and benthic-littoral food webs but are typically conducted on large (> 10 km2) lakes, whereas the majority of lakes are actually relatively small. We used stable isotope analysis (δ13C & δ15N) to examine trophic interactions between fish and their prey in Plußsee, as an example of a small, stratifying lake, and to determine whether separate pelagic/benthic-littoral food webs could be distinguished in such systems. Our results indicate that the Plußsee food web was complicated, and due to extensive intra-annual isotopic variation in zooplankton (e.g.cladoceran δ13C annual range = 25.6‰), it may be impossible to definitively assign consumers from small, eutrophic stratified lakes to pelagic or benthic-littoral food webs. We present evidence that some components of the Plußsee food web (large bream) may be subsidised by carbon of methanogenic origin.

AB - Analysis of carbon and nitrogen stable isotopes has allowed freshwater ecologists to examine lake food webs in increasing detail. Many such studies have highlighted the existence of separate within-lake pelagic and benthic-littoral food webs but are typically conducted on large (> 10 km2) lakes, whereas the majority of lakes are actually relatively small. We used stable isotope analysis (δ13C & δ15N) to examine trophic interactions between fish and their prey in Plußsee, as an example of a small, stratifying lake, and to determine whether separate pelagic/benthic-littoral food webs could be distinguished in such systems. Our results indicate that the Plußsee food web was complicated, and due to extensive intra-annual isotopic variation in zooplankton (e.g.cladoceran δ13C annual range = 25.6‰), it may be impossible to definitively assign consumers from small, eutrophic stratified lakes to pelagic or benthic-littoral food webs. We present evidence that some components of the Plußsee food web (large bream) may be subsidised by carbon of methanogenic origin.

U2 - 10.1127/0003-9136/2006/0167-0281

DO - 10.1127/0003-9136/2006/0167-0281

M3 - Journal article

VL - 167

SP - 281

EP - 299

JO - Archiv für Hydrobiologie

JF - Archiv für Hydrobiologie

SN - 0003-9136

IS - 1-4

ER -