- Title
- Spatial and temporal changes in estuarine food web structure: differential contributions of marsh grass detritus
- Creator
- Bergamino, Leandro, Richoux, Nicole B
- Subject
- To be catalogued
- Date
- 2015
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/457295
- Identifier
- vital:75623
- Identifier
- xlink:href="https://doi.org/10.1007/s12237-014-9814-5"
- Description
- We measured stable isotope signatures and fatty acid profiles in dominant consumers and basal food sources to assess spatial and temporal changes in the trophic structure within an estuarine ecosystem. The consumers analyzed included zooplankton, benthic invertebrates and fishes from the upper, middle and lower reaches of the estuary collected over four seasons. The contributions of different food sources to the consumers were assessed using the isotopic mixing model stable isotope analysis in R (SIAR). Our stable isotope and fatty acid data indicated that the food webs differed significantly among reaches and seasons within the estuary. Benthic invertebrates exhibited lower carbon isotopic (δ13C) values in the upper reaches of the estuary during all seasons, with lowest values occurring during autumn. In contrast, nitrogen isotopic (δ15N) values of consumers were higher in the upper reaches of the estuary and were highest during summer and spring. SIAR models and fatty acid compositional data both indicated greater utilization of marsh grass by consumers inhabiting the lower reaches of the estuary, particularly during autumn and winter. Our data indicated that differential inputs of detritus contributed to spatial changes in the benthic estuarine food web structure and that the trends changed throughout the year.
- Format
- computer, online resource, application/pdf, 1 online resource (16 pages), pdf
- Publisher
- SpringerLink
- Language
- English
- Relation
- Estuaries and Coasts, Bergamino, L. and Richoux, N.B., 2015. Spatial and temporal changes in estuarine food web structure: differential contributions of marsh grass detritus. Estuaries and coasts, 38, pp.367-382, Estuaries and Coasts volume 38 p. 367 2015 1559-2731
- Rights
- Publisher
- Rights
- Use of this resource is governed by the terms and conditions of the SpringerLink Terms of Use Statement ( https://link.springer.com/termsandconditions)
- Rights
- Closed Access
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- Visitors: 40
- Downloads: 2
Collections
Richoux, Nicole Bertine (Assoc Prof)
SDG 15. Life On Land
RU Department of Zoology and Entomology
| Thumbnail | File | Description | Size | Format | |||
|---|---|---|---|---|---|---|---|
| View Details | SOURCE1 | Spatial and temporal changes in estuarine food web structure.pdf | 625 KB | Adobe Acrobat PDF | View Details |