The food web positioning and trophic niche of the non-indigenous round goby: a comparison between two Baltic Sea populations

The food web positioning and trophic niche of the non-indigenous round goby: a comparison between... Hydrobiologia https://doi.org/10.1007/s10750-018-3667-z PRIMARY R ESEARCH P APER The food web positioning and trophic niche of the non-indigenous round goby: a comparison between two Baltic Sea populations . . . Heidi Herlevi Katri Aarnio Riikka Puntila-Dodd Erik Bonsdorff Received: 5 October 2017 / Revised: 14 May 2018 / Accepted: 24 May 2018 Springer International Publishing AG, part of Springer Nature 2018 Abstract The food web positioning of the non- isotopic niche overlap with large perch. The trophic native round goby (Neogobius melanostomus Pallas, position of round gobies in Mariehamn is significantly 1814) was studied in a new invasive population in higher than in Hel, likely due to different prey items. Mariehamn, Aland Islands (northern Baltic Sea). The Furthermore, the ontogenetic patterns differ between trophic position and isotopic niche space was com- the two invasive populations, also suggesting differing pared to other benthic-feeding fish species in the same resource and habitat availability and levels of habitat. The trophic position (TP) was estimated based intraspecific competition between areas. 13 12 on stable isotope analysis of carbon ( C: C) and 15 14 nitrogen ( N: N) ratios and compared to that of an Keywords Trophic niche space  Stable isotope established invasive http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Hydrobiologia Springer Journals

The food web positioning and trophic niche of the non-indigenous round goby: a comparison between two Baltic Sea populations

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Publisher
Springer International Publishing
Copyright
Copyright © 2018 by Springer International Publishing AG, part of Springer Nature
Subject
Life Sciences; Freshwater & Marine Ecology; Ecology; Zoology
ISSN
0018-8158
eISSN
1573-5117
D.O.I.
10.1007/s10750-018-3667-z
Publisher site
See Article on Publisher Site

Abstract

Hydrobiologia https://doi.org/10.1007/s10750-018-3667-z PRIMARY R ESEARCH P APER The food web positioning and trophic niche of the non-indigenous round goby: a comparison between two Baltic Sea populations . . . Heidi Herlevi Katri Aarnio Riikka Puntila-Dodd Erik Bonsdorff Received: 5 October 2017 / Revised: 14 May 2018 / Accepted: 24 May 2018 Springer International Publishing AG, part of Springer Nature 2018 Abstract The food web positioning of the non- isotopic niche overlap with large perch. The trophic native round goby (Neogobius melanostomus Pallas, position of round gobies in Mariehamn is significantly 1814) was studied in a new invasive population in higher than in Hel, likely due to different prey items. Mariehamn, Aland Islands (northern Baltic Sea). The Furthermore, the ontogenetic patterns differ between trophic position and isotopic niche space was com- the two invasive populations, also suggesting differing pared to other benthic-feeding fish species in the same resource and habitat availability and levels of habitat. The trophic position (TP) was estimated based intraspecific competition between areas. 13 12 on stable isotope analysis of carbon ( C: C) and 15 14 nitrogen ( N: N) ratios and compared to that of an Keywords Trophic niche space  Stable isotope established invasive

Journal

HydrobiologiaSpringer Journals

Published: Jun 2, 2018

References

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