Assessment of the spatial and temporal variations in periphyton communities along a small temperate river system: A multimetric and stable isotope analysis approach

Stable isotope analysis was used to identify the major sources of carbon utilized by fish and aquatic invertebrates in the Koroc River, a tundra river system in northern Quebec. Juvenile arctic char (Salvelinus alpinus), together with adults and juveniles of other species of fish in freshwater, obtained their carbon from either allochthonous or autochthonous sources within the river system, via the invertebrate fauna. However, adult anadromous char caught in the river clearly derived their biomass carbon from feeding at sea. Despite the limited development of riparian vegetation throughout much of the lower river catchment, terrestrial organic matter was the most likely source of energy fueling the animal communities of small tributary streams and rapids of the mainstem Koroc. In contrast, epilithic algae made a significant contribution to food chains within Alik Lake, a deep basin along the main river channel. Aquatic mosses appeared to be of, at most, tertiary importance as a source of energy to the animal communities of the lake, despite their considerable biomass.

Download Full-text

Does trawl fisheries affect the diet of fishes? A stable isotope analysis approach

Isotopes in Environmental and Health Studies ◽

10.1080/10256016.2019.1626381 ◽

2019 ◽

Vol 55 (4) ◽

pp. 327-343 ◽

Cited By ~ 1

Author(s):

Manuela Funes ◽

Cristian Marinao ◽

David E. Galván

Keyword(s):

Stable Isotope ◽

Stable Isotope Analysis ◽

Isotope Analysis ◽

Analysis Approach ◽

Trawl Fisheries

Download Full-text

Multiple habitat use of Japanese sea bass Lateolabrax japonicus in the estuary region of the Tone River system, implied by stable isotope analysis

Ichthyological Research ◽

10.1007/s10228-018-0655-2 ◽

2018 ◽

Vol 66 (1) ◽

pp. 172-176 ◽

Cited By ~ 2

Author(s):

Yoichi Miyake ◽

Hikaru Itakura ◽

Aigo Takeshige ◽

Hiroaki Onda ◽

Akira Yamaguchi ◽

...

Keyword(s):

Stable Isotope ◽

Habitat Use ◽

Stable Isotope Analysis ◽

Isotope Analysis ◽

River System ◽

Sea Bass ◽

Lateolabrax Japonicus ◽

Japanese Sea Bass

Download Full-text

Evaluation of Wood Pretreatments on Oak and Cedar

Radiocarbon ◽

10.1017/s0033822200017860 ◽

1997 ◽

Vol 40 (1) ◽

pp. 45-50 ◽

Cited By ~ 57

Author(s):

S. T. Hoper ◽

F. G. McCormac ◽

A. G. Hogg ◽

T. F. G. Higham ◽

M. J. Head

Keyword(s):

New Zealand ◽

Stable Isotope ◽

High Precision ◽

Stable Isotope Analysis ◽

Isotope Analysis ◽

Temporal Variations ◽

Separate Study ◽

Pretreatment Processes

In a separate study, we conducted a series of high-precision radiocarbon measurements using wood from Britain and New Zealand to investigate interhemispheric offsets and possible temporal variations. To minimize variability associated with different species, the pretreatment of the oak (Quercus patraea) and cedar (Librocedrus bidwilli) was to α-cellulose for both. This study investigates the thoroughness of a range of pretreatment processes by the stable isotope analysis of the products.

Download Full-text

Stable isotope analysis spills the beans about spatial variance in trophic structure in a fish host – parasite system from the Vaal River System, South Africa

International Journal for Parasitology Parasites and Wildlife ◽

10.1016/j.ijppaw.2020.05.011 ◽

2020 ◽

Vol 12 ◽

pp. 134-141 ◽

Cited By ~ 1

Author(s):

Beric M. Gilbert ◽

Milen Nachev ◽

Maik A. Jochmann ◽

Torsten C. Schmidt ◽

Daniel Köster ◽

...

Keyword(s):

South Africa ◽

Stable Isotope ◽

Stable Isotope Analysis ◽

Trophic Structure ◽

Isotope Analysis ◽

River System ◽

Fish Host ◽

Spatial Variance ◽

Vaal River ◽

Host Parasite

Download Full-text

Sistem Imbuhan Air Tanah Karst Pada Sub-sistem Hidrogeologi Wonosari – Baron, Kabupaten Gunungkidul, Daerah Istimewa Yogyakarta, Berdasarkan Analisis Isotop 18O dan 2H

Jurnal Lingkungan dan Bencana Geologi ◽

10.34126/jlbg.v9i3.235 ◽

2018 ◽

Vol 9 (3) ◽

pp. 143

Author(s):

Taat Setiawan, ST. MT. ◽

Soeharti Isnaini ◽

Novi M.A Asghaf ◽

Idham Effendi

Keyword(s):

Stable Isotope ◽

Groundwater Recharge ◽

Stable Isotope Analysis ◽

Isotope Analysis ◽

River System ◽

Karst Groundwater ◽

Underground River

AbstrakPenelitian ini dilakukan untuk mengidentifikasi sistem imbuhan air tanah karst Kab. Gunungkidul, khusunya sub-sistem Wonosari Baron, berdasarkan analisis isotop stabil air tanah (18O dan 2H). Hasil penelitian menunjukkan beberapa karakter sistem imbuhan air tanah. Air tanah pada dataran Wonosari menunjukkan keterkaitan dengan imbuhan yang bersifat lokal hingga menengah. Air tanah pada mata air permanen dan sistem sungai bawah tanah Bribin – Seropan menunjukkan keterkaitan dengan sistem imbuhan yang bersifat regional. Air tanah pada kompleks mata air Baron dan Ngobaran menunjukkan keterkaitan dengan imbuhan yang bersifat lokal hingga regional.Kata kunci : isotop 18O dan 2H, air tanah karst, Gunungkidul.AbstractThis research was conducted to identify karst groundwater recharge of Gunungkidul Regency, especially the Wonosari Baron sub-system, based on stable isotope analysis of groundwater (18O and 2H). The results show some character of groundwater recharge system. Groundwater on the Wonosari plain shows a correlation with local to medium-recharge system. Groundwater in permanent springs and the Bribin - Seropan underground river system show a linkage to the regional recharge system. Groundwater in the Baron and Ngobaran springs complex is associated with local to regional recharge system.Keywords : isotope of 18O and 2H, karstic groundwater, Gunungkidul.

Download Full-text