Stable isotopes reveal post-release trophodynamic and ontogenetic changes in a released finfish, mulloway (Argyrosomus japonicus)

2010 ◽  
Vol 61 (3) ◽  
pp. 302 ◽  
Author(s):  
Matthew D. Taylor ◽  
Debashish Mazumder
Keyword(s):  
Stable Isotopes ◽  
Isotopic Composition ◽  
Turnover Rate ◽  
Isotope Composition ◽  
Wild Fish ◽  
Ontogenetic Changes ◽  
Nitrogen Stable Isotope ◽  
Δ13c And Δ15n ◽  
Carbon And Nitrogen ◽  
Nitrogen Isotopic Composition

Carbon and nitrogen stable isotope ratios were analysed for hatchery-reared, recaptured and wild mulloway, Argyrosomus japonicus, to investigate temporal and growth-related changes in isotopic composition for stocked fish after release, and to evaluate changes in isotopic composition in terms of ontogenetic dietary switches. δ13C and δ15N values decreased and increased, respectively, after release. The isotope composition of released fish was distinct from wild fish until 200 days after release, but after 200 days post-release fish did not differ significantly from wild fish of similar or greater sizes. Abrupt dietary transitions from crustaceans to teleost fish (>50 cm total length (TL)) were evident in a rapid δ13C and δ15N change in wild mulloway, and δ15N was significantly greater in wild fish >65 cm TL compared with wild fish <50 cm TL. Multivariate carbon and nitrogen isotopic data were suitable for separating stocked and wild fish for up to 200 days after release, but did not separate wild fish grouped according to dietary composition. Carbon and nitrogen isotopic composition closely reflected dietary transitions and rapid adaptation by stocked mulloway to wild diets, which was evident in a high tissue turnover rate of up to 0.017 day–1. Stable isotopes are a useful tool for examining the integration of released fish into stocked ecosystems and can be used to describe convergence in the diets of wild and released fish.

Replacement of Sulfur, Carbon, and Nitrogen in Tissue of Growing Broad Whitefish (Coregonus nasus) in Response to a Change in Diet Traced by δ34S, δ13C, and δ15N

1993 ◽  
Vol 50 (10) ◽  
pp. 2071-2076 ◽  
Author(s):  
R.H. Hesslein ◽  
K.A. Hallard ◽  
P. Ramlal
Keyword(s):  
Liver Tissue ◽  
Turnover Rate ◽  
Isotope Composition ◽  
Fish Tissue ◽  
Rate Of Change ◽  
Stable Isotope Composition ◽  
Δ13c And Δ15n ◽  
Carbon And Nitrogen ◽  
Slow Growing

We monitored the change in the isotope composition of sulfur, carbon, and nitrogen in broad whitefish (Coregonus nasus) tissues in response to a change in the isotope composition of their food. One of two batches of 2.5-yr-old fish raised in the laboratory were given a new food source with different δ34S, δ13C, and δ15N, which were monitored in muscle and liver tissue for 1 yr. A model including change due to tissue accumulation (growth) and metabolic replacement was developed. For all three isotopes, most of the change could be attributed to growth. Metabolic replacement expressed as a turnover rate was only 0.1 −0.2%∙d−1 and was similar for the three isotopes. Although liver tissue was −4.4 and −4.1‰, respectively, for δ34S and δ13C relative to muscle tissue, the response over time to the new food was the same as for muscle. We expect that the complete change in the isotope composition of fish tissue in response to a change in food could take years in slow-growing wild populations. The stable isotope composition would represent a long-term average of the food. In fast-growing fish the rate of change would directly reflect the growth rate.

scholarly journals Dietary and non-dietary contributions to among-individual variation in carbon and nitrogen isotopic composition of lake trout

2021 ◽  
Vol 123 ◽  
pp. 107349 ◽  
Author(s):  
T.A. Johnston ◽  
A.D. Ehrman ◽  
J.J. Montgomery ◽  
H.K. Swanson
Keyword(s):  
Isotopic Composition ◽  
Individual Variation ◽  
Lake Trout ◽  
Carbon And Nitrogen ◽  
Nitrogen Isotopic Composition

scholarly journals Trophic Relationships and Habitat Preferences of Delphinids from the Southeastern Brazilian Coast Determined by Carbon and Nitrogen Stable Isotope Composition

PLoS ONE ◽  
2013 ◽  
Vol 8 (12) ◽  
pp. e82205 ◽  
Author(s):  
Tatiana Lemos Bisi ◽  
Paulo Renato Dorneles ◽  
José Lailson-Brito ◽  
Gilles Lepoint ◽  
Alexandre de Freitas Azevedo ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Isotope Composition ◽  
Habitat Preferences ◽  
Trophic Relationships ◽  
Brazilian Coast ◽  
Stable Isotope Composition ◽  
Nitrogen Stable Isotope ◽  
Carbon And Nitrogen

Alteration of the carbon and nitrogen stable isotope composition of beef by substitution of grass silage with maize silage

2005 ◽  
Vol 19 (14) ◽  
pp. 1937-1942 ◽  
Author(s):  
Bojlul Bahar ◽  
Frank J. Monahan ◽  
Aidan P. Moloney ◽  
Padraig O'Kiely ◽  
Charlie M. Scrimgeour ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Isotope Composition ◽  
Stable Isotope Composition ◽  
Maize Silage ◽  
Nitrogen Stable Isotope ◽  
Carbon And Nitrogen ◽  
Grass Silage

scholarly journals Spatio-temporal stable isotope variation of a benthic primary consumer in a simple food web in a strongly acidic lake

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e7890 ◽  
Author(s):  
Hideyuki Doi ◽  
Eisuke Kikuchi ◽  
Shigeto Takagi ◽  
Shuichi Shikano
Keyword(s):  
Stable Isotope ◽  
Temporal Variation ◽  
Food Web ◽  
Isotope Composition ◽  
Isotope Ratios ◽  
Stable Isotope Composition ◽  
Nitrogen Stable Isotope ◽  
Chironomid Larvae ◽  
Carbon And Nitrogen ◽  
Spatio Temporal

Analysis of aquatic food webs is typically undertaken using carbon and nitrogen stable isotope composition of consumer and producer species. However, the trophic consequences of spatio-temporal variation in the isotope composition of consumers have not been well evaluated. Lake Katanuma, Japan, is highly acidic and has only one dominant species of benthic alga and one planktonic microalga, making it a prime system for studying trophic relationships between primary consumers and producers. In this simple lake food web, we conducted a field survey to evaluate spatial and temporal variation in the carbon and nitrogen stable isotope composition of a chironomid larvae in association with a single benthic and planktonic alga. We found a significant correlation between carbon stable isotope ratios of the chironomid larvae and the benthic diatom species in the lake. Thus, chironomid larvae may represent a reliable isotopic baseline for estimating isotope values in benthic diatoms. However, although the correlation held in shallow water, at four m depths, there was no significant relationship between the isotope ratios of chironomids and benthic diatoms, probably because deep-water larvae spend part of their life cycle migrating from the lake shore to deeper water. The differing isotope ratios of deeper chironomid tissues likely reflect the feeding history of individuals during this migration.

Stable carbon and nitrogen isotopic composition of PM10 over Indo-Gangetic Plains (IGP), adjoining regions and Indo-Himalayan Range (IHR) during a winter 2014 campaign

2018 ◽  
Vol 25 (26) ◽  
pp. 26279-26296 ◽  
Author(s):  
Avirup Sen ◽  
Supriya G. Karapurkar ◽  
Mohit Saxena ◽  
Damodar M. Shenoy ◽  
Abhijit Chaterjee ◽  
...  
Keyword(s):  
Isotopic Composition ◽  
Stable Carbon ◽  
Gangetic Plains ◽  
Carbon And Nitrogen ◽  
Nitrogen Isotopic Composition

Unraveling the Sources of Atmospheric Organic Aerosols Over the Arabian Sea: Insights from the Stable Carbon and Nitrogen Isotopic Composition

2021 ◽  
Author(s):  
Poonam Bikkina ◽  
Srinivas Bikkina ◽  
Kimitaka Kawamura ◽  
V.V.S.S. Sarma ◽  
Dhananjay K. Deshmukh
Keyword(s):  
Isotopic Composition ◽  
Arabian Sea ◽  
Organic Aerosols ◽  
Stable Carbon ◽  
Carbon And Nitrogen ◽  
Nitrogen Isotopic Composition

Body size and diet–related morphological variation of bats over the past 65 years in China

2019 ◽  
Vol 101 (1) ◽  
pp. 61-79 ◽  
Author(s):  
Xinke Yue ◽  
Alice C Hughes ◽  
Kyle W Tomlinson ◽  
Shangwen Xia ◽  
Song Li ◽  
...  
Keyword(s):  
Environmental Changes ◽  
Isotope Composition ◽  
Land Use Changes ◽  
Length Change ◽  
Nitrogen Stable Isotope ◽  
Carbon And Nitrogen ◽  
The Past ◽  
Latitudinal Range ◽  
Forearm Length ◽  
Phenotypic Responses

Abstract We examined both historical (1960s) and recent (2017) specimens of an insectivorous bat species (Hipposideros armiger) and a phytophagous bat (Rousettus leschenaultii) from the same latitudinal range to explore phenotypic responses to environmental change in China over the past 65 years. Hipposideros armiger exhibited significant increases in forearm length and three diet-related cranial traits, as well as carbon and nitrogen stable isotope composition, suggesting that modern H. armiger must travel farther for food and may now use different food resources. In contrast, R. leschenaultii showed no change in forearm length but displayed significant increases in diet-related cranial traits. This study provides evidence for differential responses to recent environmental changes in bat species with different diets. The changes in diet-related traits of the two species and the forearm length change on the insectivorous bats suggest that recent phenotypic changes may be adaptions to land-use changes rather than to climate change.

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