Impact of natural organic matter (NOM) on freshwater amphipods

Timofeyev, Maxim A.; Wiegand, Claudia; Burnison, B. Kent; Shatilina, Z. M.; Pflugmacher, Stephan; Steinberg, Christian E. W.

doi:10.1016/s0048-9697(03)00444-3

Cited by 54 publications

(44 citation statements)

References 17 publications

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“…This present work tends to confirm this hypothesis. In addition, in a recent study (Timofeyev et al, 2004) an increase in mortality and physiological disruptions were observed when amphipod crustaceans were exposed to natural organic matter from ponds.…”

Section: Discussionmentioning

confidence: 96%

Physical and chemical water requirements of the white‐clawed crayfish (Austropotamobius pallipes) in western France

Trouilhé

Souty‐Grosset

Grandjean

et al. 2006

Aquatic Conservation

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ABSTRACT1. In France, the distribution of the native white-clawed crayfish (Austropotamobius pallipes) is restricted, fragmented and mainly located in headwater streams. To conserve this indigenous species, it is necessary to characterize its habitat preferences.2. Seven brooks in the Deux-Se`vres De´partement (western France) containing wild populations of A. pallipes were studied to determine its ranges of tolerance to 19 physical and chemical water parameters. On two brooks, the Se`vre Nantaise and the Verdonnie`re, sites with and without A. pallipes were compared. Each site was sampled twice monthly from November 2002 to November 2004.3. It was found that the white-clawed crayfish was able to tolerate wide ranges of values of some of the measured parameters. The Magot site harboured the largest A. pallipes population (17.5 crayfish m À2 ) and had dissolved oxygen concentrations as low as 4.93 mg L À1 , while water temperature rose above 208C for several consecutive days during summer and nitrate concentrations were always found to be above 30 mg L À1. These unusual findings could call into question the status of A. pallipes as a bioindicator of good water quality.4. Principal component analyses (PCA) suggested that an increase of organic matter was a discriminant factor for the presence or absence of A. pallipes. In addition, sites with and without crayfish on the Se`vre Nantaise brook showed showed significant differences (p50:05) in total organic carbon (TOC), and those on the Verdonnie`re brook in turbidity and total suspended solids (TSS).

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Section: Discussionmentioning

confidence: 96%

Physical and chemical water requirements of the white‐clawed crayfish (Austropotamobius pallipes) in western France

Trouilhé

Souty‐Grosset

Grandjean

et al. 2006

Aquatic Conservation

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“…Empirical evidence is currently accumulating that humic substances are taken up [1]. Once internalized, these substances can induce biotransformation enzymes and stress defense proteins, such as chaperons or heat shock protein 70 in fish and invertebrates [11,17]. It is therefore reasonable to suppose that humic substances absorbed via the intestinal tract of the ayu fish affect host physiological conditions, such as innate immune responses, thereby conferring protection against F. psychrophilum infection.…”

Section: Pseudomonas Plecoglossicida and Vibrio Anguillarum)mentioning

confidence: 99%

Protection against Flavobacterium psychrophilum Infection (Cold Water Disease) in Ayu Fish (Plecoglossus altivelis) by Oral Administration of Humus Extract

Nakagawa

Iwasaki

Kodama

2009

The Journal of Veterinary Medical Science

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ABSTRACT. Humic substances are formed during the decomposition of organic matter in humus, and are found in many natural environments in which organic materials and microorganisms have been present. In the present study, oral administration of humus extract to ayu fish (Plecoglossus altivelis) induced effective protection against experimental Flavobacterium psychrophilum infection (cold water disease). Mortality of fish and development of skin lesions, such as erosion and hemorrhages on the skin, gill cover or mouth, were significantly suppressed in fish treated with 10%, 5% or 1% humus extract adsorbed on dry pellets. Although F. psychrophilum was not re-isolated from gills and erosion lesions of the skin of dead fish, bacterial gyrB DNA could be amplified in these specimens from dead fish and surviving control fish using the polymerase chain reaction. The protective effect of the extract was not the results of direct killing of bacteria or antibiotic activity of the extract since no obvious reduction in the bacterial number was observed at 5 times to 5,000 times dilution of the humus extract having pH 5.45 to 7.40. These results clearly show that treating fish with humus extract is effective in preventing cold water disease.

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“…Recently it was shown that NOM may cause oxidative stress symptoms and induce anti-stress reactions in all exposed species studied to date, including amphipods (see review by Steinberg et al 2006). Exposed freshwater organisms respond to NOM-mediated stress by induction and/or modulation of both specific and general anti-stress systems (induction of stress proteins and MXR activity: Timofeyev et al 2004Timofeyev et al , 2007, activation of biotransformation enzymes: Steinberg et al 2006). Oxidative stress as one of the major effects of NOMs has been studied intensively in different amphipods: the stress response was characterized by modulation of antioxidant enzyme activities (Timofeyev et al 2004.…”

Section: Introductionmentioning

confidence: 99%

“…Exposed freshwater organisms respond to NOM-mediated stress by induction and/or modulation of both specific and general anti-stress systems (induction of stress proteins and MXR activity: Timofeyev et al 2004Timofeyev et al , 2007, activation of biotransformation enzymes: Steinberg et al 2006). Oxidative stress as one of the major effects of NOMs has been studied intensively in different amphipods: the stress response was characterized by modulation of antioxidant enzyme activities (Timofeyev et al 2004. Because these reactions consume energy, which has to be compensated for at the expense of resources or regular metabolism, the impacts of NOMs on aquatic organisms have to be considered adverse (Fent 2007).…”

Section: Introductionmentioning

confidence: 99%

Can acclimation of amphipods change their antioxidative response?

et al. 2008

Self Cite

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The aim of this study was to evaluate whether experimental conditions, particularly duration of acclimation in the laboratory with artificial water and diet prior to the actual experiment, can affect the antioxidant response of amphipods. This issue was evaluated using the Baikalian amphipod Eulimnogammarus cyaneus (Dyb.) exposed to two sources of natural organic matter (NOM). NOM elicits several oxidative stress symptoms and we used peroxidase activity as a representative response parameter. Pretest acclimation periods of the amphipods lasted from 3 days to 5 months. The exposure of E. cyaneus to NOM resulted in significant modulation of the peroxidase activity with a clear dependence on the duration of the acclimation period. Animals experiencing short-term acclimation showed reduced activity, whereas long-term acclimated animals exhibited an increase in peroxidase activity. We suggest that this difference was due to laboratory conditions particularly the artificial diet. This fact should be considered in future studies using field-collected animals kept in the laboratory for different periods of time.

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Impact of natural organic matter (NOM) on freshwater amphipods

Cited by 54 publications

References 17 publications

Physical and chemical water requirements of the white‐clawed crayfish (Austropotamobius pallipes) in western France

Physical and chemical water requirements of the white‐clawed crayfish (Austropotamobius pallipes) in western France

Protection against Flavobacterium psychrophilum Infection (Cold Water Disease) in Ayu Fish (Plecoglossus altivelis) by Oral Administration of Humus Extract

Can acclimation of amphipods change their antioxidative response?

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