Avoidance test with Enchytraeus albidus: Is avoidance of
individual worms comparable to avoidance of grouped worms?

a 2009

Avoidance test with Enchytraeus albidus: Is avoidance of individual worms comparable to avoidance of grouped worms?

KOBETIČOVÁ, Klára, Jakub HOFMAN a Ivan HOLOUBEK

Základní údaje

Originální název

Avoidance test with Enchytraeus albidus: Is avoidance of individual worms comparable to avoidance of grouped worms?

Název česky

Test únikového chování s druhem Enchytraeus albidus: je únik jednotlivých červů srovnatelný s únikou reakcí červů ve skupinách?

Autoři

KOBETIČOVÁ, Klára, Jakub HOFMAN a Ivan HOLOUBEK

Vydání

SETAC Europe 19th Annual Meeting, from 31 May until 4 June 2009, Göteborg, Sweden, 2009

Další údaje

Jazyk

angličtina

Typ výsledku

Konferenční abstrakt

Obor

10600 1.6 Biological sciences

Stát vydavatele

Česká republika

Utajení

není předmětem státního či obchodního tajemství

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova česky

test únikového chování, karbendazim, design testu, roupice

Klíčová slova anglicky

avoidance test, carbendazim, test design, enchytraeid

Změněno: 9. 1. 2010 17:00, RNDr. Klára Kobetičová, Ph.D.

Anotace

V originále

The avoidance tests are based on a presumption that each individual organism which is introduced into the test vessel behaves independently of the other individuals. This is usually verified by using dual-controls with clear substrate on the both sides of the test vessel when the same number of individuals is expected to be on the both sides at the end of the test. In our study, the linkage between individual worm and the whole group was verified on the species Enchytraeus albidus. One or ten individuals were introduced into the test vessels containing clean LUFA 2.2 soil on the one side and the same soil contaminated by pesticide carbendazim on the other side. Concentration used was derived from EC50 value (7.6 mg/kg) of preliminary avoidance test. The reaction of worms was measured after 3, 6, 12, 24 and 48 hours. The results indicated that worms in groups needed 12 – 24 hours to show significant avoidance response while single worms started to significantly prefer control soil after longer time (48 hours). Nevertheless, it seems that after sufficient time (> 2 days) the overall result of the test run in both designs showed similar results. Our results demonstrated that worms in groups move independently and their avoidance behavior does not really differ significantly from the behavior of individual worms.

Návaznosti

MSM0021622412, záměr

Název: Interakce mezi chemickými látkami, prostředím a biologickými systémy a jejich důsledky na globální, regionální a lokální úrovni (INCHEMBIOL) (Akronym: INCHEMBIOL)

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Interakce mezi chemickými látkami, prostředím a biologickými systémy a jejich důsledky na globální , regionální a lokální úrovni

Citovat

KOBETIČOVÁ, Klára, Jakub HOFMAN a Ivan HOLOUBEK. Avoidance test with Enchytraeus albidus: Is avoidance of individual worms comparable to avoidance of grouped worms? In SETAC Europe 19th Annual Meeting, from 31 May until 4 June 2009, Göteborg, Sweden. 2009.

@proceedings{864777,
   author = {Kobetičová, Klára and Hofman, Jakub and Holoubek, Ivan},
   booktitle = {SETAC Europe 19th Annual Meeting, from 31 May until 4 June 2009, Göteborg, Sweden},
   keywords = {avoidance test, carbendazim, test design, enchytraeid},
   language = {eng},
   title = {Avoidance test with Enchytraeus albidus: Is avoidance of individual worms comparable to avoidance of grouped worms?},
   year = {2009}
}

TY  - CONF
ID  - 864777
AU  - Kobetičová, Klára - Hofman, Jakub - Holoubek, Ivan
PY  - 2009
TI  - Avoidance test with Enchytraeus albidus: Is avoidance of individual worms comparable to avoidance of grouped worms?
KW  - avoidance test, carbendazim, test design, enchytraeid
N2  - The avoidance tests are based on a presumption that each individual organism which is introduced into the test vessel behaves independently of the other individuals. This is usually verified by using dual-controls with clear substrate on the both sides of the test vessel when the same number of individuals is expected to be on the both sides at the end of the test. In our study, the linkage between individual worm and the whole group was verified on the species Enchytraeus albidus. One or ten individuals were introduced into the test vessels containing clean LUFA 2.2 soil on the one side and the same soil contaminated by pesticide carbendazim on the other side. Concentration used was derived from EC50 value (7.6 mg/kg) of preliminary avoidance test. The reaction of worms was measured after 3, 6, 12, 24 and 48 hours. The results indicated that worms in groups needed 12 – 24 hours to show significant avoidance response while single worms started to significantly prefer control soil after longer time (48 hours). Nevertheless, it seems that after sufficient time (> 2 days) the overall result of the test run in both designs showed similar results. Our results demonstrated that worms in groups move independently and their avoidance behavior does not really differ significantly from the behavior of individual worms.
ER  -

KOBETIČOVÁ, Klára, Jakub HOFMAN a Ivan HOLOUBEK. Avoidance test with Enchytraeus albidus: Is avoidance of individual worms comparable to avoidance of grouped worms? In \textit{SETAC Europe 19th Annual Meeting, from 31 May until 4 June 2009, Göteborg, Sweden}. 2009.

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