Morphological Abnormalities of Paradiplozoon homoion
(Diplozoidae; Monogenea) as Indicators of Environmental Stress

D 2005

Morphological Abnormalities of Paradiplozoon homoion (Diplozoidae; Monogenea) as Indicators of Environmental Stress

PEČÍNKOVÁ, Martina, Božena KOUBKOVÁ, Leif Asbjorn VOLLESTAD, Jiří HUML, Pavel JURAJDA et. al.

Základní údaje

Originální název

Morphological Abnormalities of Paradiplozoon homoion (Diplozoidae; Monogenea) as Indicators of Environmental Stress

Název česky

Morfologické abnormality Paradiplozoon homoion jako indikátor environmentálního stresu

Autoři

PEČÍNKOVÁ, Martina (203 Česká republika, garant), Božena KOUBKOVÁ (203 Česká republika), Leif Asbjorn VOLLESTAD (578 Norsko), Jiří HUML (203 Česká republika), Pavel JURAJDA (203 Česká republika) a Milan GELNAR (203 Česká republika)

Vydání

Karlsruhe, Germany, Ecological and Environmental Parasitology: The Impact of Global Change, s. 24-24, 2005

Nakladatel

University of Karlsruhe, Germany

Další údaje

Jazyk

angličtina

Typ výsledku

Stať ve sborníku

Obor

10600 1.6 Biological sciences

Stát vydavatele

Německo

Utajení

není předmětem státního či obchodního tajemství

Kód RIV

RIV/00216224:14310/05:00019865

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

Paradiplozoon; fish; fluctuating asymmetry; environment

Štítky

environment, FISH, fluctuating asymmetry, Paradiplozoon

Změněno: 18. 12. 2006 10:59, Mgr. Martina Pečínková, Ph.D.

Anotace

ORIG CZ

V originále

Fish ectoparasites are in direct contact with both its fish host and the surrounding environment, and both the host quality and the water quality may influence the development of the parasite. The developmental stability of individuals is assumed to be influenced by environmental stress. Here, we study various indicators of developmental stability that may be useful indicators of habitat quality. We study the occurrence of morphological abnormalities in an ectoparasite and correlate that with the fluctuating asymmetry (FA) or the deviation from the morphological mean for its fish host. Fluctuating asymmetry is defined as the random deviation from the perfect bilateral symmetry and the presence of environmental or genetic stress during ontogeny reduces the efficiency of normal developmental processes, thus increasing the level of FA. A total of 100 gudgeon (Gobio gobio) individuals were collected in monthly samples of 20 individuals from Vlara stream (CR). Fish were surveyed for all eco- and endoparasites. The monogenean ectoparasites Dactylogyrus cryptomeres and Paradiplozoon homoion reached the highest values of abundance. About 25% of the collected individuals of P. homoion showed abnormalities of the attachment sclerites (e.g. size reduction of adult parasite clamps without changes in their sclerite structure, clamps with abnormal sclerites, rudimentary clamps). Abnormalities were not observed on other monogenean parasites. The proportion of abnormal P. homoion is high, indicating a stressful environment. To assess an estimate of developmental instability of the fish host we measured eight metric and nine meristic bilateral characters on the right and the left side of the fish. In general, there was no correlation between fish FA or individual departure from the morphological mean and the number of P. homoion or the proportion of P. homoion with abnormalities. There was, however, a significant relationship between number of abnormal P. homoion and the number of asymmetric meristic traits per individual fish. This study thus indicates that the presence of morphological abnormalities in P. homoion is not dependent on the fish quality as measured by FA and morphological variability.

Česky

Prevalence výskytu morfologických abnormalit parazita Paradiplozoon homoion je nezávislá na fluktuační asymetrii a morfologické variabilitě rybího hostitele.

Návaznosti

GA524/04/1115, projekt VaV

Název: Fluktuační asymetrie rybích parazitů: nový přístup ke stanovení environmentálního stresu vodního ekosystému?

Investor: Grantová agentura ČR, Fluktuační asymetrie rybích parazitů: nový přístup ke stanovení environmentálního stresu vodního ekosystému?

MSM0021622416, záměr

Název: Diverzita biotických společenstev a populací: kauzální analýza variability v prostoru a čase

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Diverzita biotických společenstev: kauzální analýza variability v prostoru a čase

Citovat

PEČÍNKOVÁ, Martina, Božena KOUBKOVÁ, Leif Asbjorn VOLLESTAD, Jiří HUML, Pavel JURAJDA a Milan GELNAR. Morphological Abnormalities of Paradiplozoon homoion (Diplozoidae; Monogenea) as Indicators of Environmental Stress. In Ecological and Environmental Parasitology: The Impact of Global Change. Karlsruhe, Germany: University of Karlsruhe, Germany, 2005, s. 24.

@inproceedings{571284,
   author = {Pečínková, Martina and Koubková, Božena and Vollestad, Leif Asbjorn and Huml, Jiří and Jurajda, Pavel and Gelnar, Milan},
   address = {Karlsruhe, Germany},
   booktitle = {Ecological and Environmental Parasitology: The Impact of Global Change},
   keywords = {Paradiplozoon; fish; fluctuating asymmetry; environment},
   language = {eng},
   location = {Karlsruhe, Germany},
   pages = {24-24},
   publisher = {University of Karlsruhe, Germany},
   title = {Morphological Abnormalities of Paradiplozoon homoion (Diplozoidae; Monogenea) as Indicators of Environmental Stress},
   year = {2005}
}

TY  - JOUR
ID  - 571284
AU  - Pečínková, Martina - Koubková, Božena - Vollestad, Leif Asbjorn - Huml, Jiří - Jurajda, Pavel - Gelnar, Milan
PY  - 2005
TI  - Morphological Abnormalities of Paradiplozoon homoion (Diplozoidae; Monogenea) as Indicators of Environmental Stress
PB  - University of Karlsruhe, Germany
CY  - Karlsruhe, Germany
KW  - Paradiplozoon
KW  - fish
KW  - fluctuating asymmetry
KW  - environment
N2  - Fish ectoparasites are in direct contact with both its fish host and the surrounding environment, and both the host quality and the water quality may influence the development of the parasite. The developmental stability of individuals is assumed to be influenced by environmental stress. Here, we study various indicators of developmental stability that may be useful indicators of habitat quality. We study the occurrence of morphological abnormalities in an ectoparasite and correlate that with the fluctuating asymmetry (FA) or the deviation from the morphological mean for its fish host. Fluctuating asymmetry is defined as the random deviation from the perfect bilateral symmetry and the presence of environmental or genetic stress during ontogeny reduces the efficiency of normal developmental processes, thus increasing the level of FA. A total of 100 gudgeon (Gobio gobio) individuals were collected in monthly samples of 20 individuals from Vlara stream (CR). Fish were surveyed for all eco- and endoparasites. The monogenean ectoparasites Dactylogyrus cryptomeres and Paradiplozoon homoion reached the highest values of abundance. About 25% of the collected individuals of P. homoion showed abnormalities of the attachment sclerites (e.g. size reduction of adult parasite clamps without changes in their sclerite structure, clamps with abnormal sclerites, rudimentary clamps). Abnormalities were not observed on other monogenean parasites. The proportion of abnormal P. homoion is high, indicating a stressful environment. To assess an estimate of developmental instability of the fish host we measured eight metric and nine meristic bilateral characters on the right and the left side of the fish. In general, there was no correlation between fish FA or individual departure from the morphological mean and the number of P. homoion or the proportion of P. homoion with abnormalities. There was, however, a significant relationship between number of abnormal P. homoion and the number of asymmetric meristic traits per individual fish. This study thus indicates that the presence of morphological abnormalities in P. homoion is not dependent on the fish quality as measured by FA and morphological variability.
ER  -

PEČÍNKOVÁ, Martina, Božena KOUBKOVÁ, Leif Asbjorn VOLLESTAD, Jiří HUML, Pavel JURAJDA a Milan GELNAR. Morphological Abnormalities of Paradiplozoon homoion (Diplozoidae; Monogenea) as Indicators of Environmental Stress. In \textit{Ecological and Environmental Parasitology: The Impact of Global Change}. Karlsruhe, Germany: University of Karlsruhe, Germany, 2005, s.~24.

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