Small - but not easy: Evaluation of sampling methods in
floodplain lakes including whole-lake sampling

J 2009

Small - but not easy: Evaluation of sampling methods in floodplain lakes including whole-lake sampling

JURAJDA, P.; Michal JANÁČ; S M WHITE a M. ONDRACKOVA

Základní údaje

Originální název

Small - but not easy: Evaluation of sampling methods in floodplain lakes including whole-lake sampling

Autoři

JURAJDA, P.; Michal JANÁČ; S M WHITE a M. ONDRACKOVA

Vydání

Fisheries Research, ELSEVIER SCIENCE BV, 2009, 0165-7836

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

40103 Fishery

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 1.531

Označené pro přenos do RIV

Ano

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

Sampling strategy; Floodplain lake; Electrofishing; Beach seining; Fish behaviour

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 18. 6. 2020 16:00, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

We tested the efficiency of electrofishing and beach seining with several sampling strategies in small (<1 ha) floodplain borrow pits of the Dyje River (Danube basin). The study sites were characterized as rectangular-shaped with maximum depths of 2 m, having uniform habitat with minimal shelters and gravel bottom with organic sediment. We conducted point abundance sampling and continual electrofishing along the shoreline and also sampled in a zigzag pattern in the mid-zone from a boat. Sub-sampling and whole-lake sampling was conducted using a beach seine (40 m length, 10 mm mesh size). Each of the four sampling strategies (point sample electrofishing, continuous electrofishing, seining sub-samples, and whole-lake seining) was conducted on separate days in two sampling events in November 2005 and May 2007. A total of 22 species was registered in both sites. Electrofishing was more efficient for determining species richness in both sites compared to seining in the November sampling, but this finding was reversed in May 2007. Some species (chub, weatherfish) were recorded only by electrofishing, while other species (perch, bitterling, tench) were recorded mainly by electrofishing. Asp and blue bream were recorded only by seining. Pelagic species (bleak, bream, white bream) were highly underestimated by electrofishing in both sites and sample periods. The accurate representation of the fish community using just one sampling method and strategy is not feasible even in a small floodplain lake. Whole-lake seining through the entire borrow-pit site was more representative for pelagic species but less efficient for shelter-seeking species. Regarding the ability to capture representative samples, the behaviour of particular fish species seems to be a more significant factor than fish size.

Návaznosti

LC522, projekt VaV

Název: ICHTYOPARAZITOLOGIE - centrum základního výzkumu

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Ichtyoparazitologie - centrum základního výzkumu

Citovat

JURAJDA, P.; Michal JANÁČ; S M WHITE a M. ONDRACKOVA. Small - but not easy: Evaluation of sampling methods in floodplain lakes including whole-lake sampling. Fisheries Research. ELSEVIER SCIENCE BV, 2009, roč. 96, č. 1, s. 102-108. ISSN 0165-7836. Dostupné z: https://doi.org/10.1016/j.fishres.2008.09.005.

@article{1663056,
   author = {Jurajda, P. and Janáč, Michal and White, S M and Ondrackova, M.},
   article_number = {1},
   doi = {https://doi.org/10.1016/j.fishres.2008.09.005},
   keywords = {Sampling strategy; Floodplain lake; Electrofishing; Beach seining; Fish behaviour},
   language = {eng},
   issn = {0165-7836},
   journal = {Fisheries Research},
   title = {Small - but not easy: Evaluation of sampling methods in floodplain lakes including whole-lake sampling},
   url = {https://doi.org/10.1016/j.fishres.2008.09.005},
   volume = {96},
   year = {2009}
}

TY  - JOUR
ID  - 1663056
AU  - Jurajda, P. - Janáč, Michal - White, S M - Ondrackova, M.
PY  - 2009
TI  - Small - but not easy: Evaluation of sampling methods in floodplain lakes including whole-lake sampling
JF  - Fisheries Research
VL  - 96
IS  - 1
SP  - 102-108
EP  - 102-108
PB  - ELSEVIER SCIENCE BV
SN  - 01657836
KW  - Sampling strategy
KW  - Floodplain lake
KW  - Electrofishing
KW  - Beach seining
KW  - Fish behaviour
UR  - https://doi.org/10.1016/j.fishres.2008.09.005
L2  - https://doi.org/10.1016/j.fishres.2008.09.005
N2  - We tested the efficiency of electrofishing and beach seining with several sampling strategies in small (<1 ha) floodplain borrow pits of the Dyje River (Danube basin). The study sites were characterized as rectangular-shaped with maximum depths of 2 m, having uniform habitat with minimal shelters and gravel bottom with organic sediment. We conducted point abundance sampling and continual electrofishing along the shoreline and also sampled in a zigzag pattern in the mid-zone from a boat. Sub-sampling and whole-lake sampling was conducted using a beach seine (40 m length, 10 mm mesh size). Each of the four sampling strategies (point sample electrofishing, continuous electrofishing, seining sub-samples, and whole-lake seining) was conducted on separate days in two sampling events in November 2005 and May 2007. A total of 22 species was registered in both sites. Electrofishing was more efficient for determining species richness in both sites compared to seining in the November sampling, but this finding was reversed in May 2007. Some species (chub, weatherfish) were recorded only by electrofishing, while other species (perch, bitterling, tench) were recorded mainly by electrofishing. Asp and blue bream were recorded only by seining. Pelagic species (bleak, bream, white bream) were highly underestimated by electrofishing in both sites and sample periods. The accurate representation of the fish community using just one sampling method and strategy is not feasible even in a small floodplain lake. Whole-lake seining through the entire borrow-pit site was more representative for pelagic species but less efficient for shelter-seeking species. Regarding the ability to capture representative samples, the behaviour of particular fish species seems to be a more significant factor than fish size.
ER  -

JURAJDA, P.; Michal JANÁČ; S M WHITE a M. ONDRACKOVA. Small - but not easy: Evaluation of sampling methods in floodplain lakes including whole-lake sampling. \textit{Fisheries Research}. ELSEVIER SCIENCE BV, 2009, roč.~96, č.~1, s.~102-108. ISSN~0165-7836. Dostupné z: https://doi.org/10.1016/j.fishres.2008.09.005.

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