Distribution of benthic invertebrates in a small stream

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F07%3A00022580" target="_blank" >RIV/00216224:14310/07:00022580 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Distribution of benthic invertebrates in a small stream

Popis výsledku v původním jazyce

The distribution of benthic macroinvertebrates can be studied at different scales. At a mesohabitat scale the variation in a benthic community structure is influenced by four major processes: 1) physical factors, 2) patchy food supplies, 3) reproductiveand age related effects, 4) biological interactions. Even in a small part of a stream we find habitats with different environmental conditions and therefore the distribution of organisms is not uniform but reflects the characteristics of the habitats. Westudied spatial distribution of benthic macroinvertebrates within a 100m long reach of a Strahler's first order stream Hadůvka (Czech-Moravian Highlands, Czech Republic). Several mesohabitats were distinguished there: fine sediment, pure sandy bottom, sand covered with leaves, gravel bottom, gravel covered with leaves and cumulated woody debris - debris dams. From each mesohabitat all substratum was taken using Hess sampler (area 0.03 m2, 100mm mesh size) into the depth 5cm.

Název v anglickém jazyce

Distribution of benthic invertebrates in a small stream

Popis výsledku anglicky

The distribution of benthic macroinvertebrates can be studied at different scales. At a mesohabitat scale the variation in a benthic community structure is influenced by four major processes: 1) physical factors, 2) patchy food supplies, 3) reproductiveand age related effects, 4) biological interactions. Even in a small part of a stream we find habitats with different environmental conditions and therefore the distribution of organisms is not uniform but reflects the characteristics of the habitats. Westudied spatial distribution of benthic macroinvertebrates within a 100m long reach of a Strahler's first order stream Hadůvka (Czech-Moravian Highlands, Czech Republic). Several mesohabitats were distinguished there: fine sediment, pure sandy bottom, sand covered with leaves, gravel bottom, gravel covered with leaves and cumulated woody debris - debris dams. From each mesohabitat all substratum was taken using Hess sampler (area 0.03 m2, 100mm mesh size) into the depth 5cm.

Druh

O - Ostatní výsledky

CEP obor

EH - Ekologie – společenstva

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2007

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů