About: Circadian Changes in Feeding Activity and Diet of Hydropsyche saxonica (Trichoptera)     Goto   Sponge   NotDistinct   Permalink

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  • Circadian changes in feeding activity and diet of instar IV and V larvae of Hydropsyche saxonica were studied in the Vrbovecký brook (Czech Republic). The larvae were hand-picked at 6-hour intervals. The ratio maximum foregut diameter/head capsule width was used to determine gut fullness and the contents of larval foreguts were analyzed using a millipore filter technique. One-way ANOVA revealed significant differences in gut fullness among instar V larvae collected at different times. Guts were fuller in the larvae collected at dusk and at dawn, indicating high crepuscular activity. No significant temporal differences in gut fullness were recorded for instar IV larvae. There were no significant differences in foregut contents among instar V or among instar IV larvae collected at different times. However, the difference between foregut contents of instar V and IV larvae was significant.
  • Circadian changes in feeding activity and diet of instar IV and V larvae of Hydropsyche saxonica were studied in the Vrbovecký brook (Czech Republic). The larvae were hand-picked at 6-hour intervals. The ratio maximum foregut diameter/head capsule width was used to determine gut fullness and the contents of larval foreguts were analyzed using a millipore filter technique. One-way ANOVA revealed significant differences in gut fullness among instar V larvae collected at different times. Guts were fuller in the larvae collected at dusk and at dawn, indicating high crepuscular activity. No significant temporal differences in gut fullness were recorded for instar IV larvae. There were no significant differences in foregut contents among instar V or among instar IV larvae collected at different times. However, the difference between foregut contents of instar V and IV larvae was significant. (en)
Title
  • Circadian Changes in Feeding Activity and Diet of Hydropsyche saxonica (Trichoptera)
  • Circadian Changes in Feeding Activity and Diet of Hydropsyche saxonica (Trichoptera) (en)
skos:prefLabel
  • Circadian Changes in Feeding Activity and Diet of Hydropsyche saxonica (Trichoptera)
  • Circadian Changes in Feeding Activity and Diet of Hydropsyche saxonica (Trichoptera) (en)
skos:notation
  • RIV/00216224:14310/07:00020443!RIV10-MSM-14310___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA206/02/0902), Z(MSM0021622416)
http://linked.open...iv/cisloPeriodika
  • 4 - 5
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 413755
http://linked.open...ai/riv/idVysledku
  • RIV/00216224:14310/07:00020443
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • stream benthos; larval instars feeding; activity patterns (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV
  • [B15B48C57A6B]
http://linked.open...i/riv/nazevZdroje
  • International Review of Hydrobiology
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 92 - 2007
http://linked.open...iv/tvurceVysledku
  • Helešic, Jan
  • Tajmrová, Lenka
http://linked.open...ain/vavai/riv/wos
  • 000249375700014
http://linked.open...n/vavai/riv/zamer
issn
  • 1434-2944
number of pages
http://localhost/t...ganizacniJednotka
  • 14310
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