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Toxicity of four oil dispersants to some animals from the Baltic Sea
Four oil dispersants of interest for practical use in the Baltic Sea were tested as regards toxicity to animals from the littoral zone of the same area. The dispersants tested were Corexit 7664,Expand
Overwintering at low oxygen concentrations in the mayfly Leptophlebia vespertina
The survival of L. vespertina (L.) nymphs in three humic forest ponds in southern Norway was investigated. The main water bodies of the ponds were apparently anoxic for part of the winter due to iceExpand
Overwintering strategy of two closely related forms of Cloeon (dipterum?) (Ephemeroptera) from Sweden and England
SUMMARY. Comparison is made of resistance to anoxia at 0°C of an English and a Swedish winter larval population of two closely related forms of Cloeon (dipterum?). The English population was not veryExpand
On the structure and function of the ventral tubuli of some Chironomus larvae (Diptera, Nematocera)
The ultrastructure of the walls of the tubuli of larvae of two Chironomus species living in lakes and four species from small ponds were studied, in order to decide whether the function of the tubuliExpand
Resistance to anoxia of Chironomus plumosus and Chironomus anthracinus (Diptera) larvae
Survival of the midge larvae Chironomus plumosus and C. anthracinus in anoxia at 4°C was investigated. C. plumosus survived about twice as long as C. anthracinus. The corresponding LT 50 values wereExpand
Adaptation to an acid environment in Chironomus riparius (Diptera, Chironomidae) from Smoking Hills, NWT, Canada
The Smoking Hills in the North West Territories, Canada have burnt for centuries causing long term acidification of ponds in the vicinity. Chironomus riparius, a red chironomid larva dominated theExpand
Critical oxygen demand in Plecoptera and Ephemeroptera nymphs as determined by two methods
The positions of the critical points on oxygen consumption/oxygen concentration curves and the oxygen levels for 95% sustained survival were compared for water insect nymphs. The influence on theExpand
The oxygen consumption of mayfly (Ephemeroptera) and stonefly (Plecoptera) larvae at different oxygen concentration
  • B. Nagell
  • Biology
  • Hydrobiologia
  • 1 September 1973
Abstract1.The aim of this investigation was to elucidate how four acquatic insect larvae, from different habitats and having different respiratory organs or types of respiratory regulation, react toExpand
Winter anoxia — a general feature of ponds in cold temperate regions
There are good reasons to believe that in cold temperate regions the whole water masses of ponds with little or no through flow are anoxic during the winter. This feature, demonstrated forExpand
Survival of Cloeon dipterum (Ephemeroptera) larvae under anoxic conditions in winter
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