Thermal tolerance of two populations of Acartia clausi (Copepoda) living at differently polluted areas M. Moraïtou-ApostolopoulouG. Verriopoulos OriginalPaper Pages: 3 - 6
The longevity of three generations of normal and pollution-impacted Acartia clausi (Copepoda) populations in the Saronicos Gulf (Greece) M. Moraitou-ApostolopoulouG. Verriopoulos OriginalPaper Pages: 7 - 15
The reproductive morphology of Dumontia incrassata (O. F. Müller) Lamouroux J. A. KilarA. C. Mathieson OriginalPaper Pages: 17 - 23
Studies on the primary production of the river Shatt Al-Arab at Basrah, Iraq Molla F. HuqHussain A. Al-SaadiHameed A. Hameed OriginalPaper Pages: 25 - 29
A comparison of the benthic macroinvertebrate communities in a trout stream: Winter and spring 1973 and 1977 Patricia T. BradtGeorge E. Wieland OriginalPaper Pages: 31 - 35
Ceriometry, a combined method for chemical oxygen demand and dissolved oxygen (with a discussion on the precision of the winkler technique) H. L. GoltermanA. G. Wisselo OriginalPaper Pages: 37 - 42
Mineral element content in Ulva lactuca L. with reference to eutrophication in Hong Kong coastal waters Y. B. Ho OriginalPaper Pages: 43 - 47
The study of phosphorus and nitrogen fluxes in enriched isolation columns A. J. TwinchC. M. Breen OriginalPaper Pages: 49 - 60
Survival of Diplectrona modesta banks (Trichoptera : Hydropsychidae) during short periods of desiccation J. G. A. ImhofA. D. Harrison OriginalPaper Pages: 61 - 63
Movements of adult aquatic insects near streams in Southern Ontario G. A. BirdH. B. N. Hynes OriginalPaper Pages: 65 - 69
An inexpensive photosynthetic irradiance sensor for ecological field studies F. H. Dawson OriginalPaper Pages: 71 - 76
Effects of eyestalk ablation on growth and food conversion efficiency of the freshwater prawn Macrobrachium lanchesteri (de Man) R. PonnuchamyS. Ravichandra ReddyKatre Shakuntala OriginalPaper Pages: 77 - 80
Summer zooplankton communities of selected borrow-pit ponds in Northern Illinois, U.S.A. Louis L. Lipsey Jr.Scott Malcom OriginalPaper Pages: 81 - 85
The impact of urbanization on seasonal hydrologic and nutrient budgets of a small North American watershed V. J. WatsonO. L. LoucksW. Wojner OriginalPaper Pages: 87 - 96