Náttúrufræðingurinn

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Náttúrufræðingurinn - 2020, Side 45

Náttúrufræðingurinn - 2020, Side 45
Tímarit Hins íslenska náttúrufræðifélags 45 Pétur M. Jónasson 1983. Advarsel: Esrom Sø trues af forurening. Frederiks- borg Amts Avis 3. júlí, bls. 21–22. Pétur M. Jónasson 1984. Decline of zoobenthos through five decades of eutrophication in Lake Esrom. Verhandlungen der Internationalen Vereinig- ung für Theoretische und Angewandte Limnologie 22. 800–804. Pétur M. Jónasson 1984. Oxygen demand and long term changes of profundal zoobenthos. Hydrobiologia 15. 121–126. Pétur M. Jónasson 1984. The ecosystem of eutrophic Lake Esrom. Bls. 177– 204 í: Lakes and Reservoirs (ritstj. Goodall, D.W. & Taub, F.B). (Ecosystems of the world 2). Elsevier Science, Amsterdam. Dall, P.C., Lindegaard, C., Erlendur Jónsson, Gunnar Steinn Jónsson & Pétur M. Jónasson 1984. Invertebrate communities and their environment in the ex- posed littoral zone of Lake Esrom, Denmark. Archiv für Hydrobiologie (Suppl. 69). 477–524. Pétur M. Jónasson 1984. Forsuring af ferskvandets økosystemer. Naturens Verden 1984. 106–115. Sandlund, O.T., Jonsson, B., Hilmar J. Malmquist, Gydemo, R., Lindem, T., Skúli Skúlason, Sigurður S. Snorrason & Pétur M. Jónasson 1987. Habitat use of Arctic charr Salvelinus alpinus in Thingvallavatn. Environmental Biology of Fishes 20. 263–274. Kairesalo, T., Karin Gunnarson, Gunnar Steinn Jónsson & Pétur M. Jónasson 1987. The occurrence and photosynthetic activity of epiphytes on the tips of Nitella opaca AG (Charophyceae). Aquatic Botany 28. 333–340. Pétur M. Jónasson 1987. De vogter søer og åer. Søs miljø og dyreliv 1908–1983. 1–49. Pétur M. Jónasson 1987. De vogter søer og åer. Frederiksborg Amts Avis 10. maí 1987, bls. 6. Pétur M. Jónasson 1989. Nostalgiske minder fra Suserup-laboratoriet i fyrrerne. Festskrift for Suserup-laboratoriet, Hillerød. Jonsson, B., Sandlund, O.T., Skúli Skúlason, Sigurður S. Snorrason, Hilmar J. Malmquist, Pétur M. Jónasson, Gydemo, R. & Lindem, T. 1988. Life history variation of polymorphic Arctic charr Salvelinus alpinus in Lake Thingvalla- vatn, Iceland. Canadian Journal of Fisheries and Aquatic Sciences 45. 1537– 1547. Sandlund, O.T., Jonsson, B., Skúli Skúlason, Sigurður S. Snorrason, Hilmar J. Malmquist, Gydemo, R., Lindem, T. & Pétur M. Jónasson 1988. Density, length distribution and diet of age–0 Arctic charr Salvelinus alpinus in the surface zone of Thingvallavatn. Environmental Biology of Fishes 23. 183–195. Dall, P.C., Lindegaard, C. & Pétur M. Jónasson 1988. Water pollution in Den- mark: A review with special reference to freshwater resources. Vatten 44. 96–103. Pétur M. Jónasson & Lindegaard, C. 1988. Ecosystem studies of North Atlantic Ridge lakes. Verhandlungen der Internationalen Vereinigung für Theor- etische und Angewandte 23. 394–403. Holopainen, I.J. & Pétur M. Jónasson 1989. Bathymetric distribution and abundances of Pisidum (Bivalvia, Sphaeriidae) in Lake Esrom from 1954 to 1988. Oikos 55. 324–334. Holopainen, I.J. & Pétur M. Jónasson 1989. Reproduction of Pisidium (Bivalvia, Sphaeriidae) at different depths in Lake Esrom, Denmark. Archiv für Hydrobiologie 116. 85–95. Sandlund, O.T., Jonsson, B., Pétur M. Jónasson, Hilmar J. Malmquist, Skúli Skúlason & Sigurður. S. Snorrason 1989. Reproductive investment patterns in the polymorphic Arctic charr of Thingvallavatn, Iceland. Physiology and Ecology Japan. Special Volume 1. 383–392. Sigurður S. Snorrason, Skúli Skúlason, Sandlund, O.T., Hilmar J. Malmquist, Jonsson, B. & Pétur M. Jónasson 1989. Shape polymorphism in Arctic Charr, Salvelinus alpinus, in Thingvallavatn, Iceland. Physiological Ecolology Japan. Special Volume 1. 393–404. Kairesalo, T., Gunnar Steinn Jónsson, Karin Gunnarson & Pétur M. Jón- asson 1989. Macro- and microalgal production within a Nitella opaca bed in oligotrophic, subarctic Lake Thingvallavatn, Iceland. Journal of Ecology 77. 332–342. Pétur M. Jónasson 1989. Zoobenthos og omsætning af organisk stof i søer. Ferskvandsbiologisk laboratorium, Hillerød. 29 bls. Hamburger, K., Dall, P.C. & Pétur M. Jónasson 1990. The role of Dreissena polymorpha Pallas (Mollousca) in Lake Esrom energy budget. Verhandlungen der Internationa- len Vereinigung für Theoretische und Angewandte Limnologie 24. 621–625. Dall, P.C., Lindegaard, C. & Pétur M. Jónasson 1990. In-lake variations in the compositions of zoobenthos in the littoral of Lake Esrom, Denmark. Verhandl- ungen der Internationalen Vereinigung für Theoretische und Angewandte Limnologie 24. 613–620. Pétur M. Jónasson, Lindegaard, C. & Hamburger, K. 1990. Energy budgets of Lake Esrom, Denmark: Interactions between energy flow in the pelagic, profundal and littoral zone. Verhandlungen der Internationalen Vereinigung für Theoretische und Angewandte Limnologie 24. 632–640. Pétur M. Jónasson, Lindegaard, C., Dall, P.C., Hamburger, K. & Hákon Aðal- steinsson 1990. Ecosystem studies on temperate Lake Esrom and the subarctic lakes Mývatn and Thingvallavatn. Limnologica 20. 259–266. Pétur M. Jónasson, Lindem, T., Sigurður S. Snorrason, Hilmar J. Malmquist, Sandlund, O.T., Jonsson, B., Kristinn P. Magnússon, Skúli Skúlason & Gydemo, R. 1990. Feeding pattern of planktivorous Arctic charr. Í: (Ritstj. Poppoff, I.G. o.fl.) Proceedings. International mountain watershed symposium. Subalpine processes and water quality. Lake Tahoe 8.–9, júní 1988. Tahoe Resource Conservation District, South Lake Tahoe. 505–515. 1991–2000 Hákon Aðalsteinsson, Pétur M. Jónasson, Gunnar Steinn Jónsson & Sigurjón Rist 1991. Physical characteristics of Thingvallavatn. Oikos 64. 121–135. Sandlund, O.T., Jonsson, B., Pétur M. Jónasson, Hilmar J. Malmquist, Skúli Skúlason & Sigurður S. Snorrason 1991. The biology of threespine stickleback Gasterosteus aculeatus L. in Thingvallavatn. Oikos 64. 365–370. Sandlund, O.T., Karin Gunnarsson, Pétur M. Jónasson, Jonsson, B., Lindem, T., Kristinn P. Magnússon, Hilmar J. Malmquist, Hrefna Sigurjónsdóttir, Skúli Skúlason & Sigurður S. Snorrason 1991. The Arctic charr Salvelinus alpinus (L.) in Thingvallavatn. Oikos 64. 305–351. Pétur M. Jónasson, Hákon Aðalsteinsson & Gunnar Steinn Jónsson 1991. Production and nutrient supply of phytoplankton in subarctic, dimictic Thingvallavatn.Oikos 64. 162–187. Pétur M. Jónasson 1991. Einer Steemann Nielsen. Bls. 133–141 í: Oversigt over selskabets virksomhed 1990–1991. Det Kongelige Danske Videnskabernes Selskab, Kaupmannahöfn. Sigurður S. Snorrason, Lindem, T., Gydemo, R., Pétur M. Jónasson, Hilmar J. Malmquist, Jonsson, B., Sandlund, O.T. & Skúli Skúlason 1991. Population dynamics of the planktivorous arctic charr, Salvelinus alpinus (“murta”) in Thingvallavatn. Oikos 64. 352–364. Kairesalo, T., Gunnar Steinn Jónsson, Karin Gunnarsson, Lindegaard, C. & Pétur M. Jónasson 1991. Metabolism and community dynamics within Nitella opaca (Charophyceae) beds in Thingvallavatn. Oikos 64. 241–256. Pétur M. Jónasson (ritstj) 1992. Ecology of oligotrophic, subarctic Thingvalla- vatn. Oikos 64. 1–437. Pétur M. Jónasson 1992. Exploitation and conservation of the Thingvallavatn catchment area. Oikos 64. 32–40. Pétur M. Jónasson 1992. Iceland – an island astride the Mid-Atlantic Ridge. Oikos 64. 9–14. Pétur M. Jónasson 1992. The ecosystem of Thingvallavatn. Oikos 64. 405–434. Pétur M. Jónasson 1992. Thingvallavatn research history. Oikos 64. 15–32. Pétur M. Jónasson 1992. Continental rifting – energy pathways of two contrasting rift lakes. Presidential address. Verhandlungen der Internationa- len Vereinigung für Theoretische und Angewandte Limnologie 25. 1–14. Hilmar J. Malmquist, Sigurður S. Snorrason, Skúli Skúlason, Jonsson, B., Sandlund, O.T. & Pétur M. Jónasson 1992. Diet differentiation in polymorphic Arctic charr in Thingvallavatn. Journal of Animal Ecology 61. 21–35. Pétur M. Jónasson 1992. SIL: Retrospect and future prospects. SIL News 7. 1–2. Pétur M. Jónasson 1993. Lakes as a basic resource for development: The role of limnology. Memorie dell’Istituto italiano di Idrobiologia 52. 9–26. Pétur M. Jónasson, Jonsson, B. & Sandlund, O.T. 1994. Continental rifting and habitat formation: Arena for resource polymorphism in Arctic Charr. AMBIO 9. 162–169. Pétur M. Jónasson 1994. Einer Steemann Nielsen. Archiv für Hydrobiologie 131. 253–254.
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