Cartas enviadas por Francisco de Belausteguigoitia a Justo Garate entre 1953 y 1976

10 cartas (mecanografiadas) ; entre 215x275mm y 215x140mm

Ecological study of chalk and limestone stream. Annual report October 1975 to September 1976

Few detailed studies have been made on the ecology of the chalk streams. A complex community of plants and animals is present and much more information is required to achieve an understanding of the requirements and interactions of all the species. It is important that the rivers affected by this scheme should be studied and kept under continued observation so that any effects produced by the scheme can be detected. The report gives a brief synopsis of work carried out during the third year of a four year ecological study sponsored jointly by the Thames Water Authority and the Central Water Planning Unit. It assumes . It assumes some familiarity with the investigations carried out on the River Lambourn during the preceding three years which was sponsored jointly by the Thames Conservancy and Water Resources Board (immediate predecessors of the present sponsoring organisations). (PDF contains 35 pages)

The Freshwater Biological Association and the International Biological Programme (1961-1976)

The involvement of the FBA in the primary productivity program is reviewed.

Analyses of treated sewage effluent from Grasmere Treatment Unit (1974-1976), England [Dataset]

This dataset provides raw data of chemical analyses made during studies on seasonal variations of treated sewage effluent from Grasmere Treatment Unit in Cumbria. Measurements of sodium, calcium, potassium, magnesium and chloride ions were taken between 1974 and 1976.

Major ions in 25 frequently sampled tarns in the English Lake District (1954-56, 1974-1976) [Dataset]

This dataset provides raw data of chemical analyses made during studies on seasonal variations of 25 frequently sampled tarns in Cumbria. Measurements of sodium, calcium, potassium, magnesium, pH, chloride ions, alkalinity, sulphite, strong acids and nitrate were taken between 1954 and 1956 and between 1974-1976.

Fangsituation im Januar 1976 in der Nordsee

Ergebnisse der 24. Forschungsfahrt des FFK "Solea"

Untersuchungen über die Nutzfischbestände im Barentsmeer, bei der Bäreninsel und Spitzbergen, Sommer 1976

192. (74.) Fahrt des FFS "Anton Dohrn" vom 15.7. - 18.8.1976