Limnological survey of the Cheshire, Shropshire, Staffordshire Meres. Interim data report

This is the Limnological survey of the Cheshire, Shropshire, and Staffordshire Meres: Interim data report produced by the University of Liverpool in 1992. This report looks at the Limnological survey data from Cheshire, Shropshire and Staffordshire Meres. Limnological data of the report covers: changes in water conductivity, Phenolphthalein Alkalinity, Total Alkalinity, pH, Chloride concentrations, Soluble reactive Phosphorus, Total Phosphorus, Nitrate Nitrogen, Ammonium Nitrogen, Silicate, Chlorophyll, Carotenoids, Secci disk depth, changes in Trophic Score, changes in DAFOR scores for submerged and floating plants and Oxygen saturation during summer. This report also contains Seasonal maps of different Meres. The more important limnological data are plotted as seasonal means in relation to the sampling sites. Conductivity is shown as μSiemens per cm, alkalinity as milliequivalents per litre. Total and soluble reactive (available inorganic) phosphorus are shown in terms of P in μg per litre. Nitrate and ammonium are shown in terms of N in mg per litre. Chlorophyll a is given as μg per litre. A profile of oxygen saturation is shown. These profiles were obtained towards the middle of the day in August and September.

Influence of nitrogen salts on growth and physiological responses of Rhizophora apiculata Blume in non-aerated water culture

Influence of two different forms of nitrogen on growth and physiological aspects of water-cultured seedlings of Rhizophora apiculata was studied. Of the two forms of nitrogen supplied to the growth medium, ammonium nitrogen was better than nitrate nitrogen by exhibiting increased dry matter production, shoot length, leaf area and also enhanced the contents of carotenoids, chlorophylls and their presence in photosystems and light harvesting protein complex.