An Introduction to Phytoplanktons: Diversity and Ecology by Ruma Pal, Avik Kumar Choudhury (auth.)

By Ruma Pal, Avik Kumar Choudhury (auth.)

The publication , ‘An creation to Phytoplanktons - variety and Ecology’ is especially worthy because it covers huge points of phytoplankton research together with the overall suggestion approximately cyanobacteria and algal nation. It includes varied themes on the topic of very uncomplicated proposal of phytoplanktons akin to, forms ,taxonomic description and the foremost for identity and so forth. including it, very smooth elements of phytoplankton learn together with varied methodologies wanted for learn scholars of botany, ecology, limnology and environmental biology also are included.

The first bankruptcy is especially easy and informative and describes algal and phytoplankton type, algal pigments, algal bloom and their regulate, algal pollution, wetlands algae, ecological value of phytoplanktons and so forth. A generalkey for id of universal phytoplankton genera can be integrated for college students who might be in a position to establish those genera in line with the sunshine microscopic characters.

In Chapters 2-4, various points of phytoplankton examine like fundamental productiveness, neighborhood trend research and their ecological parameter research were mentioned with specific techniques. Statistical research is usually mentioned in detail.

Chapter five contains case stories on the topic of overview, phytoplankton variety and dynamics.

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It is proved that the oceanic primary productivity is mainly maintained by pico (≤5 μm)- and nanoplanktonic (5–20 μm) cyanobacteria together with comparatively less microplanktonic (≥20 μm) cyanobacterial members. Marine planktonic cyanobacteria are represented by unicellular (Synechococcus, Prochlorococcus, Synechocystis, Aphanothece), colonial (Merismopedia), filamentous non-heterocystous (Lyngbya, Oscillatoria, Phormidium, Spirulina, Trichodesmium) and heterocystous taxa (Anabaena, Aphanizomenon, Nodularia, Richelia).

Family – Coscinodiscaceae (a) Cells lens shaped, round or cylindrical. Usually united into more or less long typical chains. Intercalary bands often 33 sculptured. Valve mantle usually strongly developed. Subfamily – Melosirinae Common genera – Melosira, Stephanopyxis Key to Genera Cells globose, elliptical or cylindrical, closely united in straight, beadlike chains by the centres of the valves. Valves either simply punctate or punctate and areolate. Intercalary bands none or many and narrow. Melosira Cells oblong, oval or nearly circular, with hexagonal areolations.

2 Nutrient Status of Wetland Ecosystem In a wetland ecosystem, nutrient efflux from different sources enriches the nutrient level; 29 therefore, high entropic condition resulted in periodical phytoplankton bloom. Efflux from the sediments is a major source of nutrients to the water column. Significant water input from the adjacent lake, river or streams is the main source of nutrients and algal inocula for lakeshore and riverside wetlands. Nutrient efflux due to various anthropogenic factors is another source of nutrients for wetlands; waste water from different sources like industrial waste and municipal waste also increases the nutrient level in wetland ecosystem, especially in stagnant wetlands.

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