Repository Universitas Pakuan

Detail Karya Ilmiah Dosen

Sata Yoshida Srie Rahayu, Ani Widiyati, Leny Hotimah

Abstrak :


Research conducted at Cirata reservoir which has been operated since 1983 and located in lied Cianjur regency, West Java. This reservoir used as hydropower electric, drinking water sources, irrigations, transportation, tourism, flood preventive and aquaculture activities. The aquaculture activity frequently caused negative impacts like a lot of waste produce by fish feed which was fallen in to the water. The reservoir received nutrient supply from some sources as like municipal, industry and agriculture waste besides the KJA.  Waste from aquaculture activity has been expected to increase substance like phosphate and nitrogen, that in a profuse value it will accelerate eutrophication process. This process caused  blooming of  phytoplankton.  The result of the research result showed that there were 5 families of phytoplankton : Chlorophyceae, Bacillariophyceae, Cyanophyceae, Dinophyceae and Desmiceae, zooplankton : Copepoda, Rotifer and Protozoa. The abudance of phytoplankton ranged from 393,75—4743,75 ind/l and zooplankton ranged from 93,75-993,75 ind/l. The range value of plankton biological index diversity (H`) = 2.12-3,33 ; dominant index (C) = 0,072-0,24 and equitability index (E) = 0,65-0,83. Physical-chemical parameters of water such pH 7-7,5 ; transparency 70-80 cm,  nitrate and nitrite ranged from 0,009-0,136 and 0,129-0,189 mg/l, amoniak ranged from 0,021-0,053 mg/l and ortophosphate always more than 0,01 mg/l.


Keywords : Aquaculture, Abundance, plankton biological index diversity , tilapia, probit method, maximum allowable concentration.

Tahun : 2007 Media Publikasi : jurnal nasional blm akreditasi
Kategori : Jurnal No/Vol/Tahun : 2 / 7 / 2007
ISSN/ISBN : 1411-9447
PTN/S : Universitas Pakuan Program Studi : BIOLOGI
Bibliography :


Ahl T. 1978. Eutrophication of Norwegian Freshwater in Relation to Natural Conditions. In : Eutrphication of deep lakes. Progess in Water Technology vol.12.No.2. Pergamon Press. Oxford. 49-61 p.













APHA 1989. Standard Methods for The Examination of Water and Waste Water Including Bottom Sediment and Sludges. 17 th ed. America. Publ. Health Association Inc., New York. 1527 p.

Boyd C.E. 1982. Water Quality Management for Pond Fish Culture. Amsterdam, Oxford. New York : Elsevier Scientific. 318 p.

Cole, A. Gerald. 1988. Limnology. The C.V. Mosby Company Saint Louis.

Goldman, C.R. and A.J. Horne. 1983. Limnology. MC. Graw Hill Book Company New York.

Hendersend-Seller, B. and H.R. Markland. 1978. Decaying lakes. The Origin and Control of Cultural Eutrophication. John Wiley and Sons ltd. Great Britain. 254 p.

Kilham, S.S, dan P. Kilham 1978 : Natural community bioasaay : Prediction of result base on nutrien physiology and competition.

Krebs, C. 1989. Ecological Methodology. Hal 295-363. Harper Collins Publisher. New York. 273 p.