Pengaruh Limbah Organik terhadap Status Tropik, Rasio N/P serta Kelimpahan Fitoplankton di Waduk Panglima Besar Soedirman Kabupaten Banjarnegara
Abstrak: The increased of
organic substance pollutans in waters as one of stimulate factors for
phytoplankton growth. The input of organic matter from antrophogenic activity tend to influence the trophic state
of reservoir. The aims of this research are to examine the influence of organic
waste to Panglima Soedirman reservoir concerning the trophic state, Redfield
ratio N and P, also the relation with abundance of phytoplankton. This research
used survey methods with purposive sampling technique on 7 obsevation stations
with 3 repeating conducted on May-July 2013. The result of the research showed
that the input of organic matter increased in BOD5, COD and ammonia in
reservoir and trophic state. Redfield ratio was shown 19,13-65,82 which means P
as a limiting factor. Relationship between N/P with the abundance of
phytoplankton with degree was strong correlated with chlorophyta and
chrysophyta.
Kata Kunci: organic matter,
tropic status, Redfield ratio N/P, phytoplankton abundance, Panglima Besar
Soedirman reservoir
Penulis: Endang Widyastuti,
Sukanto Sukanto, Nuning Setyaningrum
Kode Jurnal: jpbiologidd150861
