@article{Nurcahyanto_Pulungan_Abdillah_Afif_Panggabean_Kawirian_Rahman_Krisanti_2020, title={Secondary Productivity of Crambidae Family in Cigambreng River, Tapos Village, Bogor: Produktivitas Sekunder Famili Crambidae di Sungai Cigambreng, Desa Tapos, Bogor}, volume={4}, url={https://journal.ipb.ac.id/index.php/jurnalppt/article/view/30905}, DOI={10.29244/jppt.v4i1.30905}, abstractNote={<p>Secondary productivity is the formation of biomass of heterotrophic organisms in units of time including biomass that is lost in a certain time unit. The Crambidae family is an insect that has aquatic larvae and will become an air insect after the larval phase. This species has the potential to become a pest for agriculture. The study was conducted in October 2019 for one month. The Crambidae family species found consists of two species, <em>Petrophila</em> sp. and <em>Elophila</em> sp. The abundance of Crambidae during the study ranged from 100 ind/m<sup>2</sup> to 422 ind/m<sup>2</sup>. Secondary productivity was analyzed by the size frequency method. The secondary productivity of the Crambidae family in Cigambreng river waters for one month was 47.7915 g/m<sup>2</sup>/month, the biomass formed was 14.9669 g/m<sup>2</sup> and the P/B ratio was 3.1931.</p&gt;}, number={1}, journal={Journal of Tropical Fisheries Management}, author={Nurcahyanto, Arif and Pulungan, Ahyar and Abdillah, Didit and AfifMuhammad Irfan and PanggabeanGrin Tommy and KawirianRizky Regina and RahmanChichilia Qaila Azzahra and Krisanti, Majariana}, year={2020}, month={Apr.}, pages={8-13} }