POTENSI PENGGUNAAN KOMPOS SELADA AIR (Nasturtuim officinale) TERHADAP PERTUMBUHAN KUTU AIR (Daphnia sp.)

NITA, SALSABILA (2023) POTENSI PENGGUNAAN KOMPOS SELADA AIR (Nasturtuim officinale) TERHADAP PERTUMBUHAN KUTU AIR (Daphnia sp.). Diploma thesis, UIN RADEN INTAN LAMPUNG.

	PDF Download (3MB)
	PDF Restricted to Repository staff only Download (4MB)

Abstract

ABSTRAK Daphnia sp. merupakan pakan alami potensial bagi ikan air tawar terutama larva ikan dikarenakan kandungan nutrisinya yang tinggi. Namun, populasinya mulai berkurang sering dengan tingginya tingkat pencemaran air saat ini sehingga perlu dilakukan pengkulturan Daphnia sp. Pengkulturan Daphnia sp. yang memiliki sifat non filter feeder bergantung pada pakan yang tersedia pada media kultur berupa detritus, fitoplankton, maupun alga planktonik. Pemupukan media kultur dengan kompos selada air (Nasturtium officinale) dinilai mampu menyediakan pakan bagi Daphnia sp. berupa detritus sisa hasil proses pengomposan. Selain itu, kompos selada air (Nasturtium officinale) juga memiliki kadar nitrogen yang tinggi yang merupakan unsur utama dalam menumbuhkan fitoplankton dan alga planktonik pada media kultur. Penelitian ini dilakukan di Kelurahan Gunung Agung, Kecamatan Langkapura, Kota Bandar Lampung. Jenis penelitian yang digunakan yaitu kuantitatif dengan Rancangan Acak Lengkap (RAL) dengan 5 perlakuan dengan 3 kali ulangan, yaitu: P1 (0,25gr/l kompos), P2 (0,50gr/l kompos), P3 (7,5gr/l kompos), PP (komersil), dan PN (tanpa perlakuan) dengan menggunakan 50 individu Daphnia sp. Penelitian dilakukan selama 14 hari dengan parameter penelitian meliputi populasi, pertumbuhan, dan kualitas air. Data yang didapatkan dianalisa menggunakan SPSS dengan uji ANOVA dan uji lanjut Duncan dengan taraf signifikansi 0,05. Hasil analisis menunjukkan bahwa perlakuan kompos selada air (Nasturtium officinale) berpengaruh nyata terhadap populasi dan pertumbuhan kutu air (Daphnia sp.). Perlakuan P1 (0,25gr/l) merupakan perlakuan paling optimal (p<0,05) dengan puncak populasi pada hari ke-6 sebanyak 133 individu dan puncak pertumbuhan dihari yang sama sebanyak 14 individu. Kualitas air yang terukur adalah suhu 26oC, pH 7,8-8,1, TDS 165-169, dan DO 7,4-7,6. Taraf ini merupakan kualitas air yang baik bagi pertumbuhan Daphnia sp. Kata Kunci: Kutu air (Daphnia sp.), Selada air (Nasturtium officinale), Pertumbuhan, Kompos. iii ABSTRACT Daphnia sp. is a potential natural feed for freshwater fish, especially fish larvae due to its high nutrient content. However, the population began to decrease along with the current high level of water pollution so it was necessary to cultivate Daphnia sp.Culture Daphnia sp. which has non-filter feeder properties depending on the feed available in the culture media in the form of detritus, phytoplankton, and planktonic algae. Fertilization of culture media with watercress compost (Nasturtium officinale) is considered capable of providing feed for Daphnia sp. in the form of residual detritus from the composting process. In addition, watercress compost (Nasturtium officinale) also has a high nitrogen content which is the main element in growing phytoplankton and planktonic algae in culture media. This research was conducted in Gunung Agung Village, Langkapura District, Bandar Lampung City. The type of research used was quantitative with a Complete Randomized Design (RAL) with 5 treatments with 3 repeats, namely: P1 (0.25gr / l compost), P2 (0.50gr / l compost), P3 (7.5gr / l compost), PP (commercial), and PN (without treatment) using 50 individuals Daphnia sp. The study was conducted for 14 days with research parameters including population, growth, and water quality. The data obtained were analyzed using SPSS with ANOVA test and Duncan advanced test with significance level of 0.05. The results of the analysis showed that the treatment of watercress compost (Nasturtium officinale) had a noticeable effect on the population and growth of water fleas (Daphnia sp.). The P1 treatment (0.25gr/l) was the most optimal treatment (p<0.05) with a population peak on day 6 of 133 individuals and a peak growth on the same day of 14 individuals. The measured water quality is 26oC, pH 7.8-8.1, TDS 165-169, and DO 7.4-7.6. This level is a good water quality for the growth of Daphnia sp. Keywords: Water fleas (Daphnia sp.), Watercress (Nasturtium officinale), Growth, Compost.

Actions (login required)

View Item