LAJU PERTUMBUHAN Chaetoceros sp. PADA PEMELIHARAAN DENGAN PENGARUH WARNA CAHAYA LAMPU YANG BERBEDA

Sopian, Topan; Junaidi, Muhammad; Azhar, Fariq

doi:10.21107/jk.v12i1.4873

Cited by 8 publications

(13 citation statements)

References 1 publication

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“…Apart from the high protein content, Chaetocheros sp. has other nutritional content, namely 35% protein, 6.9% fat, 6.6% carbohydrate, and 28% ash content [13].…”

Section: Figure 1 Chaetocheros Sp Magnification 400xmentioning

confidence: 99%

Monitoring the distribution of phytoplankton in vannamei shrimp cultivation in intensive system, Banyuwangi, East Java, Indonesia

Zulkarnain,

Sari,

Sari

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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The increase in Vannamei shrimp farming is closely related to an increase in the demand for shrimp feed. At present there are many technological developments in cultivating natural feed. The natural feed here refers to plankton which can be used as natural food for every organism of larvae in waters. Conditions in water will affect the distribution pattern of phytoplankton either horizontally or vertically. As a result, it affects the abundance of phytoplankton and subsequently also affects the value of the main productivity. The purpose of study is to find out the cultivation process and to find out the types of plankton that exist in Vannamei shrimp farming ponds. Plankton observations were carried out directly with the help of a microscope and haemocytometer, while the measurement of water quality using each instrument had been prepared for each parameter. The results of plankton observations found species of Chaetoceros sp., Oocystis sp., Oscillatoria sp. and Cyclotella sp. while the water quality measurements obtained temperature (29-31°C); DO during the day (7.6-9.5 ppm) and at night (4.0-4.6 ppm); pH in the morning (7.8-8, 5) and daylight (8.1-9.0); and salinity 26-27 ppt. The application of probiotics used carbon sources derived from molasses and katul.

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“…Apart from the high protein content, Chaetocheros sp. has other nutritional content, namely 35% protein, 6.9% fat, 6.6% carbohydrate, and 28% ash content [13].…”

Section: Figure 1 Chaetocheros Sp Magnification 400xmentioning

confidence: 99%

Monitoring the distribution of phytoplankton in vannamei shrimp cultivation in intensive system, Banyuwangi, East Java, Indonesia

Zulkarnain,

Sari,

Sari

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…The calculation on relative growth rate is determined using this formula [9]: Information: RGR = ((Zt -Zo)/Zo) x 100% (4) Information: RGR : Absolute growth rate (cells/mL) Zo : Cell population density (cells/mL) at the beginning of the observation period Zt : Cell population density (cells/mL) at the end of the observation period…”

Section: Relative Growth Rate (Rgr)mentioning

confidence: 99%

The Effect of Culture Media Types on the Growth of Marine Microalgae Chlorella vulgaris

Mardalisa

Zalfiatri

Rahmayuni

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Chlorella vulgaris is one of the marine microalgae that has potential to be developed, one of which is the renewable energy sector, biodiesel. The growth media used in the biomass production of microalgae are very various, such as Walne, Guillard, and Agriculture Fertilizer (Urea). This study aims to determine the effect of types of growth media on population density, absolute growth, relative growth rate, and specific growth rate of C. vulgaris. Study on 3 media types of microalgae growth shows the density of C. vulgaris cultured on a laboratory scale experienced the highest peak density in the Guillard media on the 3rd day around 7430 x 104 cells/mL. However, the lowest density peak was in the Urea culture about 2520 x 104 cells/mL, followed by Walne media around 3335 x 104 cells/mL. The highest absolute growth average was found in the Guillard media about 6311 x 104 cells/mL and the lowest was in the Urea and Walne media about 1401 x 104 cells/mL and 2216 x 104 cells/mL, respectively. Meanwhile, in C. vulgaris culture, it was found that Guillard and Walne media produced the highest relative growth of 564% and 198% and the lowest was at 125% for Agriculture Fertilizer (Urea). In the process of culturing C. vulgaris for 6 days, it was found that Guillard media showed the highest average specific growth rate of 58% per day and the lowest was on Urea culture as much as 27% per day, followed by Walne media about 36%.

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“…Pencahayaan pada penelitian ini menggunakan lampu TL 18 watt (setara 1.421 lux) dan 20 watt (setara 1.218 lux). Lampu TL yang digunakan adalah yang berwarna putih (Kusdarwati et al, 2011;Sopian et al, 2019).…”

Section: Materi Dan Metodeunclassified

“…Lingkungan kultur yang diharapkan selama penelitian ini adalah suhu 29-35° C, salinitas 30-35 ppt, dan pH 8-9,5 yang merupakan lingkungan kultur yang baik bagi Chaetoceros sp. (Sopian et al, 2019). Perhitungan kepadatan sel C. calcitrans dilakukan setiap hari pada pukul 09.00 WIB dan dilakukan di bawah mikroskop binokuler dengan perbesaran 40 x 10.…”

Section: Kultivasi C Calcitransunclassified

Pertumbuhan Mikroalga Chaetoceros calcitrans Pada Kultivasi Dengan Intensitas Cahaya Berbeda

2021

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Chaetoceros calcitrans can be used for natural food in aquaculture. Microalgae growth is influenced by several factors, one of which is light intensity. This study aims to determine the intensity of light that can produce the best growth in C. calcitrans microalgae. The study design used was a completely randomized design (CRD) with two replications. This study uses a treatment (light intensity) with four levels of treatment, namely 1000 (control), 1500, 2000 and 2500 lux with a duration of lighting 12 hours light: 12 hours dark. Calculation of density and measurement of water quality parameters are carried out every day during the cultivation process. Harvesting is done in a stationary phase. The results showed that different light intensities affected the growth of C. calcitrans microalgae (p=0,000). Light intensity of 2500 lux in medium scale C. calcitrans (60 L) culture can produce the highest growth on the tenth day which is 67x10⁵ cells/ml and biomass 13,75 grams.Chaetoceros calcitrans merupakan mikroalga yang dapat digunakan sebagai pakan alami. Pertumbuhan mikroalga dipengaruhi oleh beberapa faktor, salah satunya adalah intensitas cahaya. Penelitian ini bertujuan untuk mengetahui intensitas cahaya yang dapat menghasilkan pertumbuhan terbaik pada mikroalga C. calcitrans. Rancangan penelitian yang digunakan adalah rancangan acak lengkap (RAL) dengan dua kali pengulangan. Penelitian ini menggunakan perlakuan (intensitas cahaya) dengan empat taraf perlakuan yaitu 1000 (kontrol), 1500, 2000 dan 2500 lux dengan durasi pencahayaan 12 terang : 12 gelap. Perhitungan kepadatan dan pengukuran parameter kualitas air dilakukan setiap hari selama proses kultivasi. Pemanenan dilakukan pada fase stasioner. Hasil penelitian menunjukkan bahwa intensitas cahaya yang berbeda mempengaruhi pertumbuhan mikroalga C. calcitrans (p=0,000). Intensitas cahaya 2500 lux pada kultur C. calcitrans skala medium (60 L) dapat menghasilkan pertumbuhan tertinggi pada hari ke sepuluh yaitu 67 x 105 sel/ml dan biomasa kering 13,75 gram.

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LAJU PERTUMBUHAN Chaetoceros sp. PADA PEMELIHARAAN DENGAN PENGARUH WARNA CAHAYA LAMPU YANG BERBEDA

Cited by 8 publications

References 1 publication

Monitoring the distribution of phytoplankton in vannamei shrimp cultivation in intensive system, Banyuwangi, East Java, Indonesia

Monitoring the distribution of phytoplankton in vannamei shrimp cultivation in intensive system, Banyuwangi, East Java, Indonesia

The Effect of Culture Media Types on the Growth of Marine Microalgae Chlorella vulgaris

Pertumbuhan Mikroalga Chaetoceros calcitrans Pada Kultivasi Dengan Intensitas Cahaya Berbeda

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