SELEKSI RUMPUT LAUT Kappaphycus striatum DALAM UPAYA PENINGKATAN LAJU PERTUMBUHAN BIBIT UNTUK BUDIDAYA

Parenrengi, Andi; Fahrur, Mat; Makmur, Makmur; Mulyaningrum, Sri Redjeki Hesti

doi:10.15578/jra.11.3.2016.235-248

Cited by 8 publications

(3 citation statements)

References 10 publications

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“…In this study, the score index (between one and four) was utilized, where one indicates a score with a not-suitable category, and four is very suitable [14] and [17]. The distribution of the score of the level of suitability of each parameter refers to [18], Decree of the State Minister of Environment Number 51 of 2004, concerning Seawater Quality Standards [11], [15] and [19]. Furthermore, in IFMR-713, the weight score was determined based on the level of parameter importance in influencing the suitability of seaweed cultivation.…”

Section: Methodsmentioning

confidence: 99%

Analysis of suitable site for seaweed aquaculture development in the Indonesian Sea (a case study of Fisheries Management Region-713), with the application of numerical model data

Rintaka,

Berlianty

2023

IOP Conf. Ser.: Earth Environ. Sci.

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Seaweed is an excellent product for cultivation in Indonesia therefore the expansion of seaweed aquaculture is crucial to be supported by the availability of data and accurate information. The Republic of Indonesia’s Fishery Management Region-713 (IFMR-713) has the potential for the development of seaweed cultivation. This study aims to conduct a spatial analysis of suitability for the development of seaweed cultivation using numerical models data based on multi-criteria evolution (MCE) in the IFMR-713. The primary data used for the analysis are (1) physical geographical parameters (includes: bathymetry, wave height, and current) and (2) water quality parameters (contains: temperature, salinity, pH, phosphate, and nitrate). The potential seaweed cultivation area in IFMR-713 is 63,125 km2 (13.12%) of the total area in IFMR-713 (481,300 km2). We also found that the local community utilized only a minor part of the very suitable area categorized for cultivating seaweed (based on data and information from each Local Government), so there is still an opportunity to develop the utilization into the very appropriate category. However, it is recommended that its use should be based on environmental methods and adapted to the coastal spatial plan to be used as an essential foundation to support the application of ecosystem-based fisheries.

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Section: Methodsmentioning

confidence: 99%

Analysis of suitable site for seaweed aquaculture development in the Indonesian Sea (a case study of Fisheries Management Region-713), with the application of numerical model data

Rintaka,

Berlianty

2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…Dari hasil analisis pola pertumbuhan rumput laut (Tabel 1), diperoleh estimasi respons seleksi pada kisaran 12,17-25,76 g atau sebesar 21,48%-22,34% dan diferensial seleksi pada kisaran 6,20-12,88 g atau sebesar 9,70%-10,16%. Respons seleksi dan diferensial seleksi yang diperoleh pada penelitian lebih rendah dari hasil yang diperoleh Parenrengi et al (2016)…”

Section: Pertumbuhanunclassified

PEREMAJAAN BIBIT RUMPUT LAUT Gracilaria verrucosa HASIL KULTUR JARINGAN MELALUI SELEKSI MASSA

Mulyaningrum

Asaad

Suwoyo

et al. 2019

Jurnal Riset Akuakultur

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Penelitian ini bertujuan untuk menguji performa bibit rumput laut Gracilaria verrucosa hasil kultur jaringan yang diremajakan dengan metode seleksi massa. Penelitian dilaksanakan di tambak percobaan Marana, Maros, Sulawesi Selatan; menggunakan dua petakan tambak berukuran sekitar 2.500 m2. Seleksi dilakukan berdasarkan perhitungan laju pertumbuhan harian (LPH), menggunakan sistem long line selama dua siklus dengan durasi 30 hari/siklus. Bibit rumput laut hasil seleksi kemudian dipelihara dengan sistem tebar dasar dan dibandingkan dengan kontrol internal dan kontrol eksternal dengan memasang sembilan unit hapa berukuran 1 m x 1 m x 1 m, dengan tiga ulangan untuk masing-masing perlakuan. Perhitungan LPH, kandungan agar, dan kekuatan gel dilakukan setiap 30 hari dan setiap 15 hari dilakukan monitoring terhadap kualitas air yakni salinitas, suhu, nitrat, dan fosfat. Hasil yang diperoleh memperlihatkan adanya peningkatan LPH yang signifikan (P<0,05) dari siklus-I (2,67 ± 0,38%/hari) menjadi (3,56 ± 0,25%/hari) pada siklus-II, dengan respons seleksi sebesar 21,48%-22,34% dan diferensial seleksi sebesar 9,70%-10,16%. Pertumbuhan rumput laut hasil seleksi lebih tinggi (3,23 ± 0,50%/hari) dibandingkan dengan kontrol internal (2,12 ± 0,02%/hari), dan kontrol eksternal (1,69 ± 0,09%/hari) (P<0,05). Kontrol internal memiliki kandungan agar yang lebih tinggi (20,07 ± 12,97%) dari rumput laut hasil seleksi (16,07 ± 1,58%) dan kontrol eksternal (8,29 ± 1,69%) (P<0,05); namun hasil seleksi memiliki kekuatan gel yang lebih tinggi (761,15 ± 208,90 g/cm2) dari kontrol internal (322,44 ± 244,29 g/cm2), dan kontrol eksternal (297,42 ± 44,16 g/cm²) (P<0,05). Peremajaan bibit rumput laut hasil kultur jaringan dengan metode seleksi massa mampu meningkatkan performa bibit rumput laut G. verrucosa.This study was aimed to determine the performance of tissue-cultured seaweed seed Gracilaria verrucosa, which was propagated using mass selection method. The study was conducted in the experimental ponds in Marana, Maros, South Sulawesi. The mass selection was conducted in two ponds of 2,500 m2. The selection was made by culturing the seaweed seed using the long line system for two cycles in 30 days/cycle duration during which the daily growth rates (DGR) of seaweed seeds were measured. The selected seaweed seeds were then cultivated in the ponds using broadcast system and the growth was compared with the internal and external controls consisted of nine units of 1 m x 1 m x 1 m hapa, with three replications for each treatment (selected seed, internal control, and external control). The measurements of DGR, agar yield, and gel strength were conducted every 30 days, while water quality monitoring i.e. salinity, temperature, nitrate, and phosphate were conducted every 15 days. The results showed that the DGR of seaweed seed increased significantly (P<0.05) from 2.67 ± 0.38%/day in cycle-I to 3.56 ± 0.25%/day in cycle-II, the selection response was 21.48%-22.34% and the differential selection was 9.70%-10.16%. The daily growth rate of selected seaweed seed was significantly higher (3.23 ± 0.50%/day) (P<0.05) compared to internal (2.12 ± 0.02%/day) and external controls (1.69 ± 0.09%/day). Internal control has higher agar yield (20.07 ± 12.97%) compared to the selected seed (16.07 ± 1.58%) and external control (8.29 ± 1.69%) (P<0,05). The selected seed has higher gel strength (761.15 ± 208.90 g/cm2) compared to internal control (322.44 ± 244.29 g/cm2), and external control (297.42 ± 44.16 g/cm2) (P<0,05). Propagated tissue-cultured seaweed seed using the mass selection method could improve the overall performance of seaweed seed.

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“…Karakteristik karagenan yang dihasilkan memiliki rendemen sebesar 27,3%, kekuatan gel 700 g/cm 2 dan viskositas 121,60 cP. Parenrengi et al (2016) juga melakukan esktraksi karagenan pada rumput laut K. striatum dengan menggunakan perbandingan air pengekstrak 1:30 (b/v) dengan suhu ekstraksi 100°C selama 30 menit yang sebelumnya rumput laut dipanaskan dengan autoklaf. Rendemen karagenan yang dihasilkan rata-rata sebesar 28,77% dengan kekuatan gel rata-rata sebesar 539,78 g/cm 2 .…”

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KARAKTERISTIK KARAGENAN SEMI-MURNI DARI RUMPUT LAUT Kappaphycus striatum DAN Kappaphycus alvarezii

Arzani

Muhandri

Yuliana

2020

jtip

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Kappaphycus striatum and Kappaphycus alvarezii are kappa carrageenan-producing seaweeds. K. striatum is also a source of iota carrageenan. The study was aimed to evaluate the effects of extraction time and alkali concentration on the characteristics of semi refined carrageenan (SRC) produced from seaweeds K. striatum and K. alvarezii. The SRC was extracted prepared by cooking dried seaweed samples in KOH solution (ratio seaweed:KOH solution= 1:40) with KOH concentrations of 6, 8 and 10% for 60 and 120 minutes at 70°C. The results showed that the best SRC characteristics produced from K. striatum seaweed were obtained from the extraction process at 6% KOH for 60 minutes which yielded 46.05±0.16%, carrageenan with gel strength of 362,07±21,44 g/cm2 and viscosity at 70°C 74 cP. Meanwhile the best characteristics of SRC produced from K. alvarezii seaweed were obtained from extraction in 10% KOH for 60 minutes having the highest yield of 39,03±0.95%, gel strength 1130.67± 16.34 g/cm2 and viscosity at 70°C of 59 cP. FTIR analysis showed that the functional groups which are kappa carrageenan and iota carrageenan characteristics were found in both samples at wave numbers of 846.97-847.09 and 800.53-801.29 cm-1, respectively.

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SELEKSI RUMPUT LAUT Kappaphycus striatum DALAM UPAYA PENINGKATAN LAJU PERTUMBUHAN BIBIT UNTUK BUDIDAYA

Cited by 8 publications

References 10 publications

Analysis of suitable site for seaweed aquaculture development in the Indonesian Sea (a case study of Fisheries Management Region-713), with the application of numerical model data

Analysis of suitable site for seaweed aquaculture development in the Indonesian Sea (a case study of Fisheries Management Region-713), with the application of numerical model data

PEREMAJAAN BIBIT RUMPUT LAUT Gracilaria verrucosa HASIL KULTUR JARINGAN MELALUI SELEKSI MASSA

KARAKTERISTIK KARAGENAN SEMI-MURNI DARI RUMPUT LAUT Kappaphycus striatum DAN Kappaphycus alvarezii

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