Determination of Optimal Planting Distance between Seed Clump on Seaweed Verticulture Method

Pong-Masak, Petrus Rani; Sarira, Nelly Hidayanti

doi:10.22146/jfs.33310

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…Better knowledge of the factors driving seaweed productivity and product quality are essential for mitigating the likely effects of climate change on seaweed farming. Some effects can likely be mitigated by identifying seaweed cultivars that are more resistant to higher water temperatures, and developing new sub-surface cultivation techniques where water temperatures may be lower, such as vertical raft culture [101]. For such culture methods, the trade-off in potential productivity from reduced light availability will need to be balanced against the increased disease risk for shallow lines in the water column.…”

Section: Improving Farm Productionmentioning

confidence: 99%

Seaweed Aquaculture in Indonesia Contributes to Social and Economic Aspects of Livelihoods and Community Wellbeing

et al. 2021

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Seaweed farming in Indonesia is carried out throughout much of the archipelago and is mainly undertaken by smallholder farmers. Indonesia is the largest global producer of the red seaweeds Kappaphycus and Eucheuma, which are used to produce carrageenan, and is a major producer of Gracilaria, which is used to produce agar. Seaweed farming is attractive to farmers in rural coastal communities because capital and operating costs are low, farming techniques are not technically demanding, labour requirements are relatively low (allowing farmers to engage in other livelihoods), and production cycles are short (30–45 days), providing regular income. Using reported values for seaweed-farming income, we conclude that seaweed farming can, but does not always, lift rural households above the Indonesian poverty line. In addition to direct financial benefits, seaweed farming also contributes to human and social capital within seaweed farming households and communities. Achieving continued economic and social benefits from seaweed farming will require additional policy development, as well as research and development to support improved and more consistent seaweed productivity and improved product quality at the farm level, provision of effective extension and technical support services, and diversification of the existing value chains in order to reduce the impacts of price fluctuations that are associated with limited global commodity chains.

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Section: Improving Farm Productionmentioning

confidence: 99%

Seaweed Aquaculture in Indonesia Contributes to Social and Economic Aspects of Livelihoods and Community Wellbeing

et al. 2021

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The Utilization of Gracilaria verrucosa as Fish Processing Wastewater Biofilter

Sari

Adharini

2020

E3S Web Conf.

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Wastewater from the smoked-fish processing industry has been known to cause water pollution in Pengadulan Estuary, Jepara. This research aimed to assess the ability of Gracilaria verrucosa as biofilter for fish processing wastewater and investigate its growth rate. This study was conducted at the Center for Brackish Water Aquaculture (BBPBAP) Jepara from January to April 2019. This study used three different G. verucosa biomass in 60 L aquarium: 150 gram (A); 200 gram (B); and 250 gram (C) and control. The parameters observed in the study were seaweed biomass, nutrient uptake by seaweed, and water quality parameters: salinity, water temperature, pH, dissolved oxygen, TSS, BOD5, ammonia (NH3), nitrate (NO3), and phosphate (PO4). The results showed that G. verrucosa decreased ammonia, phosphate, and nitrate by 67.6%, 96%, and 37.1%, respectively. The result of RGR value has increased on the 10 th and 30 th day whereas on the 20 th day were declined. The highest RGR value obtained on the 10 th day on Treatment 1, which is 2.1% per day. It can be inferred that G. verrucosa is capable of increasing the water quality and the nutrient uptake in fish processing wastewater. Therefore, G. verrucosa held potential as both ecologically and economically sustainable biofilter.

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Growth performance of seaweed Kappaphycus alvarezii in different planting distance using long-line farming, Mandar Bay, West Sulawesi Indonesia

Husniah

Nur

Tenriware

et al. 2020

IOP Conf. Ser.: Earth Environ. Sci.

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The present study aimed to determine different planting distances on the growth of Kappaphycus Alvarez using the longline method. The present study was conducted from September to October 2018 in Mandar Bay, West Sulawesi. Water quality measurement was performed in situ during the study period, including temperature, salinity, pH, turbidity, and water current and data collected on the specific and absolute growth of seaweed. Prior to study, buoys, rope, length measurement device, and anchor were prepared for seaweed cultivation. The long-line method was applied for seaweed cultivation, and the seed of Seaweed Kappaphycus alvarezii obtained from local seaweed farmers. A total of 10 stretches rope using different planting distance of 15 cm (P1), 30 cm (P2), 45 cm (P3), and 60 cm (P4). The cultivation was carried out for 5 weeks. The results showed that the highest specific growth rate and absolute growth were obtained from P3 in which the absolute growth reached 165 gr, and the specific growth rate was 0.14%, respectively. This finding suggested that different planting distance affects the growth of seaweed. In addition, the environmental parameters for seaweed cultivation were still considered in optimum condition for cultivation.

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Determination of Optimal Planting Distance between Seed Clump on Seaweed Verticulture Method

Cited by 3 publications

References 4 publications

Seaweed Aquaculture in Indonesia Contributes to Social and Economic Aspects of Livelihoods and Community Wellbeing

Seaweed Aquaculture in Indonesia Contributes to Social and Economic Aspects of Livelihoods and Community Wellbeing

The Utilization of Gracilaria verrucosa as Fish Processing Wastewater Biofilter

Growth performance of seaweed Kappaphycus alvarezii in different planting distance using long-line farming, Mandar Bay, West Sulawesi Indonesia

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