A bioeconomic analysis of the potential of seaweed <i>Hypnea pseudomusciformis</i> farming to different targeted markets

Pereira, Stefany A.; Kimpara, Janaina Mitsue; Valenti, Wagner C.

doi:10.1080/13657305.2020.1803445

Cited by 11 publications

(4 citation statements)

References 37 publications

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“…In Central Sulawesi, the investment value was similar, and relatively low, for all ownership categories. Despite these variations, the investments made by seaweed farmers in their seaweed cultivation business can be considered low for all categories and across all sites and provinces, in line with the results of previous research (Pereira et al, 2020) that investment in seaweed cultivation tends to be low under all scenarios.…”

Section: Fisheries and Aquatic Sciencessupporting

confidence: 86%

Status of seaweed (Kappaphycus Alvarezii) farming land ownership and business productivity in Sulawesi Island: quantitative study

Adhawati,

Nurdin,

Azis

et al. 2024

Fish Aquat Sci

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The aim of this study was to analyze the income and productivity of seaweed farmers based on farmed land ownership status. This research was conducted in three provinces on the Sulawesi Island which are ranked among the 10 largest seaweed producers in Indonesia: Central Sulawesi, South Sulawesi and Southeast Sulawesi. The twelve study sites were determined based on 5 special criteria and 792 respondents fulfilled the criteria for seaweed farmers. Data were collected through field surveys and analyzed using qualitative and quantitative methods. Results showed that the seaweed farming areas are considered as private property with 4 types of marine land tenure or ownership status: own land, inherited land, leasehold land and purchased land. The productivity of seaweed farming land had a positive value greater than 1 in South Sulawesi and Southeast Sulawesi, and a positive value of less than 1 in Central Sulawesi. Seaweed cultivation in Central Sulawesi has not been managed effectively. At all sites, the maximum number of growing season cycles was 5 cycles/year. Optimal growing season conditions gave the highest marginal returns at 2-3 cycles/year with additional costs exceeding additional income for more than 3 cycles/year.

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Section: Fisheries and Aquatic Sciencessupporting

confidence: 86%

Status of seaweed (Kappaphycus Alvarezii) farming land ownership and business productivity in Sulawesi Island: quantitative study

Adhawati,

Nurdin,

Azis

et al. 2024

Fish Aquat Sci

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“…Marine brown seaweeds have been recognized as a traditional food widely consumed in Asian countries, including Korea, Japan, and China (Pereira et al, 2020). Recently, marine natural products have received great attention in the functional food, Fisheries and Aquatic Sciences nutraceutical, and cosmeceutical fields due to their antioxidant and anti-inflammatory properties (Nguyen et al, 2020).…”

Section: Discussionmentioning

confidence: 99%

Comparision of antioxidant and anti-inflammatory activities of enzyme assisted hydrolysate from Ecklonia maxima blades and stipe

Lee¹,

Je²,

Hwang³

et al. 2021

Fish Aquat Sci

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Marine brown seaweeds are a source of functional ingredients with various biological properties. They have been used in the food and functional food industries. Brown seaweeds are divided into three parts of blades, stipe, and root. Normally seaweed blades were used as raw materials for biological research. However, there are limited uses on stipes of Ecklonia maxima (E. maxima) depending on the physicochemical, nutritional, and biological properties. Besides, the comparative studies of two structures of E. maxima, blades and stipe didn't discover previously. This study aimed to compare the potent antioxidant and anti-inflammatory activities of the two structures of E. maxima, blades and stipe in vitro studies to increase the utilization of the two structures of E. maxima. The enzyme-assisted hydrolysate from E. maxima showed significant antioxidant and anti-inflammatory activities. Among them, celluclast-assisted hydrolysate from E. maxima blades (EMBC) and viscozyme-assisted hydrolysate from E. maxima stipe (EMSV) expressed significant protection on hydrogen peroxide-induced oxidative stress. Moreover, EMBC and EMSV treatment remarkably reduced nitric oxide production by downregulation of pro-inflammatory cytokine expressions in lipopolysaccharide-stimulated Raw 264.7 cells. Especially EMBC showed strong inhibition on pro-inflammatory cytokine production compared to EMSV. Taken together research findings suggest that EMBC and EMSV possessed potent antioxidant and anti-inflammatory properties and may be utilized as functional ingredients in the food and functional food sectors.

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“…Other studies have shown that Kappaphycus alvarezii and Sargassum vulgare were able to acclimatise in low-pH conditions (pH 6 and pH 6.7, respectively) [74], while M. pyrifera exhibited no changes in growth and photosynthetic rates under elevated oceanic CO 2 because it has the ability to utilise both CO 2 and HCO 3− [91]. Other economically important seaweeds such as Hypnea pseudomusciformis, Porphyra yezoensis, Gracilaria chilensis, G. changii, and G. lemaneiformis exhibited increased growth rates with an increase in dissolved CO 2 concentrations [4,46,81,106,117,143,144]. Hence, the growth of seaweeds partly depends on their HCO 3− uptake and utilisation capacity [96], and the impact on their photosynthetic rate is generally species-specific [27].…”

Section: Ocean Acidification and Seaweeds' Photosynthetic Rates And N...mentioning

confidence: 99%

Ocean Acidification and Aquacultured Seaweeds: Progress and Knowledge Gaps

Hengjie

Das

Zainee

et al. 2023

JMSE

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This systematic review aimed to synthesise the existing studies regarding the effects of ocean acidification (OA) on seaweed aquaculture. Ocean acidification scenarios may increase the productivity of aquacultured seaweeds, but this depends on species-specific tolerance ranges. Conversely, seaweed productivity may be reduced, with ensuing economic losses. We specifically addressed questions on: how aquacultured seaweeds acclimatise with an increase in oceanic CO2; the effects of OA on photosynthetic rates and nutrient uptake; and the knowledge gaps in mitigation measures for seaweed farming in OA environments. Articles were searched by using Google Scholar, followed by Scopus and Web of Science databases, limiting the publications from 2001 to 2022. Our review revealed that, among all the OA-related studies on macroalgae, only a relatively small proportion (n < 85) have examined the physiological responses of aquacultured seaweeds. However, it is generally agreed that these seaweeds cannot acclimatise when critical biological systems are compromised. The existing knowledge gaps regarding mitigation approaches are unbalanced and have overly focused on monitoring and cultivation methods. Future work should emphasise effective and implementable actions against OA while linking the physiological changes of aquacultured seaweeds with production costs and profits.

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A bioeconomic analysis of the potential of seaweed Hypnea pseudomusciformis farming to different targeted markets

Cited by 11 publications

References 37 publications

Status of seaweed (Kappaphycus Alvarezii) farming land ownership and business productivity in Sulawesi Island: quantitative study

Status of seaweed (Kappaphycus Alvarezii) farming land ownership and business productivity in Sulawesi Island: quantitative study

Comparision of antioxidant and anti-inflammatory activities of enzyme assisted hydrolysate from Ecklonia maxima blades and stipe

Ocean Acidification and Aquacultured Seaweeds: Progress and Knowledge Gaps

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