The efficiency of tubular netting method of cultivation for Kappaphycus alvarezii (Rhodophyta, Gigartinales) on the southeastern Brazilian coast

Reis, Renata Perpetuo; Pereira, Roberta Rodrigues das Chagas; Góes, Henrique Geromel de

doi:10.1007/s10811-014-0330-6

Cited by 30 publications

(13 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…93.5 m of nylon line, 25 m 2 of nylon net and 55 m of polyethylene line). Reis et al (2015) confirmed the efficiency of the TN system for growing K alvarezii in Brazil. It was also a desirable technique for adoption in countries where environmental laws were introduced to curb seaweed cultivation.…”

Section: Dependence On Rudimentary Labour-intensive Technologysupporting

confidence: 64%

Phyconomy: the extensive cultivation of seaweeds, their sustainability and economic value, with particular reference to important lessons to be learned and transferred from the practice of eucheumatoid farming

Hurtado¹,

Neish²,

Critchley

2019

Phycologia

View full text Add to dashboard Cite

Kappaphycus and Eucheuma, known collectively as 'eucheumatoids', are two related genera of red seaweeds which currently lead the rankings for volume of global production of farmed macroalgae. Since 2009, the combined cultivated volume of these carrageenophytes overtook that of the brown seaweeds Laminaria (Saccharina) and Undaria for global production tonnages, according to statistics of the Food and Agriculture Organization of the United Nations (FAO). The Southeast Asian region, particularly Indonesia, the Philippines, Malaysia, Tanzania, and East Africa are the major producers of eucheumatoid biomass. Despite several success stories of red seaweed cultivation and the economic and socioeconomic value of their ecosystem services, there remain a number of salutary lessons to be learned from 'agronomic' practices applicable to their extensive cultivation. These case studies should be further developed, analysed, and adopted as best-practice recommendations for future socioeconomic prosperity, as well as both economic and environmental sustainability. In this review, we propose the use of the term 'phyconomy' (i.e. large-scale production of marine macroalgae for economic and industrial purposes) as an alternative to the term agronomy (i.e. terrestrial plant production).

show abstract

Section: Dependence On Rudimentary Labour-intensive Technologysupporting

confidence: 64%

Phyconomy: the extensive cultivation of seaweeds, their sustainability and economic value, with particular reference to important lessons to be learned and transferred from the practice of eucheumatoid farming

Hurtado¹,

Neish²,

Critchley

2019

Phycologia

View full text Add to dashboard Cite

show abstract

“…These are projections, and actual commercial production costs need to be ascertained and validated based on a survey of the market. Reis, Pereira, and Góes (2015) reported higher returns from the tube-net method than the raft method for Kappaphycus alvarezii cultivated in Brazil. Although an economic assessment was not attempted, it was considered that the tube net method was more economical in G. edulis cultivation for achieving higher yields (Mantri et al, 2017).…”

Section: Discussionmentioning

confidence: 94%

Feasibility of farming the agarose-yielding red alga Gracilaria dura using tube-net cultivation in the open sea along the Gujarat coast of NW India

2020

View full text Add to dashboard Cite

Despite some perceptions of economic risk, the global aquaculture industry continues to attract new entrepreneurs and investors. However, to sustain this trend, innovative and cost-effective strategies are needed. In recent years, algal farming has been shown to be a sustainable activity in the global Blue Economy. In 2015, harvests of the red algal agarophyte genus Gracilaria surged to over 114,100 tons dry weight which constituted ca. 91% of the total raw material for industrial agar production. We carried out a trial of experimental farming of the agar-yielding alga known as Gracilaria dura using a tube-net method along the Gujarat coast, India. The mean daily growth rate (DGR) of this agarophyte ranged from 1.88 ± 0.23% day −1 to 3.30 ± 0.25% day −1. Similarly, the mean yield varied between 0.62 ± 0.03 kg and 1.05 ± 0.02 kg fresh wt m −1 of tube-net. A Pearson correlation showed that both DGR and biomass yield were positively correlated with temperature. In addition, the DGR was significantly positively correlated with air temperature (r = 0.916; p < 0.01) whereas biomass yield was also positively correlated with surface seawater temperature (r = 0.986; p < 0.001). The economic projections for four harvests per year revealed that the value of the product was US$5577, while the investment required for the necessary tube-net infrastructure was US$1797 thereby providing US $1890 as profit to single farmers, a significant amount in the coastal communities of Gujarat. Thus, undertaking commercial farming of G. dura in Indian waters could diversify the livelihood of artisanal, coastal fishermen and further encourage the indigenous production of agarose.

show abstract

“…However, Lopes (2007) reported that ascidians and ectoprocts were the main triggers for lower photosynthetic activity that lessens cultivation productivity. Apparently, in site 3, loss of seedling biomass was by turtle herbivory and by more water movement caused by meteorological changes (Castelar et al 2009) that often break the floating rafts, decreasing productivity (Góes and Reis 2012;Reis et al 2014).…”

Section: Discussionmentioning

confidence: 99%

Biofouling in Brazilian commercial cultivation of Kappaphycus alvarezii (Doty) Doty ex P. C. Silva

Marroig

Reis

2015

J Appl Phycol

Self Cite

View full text Add to dashboard Cite

Biofouling filamentous red algae have been responsible for disease and costly loss of productivity in Asian Kappaphycus farms. Despite this, there is little information on the composition of biofouling composition organisms, their origin and their influence on commercial seaweed production. The aim of this study was to identify and quantify biofouling organisms at three Kappaphycus alvarezii commercial farms in southeastern Brazil and the influence of biofouling on commercial cultivation of this seaweed using floating rafts system between May 2008 and August 2009. Environmental factors had a greater influence on biofouling community composition than temporal factors. Not all the organisms found on the cultivation rafts and seedlings are the same as those on adjacent rocky shores. Foliose and filamentous algae were dominant biofoulers at the site with lower water movement and were easier to manage. The site with higher hydrodynamics was dominated by calcareous organisms which reduced K. alvarezii production by causing the rafts to sink, decreasing solar irradiance; together with greater water movement, this hampered cleaning of the cultivation structures. Endobionts were not found. Seedlings of K. alvarezii were not found fixed at sampling sites and adjacent rocky shores, indicating that the introduced species had not escaped to the wild.

show abstract

The efficiency of tubular netting method of cultivation for Kappaphycus alvarezii (Rhodophyta, Gigartinales) on the southeastern Brazilian coast

Cited by 30 publications

References 20 publications

Phyconomy: the extensive cultivation of seaweeds, their sustainability and economic value, with particular reference to important lessons to be learned and transferred from the practice of eucheumatoid farming

Phyconomy: the extensive cultivation of seaweeds, their sustainability and economic value, with particular reference to important lessons to be learned and transferred from the practice of eucheumatoid farming

Feasibility of farming the agarose-yielding red alga Gracilaria dura using tube-net cultivation in the open sea along the Gujarat coast of NW India

Biofouling in Brazilian commercial cultivation of Kappaphycus alvarezii (Doty) Doty ex P. C. Silva

Contact Info

Product

Resources

About