Comparison of the cultivation performance between Korean (Sugwawon No. 301) and Chinese strains (Huangguan No. 1) of kelp Saccharina japonica in an aquaculture farm in Korea

Hwang, Eunkyoung; Liu, Fuli; Lee, Ki Hyun; Ha, Dong Su; Park, Chan Sun

doi:10.4490/algae.2018.33.2.4

Cited by 20 publications

(12 citation statements)

References 14 publications

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“…Over the last few years, genomic resources for marine macroalgae have been established, especially for the filamentous brown alga Ectocarpus siliculosus [3], the carrageenophyte Chondrus crispus [4] and more recently, the kelp Saccharina japonica [5]. First initiated in China in the 1950s, industrial macroalgal breeding led to the development of kelp cultivars with increased yield and iodine content ( [6] and references included).…”

Section: Introductionmentioning

confidence: 99%

Parallelisable non-invasive biomass, fitness and growth measurement of macroalgae and other protists with nephelometry

et al. 2020

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With the exponential development of algal aquaculture and blue biotechnology, there is a strong demand for simple, inexpensive, high-throughput, quantitative phenotyping assays to measure the biomass, growth and fertility of algae and other marine protists. Here, we validate nephelometry, a method that relies on measuring the scattering of light by particles in suspension, as a non-invasive tool to measure in real-time the biomass of aquatic microorganisms , such as microalgae, filamentous algae, as well as non-photosynthetic protists. Nephelometry is equally applicable to optic density and chlorophyll fluorescence measurements for the quantification of some microalgae, but outperforms other spectroscopy methods to quantify the biomass of biofilm-forming and filamentous algae, highly pigmented species and non-photosynthetic eukaryotes. Thanks to its insensitivity to the sample's pigmentation, nephelometry is also the method of choice when chlorophyll content varies between samples or time points, for example due to abiotic stress or pathogen infection. As examples, we illustrate how nephelometry can be combined with fluorometry or image analysis to monitor the quantity and time-course of spore release in fertile kelps or the progression of symptoms in diseased algal cultures.

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Section: Introductionmentioning

confidence: 99%

Parallelisable non-invasive biomass, fitness and growth measurement of macroalgae and other protists with nephelometry

et al. 2020

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“…301' has been made to the Korean government and once the registration process is completed, it will be distributed to seaweed growers. Hwang et al (2017Hwang et al ( , 2018a demonstrated that cultivars displayed different morphological traits, temperature tolerance, and resistance to wave action when they grew in different environments. There is, therefore, the potential to increase productivity on seaweed farms by developing unique cultivars for specific environments.…”

Section: Species Registration No Breeding Methods Name Of Cultivar Yearmentioning

confidence: 99%

Seaweed cultivation and utilization of Korea

Hwang¹,

Park²

2020

ALGAE

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Tribute to This paper is dedicated to the memory of Professor Chul Hyun Sohn (1943~2019) Mariculture is regarded as the only option to supply the increasing demands for seaweeds as human food, feeds, fodder, and phycolloids in a sustainable manner. Technologies for culturing a range of seaweed species have been developed successively in Korea since the 1970s. In 2017, Korean marine farms produced 1,761,526 t of seaweed. The key focus of the industry is on the production of Pyropia (523,648 t), Undaria (622,613 t), and Saccharina (542,285 t). Pyropia is economically the most important species in Korea, accounting for up to 68% of total production value. As the top exporter of Pyropia in the world, Korea exported up to US $525 million of Pyropia products to 110 countries in 2018. Other economically important genera include Sargassum, Ulva, Capsosiphon, Codium, and Gracilariopsis, all of which are used for food, and Gelidium, Pachymeniopsis, and Ecklonia which are used as raw material for phycocolloid extraction. Significant work has gone into developing more productive strains of key seaweed species, and in 2012 the Korean government began to certify seaweed varieties. To date, 19 seaweed cultivars have been registered including 13 Pyropia, 5 Undaria, and 1 Saccharina. The industry is now seeking not only to increase productivity but also to add value through processing. Convenience foods and snacks have been developed that target health-conscious consumers and utilize the nutritional properties of seaweeds. The industry is also seeking to promote the sustainability of seaweed farming. One seaweed company in Korea obtained the world's first ASC-MSC (Aquaculture Stewardship Council-Marine Stewardship Council) certification in 2019 and more are expected to follow their lead. With continued research support, the Korean seaweed industry plans to continue to expand to meet new market demands at a sustainable pace.

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“…Developments of gametophytebased seed banks and new strains of kelp produced via hybridisation may be critical to help resolve such issues. With these technologies, temperature-tolerant kelp germplasm could be provided to growers in southern New England, similar to what has been done traditionally in Asia (Hwang et al 2017(Hwang et al , 2018(Hwang et al , 2019Zhang et al 2016Zhang et al , 2018. Kelps have been the major seaweed aquaculture species in the United States for several reasons; for example, publicly funded cultivation technologies for nursery and open-water farming have been made available through open-source portals (Connecticut Sea Grant 2014;Flavin et al 2013;Redmond et al 2014a).…”

Section: Challenges and Lessons Learned From Current Practicesmentioning

confidence: 99%

Opportunities, challenges and future directions of open-water seaweed aquaculture in the United States

2019

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Seaweed aquaculture is a relatively young industry in the United States compared to Asian countries. Early attempts at seaweed aquaculture in California, Washington State, New York and the Gulf of Maine in the 1980s and 1990s did not result in commercial production but provided important lessons. Since 2010, commercial cultivation of kelp (Saccharina latissima, Laminaria digitata, and Alaria esculenta) and other seaweeds (Palmaria palmata and Porphyra umbilicalis) began in the Gulf of Maine and Long Island Sound. Seaweed aquaculture is now a fast-growing maritime industry, especially in New England. If seaweed aquaculture is to maintain its momentum, it is important to (1) emphasise the environmental benefits; (2) domesticate a variety of local species; and (3) diversify seaweed products for food, animal feed, phycocolloids, cosmeceuticals, nutraceuticals, and ultimately biofuels if it becomes economically viable due to the cost of production. The exclusive economic zone (EEZ) of the United States offers opportunities for expansion of seaweed aquaculture in an area greater than the entire land mass of the United States and with limited user conflicts. This study reviews the past and current status of seaweed aquaculture in the United States and discusses potential opportunities and challenges of open-water seaweed aquaculture.

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Comparison of the cultivation performance between Korean (Sugwawon No. 301) and Chinese strains (Huangguan No. 1) of kelp Saccharina japonica in an aquaculture farm in Korea

Cited by 20 publications

References 14 publications

Parallelisable non-invasive biomass, fitness and growth measurement of macroalgae and other protists with nephelometry

Parallelisable non-invasive biomass, fitness and growth measurement of macroalgae and other protists with nephelometry

Seaweed cultivation and utilization of Korea

Opportunities, challenges and future directions of open-water seaweed aquaculture in the United States

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