Growth and Maturation Period of Silvetia siliquosa in the Natural Population in Jindo, South Korea

Hwang, Eunkyoung; Yoo, Ho Chang; Ha, Dong Soo; Park, Chan Sun

doi:10.5657/kfas.2015.0745

Cited by 3 publications

(2 citation statements)

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“…No production was recorded after 2007 (Kim et al 2019). A brown seaweed Silvetia siliquosa grew in a wide geographical range in the mid to lower intertidal zones (Han et al 2016;Hwang et al 2015). However, the population of this species has declined from the mid-1990s onward (Lee et al 1997;Song et al 1996).…”

Section: Seaweed Flora Of Koreamentioning

confidence: 99%

Seaweed resources of Korea

2020

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AbstractKorea has a long history of utilizing seaweeds, as the country has a high biodiversity of seaweeds. The abundance and composition of seaweed species have changed over the past decades due to climate change and anthropogenic influences. Some species showed a significant extension of their distribution range to the north while some species declined. Some areas have even become barren ground. Korea has put extensive effort into restoring the seaweed resources in these deforested areas. Korea is one of the most advanced countries in the World in terms of seaweed aquaculture. However, the aquacultured species are mostly limited to three genera, Saccharina, Undaria and Pyropia/Porphyra, which represent 96% of the entire seaweed production in the country. Korea has developed highly advanced cultivation technologies as well as various cultivars using breeding and hybridization technologies for these species. There has also been considerable effort in developing environmentally sustainable aquaculture systems using seaweed cultivation (e. g. integrated multi-trophic aquaculture, nutrient bioextraction and biofloc). This study discusses the current status and challenges of the above mentioned topics in detail. In addition, the present study encourages South and North Korean scientists to collaborate in the study of seaweed resources at the border of these two countries.

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Section: Seaweed Flora Of Koreamentioning

confidence: 99%

Seaweed resources of Korea

2020

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“…However, the natural biomass and distribution range of S . siliquosa in East Asia have declined dramatically since the 1990s due to habitat fragmentation and anthropogenic influences [ 5 , 6 ]. S .…”

Section: Introductionmentioning

confidence: 99%

The organellar genomes of Silvetia siliquosa (Fucales, Phaeophyceae) and comparative analyses of the brown algae

et al. 2022

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The brown alga Silvetia siliquosa (Tseng et Chang) Serrão, Cho, Boo & Brawly is endemic to the Yellow-Bohai Sea and southwestern Korea. It is increasingly endangered due to habitat loss and excessive collection. Here, we sequenced the mitochondrial (mt) and chloroplast (cp) genomes of S. siliquosa. De novo assembly showed that the mt-genome was 36,036 bp in length, including 38 protein-coding genes (PCGs), 26 tRNAs, and 3 rRNAs, and the cp-genome was 124,991 bp in length, containing 139 PCGs, 28 tRNAs, and 6 rRNAs. Gene composition, gene number, and gene order of the mt-genome and cp-genome were very similar to those of other species in Fucales. Phylogenetic analysis revealed a close genetic relationship between S. siliquosa and F. vesiculosus, which diverged approximately 8 Mya (5.7–11.0 Mya), corresponding to the Late Miocene (5.3–11.6 Ma). The synonymous substitution rate of mitochondrial genes of phaeophycean species was 1.4 times higher than that of chloroplast genes, but the cp-genomes were more structurally variable than the mt-genomes, with numerous gene losses and rearrangements among the different orders in Phaeophyceae. This study reports the mt- and cp-genomes of the endangered S. siliquosa and improves our understanding of its phylogenetic position in Phaeophyceae and of organellar genomic evolution in brown algae.

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