Massive Outbreak of Aurelia coerulea in Geoje Bay, Korea DOI Open Access

Kyoung Yeon Kim,

Seok‐Hyun Youn, Seo Yeol Choi

et al.

Water, Journal Year: 2024, Volume and Issue: 16(19), P. 2846 - 2846

Published: Oct. 7, 2024

This study was carried out to elucidate the causes of massive outbreaks Aurelia coerulea in Geoje Bay, Korea, from November 2022 October 2023. Adult medusae consistently spawn with planulae, and populations A. Bay could be categorized into current-year overwintering populations. The population began emergence ephyrae February grew until October, while comprised a mixture surviving additional individuals that joined during warm season. size planulae are significantly larger than annual average cold These results appear energy accumulation for polyp formation under low water temperatures. Planulae form polyps within temperature range 5–25 °C, suggesting possibility year-round recruitment. In highest appearance rate April (8.71 ± 12.5 ind. m−3), experiencing higher growth rates up young medusa stage. However, April, decline zooplankton biomass resulted reduced adults, indicating jellyfish primarily regulated by food availability. Additionally, submersed oyster shells farms served as main habitat polyps. were also characterized continuous spawning throughout year. conclusion, this suggests stable habitats, abundant supply initial developmental period population, suitable ranges significant factors inducing outbreak Korea.

Language: Английский

Coastal aquaculture ponds represent a notable source of the blooming jellyfish Aurelia coerulea DOI Creative Commons
Lei Wang, Tingting Sun, Huichao Jiang

et al.

Frontiers in Ecology and Evolution, Journal Year: 2025, Volume and Issue: 13

Published: Feb. 7, 2025

The frequent occurrence of Aurelia coerulea medusae in coastal waters poses a serious threat to power plants and fisheries, emphasizing the importance early jellyfish bloom detection. Owing complex life cycle limitations traditional survey methods, identifying natural habitat stage jellyfish, especially polyps ephyrae, is challenging. In this study, we aimed identify habitats A. using environmental DNA (eDNA) metabarcoding technology predict sources blooms. We successfully detected temperate bay (Laizhou Bay, LZB) nearby aquaculture ponds (Dongying, DY) March, when were absent, revealing distributions stages bloom-causing jellyfish. relative abundance blooming DY was significantly higher than that LZB. Our results suggest ponds, as for are an important source medusa aggregates surrounding waters. These findings management strategies can be focused on allowing source-based prevention control blooms before they cause damage.

Language: Английский

Citations

1
eDNA tech tracks lethal jellyfish with CRISPR precision DOI Creative Commons
Maslin Osathanunkul

Ecological Informatics, Journal Year: 2025, Volume and Issue: unknown, P. 103008 - 103008

Published: Jan. 1, 2025

Language: Английский

Citations

0
Habitat and identification of scyphozoan polyps in Bages-Sigean lagoon (France) DOI Creative Commons
Jessica Schaub, Valentina Leoni,

Sandrine Crochemore

et al.

Marine Environmental Research, Journal Year: 2025, Volume and Issue: 205, P. 106991 - 106991

Published: Feb. 1, 2025

Language: Английский

Citations

0
Real‐Time PCR Assay and Environmental DNA Workflow for Detecting Irukandji Jellyfish, Malo bella (Cubozoa) DOI Creative Commons

Jessica K. Strickland,

Kylie A. Pitt, Michael J. Kingsford

et al.

Environmental DNA, Journal Year: 2025, Volume and Issue: 7(2)

Published: March 1, 2025

ABSTRACT The rise in coastal populations and marine activities has intensified challenges posed by hazardous Irukandji jellyfishes, whose stings can cause severe symptoms sometimes death. Despite their significant impact on health services marine‐related industries, jellyfishes remain poorly understood due to the of studying them limitations traditional sampling methods. Genetic methods environmental DNA (eDNA) offer promising solutions. This study developed validated a sensitive specific quantitative PCR assay detect monitor Malo bella , an jellyfish threatening tourism Western Australia. M. ‐specific primers TaqMan Minor Groove Binding (MGB) probe were designed. demonstrated high specificity, not amplifying non‐target species, sensitivity, with 95.6% efficiency, slope −3.43, R 2 value 0.98. assay's 95% limit detection (LoD) was 0.80 eDNA copies/reaction, modeled quantification (LoQ) 13 copies/reaction. Validation through silico vitro tests confirmed successful all water samples from aquaria around medusae ocean. Sanger sequencing verified amplification target sequence. improves ability addressing critical knowledge gaps species' ecology. These include assessing spatial temporal distributions this species potential early benthic life stages identify source populations. Such studies will improve management envenomation risks hotspots. Future research should explore integrating passive or automated samplers developing real‐time assays further enhance monitoring capabilities mitigate species.

Language: Английский

Citations

0
Hitchhikers and anglers: novel ectosymbioses and predatory interactions with carybdeid box jellyfishes (Cnidaria: Cubozoa: Carybdeida) confirmed by citizen science and digital morphological analyses DOI Creative Commons
Russel Christine B. Corcino, Sheldon Rey Boco, Phuping Sucharitakul

et al.

Symbiosis, Journal Year: 2025, Volume and Issue: unknown

Published: March 24, 2025

Language: Английский

Citations

0
Massive Outbreak of Aurelia coerulea in Geoje Bay, Korea DOI Open Access

Kyoung Yeon Kim,

Seok‐Hyun Youn, Seo Yeol Choi

et al.

Water, Journal Year: 2024, Volume and Issue: 16(19), P. 2846 - 2846

Published: Oct. 7, 2024

This study was carried out to elucidate the causes of massive outbreaks Aurelia coerulea in Geoje Bay, Korea, from November 2022 October 2023. Adult medusae consistently spawn with planulae, and populations A. Bay could be categorized into current-year overwintering populations. The population began emergence ephyrae February grew until October, while comprised a mixture surviving additional individuals that joined during warm season. size planulae are significantly larger than annual average cold These results appear energy accumulation for polyp formation under low water temperatures. Planulae form polyps within temperature range 5–25 °C, suggesting possibility year-round recruitment. In highest appearance rate April (8.71 ± 12.5 ind. m−3), experiencing higher growth rates up young medusa stage. However, April, decline zooplankton biomass resulted reduced adults, indicating jellyfish primarily regulated by food availability. Additionally, submersed oyster shells farms served as main habitat polyps. were also characterized continuous spawning throughout year. conclusion, this suggests stable habitats, abundant supply initial developmental period population, suitable ranges significant factors inducing outbreak Korea.

Language: Английский

Citations

0