scholarly journals An Overview of Cyanobacteria Harmful Algal Bloom (CyanoHAB) Issues in Freshwater Ecosystems

2019 ◽  
Author(s):  
Naila-Yasmine Benayache ◽  
Tri Nguyen-Quang ◽  
Kateryna Hushchyna ◽  
Kayla McLellan ◽  
Fatima-Zohra Afri-Mehennaoui ◽  
...  
Keyword(s):  
Algal Bloom ◽  
Harmful Algal Bloom ◽  
Freshwater Ecosystems

scholarly journals Cyanopeptides Restriction and Degradation Co-mediate Microbiota Assembly During a Freshwater Cyanobacterial Harmful Algal Bloom (CyanoHAB)

2022 ◽  
Author(s):  
Han Gao ◽  
Ze Zhao ◽  
Lu Zhang ◽  
Feng Ju
Keyword(s):  
Community Assembly ◽  
Harmful Algal Blooms ◽  
Algal Blooms ◽  
Algal Bloom ◽  
Lake Taihu ◽  
Harmful Algal Bloom ◽  
Size Fraction ◽  
Freshwater Ecosystems ◽  
Cyanobacterial Harmful Algal Blooms ◽  
Microbiota Diversity

Cyanobacterial harmful algal blooms (CyanoHABs) are globally intensifying and exacerbated by climate change and eutrophication. However, microbiota assembly mechanisms underlying CyanoHABs remain scenario specific and elusive. Especially, cyanopeptides, as a group of bioactive secondary metabolites of cyanobacteria, could affect microbiota assembly and ecosystem function. Here, the trajectory of cyanopeptides were followed and linked to microbiota during Microcystis-dominated CyanoHABs in lake Taihu, China. The most abundant cyanopeptide classes detected included microginin, spumigin, microcystin, nodularin and cyanopeptolin with total MC-LR-equivalent concentrations between 0.23 and 2051.54 ppb, of which cyanotoxins beyond microcystins (e.g., cyanostatin B and nodularin_R etc.) far exceeded reported organismal IC50 and negatively correlated with microbiota diversity, exerting potential collective eco-toxicities stronger than microcystins alone. The microbial communities were differentiated by size fraction and sampling date throughout CyanoHABs, and surprisingly, their variances were better explained by cyanopeptides (19-38%) than nutrients (0-16%). Cyanopeptides restriction (e.g., inhibition) and degradation are first quantitatively verified as the deterministic drivers governing community assembly, with stochastic processes being mediated by interplay between cyanopeptide dynamics and lake microbiota. This study presents an emerging paradigm in which cyanopeptides restriction and degradation co-mediate lake water microbiota assembly, unveiling new insights about the ecotoxicological significance of CyanoHABs to freshwater ecosystems.

Global harmful algal bloom status reporting

Harmful Algae ◽  
2021 ◽  
pp. 101992
Author(s):  
Gustaaf Hallegraeff ◽  
Henrik Enevoldsen ◽  
Adriana Zingone
Keyword(s):  
Algal Bloom ◽  
Harmful Algal Bloom

scholarly journals Factors affecting harmful algal bloom occurrence in a river with regulated hydrology

2021 ◽  
Vol 33 ◽  
pp. 100769
Author(s):  
Jaeyoung Kim ◽  
John R. Jones ◽  
Dongil Seo
Keyword(s):  
Algal Bloom ◽  
Harmful Algal Bloom ◽  
Factors Affecting

Daytime intra-estuary movements and harmful algal bloom avoidance by Mugil cephalus (family mugilidae)

2021 ◽  
pp. 107492
Author(s):  
Eugin Bornman ◽  
Paul D. Cowley ◽  
Janine B. Adams ◽  
Nadine A. Strydom
Keyword(s):  
Algal Bloom ◽  
Harmful Algal Bloom ◽  
Mugil Cephalus

Taxocoenosis of epibenthic dinoflagellates in the coastal waters of the northern Yucatan Peninsula before and after the harmful algal bloom event in 2011–2012

2017 ◽  
Vol 119 (1) ◽  
pp. 396-406 ◽  
Author(s):  
Ana C. Aguilar-Trujillo ◽  
Yuri B. Okolodkov ◽  
Jorge A. Herrera-Silveira ◽  
Fany del C. Merino-Virgilio ◽  
Citlalli Galicia-García
Keyword(s):  
Coastal Waters ◽  
Algal Bloom ◽  
Harmful Algal Bloom ◽  
Yucatan Peninsula ◽  
Yucatán Peninsula ◽  
Before And After

Some observations on harmful algal bloom (HAB) events along the coast of Guangdong, southern China in 1998

Hydrobiologia ◽  
2004 ◽  
Vol 512 (1-3) ◽  
pp. 209-214 ◽  
Author(s):  
Yuzao Qi ◽  
Jufang Chen ◽  
Zhaohui Wang ◽  
Ning Xu ◽  
Yan Wang ◽  
...  
Keyword(s):  
Algal Bloom ◽  
Southern China ◽  
Harmful Algal Bloom
Sign in / Sign up

Export Citation Format

Share Document