Benthic cyanobacterial bloom impacts the reefs of South Florida (Broward County, USA)

Paul, Valerie J.; Thacker, Robert; Banks, Kenneth; Golubić, Stjepko

doi:10.1007/s00338-005-0061-x

Cited by 128 publications

(103 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In terms of the Cyanobacteria-like sequences that were detected, both Trichodesmium and Lyngbya spp. have been reported to occur in blooms in coastal environments, including in corals, during the warmest seasons (O'Neil and Dennison, 2005;Paul et al, 2005;Ramos et al, 2005;Hewson et al, 2007;O'Neil and Capone, 2008;Paerl and Huisman, 2008). The results reported here highlight the importance of certain diazotroph groups in corals and their proliferation under high-temperature stress conditions.…”

Section: Discussionsupporting

confidence: 59%

Climate change affects key nitrogen-fixing bacterial populations on coral reefs

Santos

Carmo

Duarte³

et al. 2014

The ISME Journal

124

111

View full text Add to dashboard Cite

Coral reefs are at serious risk due to events associated with global climate change. Elevated ocean temperatures have unpredictable consequences for the ocean's biogeochemical cycles. The nitrogen cycle is driven by complex microbial transformations, including nitrogen fixation. This study investigated the effects of increased seawater temperature on bacteria able to fix nitrogen (diazotrophs) that live in association with the mussid coral Mussismilia harttii. Consistent increases in diazotroph abundances and diversities were found at increased temperatures. Moreover, gradual shifts in the dominance of particular diazotroph populations occurred as temperature increased, indicating a potential future scenario of climate change. The temperature-sensitive diazotrophs may provide useful bioindicators of the effects of thermal stress on coral reef health, allowing the impact of thermal anomalies to be monitored. In addition, our findings support the development of research on different strategies to improve the fitness of corals during events of thermal stress, such as augmentation with specific diazotrophs.

show abstract

Section: Discussionsupporting

confidence: 59%

Climate change affects key nitrogen-fixing bacterial populations on coral reefs

Santos

Carmo

Duarte³

et al. 2014

The ISME Journal

124

111

View full text Add to dashboard Cite

show abstract

“…These finds call for renewed attention to the examination of the diversity of natural populations. There is today ample evidence that cyanobacteria respond to environmental stress by producing water blooms (Codd et al, 1999) in freshwater and marine settings and threaten coral reefs (Paul et al, 2005). Apart from being by themselves a potential environmental hazard, changes in cyanobacterial populations have an important value as indicators of environmental and climatic change.…”

Section: Discussionmentioning

confidence: 99%

Phylogenetic evaluation of cyanobacteria preserved as historic herbarium exsiccata

Palińska

Thomasius

Marquardt

et al. 2006

International Journal of Systematic and Evolutionary Microbiology

Self Cite

View full text Add to dashboard Cite

Dried herbarium specimens of cyanobacteria (exsiccata) deposited over 100 years ago were analysed and characterized using combined morphological and molecular approaches. Six representative coccoid and filamentous cyanobacteria from two historic collections and a 15-yearold air-dried environmental sample were studied. Morphological features observed by light and electron microscopy were correlated with the results of 16S rRNA gene sequencing. Historic identifications achieved by means of classical morphology could thus be confirmed by extracted, amplified and sequenced 16S rRNA gene fragments. The results of this study open the possibility of providing genotypic characterizations to botanical type specimens, thus reconciling the botanical and bacteriological approaches to the taxonomic treatment of these micro-organisms.

show abstract

“…However, their capacity for rapid growth and areal expansion in response to climatic and environmental stimuli (such as increased water temperature or nutrient inputs) can lead to the formation of extensive, monospecific blooms of cyanobacterial mats that dominate the benthic community (e.g. Stielow and Ballantine 2003;Albert et al 2005;Paul et al 2005). These blooms appear to be becoming more numerous, widespread and persistent in some tropical and subtropical marine embayments, estuaries and reef environments worldwide and have many negative impacts on the environment and on human health (Paerl and Fulton 2006).…”

Section: Introductionmentioning

confidence: 99%

“…Deleterious impacts of L. majuscula blooms include overgrowth and smothering of intertidal and subtidal benthic communities (Stielow and Ballantine 2003;Watkinson et al 2005), such as seagrass and coral communities in Florida, USA (Paul et al 2005). Additionally, benthic mats often become detached from the sea-floor and can drift onshore forming a stench-creating, hazardous residue on foreshores that requires costly removal by local authorities .…”

Section: Introductionmentioning

confidence: 99%

Mapping the distribution, biomass and tissue nutrient levels of a marine benthic cyanobacteria bloom (Lyngbya majuscula)

Ahern

Ahern²,

Savige³

et al. 2007

Mar. Freshwater Res.

View full text Add to dashboard Cite

Abstract. Benthic cyanobacteria blooms, including those of the nitrogen-fixing species Lyngbya majuscula, appear to be becoming more numerous and widespread in marine habitats worldwide, and have negative impacts on the environment and human health. The progression of a L. majuscula bloom in south-east Queensland, Australia was mapped along with intensive biomass and tissue nutrient sampling every 10-14 days over the bloom's 3.5-month duration in summer [2005][2006]. Data-integrated GIS maps illustrated the changes in biomass and tissue nutrient pool of the L. majuscula through different growth phases (incipient, rapid expansion, plateau or peak and decline) of the bloom. At the peak, L. majuscula covered 509 ha and had a mean density of 115 g dw m −2 , with the maximum density recorded 503 g dw m −2 . The highest mean total carbon (29.4% C), nitrogen (3.5% N) and phosphorus (0.143% P) contents in L. majuscula tissue corresponded with the peak in biomass. Three-dimensional modelling calculated that at the peak, the bloom contained 5057 t ww (510 t dw ) of L. majuscula; 150 000 kg C; 18 000 kg N; 720 kg P; and 5200 kg Fe. This information gives an insight into L. majuscula bloom dynamics and ecophysiology and provides quantitative data for models.

show abstract

Benthic cyanobacterial bloom impacts the reefs of South Florida (Broward County, USA)

Cited by 128 publications

References 21 publications

Climate change affects key nitrogen-fixing bacterial populations on coral reefs

Climate change affects key nitrogen-fixing bacterial populations on coral reefs

Phylogenetic evaluation of cyanobacteria preserved as historic herbarium exsiccata

Mapping the distribution, biomass and tissue nutrient levels of a marine benthic cyanobacteria bloom (Lyngbya majuscula)

Contact Info

Product

Resources

About