The potential threat of algal blooms to the abalone (Haliotis midae) mariculture industry situated around the South African coast

Botes, Lizeth; Smit, Albertus J.; Cook, Peter

doi:10.1016/s1568-9883(03)00044-1

Cited by 82 publications

(48 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This confirms the data reported by Botes et al (2003) where A. salinas larvae were unaffected by exposure to a range of toxic dinoflagellates including K. brevis, K. mikimotoi and K. cristata (B10% mortality at 24 h for cell concentrations 1Á 10)10 6 cells L…”

Section: á1supporting

confidence: 90%

See 1 more Smart Citation

The toxic effects of three dinoflagellate species from the genusKareniaon invertebrate larvae and finfish

Shi

McNabb

Rhodes

et al. 2012

New Zealand Journal of Marine and Freshwater Research

View full text Add to dashboard Cite

Section: á1supporting

confidence: 90%

“…comm.). Botes et al (2003) have reported bioassay data (24 h) for Haloitis midae larvae where K. mikimotoi gave a LC 50 of 1.1 )10 6 cells L Á1 and K. brevis gave B10% mortality at the highest concentration tested (B 10)10 6 cells L Á1 ). These data for South African abalone larvae match our data for the New Zealand species.…”

Section: á1mentioning

confidence: 99%

The toxic effects of three dinoflagellate species from the genusKareniaon invertebrate larvae and finfish

Shi

McNabb

Rhodes

et al. 2012

New Zealand Journal of Marine and Freshwater Research

View full text Add to dashboard Cite

“…Other researchers have suggested that the excretion of mucous by algae provide advantages in terms of nutrient availability, competition with other phytoplankton species and reduction of grazing losses (Reynolds 2006). The presence of large quantities of mucilage may also contribute to observed negative impacts of A. sanguinea on other plankton, pelagic fauna and benthic organisms, as observed for other mucous producing algal species (Shumway 1990, Buskey & Hyatt 1995, Liu & Buskey 2000, Botes et al 2002.…”

Section: Discussionmentioning

confidence: 95%

“…In the Gulf of Mexico, blooms of A. sanguinea were the suspected cause of fish kills and marine mammal stranding in the mid-1990 s (Robichaux et al 1998, Steidinger et al 1998. Harmful effects of A. sanguinea on the behavior, physiology and survival of marine invertebrates have also been demonstrated in laboratory experiments (Fiedler 1982, Bricelj et al 1992, Botes et al 2002.…”

Section: Introductionmentioning

confidence: 90%

Akashiwo sanguinea (Dinophyceae) blooms in a sub-tropical estuary: An alga for all seasons

Badylak

Phlips

Mathews

2014

Plankton Benthos Res

View full text Add to dashboard Cite

Abstract:Akashiwo sanguinea is a cosmopolitan dinoflagellate that has been observed to form major blooms in coastal ecosystems around the world. A. sanguinea plays a major role in the ecology of many marine environments, including coastal ecosystems with variable salinities, where its euryhaline character makes it competitive. The study involved monthly water sampling and measurement of physical-chemical parameters at four sites from the upper reaches of the Caloosahatchee Estuary to San Carlos Bay bordering the Gulf of Mexico. Major A. sanguinea blooms were observed in the Caloosahatchee estuary, with biovolume up to 30.5 10 6 μm 3 mL 1 , equivalent to 740 cells mL 1 , in the upper estuary. The latter regions of the estuary also had the greatest range of salinity and the highest total nitrogen and total phosphorus concentrations. The dynamics of blooms are discussed within the context of spatial and temporal patterns of salinity, temperature and nutrient concentrations, as they relate to hydrologic and climatic conditions.

show abstract

“…First, both SHA and qPCR have been developed and validated for this species (Tyrrell et al 2001(Tyrrell et al , 2002Coyne et al 2005;Handy et al 2005Handy et al , 2006Demir et al 2008;Greenfield et al 2008;Portune et al 2009). Second, H. akashiwo is globally distributed and has been implicated in fish killing blooms in New Zealand (Chang et al 1990), Japan (Honjo 1992), South Africa (Bates et al 2003), South Carolina, USA (Kempton et al 2008) and Washington State, USA (Rensel et al 2010). These fish kills also have associated economic impacts.…”

Section: Comparison Of Sandwich Hybridization Assay and Quantitative mentioning

confidence: 99%

Comparison of sandwich hybridization assay and quantitative PCR for the quantification of live and preserved cultures of Heterosigma akashiwo (Raphidophyceae)

Doll

Main

Bianco

et al. 2014

Limnology & Ocean Methods

View full text Add to dashboard Cite

Harmful algal bloom (HAB) species include members of several phytoplankton taxa that cause a variety of negative effects on aquatic ecosystems, human health, and economies, such as trophic accumulation of toxins, shellfish poisoning, fishery and beach closures, and others (e.g., Smayda 1997; Scholin et al. 2000;Hoagland and Scatasta 2006). Light microscopy has been traditionally used to identify and enumerate HAB species, but this approach is time consuming and accurate species identification is difficult among morphologically similar taxa and when the organism of interest is rare within a complex microbial assemblage (Anderson 1995; Anderson et al. 2005). Consequently, there has been a recent surge in the development of methods that enable rapid and accurate detection and quantification of HAB species and the substances they produce to augment research and management activities that facilitate early warning of bloom events to close fisheries or alert health officials. Examples include antibody tests, (e.g., Campbell et al. 1989;Shapiro et al. 1989), optical detection (e.g., Kirkpatrick et al. 2000;Robbins et al. 2006), molecular approaches (e.g., Anderson 1995;Groben et al. 2004), and observatory platforms (e.g., Sosik et al. 2003;See et al. 2005;Olson and Sosik 2007;Paul et al. 2007;Roman et al. 2007; Scholin et al. 2009). Despite these numerous advances, comparisons between multiple approaches are surprisingly rare. Godhe et al. (2007) describes a novel workshop that entailed cross-comparisons of methods for quantifying the "red tide" dinoflagellate Alexandrium tamarense. While results elucidated the relative performance of several techniques, varying culture conditions and use of shared equipment prevented direct comparisons, highlighting the importance for a rigorous sideby-side methods comparison accomplished by splitting a single sample followed by analyses with multiple methods. Comparison AbstractIn this study, we directly compared two molecular techniques, sandwich hybridization assay (SHA) and quantitative PCR (qPCR), for quantifying laboratory cultures of the ichthyotoxic raphidophyte Heterosigma akashiwo. To maximize comparisons, all experiments entailed raising H. akashiwo in the laboratory, generating cellular homogenates then splitting them such that for each sample, the same homogenate was analyzed using both SHA and qPCR. To verify molecular data, all experiments included cell counts using light microscopy and a Sedgewick Rafter chamber. Results of standard curves for several geographically distinct strains using SHA were similar to prior research whereas others exhibited significantly different slopes, suggesting physiological differences between isolates. Data generated by qPCR showed a high degree of correlation with SHA responses. We also investigated the use of each method for quantifying H. akashiwo samples preserved with Lugol's iodine solution. Neither SHA nor qPCR produced results that were significantly different from initial values for Lugol's preserved samples stored under refri...

show abstract

The potential threat of algal blooms to the abalone (Haliotis midae) mariculture industry situated around the South African coast

Cited by 82 publications

References 16 publications

The toxic effects of three dinoflagellate species from the genusKareniaon invertebrate larvae and finfish

The toxic effects of three dinoflagellate species from the genusKareniaon invertebrate larvae and finfish

Akashiwo sanguinea (Dinophyceae) blooms in a sub-tropical estuary: An alga for all seasons

Comparison of sandwich hybridization assay and quantitative PCR for the quantification of live and preserved cultures of Heterosigma akashiwo (Raphidophyceae)

Contact Info

Product

Resources

About