2000
DOI: 10.2989/025776100784125681
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Harmful algal blooms of the southern Benguela Current: a review and appraisal of monitoring from 1989 to 1997

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Cited by 122 publications
(101 citation statements)
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“…Interestingly, a similar productive upwelling system in South Africa (the Benguela Current) has experienced sardine (S. sagax) mortalities related to A. catenella, and the safety limit for Wsh harvesting used there is 80 g STXeq 100 g ¡1 of viscera (Pitcher and Calder 2000). In at least one mortality event in that region, sardine stomach contents contained between 60,000 and 80,000 A. catenella cells and toxin levels just exceeded the harvestable limit, leading the authors to conclude that these Wsh are highly sensitive to PSTs (Pitcher and Calder 2000). In this study, we detected PSTs over 80 g STXeq 100 g ¡1 only once in sardines (250 g STXeq 100 g ¡1 ).…”
Section: Discussionmentioning
confidence: 99%
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“…Interestingly, a similar productive upwelling system in South Africa (the Benguela Current) has experienced sardine (S. sagax) mortalities related to A. catenella, and the safety limit for Wsh harvesting used there is 80 g STXeq 100 g ¡1 of viscera (Pitcher and Calder 2000). In at least one mortality event in that region, sardine stomach contents contained between 60,000 and 80,000 A. catenella cells and toxin levels just exceeded the harvestable limit, leading the authors to conclude that these Wsh are highly sensitive to PSTs (Pitcher and Calder 2000). In this study, we detected PSTs over 80 g STXeq 100 g ¡1 only once in sardines (250 g STXeq 100 g ¡1 ).…”
Section: Discussionmentioning
confidence: 99%
“…These Wndings, along with the knowledge that PSTs have been detected in many of these animals in other regions, e.g. zooplankton (Turner et al 2000;Doucette et al 2005), crabs (Shumway 1995), planktivorous Wsh (White 1977(White , 1980Pitcher and Calder 2000) and whales (Geraci et al 1989), suggests that PSTs may also be present in California food webs to a further degree than we are currently aware of.…”
Section: Introductionmentioning
confidence: 99%
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“…390 µgC l -1 ) values; to avoid overlapping of circles, they represent 50% of their original size; as such, the absence of a bubble does not necessarily mean no occurrence, but that the relative abundance is low. ) of potentially HAB organisms (Hallegraeff, 1995;Pitcher and Calder, 2000;Smayda, 2000) from May to September (2001) Ceratium spp., Gonyaulax spp., and Scrippsiella spp., amongst other organisms (Pitcher and Calder, 2000;Smayda, 2000). These blooms, although nontoxic, are undesirable because they may cause fish and invertebrate killings due to oxygen depletion, following the decay of the blooms.…”
Section: Potentially Hab Organismsmentioning
confidence: 99%