Harmful Algal Blooms and Their Assessment in Fjords and Coastal Embayments

Cembella, Allan; Ibarra, Diego; Diogène, Jorge; Dahl, Einar

doi:10.5670/oceanog.2005.51

Cited by 34 publications

(23 citation statements)

References 5 publications

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“…It has been widely recognized that accumulating data on the characteristics, causes, and consequences of HABs, contribute to the development of appropriate monitoring programs and preventative measures against the occurrence of such harmful events in coastal ecosystems (Cembella et al, 2005;Ranston et al, 2006;Riegman, 1991;Todd, 1993;Work et al, 1993). A prerequisite for this, is the detailed investigation of the spatial and temporal dynamics of the species involved across wide temporal scales, along with the corresponding physical and chemical information (ICES, 2005).…”

Section: Discussionmentioning

confidence: 98%

Dynamics of potentially harmful microalgae in a confined Mediterranean Gulf—Assessing the risk of bloom formation

et al. 2009

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Section: Discussionmentioning

confidence: 98%

Dynamics of potentially harmful microalgae in a confined Mediterranean Gulf—Assessing the risk of bloom formation

et al. 2009

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“…It has been commonly recognized that collection of data on the characteristics, causes and dynamics of HABs, especially toxic species, contributes to the development of appropriate monitoring programs and preventative measures against the occurrence of such harmful events in coastal ecosystems (Cembella et al 2005, Ranston et al 2006, Riegman 1991, Todd 1993, Work et al 1993. A prerequisite for this is the detailed investigation of the spatial and temporal dynamics of the species involved across the extensive temporal scales along with the corresponding environmental conditions (ICES 2005).…”

Section: Discussionmentioning

confidence: 99%

Composition and dynamics of potentially toxic dinoflagellates in a shallow Mediterranean lagoon

Armi

Trabelsi

Turki

et al. 2012

Oceanological and Hydrobiological Studies

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The population dynamics of harmful microalgae was investigated in the semi-enclosed shallow lagoon, Tunis northern lagoon (South Mediterranean), during a 1-year period from January to December 2007. A total number of 16 potentially toxic dinoflagellates were identified. Density of each species was analyzed in time and space and in relation to environmental parameters. Some species such as Alexandrium catenella, A. pseudogonyaulax, A. tamarense concavum were detected in this coastal ecosystem, but they were rare or appeared in very low densities.Densities of the most abundant species were closely associated with spring and summer conditions, being positively correlated with water temperature and salinity. These species performed well in this lagoon, but the specific species-dependent affinity to each of the environment factors determined which organisms proliferated. The spatial distribution of the abundant species exhibited a marked increase towards the western and southern parts of the lagoon represented by sites C, D and E. Examination of the temporal distribution revealed that the species more prone to bloom are those with extensive spatial distribution and frequent presence throughout the year such as D. sacculus.Statistical analysis of D. sacculus density dynamics showed a significant difference between summer and winter assemblages. It presented a positive correlation with water temperature and salinity, but it seems to be tolerant to all levels of nutrients.

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“…The fact that the model does not take into account the vertical distribution patterns of microalgae, determined by light intensity, nutrients availability, water temperature and salinity (Valiela, 1995), constitutes a limitation that should be resolved by model enhancement, in agreement with Cembella et al (2005).…”

Section: Discussionmentioning

confidence: 76%

“…Much of the global production of seafood and exploitation of fish and shellfish resources is situated within the coastal zone. The monitor and control of HABs is, therefore, of critical importance to coastal-zone management of marine resources and protection of public health (Cembella et al, 2005). In Portugal, the task of monitoring and controlling harmful algal blooms is performed by Instituto Nacional de Investigac ßão Agrária e das Pescas (INIAP/IPIMAR).…”

Section: Introductionmentioning

confidence: 99%

Tidal transport and dispersal of marine toxic microalgae in a shallow, temperate coastal lagoon

Cerejo¹,

Dias²

2007

Marine Environmental Research

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A numerical model was used to predict toxic microalgal transport and dispersion in Ria de Aveiro in Portugal. A previously developed Lagrangean particle tracking model coupled to a calibrated two-dimensional hydrodynamic model of Ria de Aveiro was used. Microalgae were regarded as passive particles and the methodology used allowed the determination of their trajectories, as induced by the tidal currents predicted by the hydrodynamic model. The model assumes Ria de Aveiro as vertically homogeneous and does not take into account the vertical distribution patterns of microalgae. Simulations were carried out during extreme spring and neap tides, with microalgal released at the mouth of the lagoon at the local flood. The maximum and minimum areas affected during the occurrence of toxic microalgal blooms were estimated to evaluate the suitability of the distribution of the sampling stations included in the local monitoring program. It was found that the tidal currents greatly determine the microalgal horizontal distribution and dispersal in the lagoon. The results confirmed that the locations of water and bivalve shellfish sampling stations, postulated by INIAP/IPIMAR, in the context of the local harmful algal bloom (HAB) program, were appropriate, although some possible refinements were identified.

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Harmful Algal Blooms and Their Assessment in Fjords and Coastal Embayments

Cited by 34 publications

References 5 publications

Dynamics of potentially harmful microalgae in a confined Mediterranean Gulf—Assessing the risk of bloom formation

Dynamics of potentially harmful microalgae in a confined Mediterranean Gulf—Assessing the risk of bloom formation

Composition and dynamics of potentially toxic dinoflagellates in a shallow Mediterranean lagoon

Tidal transport and dispersal of marine toxic microalgae in a shallow, temperate coastal lagoon

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