Environmental Factors and Seasonal Occurrence of the DinoflagellateAlexandrium minutum, a PSP Potential Producer, in a Mediterranean Lagoon

Giacobbe, Maria Grazia; Oliva, Francesc; Maimone, Giovanna

doi:10.1006/ecss.1996.0035

Cited by 80 publications

(53 citation statements)

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“…Daly Yahia-Kéfi et al (2001) reported 10 species of Alexandrium in the Bay of Tunis. GIACOBBE et al (1996), in a Sicilian lagoon reported Alexandrium occurrence being associated with nitratelimited waters in concordance with our observations.…”

Section: Species Response To Nutrient Variabilitysupporting

confidence: 93%

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Spatio-temporal distribution of the dominant Diatom and Dinoflagellate species in the Bay of Tunis (SW Mediterranean Sea)

et al. 2005

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Microphytoplankton composition and its relationships with hydrology and nutrient distributions were investigated over 24 months (December 1993 -November 1995 in the Bay of Tunis (SW Mediterranean Sea). A new index, the 'Specific Preference Index' (SPI) obtained by computing the median value of each parameter weighed by the numerical value of each species density was developed. Using this index, the relationships between each species and temperature, salinity and major nutrients were analysed.The distribution of chlorophyll a did not show a clear correlation with microplankton abundance suggesting that other factors contribute to chlorophyll concentration, such as smaller phytoplankton size fractions or detritus. The winter-spring diatom blooms did not show a regular pattern during both years. High nutrient inputs in late summer, associated with mild meteorological conditions, contributed to the development of a large diatom bloom in autumn 1995 where significant silicate depletion was witnessed. Generally, diatoms were more stenotherm than dinoflagellates in the Bay, whereas dinoflagellates were more stenohaline than diatoms. The statistical analyses showed that the two species, Bellerochea horologicalis and Lithodesmioides polymorpha var. tunisiense, appeared in a wide range of environmental conditions. An excess of phosphate versus nitrate appeared to be associated with red tides of Gymnodinium spp, whereas Peridinium quinquecorne showed the opposite. Phosphate concentrations appear to be crucial in this coastal environment, where diatom blooms are often limited by low silicate availability.

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Section: Species Response To Nutrient Variabilitysupporting

confidence: 93%

“…However, our data and a previous report (GIACOBBE et al, 1996) demonstrated the dominance of ammonia in the Bay of Tunis. The assimilation of ammonium by phytoplankton requires a lower metabolic energy than nitrate (COLLOS et al, 1997).…”

Section: Species Response To Nutrient Variabilitycontrasting

confidence: 55%

Spatio-temporal distribution of the dominant Diatom and Dinoflagellate species in the Bay of Tunis (SW Mediterranean Sea)

et al. 2005

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“…전 세계적으로 Alexandrium의 출현과 이로 인한 PSP 검출 동태에 관한 연구에 의하면, 1970년대에는 미국, 유럽, 일본, 호주 등을 중심으로 한 출현보고가 우세하였으나 (Delgado et al, 1990;Giacobbe et al, 1996;Anderson, 1997;Wyatt and Jenkinson, 1997;Townsend et al, 2001) 2000년대 이후 아프리카, 아시아, 남미 등 전 세계로 확장되고 있는 추세이며 (Wang et al, 2006;Lilly et al, 2007;Bolch and Salas, 2007;Anderson, 2009;Anderson et al, 2012), 이러한 Alexandrium의 세계적 분포는 휴면포자(resting cyst)…”

Section: Goniodoma Ostenfeldii로 명명된 종을 대상으로 연구를 시작하여unclassified

Species Diversity of the Dinoflagellate Genus Alexandrium in the Coastal Waters of Korea during Summer 2013

Kim

Park²,

Youn³

et al. 2016

The Sea

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We investigated the occurrence of the dinoflagellate genus Alexandrium in the nineteen Korean coastal sites from July to October 2013. Alexandrium-like planktonic cells were microscopically observed only in four out of the 19 sampling sites. From the samples containing Alexandrium-like cells 22 clonal cultures of Alexandrium species were established by single cell or single chain isolation method. Taxonomic identity of the 4 different strains ascertained by the robust analyses of morphological and molecular genetic characteristics were confirmed to be A. catenella, A. affine, A. fraterculus and an unidentified Alexandrium sp. for which strain WEB-Alex-01 was assigned. It was ascertained that in spite of hot summer diverse Alexandrium species attaining up to four were distributed in the study area, in contrast with the long empirical recognition that the emergence of Alexandrium species is restricted to cooler seasons like spring or autumn in Korean coastal waters. Morphology and genetic characteristics of Alexandrium sp. strain WEB-Alex-01 are different from any other previously reported Alexandrium species from Korean seas, which implies that further studies on taxonomic, physiological, ecological and toxicological properties of the newly recorded Alexandrium species are needed.

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“…Cryptogenic in the Mediterranean, Spain, New Zealand, east coast of USA, south east Asia and parts of south-east Australia, introduced to Tas., parts of SA and southwestern WA (Chang and McClean 1997;Giacobbe et al 1996;NIMPIS 2002).…”

Section: Distribution Elsewherementioning

confidence: 99%

“…Thus this record remains to be confirmed genetically. Alexandrium tamarense is linked with paralytic shellfish poisoning (PSP) (Giacobbe et al 1996;Chang and McClean 1997).…”

Section: Remarksmentioning

confidence: 99%

Introduced marine biota in Western Australian waters

Huisman¹,

Jones²,

Wells³

et al. 2008

Rec West Aust Mus

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Environmental Factors and Seasonal Occurrence of the DinoflagellateAlexandrium minutum, a PSP Potential Producer, in a Mediterranean Lagoon

Cited by 80 publications

References 0 publications

Spatio-temporal distribution of the dominant Diatom and Dinoflagellate species in the Bay of Tunis (SW Mediterranean Sea)

Spatio-temporal distribution of the dominant Diatom and Dinoflagellate species in the Bay of Tunis (SW Mediterranean Sea)

Species Diversity of the Dinoflagellate Genus Alexandrium in the Coastal Waters of Korea during Summer 2013

Introduced marine biota in Western Australian waters

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