Dinoflagellates

Steidinger, Karen A.; Tangen, Karl

doi:10.1016/b978-012693015-3/50006-1

Cited by 190 publications

(175 citation statements)

References 140 publications

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“…Many species of Scrippsiella occur sympatrically (Lewis, 1991;D'Onofrio et al, 1999;Montresor et al, 2003) but, contrastingly, species such as S. trochoidea are considered to be widely distributed (Steidinger & Tangen, 1996). It was Vink (2004) who first linked morphology, distribution, and ecology of calcareous cysts, and so expanded promisingly the characterization, circumscription, and delimitation of species of calcareous dinoflagellates.…”

Section: Scrippsiellamentioning

confidence: 99%

A molecular phylogeny ofScrippsiella sensu lato(Calciodinellaceae, Dinophyta) with interpretations on morphology and distribution

Gottschling

Knop

Plötner

et al. 2005

European Journal of Phycology

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The phylogenetic relationships of Scrippsiella sensu lato (including cyst taxa such as Calcigonellum, Calciodinellum, and Pernambugia) were investigated based on sequences from the ribosomal 5.8S rRNA and the Internal Transcribed Spacers ITS1 and ITS2, including interpretations on morphology and distribution. To attach importance to the cyst diversity present in calcareous dinoflagellates, a segregation of Scrippsiella sensu lato into four well-recognizable and monophyletic groups is proposed, corresponding to more-or less-established taxonomic units: (i) Calciodinellum (including Calcigonellum and a few species assigned to Scrippsiella), (ii) Pernambugia (presumptively including Lebessphaera), (iii) S. precaria and S. ramonii, and (iv) Scrippsiella sensu stricto comprising largely the S. trochoidea species complex. The phylogenetic relationships among these four groups are not sufficiently resolved. Molecular data suggest the existence of numerous cryptic taxa showing molecular, but not morphological, variation (especially in Scrippsiella sensu stricto). Closely related strains have a wide range of distribution and occur (at least partly) sympatrically in cold through to tropical seas of the world.

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Section: Scrippsiellamentioning

confidence: 99%

A molecular phylogeny ofScrippsiella sensu lato(Calciodinellaceae, Dinophyta) with interpretations on morphology and distribution

Gottschling

Knop

Plötner

et al. 2005

European Journal of Phycology

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“…Cyst germination was examined daily and those exhibiting unsuccessful incubation were discarded after 30 days. Germling cell identification was done according to Drebes (1974), Delgado and Fortuno (1991), Steidinger and Tangen (1996). Cultures of the potentially toxic species Alexandrium pseudogonyaulax and of the abundant species Scrippsiella rotunda were established from excysted cells.…”

Section: Germination Experiments and Culturingmentioning

confidence: 99%

Do the levels of industrial pollutants influence the distribution and abundance of dinoflagellate cysts in the recently-deposited sediment of a Mediterranean coastal ecosystem?

Triki

Laabir

Lafabrie

et al. 2017

Science of The Total Environment

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We studied the relationships between sediment industrial pollutants concentrations, sediment characteristics and the dinoflagellate cyst abundance within a coastal lagoon by investigating a total of 55 sampling stations within the Bizerte lagoon, a highly anthropized Mediterranean ecosystem. The sediment of Bizerte lagoon is characterized by a high dinocyst abundance, reaching a maximum value of 2742 cysts·g −1 of dry sediment. The investigated cyst diversity was characterized by the presence of 22 dominant dinocyst morphotypes belonging to 11 genera. Two dinoflagellate species dominated the assemblage: Alexandrium pseudogonyaulax and Protoperidinium claudicans, representing 29 to 89% and 5 to 38% of the total cyst abundance, respectively, depending on the station. Seven morphotypes belonging to potentially toxic species were detected, including Alexandrium minutum, A. pseudogonyaulax, Alexandrium catenella/tamarense species complex, Lingulodinium polyedrum, Gonyaulax cf. spinifera complex, Prorocentrum micans and Protoceratium reticulatum. Pearson correlation values showed a positive correlation (α = 0.05) between cyst abundance and both water content and fine silt sediment content. Clustering revealed that the highest abundance of cysts corresponds to stations presenting the higher amounts of heavy metals. The simultaneous autoregressive model (SAM) highlighted a significant Contents lists available at ScienceDirectScience of the Total Environment j o u r n a l h o m e p a g e : w w w . e l s e v i e r . c o m / l o c a t e / s c i t o t e n v correlation (α = 0.05) between cyst accumulation and two main factors: sediment water content and sediment content for several heavy metals, including Hg, Cd, Cu, Ni and Cr. These results suggest that the degree of heavy metal pollution could influence cyst accumulation patterns.

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“…All specimens but those from February and July were examined using an Olympus cwhk10x-t/18l microscope (400x). Planktonic species were identified according to Rampi and Bernhard (1978), Sournia (1986), Larsen and Moestrup (1989), Hasle and Syvertsen (1996), Steidinger and Tangen (1996), and Tomas (1997) while occurrence reported as presence (+) and absence as (-) in the Table 1.…”

Section: Methodsmentioning

confidence: 99%

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Lök¹,

Metin²,

Acarlı³

et al. 2010

Turk. J. Fish. Aquat. Sci.

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Considering the filtration capacity of mussels to qualitative particle selection, our study focused directly on ingested species by assessing mussel stomach content of various size classes (1-5 cm) over a year (August 97-June 98) rather than monitoring seawater samples. Different size of mussels (1, 2, 3, 4, 5 cm in length) was sampled monthly from the sides of fish cage floats in Urla-Izmir. Stomach contents were analyzed under microscope and different plankton species were grouped taxonomically. Bacillariophycea, Dinophyceae, Oxyphceae, Euglenophyceae as phytoplanktonic species were observed in the stomach contents of mussels as well as zooplanktonic species including Ciliata, Cladocera, Copepod, bivalve and gastropod larvae. Over the sampling period, according to the Bray-Curtis similarity test mussels' stomach for all sizes was of similar content except in August and October.

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Dinoflagellates

Cited by 190 publications

References 140 publications

A molecular phylogeny ofScrippsiella sensu lato(Calciodinellaceae, Dinophyta) with interpretations on morphology and distribution

A molecular phylogeny ofScrippsiella sensu lato(Calciodinellaceae, Dinophyta) with interpretations on morphology and distribution

Do the levels of industrial pollutants influence the distribution and abundance of dinoflagellate cysts in the recently-deposited sediment of a Mediterranean coastal ecosystem?

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