Dinoflagellate cysts from surface sediments of Syracuse Bay (Western Ionian Sea, Mediterranean)

Rubino, Fernando; Belmonte, Manuela; Caroppo, Carmela; Giacobbe, Maria Grazia

doi:10.1016/j.dsr2.2009.09.011

Cited by 39 publications

(28 citation statements)

References 14 publications

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“…A. pseudogonyaulax was the dominant morphotype, reaching a density of 1686 cysts·g − 1 DS, followed by Lingulodinium polyedrum and the Alexandrium catenella/tamarense complex with maximum values of 152 and 104 cysts·g −1 DS, respectively. Gonyaulax spinifera and Protoceratium reticulatum were the least represented toxic/noxious species in the current study, whereas they are, together with Lingulodinium polyedrum, common in other Mediterranean coastal sediments (Montresor et al, 1998;Giannakourou et al, 2005;Rubino et al, 2010;Satta et al, 2010) and are known to cause toxic blooms, mainly in the northern Adriatic Sea (Honsell et al, 1992).…”

Section: Dinocyst Abundance and Diversitymentioning

confidence: 51%

“…Under high levels of iron, cell Naple, Adriatic sea (Italy), Alfacs Bay (Spain) (Montresor, 1995;Bravo et al, 2006;Penna et al, 2010;Satta et al, 2013) Alexandrium minutum Halim * Paralytic shellfish toxins (Bravo et al, 2006) Harbour of Alexandria (Egypt), Catalonia, Arenys del mar (Spain); Ionian sea, Adriatic sea, Tyrrhenian sea, Olbia (Italy), Aegean Sea (Turkey) (Ismael and khadr, 2003;Anglès et al, 2010;Rubino et al, 2010;Penna et al, 2010;Aydin et al, 2011) Alexandrium catenella/tamarense (Whedon & Kofoid) Balech ** Paralytic shellfish toxins (Laabir et al, 2013) Aegean Sea (Turkey), Ionian Sea, Olbia, (Italy), Thau lagoon (France), Tarragona and Barcelona Harbours (Spain) (Bravo et al, 2006;Satta et al, 2010;Rubino et al, 2010;Aydin et al, 2011) Lingulodinium polyedrum (Stein) Dodge Lingulodinium sp ** Yessotoxin (Paz et al, 2004) Ionian Sea, Adriatic sea (Italy), Catalan sea, Arenys del mar, Alfacs and Fangar bays (Spain) Penna et al, 2010;Satta et al, 2010Satta et al, , 2013) Gonyaulax cf. spinifera complex (Claparéde et Lachmann) Diesing * Yessotoxin (Rhodes et al, 2006) Arenys del mar (Spain), Olbia (Italy) Protoceratium reticulatum (Claparède et Lachmann) Butschli * Yessotoxin (Paz et al, 2004) Adriatic sea (Italy), Alfacs and Fangar bays Satta et al, 2013) Protoperidinium claudicans (Paulsen) Balec ** Adriatic sea, Tyrrhenian sea, Olbia and Syracuse bay (Italy) Arenys harbour, Catalonia, Alfacs and Fangar bays (Spain) Garcés et al, 2010;Satta et al, 2013) Protoperidinium leonis * Non toxic Ionian sea ) Protoperidinium compressum (Abé) Balech * Non toxic Arenys harbour, Alfacs and Fangar bays (Spain), Adriatic sea, Olbia and Syracuse bay (Italy) Penna et al, 2010;Satta et al, 2010Satta et al, , 2013) Protoperidinium conicum (Gran) Balech ** Non toxic Aegean Sea (Turkey), Arenys harbour, Alfacs and Fangar bays (Spain), Olbia, Adriatic sea, Syracuse bay and Ionian sea (Italy) …”

Section: Correlation Between the Contaminants And Dinocyst Abundance mentioning

confidence: 99%

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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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Section: Dinocyst Abundance and Diversitymentioning

confidence: 51%

Section: Correlation Between the Contaminants And Dinocyst Abundance mentioning

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

View full text Add to dashboard Cite

show abstract

“…Two of these cyst types (Bicarinellum tricarinelloides and Calciperidinium asymmetricum) were successfully germinated, producing motile forms recognisable as belonging to the Calciodinellaceae family. In any case their frequent observation in surface sediments in other Mediterranean areas [23,34] and in sediment traps [35] is a clear sign that these species are present in the water column today and need to be better identified.…”

Section: Discussionmentioning

confidence: 99%

“…Cysts were incubated at 20 ∘ C, 12 : 12 h LD cycle, 100 E m −2 sec −1 irradiance, and examined on a daily basis, until germination up to a maximum of 30 days. The incubation conditions were chosen on the basis of previous studies [5,6,23]. They have proved to be effective for a large number of species.…”

Section: Germination Experimentsmentioning

confidence: 99%

Plankton Resting Stages in the Marine Sediments of the Bay of Vlorë (Albania)

Rubino

Moscatello

Belmonte

et al. 2013

International Journal of Ecology

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In the frame of the INTERREG III CISM project, sediment cores were collected at 2 stations in the Gulf of Vlorë to study the plankton resting stage assemblages. A total of 87 morphotypes were identified and produced by Dinophyta, Ciliophora, Rotifera, and Crustacea. In 22 cases, the cyst belonged to a species absent from the plankton of the same period. The most abundant resting stages were those produced by Scrippsiella species (Dinophyta). Some calcareous cysts were identified as fossil species associated with Pleistocene to Pliocene sediment, although they were also found in surface sediments and some of them successfully germinated, thus proving their modern status. Total abundance generally decreased with sediment depth at station 40, while station 45 showed distinct maxima at 3 and 8 cm below the sediment surface. The depth of peak abundance in the sediment varied with species. This paper presents the first study of the plankton resting stages in the Bay of Vlorë. The study confirmed the utility of this type of investigation for a more correct evaluation of species diversity. In addition, the varying distribution with sediment depth suggests that this field could be of some importance in determining the history of species assemblages.

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“…Many prior studies have reported the identification of resting cysts of C. polykrikoides or Cochlodinium sp. from sediments (6,(29)(30)(31)(32)(33)(34), but these studies have generally identified the cysts using previously published micrographs from Fukuyo (35) …”

mentioning

confidence: 99%

Mapping the Distribution of Cysts from the Toxic Dinoflagellate Cochlodinium polykrikoides in Bloom-Prone Estuaries by a Novel Fluorescence In Situ Hybridization Assay

Hattenrath-Lehmann

Zhen

Wallace

et al. 2016

Appl Environ Microbiol

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Cochlodinium polykrikoides is a cosmopolitan dinoflagellate that is notorious for causing fish-killing harmful algal blooms (HABs) across North America and Asia. While recent laboratory and ecosystem studies have definitively demonstrated that Cochlodinium forms resting cysts that may play a key role in the dynamics of its HABs, uncertainties regarding cyst morphology and detection have prohibited even a rudimentary understanding of the distribution of C. polykrikoides cysts in coastal ecosystems. Here, we report on the development of a fluorescence in situ hybridization (FISH) assay using oligonucleotide probes specific for the large subunit (LSU) ribosomal DNA (rDNA) of C. polykrikoides. The LSU rDNA-targeted FISH assay was used with epifluorescence microscopy and was iteratively refined to maximize the fluorescent reaction with C. polykrikoides and minimize cross-reactivity. The final LSU rDNA-targeted FISH assay was found to quantitatively recover cysts made by North American isolates of C. polykrikoides but not cysts formed by other common cyst-forming dinoflagellates. The method was then applied to identify and map C. polykrikoides cysts across bloom-prone estuaries. Annual cyst and vegetative cell surveys revealed that elevated densities of C. polykrikoides cysts (>100 cm ؊3 ) during the spring of a given year were spatially consistent with regions of dense blooms the prior summer. The identity of cysts in sediments was confirmed via independent amplification of C. polykrikoides rDNA. This study mapped C. polykrikoides cysts in a natural marine setting and indicates that the excystment of cysts formed by this harmful alga may play a key role in the development of HABs of this species. Resting cysts of dinoflagellates can be associated with genetic recombination, maintenance of blooms, termination of blooms, recurrence of annual blooms, resistance against unfavorable environmental conditions, protection from viruses, grazers, or parasite attacks, and geographical expansion of populations (1-10). Resting cysts, therefore, play an important role in the ecology of harmful algal blooms (HABs) caused by dinoflagellates (8, 11) and have been considered a fundamental attribute of dinoflagellate life cycles (12). About 200 marine and freshwater dinoflagellates are known to produce resting cysts, a small number relative to the ϳ2,300 extant dinoflagellate species (5, 11, 13). More than 20 of these cyst-producing dinoflagellates are known to cause harmful algal blooms (HABs) (5), including Cochlodinium polykrikoides Margalef (10).Cochlodinium polykrikoides Margalef is an unarmored dinoflagellate that has caused fish-killing HABs in locations across much of Asia and North America (14-17). The initiation and development of C. polykrikoides blooms have been shown to be related to multiple factors, including stimulation by nutrients such as nitrogen and vitamins (18, 19), mixotrophy (20), the production of extracellular toxins lethal to grazers (21-23), bacterial mutualism (24), and allelopathic effects on competing phy...

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Dinoflagellate cysts from surface sediments of Syracuse Bay (Western Ionian Sea, Mediterranean)

Cited by 39 publications

References 14 publications

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

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

Plankton Resting Stages in the Marine Sediments of the Bay of Vlorë (Albania)

Mapping the Distribution of Cysts from the Toxic Dinoflagellate Cochlodinium polykrikoides in Bloom-Prone Estuaries by a Novel Fluorescence In Situ Hybridization Assay

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