Spatio-temporal dynamics and biotic substrate preferences of benthic dinoflagellates in the Lesser Antilles, Caribbean sea

Boisnoir, Aurélie; Pascal, Pierre-Yves; Cordonnier, Sébastien; Lemée, Rodolphe

doi:10.1016/j.hal.2018.11.012

Cited by 30 publications

(29 citation statements)

References 82 publications

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“…(referred to as C. monotis) was reported among the dominant putatively non-toxic benthic species. Much later, G. caribaeus and G. belizeanus were collected and brought into culture from St. Tomas, United States Virgin Islands and Saint-Barthélemy Island (Litaker et al, 2009;Rains and Parsons, 2015;Boisnoir et al, 2019). Recently, based on morphometric and phylogenic analyses, two new toxic species, Coolia palmyrensis and C. santacroce were described from the northern coast of the Dominican Republic, and the United States Virgin Islands (Saint Croix), respectively .…”

Section: Subtropical and Tropical Atlantic Ocean And The Caribbean Seamentioning

confidence: 99%

A Review on the Biodiversity and Biogeography of Toxigenic Benthic Marine Dinoflagellates of the Coasts of Latin America

2019

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Many benthic dinoflagellates are known or suspected producers of lipophilic polyether phycotoxins, particularly in tropical and subtropical coastal zones. These toxins are responsible for diverse intoxication events of marine fauna and human consumers of seafood, but most notably in humans, they cause toxin syndromes known as diarrhetic shellfish poisoning (DSP) and ciguatera fish poisoning (CFP). This has led to enhanced, but still insufficient, efforts to describe benthic dinoflagellate taxa using morphological and molecular approaches. For example, recently published information on epibenthic dinoflagellates from Mexican coastal waters includes about 45 species from 15 genera, but many have only been tentatively identified to the species level, with fewer still confirmed by molecular criteria. This review on the biodiversity and biogeography of known or putatively toxigenic benthic species in Latin America, restricts the geographical scope to the neritic zones of the North and South American continents, including adjacent islands and coral reefs. The focus is on species from subtropical and tropical waters, primarily within the genera Prorocentrum, Gambierdiscus/Fukuyoa, Coolia, Ostreopsis and Amphidinium. The state of knowledge on reported taxa in these waters is inadequate and time-series data are generally lacking for the prediction of regime shift and global change effects. Details of their respective toxigenicity and toxin composition have only recently been explored in a few locations. Nevertheless, by describing the specific ecosystem habitats for toxigenic benthic dinoflagellates, and by comparing those among the three key regions-the Gulf of Mexico, Caribbean Sea and the subtropical and tropical Pacific coast, insights for further risk assessment of the global spreading of toxic benthic species is generated for the management of their effects in Latin America.

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Section: Subtropical and Tropical Atlantic Ocean And The Caribbean Seamentioning

confidence: 99%

A Review on the Biodiversity and Biogeography of Toxigenic Benthic Marine Dinoflagellates of the Coasts of Latin America

2019

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“…However, the impact of temperature alone during the summer period, which was represented here by July, seems less evident may be due to strong interactions with other unmeasured physical parameters as light intensity and photoperiod wave activity and some biotic factors that could also be involved such as the availability of some seasonal macroalgal substrates and the competition with other microphytes [20,26]. Also allelopathy has been often suggested among the biotic factors crucial to Ostreopsis [27]. A concise summary of the effects of surface seawater temperature, salinity and nutrient concentrations on Ostreopsis sp.…”

Section: Discussionmentioning

confidence: 94%

Ecology of the Epiphytic Potentially Harmful Dinoflagellate Ostreopsis cf. ovata (Fukuyo) from Coastal Waters off Alexandria Egypt

Hosny¹,

Labib²

2019

J Oceanogr Mar Res

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Despite macroalgae epiphytes play an important role in algal habitats, available information from Alexandria coastal waters is scarce. To evaluate the role of environmental factors on the inventory of the ephyphytic Ostreopsis c.f ovata cells, its abundance on the thalli of 14 different macroalgae collected from two sites at Abou Qir rocky area was done on the basis of sampling carried out for one year. The annual maximum Ostreopsis cf. ovata cell abundance was observed in May (late-spring), reaching the maximum on the green macroalgae Ulva linza in July (mid-summer). Analysis of variance showed significant difference of abundance between seasons and hosts. Water temperature and NO 2 , NO 3 and PO 4 seem the major factor affecting on abundance of Ostreopsis c.f ovata. The present study documented the significant importance of Ulva sp. as the suitable host of O. ovata in Alexandria waters, in contrasting with others in the Mediterranean Sea that show O. ovata most often found on Phaeophyta and Rhodophyta.

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“…ovata and O. lenticularis in the GMR and confirms the presence of potentially toxic benthic dinoflagellate species. Since the early 20th century, species of the genera Gambierdiscus, Ostreopsis, Prorocentrum, Coolia and Amphidinium have been reported in tropical and subtropical regions such as the eastern (Vargas-Montero et al 2012, Maciel-Baltazar 2015 and western Pacific Ocean (Rhodes et al 2017), the Indian Ocean (Car- nicer et al 2015), the west Atlantic Ocean (Mendes et al 2017) and the Caribbean Sea (Irola-Sansores et al 2018, Boisnoir et al 2019. A recent study highlights the potential ecological and sanitary risks to Mexican coasts associated with the presence of Gambierdiscus, Ostreopsis and Prorocentrum, with special attention to the importance of an accurate genetic and toxic identification of these species of these genera (Núñez-Vázquez et al 2019).…”

Section: Discussionmentioning

confidence: 99%

Ostreopsis cf. ovata and Ostreopsis lenticularis (Dinophyceae: Gonyaulacales) in the Galapagos Marine Reserve

et al. 2020

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The genus of benthic dinoflagellates Ostreopsis is of particular interest because some species negatively impact human health and coastal marine ecosystems. Ostreopsis populations from a remote area, such as the Galapagos Marine Reserve with its unique biodiversity, can provide significant data. Samples of epibionthic dinoflagellates were collected from two islands (Santa Cruz and Santa Fé) in 2017. Species of the genera Gambierdiscus, Amphidinium, Coolia and Ostreopsis were found. Ostreopsis strains were isolated to characterize their morphology, molecular biology and toxicity. Three different morphotypes of Ostreopsis based on dorsoventral and width diameters (n=369) were distinguished. The small cell morphotype was dominant in ten samples, with abundances of up to 33405 cells g-1 fresh weight of macroalgae. A total of 16 strains were isolated from field samples with subsequent polymerase chain reaction amplifications of rDNA, 5.8S rDNA and internal transcribed space regions; 13 strains (small cell morphotype) clustered in the O. cf. ovata Atlantic/Indian/Pacific clade; and 3 strains (large cell morphotype) clustered in the Ostreopsis lenticularis genotype from the type locality. The strains proved to be non-toxic. The presence of these genera/species represents a potential threat to marine ecosystems, and it is thus important to consider benthic species in the surveillance of harmful algae blooms in the reserve.

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Spatio-temporal dynamics and biotic substrate preferences of benthic dinoflagellates in the Lesser Antilles, Caribbean sea

Cited by 30 publications

References 82 publications

A Review on the Biodiversity and Biogeography of Toxigenic Benthic Marine Dinoflagellates of the Coasts of Latin America

A Review on the Biodiversity and Biogeography of Toxigenic Benthic Marine Dinoflagellates of the Coasts of Latin America

Ecology of the Epiphytic Potentially Harmful Dinoflagellate Ostreopsis cf. ovata (Fukuyo) from Coastal Waters off Alexandria Egypt

<em>Ostreopsis</em> cf. <em>ovata</em> and <em>Ostreopsis lenticularis</em> (Dinophyceae: Gonyaulacales) in the Galapagos Marine Reserve

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