scholarly journals First spatial distribution of potentially toxic benthic dinoflagellates in the Lesser Antilles (Guadeloupe and Martinique), Caribbean Sea

2019 ◽  
Vol 62 (4) ◽  
pp. 309-322 ◽  
Author(s):  
Aurélie Boisnoir ◽  
Pierre-Yves Pascal ◽  
Sophie Marro ◽  
Rodolphe Lémée
Keyword(s):  
Time Distribution ◽  
Caribbean Sea ◽  
Lesser Antilles ◽  
Substrate Preferences ◽  
Cell Counts ◽  
Ciguatera Fish Poisoning ◽  
Benthic Dinoflagellates ◽  
Fish Poisoning ◽  
Order Of Magnitude ◽  
First Time

Abstract For the first time, distribution and abundances (cells per gram of fresh macrophyte weight) of potentially toxic benthic dinoflagellates were studied around Guadeloupe (20 sites) and Martinique (six sites) islands (Lesser Antilles, Caribbean Sea). Benthic dinoflagellates were identified at the genus level and cell counts were undertaken on different host species of macroalgae and seagrasses. Abundance values of potentially toxic benthic dinoflagellates were one order of magnitude higher in Guadeloupe than in Martinique. The highest abundances of benthic dinoflagellates were found in the northern part of Guadeloupe Island, while their distribution was more homogeneous in Martinique. Ostreopsis was the dominant genus in Guadeloupe and Martinique. Regarding biotic substrate preferences, Phaeophyceae hosted the highest total abundances of benthic dinoflagellates on both islands, while the lowest total abundances were observed on Ulvophyceae in Guadeloupe and Florideophyceae in Martinique. The genus Gambierdiscus, known as the causal agent of the ciguatera fish poisoning (CFP), developed on all macrophyte groups on both islands without showing any preferences towards biotic substrates. The presence of this potentially harmful dinoflagellate genus in both islands could explain the existence of local cases of CFP in Guadeloupe and Martinique islands.

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

Harmful Algae ◽  
2019 ◽  
Vol 81 ◽  
pp. 18-29 ◽  
Author(s):  
Aurélie Boisnoir ◽  
Pierre-Yves Pascal ◽  
Sébastien Cordonnier ◽  
Rodolphe Lemée
Keyword(s):  
Temporal Dynamics ◽  
Caribbean Sea ◽  
Lesser Antilles ◽  
Substrate Preferences ◽  
Benthic Dinoflagellates ◽  
Spatio Temporal

Ciguatera fish poisoning and sea surface temperatures in the Caribbean Sea and the West Indies

Toxicon ◽  
2010 ◽  
Vol 56 (5) ◽  
pp. 698-710 ◽  
Author(s):  
Patricia A. Tester ◽  
Rebecca L. Feldman ◽  
Amy W. Nau ◽  
Steven R. Kibler ◽  
R. Wayne Litaker
Keyword(s):  
West Indies ◽  
Caribbean Sea ◽  
Sea Surface ◽  
Sea Surface Temperatures ◽  
The West ◽  
Ciguatera Fish Poisoning ◽  
Surface Temperatures ◽  
Fish Poisoning ◽  
The Caribbean

scholarly journals THE DISTRIBUTION OF TOXIC DINOFLAGELLATES ON SEA GRASS Enhalus acoroides AT PARI ISLAND, SERIBU ISLANDS

2012 ◽  
Vol 4 (2) ◽  
Author(s):  
Riani Widiarti ◽  
Fitrian Anggraini
Keyword(s):  
Reef Flat ◽  
Water Currents ◽  
Enhalus Acoroides ◽  
Ciguatera Fish Poisoning ◽  
Benthic Dinoflagellates ◽  
Fish Poisoning ◽  
Sea Grass ◽  
Toxic Dinoflagellates ◽  
Southern Side ◽  
Local Water

<p>Benthic dinoflagellates causing Ciguatera Fish Poisoning (CFP), could be found attached either on macroalgae or sea grasses. Research on density and distribution of benthic dinoflagellates on sea grass leaves was conducted in Pari Island waters, Seribu Islands, in April 2012. Research was carried out by collecting Enhalus acoroides leaves from each site, and put inside the plastic jars containing seawater. In order to separate the dinoflagellates species from the leaves, the plastic jars were shaken vigorously and the seawater filtered through a series of sieves (125μm and 20μm). The resulted residue was than observed using Sedgewick rafter cell under light microscope. Based on samples collected, eight benthic dinoflagellates were found, where five of them were potentially toxic. They were Prorocentrum concavum, P. lima, P. rhathymum, Ostreopsis lenticularis, and O. siamensis. The highest abundance was found in the reef flat on the southern side of the island (652 sel/cm2 seagrass leaf). Research showed that the density and distribution of toxic dinoflagellates on sea grass at Pari Island, Seribu Islands were more influenced by local water currents.</p><p>Keywords: benthic dinoflagellates, Ciguatera Fish Poisoning, Pari Island, seagrass</p>

scholarly journals THE DISTRIBUTION OF TOXIC DINOFLAGELLATES ON SEA GRASS Enhalus acoroides AT PARI ISLAND, SERIBU ISLANDS

2012 ◽  
Vol 4 (2) ◽  
Author(s):  
Riani Widiarti ◽  
Fitrian Anggraini
Keyword(s):  
Light Microscope ◽  
Reef Flat ◽  
Enhalus Acoroides ◽  
Ciguatera Fish Poisoning ◽  
Benthic Dinoflagellates ◽  
Fish Poisoning ◽  
Sea Grass ◽  
Toxic Dinoflagellates ◽  
Southern Side ◽  
Local Water

Benthic dinoflagellates causing Ciguatera Fish Poisoning (CFP), could be found attached either on macroalgae or sea grasses. Research on density and distribution of benthic dinoflagellates on sea grass leaves was conducted in Pari Island waters, Seribu Islands, in April 2012. Research was carried out by collecting Enhalus acoroides leaves from each site, and put inside the plastic jars containing seawater. In order to separate the dinoflagellates species from the leaves, the plastic jars were shaken vigorously and the seawater filtered through a series of sieves (125μm and 20μm). The resulted residue was than observed using Sedgewick rafter cell under light microscope. Based on samples collected, eight benthic dinoflagellates were found, where five of them were potentially toxic. They were Prorocentrum concavum, P. lima, P. rhathymum, Ostreopsis lenticularis, and O. siamensis. The highest abundance was found in the reef flat on the southern side of the island (652 sel/cm2 seagrass leaf). Research showed that the density and distribution of toxic dinoflagellates on sea grass at Pari Island, Seribu Islands were more influenced by local water currents.Keywords: benthic dinoflagellates, Ciguatera Fish Poisoning, Pari Island, seagrass

scholarly journals A descriptive study of ciguatera fish poisoning in Cook Islands dogs and cats: Demographic, temporal, and spatial distribution of cases

2020 ◽  
Vol 13 (1) ◽  
pp. 10-20 ◽  
Author(s):  
Michelle J. Gray
Keyword(s):  
Spatial Distribution ◽  
Medical Records ◽  
Temporal And Spatial Distribution ◽  
Veterinary Clinic ◽  
Cook Islands ◽  
Ciguatera Fish Poisoning ◽  
Outer Island ◽  
Fish Poisoning ◽  
Temporal And Spatial ◽  
First Time

Background and Aim: Ciguatera fish poisoning (CFP) is the most common form of seafood toxicosis reported in humans worldwide. Dogs and cats are also susceptible to CFP, but there is little published and much unknown about the condition in these species. This study aimed to document the demographics of canine and feline cases of CFP, to examine the temporal and spatial distribution of cases, and to compare the incidence of animal and human CFP in the Cook Islands. Materials and Methods: Six years of medical records from the Esther Honey Foundation Animal Clinic (the only veterinary clinic in the Cook Islands during the study period) were reviewed to identify cases of CFP. The study variables included the date of presentation, species, age, sex, neutering status, and village/locality. Results: A total of 246 cases of CFP were identified, comprising 165 dogs and 81 cats. The sexes were equally represented; however, within each sex, entire animals outnumbered those that had been desexed. Cases occurred year-round, with slightly higher numbers recorded in spring. Annual case numbers trended downward over the study period. Cases were documented in all regions of Rarotonga and also one outer island (Aitutaki). Fewer cases were seen in areas with a narrow (<200 m) fringing lagoon, compared with a wide (>400 m) lagoon. Conclusion: This study documented epidemiologic patterns of canine and feline CFP cases for the first time. Based on the results, further investigation is warranted to establish whether desexing has a protective effect against CFP.

scholarly journals Consumption of barracuda in the Caribbean Sea linked to ciguatera fish poisoning among Filipino seafarers

2018 ◽  
Vol 9 (4) ◽  
pp. 12-15 ◽  
Author(s):  
Niño Rebato ◽  
◽  
Vikki Carr de los Reyes ◽  
Ma. Nemia Sucaldito ◽  
Flor D’Lynn Gallardo ◽  
...  
Keyword(s):  
Caribbean Sea ◽  
Ciguatera Fish Poisoning ◽  
Fish Poisoning ◽  
The Caribbean

The prevalence of benthic dinoflagellates associated with ciguatera fish poisoning in the central Red Sea

Harmful Algae ◽  
2017 ◽  
Vol 68 ◽  
pp. 206-216 ◽  
Author(s):  
Daniela Catania ◽  
Mindy L. Richlen ◽  
Yim Ling Mak ◽  
Steve L. Morton ◽  
Elizabeth H. Laban ◽  
...  
Keyword(s):  
Red Sea ◽  
Ciguatera Fish Poisoning ◽  
Benthic Dinoflagellates ◽  
Fish Poisoning

scholarly journals THE POTENTIALLY TOXIC BENTHIC DINOFLAGELLATES ON MACROALGAE AT THE REEF FLAT OF SERIBU ISLANDS, NORTH JAKARTA - INDONESIA

2018 ◽  
Vol 33 (1) ◽  
pp. 91-94 ◽  
Author(s):  
Riani Widiarti ◽  
Murtiningsih ◽  
Suwarti ◽  
Ahmad Mutaqin ◽  
Gud Elina Kurnia
Keyword(s):  
Coral Reef ◽  
Environmental Factors ◽  
Human Activities ◽  
National Park ◽  
Reef Flat ◽  
Brown Macroalgae ◽  
Ciguatera Fish Poisoning ◽  
Benthic Dinoflagellates ◽  
Fish Poisoning ◽  
Gambierdiscus Toxicus

The Ciguatera Fish Poisoning (CFP) causing microorganisms were observed at the reef flat of Penjaliran Barat Islands and Pramuka Islands District, Seribu Island National Park, North Jakarta, Indonesia. Of the samples collected, four potentially toxic benthic dinoflagellates species were found, which are Gambierdiscus toxicus, Prorocentrum concavum, Prorocentrum lima, and Ostreopsis lenticularis. The dinoflagellates were found attached on the brown macroalgae Padina and Sargassum. Most of the benthic dinoflagellates from both locations were found in Pramuka Islands District, the inhabitated islands where human activities which could damage the coral reef areas were relatively high. Beside the macroalgae substrate preference of each dinoflagellate species, several environmental factors were also obtained in this research.

Acanthocnemidae (Coleoptera), a family of beetles new to Russia

2011 ◽  
Vol 20 (1) ◽  
pp. 71-73 ◽  
Author(s):  
Ya.N. Kovalenko
Keyword(s):  
Time Distribution ◽  
Published Data ◽  
First Time

Acanthocnemus nigricans (Hope, 1843), a single recent representative of the beetle family Acanthocnemidae, is reported from Russia for the first time. Distribution, probable ways of dispersion and the published data on the biology of A. nigricans are discussed.

Detection and Quantification of 7-Hydroxydehydroepiandrosterone Epimers in Three Body Fluids

2002 ◽  
Vol 67 (1) ◽  
pp. 10-18 ◽  
Author(s):  
Richard Hampl ◽  
Martin Hill ◽  
Luboslav Stárka
Keyword(s):  
Healthy Subjects ◽  
Serum Levels ◽  
Body Fluids ◽  
Gas Chromatography Mass Spectrometry ◽  
Specific Radioimmunoassay ◽  
Order Of Magnitude ◽  
Three Body ◽  
First Time ◽  
Nanomolar Range ◽  
Detection And Quantification

3β,7α-Dihydroxyandrost-5-en-17-one (1) (7α-OH-DHEA) and its 7β-hydroxy epimer 2 (7β-OH-DHEA) - 7α- and 7β-hydroxydehydroepiandrosterone - were detected and quantified in three human body fluids: in blood serum, saliva and ejaculate. Specific radioimmunoassay and gas chromatography-mass spectrometry have been used. For the first time the data on changes of these dehydroepiandrosterone metabolites are reported for a representative group of healthy subjects of both sexes (172 females and 217 males) during the life span. The serum levels of both 7-hydroxydehydroepiandrosterone epimers in serum and also in semen were in the low nanomolar range, while concentrations by one order of magnitude lower were found in saliva, but still within the detection limit. The results will serve as a basis for comparative studies of 7-hydroxydehydroepiandrosterone levels under various pathophysiological conditions, with a particular respect to autoimmune disorders.

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