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1. Spatiotemporal distribution characteristics of yessotoxins and pectenotoxins in phytoplankton and shellfish collected from the southern coast of South Korea

Author:
Mungi Kim; Seongjin Hong; Young Kyun Lim; Jihyun Cha; Jiyun Gwak; Youngnam Kim; Seong-Ah An; Hee-Seok Lee; Seung Ho Baek
Source:
Marine pollution bulletin 2022 v.180 pp. 113776
ISSN:
0025-326X
Subject:
Dinophysis acuminata; Gonyaulax; coasts; food safety; human health; lipophilicity; marine pollution; microalgae; phytoplankton; risk; scallops; seafoods; shellfish; summer; yessotoxin; South Korea
Abstract:
... The distribution characteristics of lipophilic marine biotoxins (LMTs), such as yessotoxins (YTXs) and pectenotoxins (PTXs) in phytoplankton, mussels, and commercial seafood were determined for the southern coast of South Korea. Gonyaulax spinifera and Dinophysis acuminata, which are the causative microalgae of YTXs and PTXs, were recorded during summer. Homo-YTX and PTX-2 were predominantly detec ...
DOI:
10.1016/j.marpolbul.2022.113776

2. Unraveling the Gonyaulax baltica Species Complex: Cyst–theca Relationship of Impagidinium variaseptum, Spiniferites pseudodelicatus sp. nov. and S. ristingensis (Gonyaulacaceae, Dinophyceae), With Descriptions of Gonyaulax bohaiensis sp. nov, G. amoyensis sp. nov. and G. portimonensis sp. nov.

Author:
Haifeng Gu; Kenneth Neil Mertens; Amélie Derrien; Gwenael Bilien; Zhen Li; Philipp Hess; Véronique Séchet; Bernd Krock; Ana Amorim; Zhun Li; Vera Pospelova; Kirsty F. Smith; Lincoln MacKenzie; Joo Yeon Yoon; Hyun Jung Kim; Hyeon Ho Shin
Source:
Journal of phycology 2022 v.58 no.3 pp. 465-486
ISSN:
0022-3646
Subject:
Gonyaulax; algology; genes; germination; liquid chromatography; new species; phylogeny; tandem mass spectrometry; yessotoxin; New Zealand; South Korea
Abstract:
... The taxonomy of the extant dinoflagellate genus Gonyaulax is challenging since its thecate morphology is rather conservative. In contrast, cysts of Gonyaulax are varied in morphology and have been related with the fossil‐based genera Spiniferites and Impagidinium. To better understand the systematics of Gonyaulax species, we performed germination experiments on cysts that can be identified as S. r ...
DOI:
10.1111/jpy.13245

3. Assessment of the Presence of Lipophilic Phycotoxins in Scallops (Argopecten purpuratus) Farmed along Peruvian Coastal Waters

Author:
Vanessa Leyva; Helena Maruenda
Source:
Journal of food protection 2021 v.84 no.2 pp. 204-212
ISSN:
0362-028X
Subject:
Argopecten purpuratus; Dinophysis acuminata; Gonyaulax; azaspiracid; coastal water; coasts; dinophysistoxins; food safety; hepatopancreas; lipophilicity; liquid chromatography; monitoring; okadaic acid; phytoplankton; poisonous algae; scallops; shellfish; tandem mass spectrometry; yessotoxin; Peru
Abstract:
... Some harmful algal blooms produce lipophilic marine biotoxins (LMTs) such as okadaic acid (OA; and its analogs dinophysistoxins [DTXs]), yessotoxins (YTXs), pectenotoxins (PTXs), and azaspiracids (AZAs), all of which may accumulate in filter-feeding bivalve mollusks. European health regulations stipulate a limit of 160 μg/kg for OA or DTXs, PTXs, and AZAs and 3.75 mg/kg for YTXs. Argopecten purpur ...
DOI:
10.4315/JFP-20-212

4. Cyst-theca relationships of Spiniferites bentorii, S. hyperacanthus, S. ramosus, S. scabratus and molecular phylogenetics of Spiniferites and Tectatodinium (Gonyaulacales, Dinophyceae)

Author:
Haifeng Gu; Kai Huo; Bernd Krock; Gwenael Bilien; Vera Pospelova; Zhen Li; Consuelo Carbonell-Moore; Lourdes Morquecho; Živana Ninčević; Kenneth Neil Mertens
Source:
Phycologia 2021 v.60 no.4 pp. 332-353
ISSN:
0031-8884
Subject:
Bayesian theory; Gonyaulax; fossils; genes; germination; monophyly; polyphyly; statistical analysis
Abstract:
... It is well known that modern resting cysts with morphologies matching those of species of the fossil genus Spiniferites germinate into motile cells of the genus Gonyaulax. Different Spiniferites species have been connected to a single Gonyaulax species, raising the question of whether they are over-classified. Through germination experiments of cysts with the morphological features of four species ...
DOI:
10.1080/00318884.2021.1930796

5. Development of harmful algal blooms species responsible for lipophilic and amnesic shellfish poisoning intoxications in southwestern Mediterranean coastal waters

Author:
Hicham Aboualaalaa; Mohammed L'Bachir El kbiach; Benlahcen Rijal Leblad; Fabienne Hervé; Amal Hormat-Allah; Lauriane Baudy; Ismail Ennaskhi; Ikram Hammi; Mustapha Ibghi; Hind Elmortaji; Eric Abadie; Jean Luc Rolland; Zouher Amzil; Mohamed Laabir
Source:
Toxicon 2022 v.219 pp. 106916
ISSN:
0041-0101
Subject:
Acanthocardia tuberculata; Dinophysis caudata; Gonyaulax; Karenia; Prorocentrum; Pseudo-nitzschia; clams; domoic acid; lipophilicity; meat; phytoplankton; poisonous algae; shellfish; surveys; toxicity; toxins; Mediterranean region; Morocco
Abstract:
... Mediterranean waters have undergone environmental changes during the last decades leading to various modifications of the structure of phytoplankton populations, especially Harmful Algal Blooms (HABs) species. Monitoring of the potentially toxic phytoplankton species was carried out biweekly in the western Mediterranean coast of Morocco from March 2018 to March 2019. Lipophilic Shellfish Toxins (L ...
DOI:
10.1016/j.toxicon.2022.09.002

6. Dinoflagellates cyst assemblage concerning trophic index for eutrophication from major ports along the west coast of India

Author:
R.V. Rodrigues; J.S. Patil; A.C. Anil
Source:
Marine pollution bulletin 2022 v.176 pp. 113423
ISSN:
0025-326X
Subject:
Gonyaulax; autotrophs; coasts; estuaries; eutrophication; heterotrophs; indicator species; marine pollution; new species; plankton; India
Abstract:
... An overview of dinoflagellates cysts assemblage is presented as a trophic index for three monsoon-influenced estuarine and marine ports along the Indian coast. The cyst distribution (including harmful species) showed a trend of highest abundance and species number in highly eutrophicated estuarine (Cochin-south) followed by medium (New-Mangalore-central) and low (Kandla-north) levels of eutrophica ...
DOI:
10.1016/j.marpolbul.2022.113423

7. Gonyaulacalean tabulation revisited using plate homology and plate overlap, with emphasis on the ventral area (Dinophyceae)

Author:
M. Consuelo Carbonell-Moore; Kazumi Matsuoka; Kenneth Neil Mertens
Source:
Phycologia 2022 v.61 no.2 pp. 195-210
ISSN:
2330-2968
Subject:
Alexandrium; Amphidoma; Azadinium; Ceratium; Gonyaulax; phylogeny
Abstract:
... We propose a standardization of the gonyaulacalean (Dinophyceae) Kofoidian plate tabulation using plate homology and overlap patterns, on the basis of a new morphological study of species belonging to 17 genera previously classified in the order Gonyaulacales: Acanthogonyaulax, Alexandrium, Amphidoma, Azadinium, Ceratium, Ceratocorys, Cladopyxis, Cribroperidinium, Fragilidium, Gonyaulax, Heterodin ...
DOI:
10.1080/00318884.2021.2024413

8. Harmful algal blooms of the Benguela eastern boundary upwelling system

Author:
Grant C. Pitcher; Deon C. Louw
Source:
Harmful algae 2021 v.102 pp. 101898
ISSN:
1568-9883
Subject:
Alexandrium catenella; Alexandrium minutum; Dinophysis acuminata; Dinophysis fortii; Gonyaulax; Karenia; Prorocentrum; abalone; algal blooms; anaerobic conditions; biomass; birds; coasts; diarrhetic shellfish poisoning; domoic acid; ecosystems; farms; human health; mortality; plankton; poisoning; poisonous algae; shellfish; yessotoxin
Abstract:
... The Benguela Upwelling System (BUS) is subject to a high incidence of HABs. Of the major shellfish poisoning syndromes associated with HABs, Paralytic and Diarrhetic Shellfish Poisoning (PSP and DSP) pose the greatest concern, but as documented herein there are several other HAB organisms that are also present. Blooms of Alexandrium catenella have been recognised as the typical cause of PSP since ...
DOI:
10.1016/j.hal.2020.101898

9. Recommendations for epitypification of dinophytes exemplified by Lingulodinium polyedra and molecular phylogenetics of the Gonyaulacales based on curated rRNA sequence data

Author:
Urban Tillmann; Alexis Bantle; Bernd Krock; Malte Elbrächter; Marc Gottschling
Source:
Harmful algae 2021 v.104 pp. 101956
ISSN:
1568-9883
Subject:
Alexandrium; DNA; Gonyaulax; databases; monophyly; nucleotide sequences; paraphyly; protists; type collections; Germany
Abstract:
... Gonyaulacales include a considerable number of harmful algae and to understand their origin and rise, knowledge of the evolutionary relationships is necessary. Many scientific names of protists introduced prior to the availability of DNA analytics are ambiguous and impede communication about biological species and their traits in the microbial world. Strains of Lingulodinium polyedra were establis ...
DOI:
10.1016/j.hal.2020.101956

10. The distribution of dinoflagellate cyst assemblages in recent sediments of the Oualidia Lagoon, Morocco, with a focus on toxic species

Author:
K Chaira; H Rhinane; B Ennaffah; S Maimouni; R Sagou; S Loulad; A BenMhamed; A Agouzouk; S BenBrahim; E Masseret; M Laabir
Source:
African journal of marine science 2021 v.43 no.3 pp. 279-292
ISSN:
1814-2338
Subject:
Alexandrium minutum; Alexandrium tamarense; Gonyaulax; Gymnodinium; coasts; human health; marine science; morphs; neurotoxicity; organic matter; poisonous algae; species diversity; water content; Morocco
Abstract:
... Harmful algal blooms (HABs) are becoming widely distributed and more frequent, threatening socioecosystems and human health. We determined species composition, abundance and spatial distribution of dinoflagellate cysts in the upper sediment of the Oualidia Lagoon located on the Atlantic coast of Morocco. Sediment samples were collected in 2017 at 51 stations, and environmental parameters were meas ...
DOI:
10.2989/1814232X.2021.1945684

11. Distribution of dinoflagellate cyst assemblages in recent sediments from a southern Mediterranean lagoon (Mellah, Algeria) with emphasis on toxic species

Author:
Mohamed Anis Draredja; Hocine Frihi; Chahinaise Boualleg; Eric Abadie; Mohamed Laabir
Source:
Environmental science and pollution research international 2020 v.27 no.20 pp. 25173-25185
ISSN:
0944-1344
Subject:
Alexandrium catenella; Alexandrium minutum; Gonyaulax; Gymnodinium; humans; morphs; neurotoxins; organic matter; poisoning; pollution; research; sediments; shellfish; toxicity; water content; yessotoxin; Algeria; Mediterranean Sea; Mediterranean region
Abstract:
... This is the first study on the dinoflagellate cysts in Algerian waters and in Mellah Lagoon (South Western Mediterranean), located within a protected reserve. In total, 42 species of dinocysts belonging to 7 orders, 12 families and 23 genera, were identified in the 26 superficial sediment samples from Mellah Lagoon. The distribution of dinocysts in the sediment of this lagoon is heterogeneous. Ind ...
DOI:
10.1007/s11356-020-08830-0

12. In situ measurements of bioluminescence response of Gonyaulax spinifera to various mechanical stimuli

Author:
C. R. Vishal; A. Parvathi; P. Anil; P. M. Mohammed Iqbal; K. R. Muraleedharan; S. Abdul Azeez; Camey M. Furtado
Source:
Aquatic ecology 2021 v.55 no.2 pp. 437-451
ISSN:
1386-2588
Subject:
Gonyaulax; aquaculture; bioluminescence; chlorophyll; ecology; estuaries; farms
Abstract:
... A conspicuous bioluminescence during nighttime was reported in an aquaculture farm in the Cochin estuary due to Gonyaulax spinifera bloom on March 20, 2020. In situ measurements on bioluminescence was carried out during nighttime to quantify the response of G. spinifera to various mechanical stimuli. The bioluminescence intensity (BI) was measured using Glowtracka, an advanced single channel senso ...
DOI:
10.1007/s10452-021-09836-7

13. Influence of Ocean–Lagoon exchanges on spatio-temporal variations of phytoplankton assemblage in an Atlantic Lagoon ecosystem (Oualidia, Morocco)

Author:
Laila Somoue; Herve Demarcq; Ahmed Makaoui; Karim Hilmi; Omar Ettahiri; Abdelouahed Ben Mhamed; Aziz Agouzouk; Tarik Baibai; Jamila Larissi; Said Charib; Abdelkrim Kalmouni; Mohamed Laabir
Source:
Regional studies in marine science 2020 v.40 pp. 101512
ISSN:
2352-4855
Subject:
Alexandrium; Chattonella; Dictyocha; Dinophysis; Gonyaulax; Gymnodinium; Karenia; Prorocentrum; ammonium; anthropogenic activities; autumn; biodiversity; chlorophyll; environmental factors; marine ecosystems; nitrates; nutrients; oyster culture; phytoplankton; poisonous algae; salinity; seasonal variation; seawater; spatial variation; summer; surveys; temperature; Atlantic Ocean; Morocco
Abstract:
... The Oualidia Lagoon is a semi enclosed marine ecosystem connected to the Atlantic Ocean of Morocco and exposed to human activities, mainly agriculture and oyster farming. The present study aims to characterize the spatio-temporal variation of the phytoplankton assemblage and to highlight the effect of the main environmental parameters on this important planktonic component evolving in a vulnerable ...
DOI:
10.1016/j.rsma.2020.101512

14. On Acanthogonyaulax spinifera (Dinophyceae)

Author:
Consuelo Carbonell-Moore; Kenneth Neil Mertens
Source:
Phycologia 2020 v.59 no.5 pp. 456-459
ISSN:
2330-2968
Subject:
Gonyaulax; materials; Indian Ocean; Pacific Ocean
Abstract:
... The genus Acanthogonyaulax (Kofoid) H.W.Graham is a rarely observed tropical gonyaulacoid dinoflagellate, first documented at the end of the 19th century. It was initially described as a species of Ceratocorys F.Stein, then transferred to Gonyaulax Diesing, and finally to its own genus, Acanthogonyaulax. Discrepancies in the observations of its plate pattern were responsible for these changes. In ...
DOI:
10.1080/00318884.2020.1807742

15. Responses of phytoplankton community structure and association to variability in environmental drivers in a tropical coastal lagoon

Author:
Lipika Tarafdar; Ji Yoon Kim; Suchismita Srichandan; Madhusmita Mohapatra; Pradipta R. Muduli; Abhishek Kumar; Deepak R. Mishra; Gurdeep Rastogi
Source:
Science of the total environment 2021 v.783 pp. 146873
ISSN:
0048-9697
Subject:
Alexandrium; Chlorophyta; Chrysophyceae; Cyanobacteria; Diploneis; Euglenozoa; Gonyaulax; Landsat; Prorocentrum; biomass; coastal water; community structure; data collection; habitats; pH; phytoplankton; salinity; water temperature; India
Abstract:
... Spatial and seasonal heterogeneity in phytoplankton communities are governed by many biotic and abiotic drivers. However, the identification of long-term spatial and temporal trends in abiotic drivers, and their interdependencies with the phytoplankton communities' structure is understudied in tropical brackish coastal lagoons. We examined phytoplankton communities' spatiotemporal dynamics from a ...
DOI:
10.1016/j.scitotenv.2021.146873

16. Spatial distribution and source of biotoxins in phytoplankton from the South China Sea, China

Author:
Chao Liu; Ying Ji; Lei Zhang; Jiangbing Qiu; Zhaohui Wang; Lei Liu; Yunyun Zhuang; Tianying Chen; Yang Li; Biaobiao Niu; Aifeng Li
Source:
Journal of hazardous materials 2021 v.418 pp. 126285
ISSN:
0304-3894
Subject:
Alexandrium; Gonyaulax; Pseudo-nitzschia; azaspiracid; coasts; domoic acid; environmental health; estuaries; imines; mariculture; microalgae; okadaic acid; phytoplankton; rivers; saxitoxins; yessotoxin; China; South China Sea
Abstract:
... Marine phycotoxins severely threaten ecosystem health and mariculture. This study investigates the spatial distribution and source of diverse phycotoxins in the South China Sea (SCS), during four 2019/2020 cruises. Saxitoxin (STX) and okadaic acid (OA) -groups, azaspiracids, cyclic imines, pectenotoxins (PTX), yessotoxins, and domoic acid (DA) toxins were analyzed in microalgal samples. PTX2 occur ...
DOI:
10.1016/j.jhazmat.2021.126285

17. The presence and abundance of harmful dinoflagellate algae related to water quality in Jakarta Bay, Indonesia

Author:
Annisa Khaira Nasution; Noverita Dian Takarina; Hikmah Thoha
Source:
Biodiversitas 2021 v.22 no.5 pp. -
ISSN:
2085-4722
Subject:
Ceratium; Dinophysis; Gonyaulax; Gymnodinium; Noctiluca; humans; marine environment; oxygen; pH; salinity; temperature; turbidity; water quality; Indonesia
Abstract:
... Takarina ND, Nasution AK, Thoha H. 2021. The presence and abundance of harmful dinoflagellate algae related to water quality in Jakarta Bay, Indonesia. Biodiversitas 22: 2909-2917. Dinoflagellate is a single-celled organism that commonly occurs in large numbers in marine environment. When environment changes, harmful dinoflagellate algae often emerge as a response to change in water quality. Jakar ...
DOI:
10.13057/biodiv/d220556

18. The relationship between toxic phytoplankton species occurrence and environmental and meteorological factors along the Eastern Adriatic coast

Author:
Živana Ninčević Gladan; Frano Matić; Jasna Arapov; Sanda Skejić; Mia Bužančić; Ana Bakrač; Maja Straka; Quentin Dekneudt; Branka Grbec; Roman Garber; Nikša Nazlić
Source:
Harmful algae 2020 v.92 pp. 101745
ISSN:
1568-9883
Subject:
Alexandrium; Dinophysis acuta; Dinophysis fortii; Gonyaulax; coasts; environmental factors; estuaries; freshwater; phytoplankton; poisonous algae; rain; river flow; salinity; spring; temperature; time series analysis; toxicity; wind; winter
Abstract:
... In this study, the time series of toxic phytoplankton species collected between 2004 and 2018 from the Northern Adriatic, Šibenik Bay, and Mali Ston Bay was analyzed in relation to environmental (temperature, salinity, water column stability, and river flow) and meteorological parameters (precipitation and wind). Because of the mostly non-linear relation between biotic and abiotic parameters, self ...
DOI:
10.1016/j.hal.2020.101745

19. Analytical screening of marine algal toxins for seafood safety assessment in a protected Mediterranean shallow water environment

Author:
Monica Mattarozzi; Antonella Cavazza; Anna Calfapietra; Monica Cangini; Silvia Pigozzi; Federica Bianchi; Maria Careri
Source:
Food additives & contaminants 2019 v.36 no.4 pp. 612-624
ISSN:
1944-0057
Subject:
Alexandrium; European Union; Gonyaulax; amnesic shellfish poisoning; aquaculture; breeding sites; clams; coasts; disease severity; ecosystems; farms; food safety; imines; lakes; lipophilicity; liquid chromatography; mass spectrometry; microalgae; monitoring; multiresidue analysis; mussels; natural toxicants; paralytic shellfish poisoning; phytoplankton; safety assessment; screening; seafoods; shellfish; toxicity; yessotoxin; Sicily
Abstract:
... Microalgal species growing in marine and aquaculture environments can be responsible for harmful events because of their ability to produce potent natural toxins that can accumulate in edible mollusc species. Their consumption can cause severe illness and even be lethal. The European Union provides comprehensive regulations covering various general food safety aspects to manage the risk of contami ...
DOI:
10.1080/19440049.2019.1581380

20. Biotic interaction as the triggering factor for blooms under favourable conditions in tropical estuarine systems

Author:
Samiksha Prabhudessai; C. R. Vishal; C. U. Rivonker
Source:
Environmental monitoring and assessment 2019 v.191 no.2 pp. 54
ISSN:
0167-6369
Subject:
Alexandrium minutum; Bacillariophyceae; Cochlodinium; Gonyaulax; Prorocentrum; algal blooms; allelopathy; biocenosis; coasts; ecological function; estuaries; marine environment; monsoon season; nitrates; phosphates; salinity; toxicity; India
Abstract:
... The formation of harmful algal blooms (HABs) in the marine environment is detrimental to the ecosystem function affecting the sequence of biological events. Hence, the present study is focused on the seasonal distribution of HAB-forming diatoms and dinoflagellates and their ecological interactions in two tropical estuaries, namely Chapora and Sal in the west coast of India. A total of 17 species o ...
DOI:
10.1007/s10661-018-7172-7