OOIR: Observatory of International Research

Papers

(The TQCC of Harmful Algae is 10. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2022-08-01 to 2026-08-01.)

Article	Citations
Editorial Board	95
Optimal growth conditions of the haptophyte Chrysochromulina leadbeateri causing massive fish mortality in Northern Norway	92
Intraspecific genetic diversity with unrestricted gene flow in the domoic acid-producing diatom Nitzschia navis-varingica (Bacillariophyceae) from the Western Pacific	67
Geographic and seasonal comparison of LSU rDNA copy numbers in Alexandrium catenella life cycle stages	60
The queen scallop Aequipecten opercularis: A slow domoic acid depurator?	56
Editorial Board	56
A modeling investigation into the ecological role of mixotrophy in Karenia brevis blooms on the West Florida Shelf	50
Annual variation in domoic acid in phytoplankton and shellfish samples from Daya Bay of the South China Sea	44
Sub-tropical benthic/epiphytic dinoflagellates of Aotearoa New Zealand and Rangitāhua Kermadec Islands	43
Gambierdiscus species diversity and community structure in St. Thomas, USVI and the Florida Keys, USA	39
Salinity adaption and toxicity of harmful algal blooms in three bays of Great Salt Lake (USA)	38
Novel insights into toxin changes associated with the growth of Alexandrium pacificum: Revealing active toxin-secretion ability and toxin cell quota variation	37
Effects of nutrient depletion duration on growth, photosynthesis and toxins (OA and DTX) in the dinoflagellate Prorocentrum lima	32
Tracking marine phycotoxins: spatial distribution and source elucidation of domoic acid and lipophilic shellfish toxins in the Beibu Gulf, South China Sea	31
Editorial Board	31
The Occurrence of Karenia species in mid-Atlantic coastal waters: Data from the Delmarva Peninsula, USA	31
Perturbations in a pelagic food web during the NE pacific large marine heatwave and persistent harmful diatom blooms	30
Identification and algicidal mechanism of extracellular polysaccharides from Sulfitobacter pseudonitzschiae H46: A novel biocontrol agent for Chattonella marina bloom	27
A non-microcystin-producing Microcystis wesenbergii strain alters fish food intake by disturbing neuro-endocrine appetite regulation	27
Allelochemicals determine competition and grazing control in Alexandrium catenella	26
Domoic acid in Canadian Pacific waters, from 2016 to 2021, and relationships with physical and chemical conditions	26
Editorial Board	25
Clearance rates and toxin accumulation by North Atlantic bivalves during harmful algal blooms caused by the dinoflagellate, Dinophysis acuminata, in NY, USA, estuaries	25
On the conditions promoting Pseudo-nitzschia spp. blooms in the eastern English Channel and southern North Sea	24
Morphological and physiological adaptations of Dolichospermum flos-aquae to turbulence	24

Differential responses and adaptive mechanisms of diatoms and dinoflagellates to changes in dissolved organic nitrogen components	23
Marine phycotoxin levels in shellfish—14 years of data gathered along the Italian coast	23
Cyanobacterial bloom monitoring and assessment in Latin America	23
Effects of nitrate on the saxitoxins biosynthesis revealed by sxt genes in the toxic dinoflagellate Alexandrium pacificum (group IV)	23
Genomic characterization of coexisting anatoxin-producing and non-toxigenic Microcoleus subspecies in benthic mats from the Wolastoq, New Brunswick, Canada	23
Benthic harmful microalgae and their impacts in South America	23
Multi-year dynamics of harmful algae in Disko Bay, West Greenland	22
Editorial Board	22
Phytoplankton community and HAB species in the South China Sea detected by morphological and metabarcoding approaches	22
Upwelling-driven vertical segregation of co-occurring phytoplankton, including HAB species, revealed by niche analyses	21
Accumulation and depuration of 4,5-dihydro-KmTx2 from Karlodinium veneficum in the bivalves, Mercenaria mercenaria and Sinonovacula constricta	21
Evaluation of a field method for qPCR analysis of toxigenic cyanobacteria	21
Transcriptomic comparison unveils saxitoxin biosynthesis genes in the marine dinoflagellate Gymnodinium catenatum	20
A novel strategy of bloom forming cyanobacteria Microcystis sp. in response to phosphorus deficiency: Using non-phosphorus lipids substitute phospholipids	20
Photoacclimation and photophysiology of four species of toxigenic Dinophysis	20
Morpho-phylogenetic and toxicological characterisation of Pseudo-nitzschia multiseries from the Sea of Marmara (Türkiye)	20
More sustained, more severe blooms and shifting monthly patterns of the toxigenic dinoflagellate Karenia brevis on the West Florida Shelf	19
Characterizing carotenoids in cyanobacterial cultures – Opportunities and implications for paleolimnological studies	19
From bloom to tap: Connecting harmful algal bloom indicators in source water to cyanotoxin presence in treated drinking water	19
From human-driven eutrophication to effective management: Controlling brown tides in the coastal waters of Qinhuangdao, China	19
Assessment of hydrogen sulfide exposure in shoreline cleanup workers during the 2025 Atlantic Sargassum bloom	19
Temporal bloom dynamics of the marine dinoflagellate Tripos furca in the Penang Strait	19
Silencing of apoptotic gene caspase-2 enhances the susceptibility of a keystone aquatic grazer to cyanobacterial stress	19
Constructed wetland mesocosms improve the biodegradation of microcystin-LR and cylindrospermopsin by indigenous bacterial consortia	18
Discovery of a series of portimine-A fatty acid esters in mussels	18
Editorial Board	18
Corrigendum to ’changing Pseudo-nitzschia and Dinophysis distributions in the North Sea and Western approaches (NE Atlantic) and their potential use in biodiversity assessments’ [harmful algae 156 (20	17
Comparative genomic and phylogenetic analysis of mitochondrial genomes of the Pseudo-nitzschia HAB species	17
Compounds to mitigate cyanobacterial blooms affect growth and toxicity of Microcystis aeruginosa	17
Editorial Board	17
Description of two new species Chattonella tenuiplastida sp. nov. and Chattonella malayana sp. nov. (Raphidophyceae) from South China Sea, with a report of wild fish mortality	17
Editorial Board	17
Utilization of two types of dissolved organic phosphate by axenic and nonaxenic harmful Amphidinium carterae: Response of photosynthetic and hemolytic activity	16
Colonial morphology weakens the response of different inorganic carbon uptake systems to CO2 levels in Microcystis population	16
Spatial and biological oceanographic insights into the massive fish-killing bloom of the haptophyte Chrysochromulina leadbeateri in northern Norway	16
Dynamics of harmful algal bloom species are independent of the extent of the Changjiang Diluted Water Intrusion Off Western Jeju Island in the Northern East China Sea	16
Molecular investigation of harmful cyanobacteria reveals hidden risks and niche partitioning in Kenyan Lakes	16
Environmental-level antibiotics disrupt Microcystis stoichiometry: An overlooked risk in the context of cyanobacterial harmful algal blooms	16
Nutrient limitation and seasonality associated with phytoplankton communities and cyanotoxin production in a large, hypereutrophic lake	16
Zooplankton feeding behaviour and survival to toxic and non-toxic cyanobacteria during the seasonal bloom progression of a eutrophic lake	16
Insights into the differential removal of various red tide organisms using modified clay: Influence of biocellular properties and mechanical interactions	16
Monitoring cyanobacteria blooms with complementary measurements – a similar story told using high-throughput imaging, optical sensors, light microscopy, and satellite-based methods	16
Socioeconomic disruptions of harmful algal blooms in indigenous communities: The case of Quinault Indian nation	15
Damage to survival, development, and growth of Japanese flounder (Paralichthys olivaceus) at early developmental stages by Ulva prolifera decay	15
Interaction among spring phytoplankton succession, water discharge patterns, and hydrogen peroxide dynamics in the Caloosahatchee River in southwest Florida	15
Cyanotoxin production in shallow subtropical lakes is driven by nutrient enrichment and primary producer abundance on the millennial scale	15
Extracellular polymeric substances enhanced photosynthesis over respiration in Microcystis aeruginosa	15
Diversity of the holopelagic Sargassum microbiome from the Great Atlantic Sargassum Belt to coastal stranding locations	15
Insights into the nature of ichthyotoxins from the Chrysochromulina leadbeateri blooms in Northern Norwegian fjords	15
Harmful algal bloom species identified in the East China Sea through metabarcoding analysis of large-scale sampling expedition	15

The cytotoxicity of the haptophyte Chrysochromulina leadbeateri towards the Atlantic salmon gill cell line ASG-10	15
The relationship between salmon (Salmo salar) farming and cell abundance of harmful algal taxa	15
Thecal plate morphology, molecular phylogeny, and toxin analyses reveal two novel species of Alexandrium (Dinophyceae) and their potential for toxin production	14
Changing Pseudo-nitzschia and Dinophysis distributions in the North Sea and Western Approaches (NE Atlantic) and their potential use in biodiversity assessments	14
Sailing together: A review of the pelagic Sargassum microbiome	14
Mixotrophy in the bloom-forming genus Phaeocystis and other haptophytes	14
Growth and anatoxin-a production of Microcoleus (Cyanobacteria) strains from streams in California, USA	14
Editorial Board	14
Exposure of blue crab (Callinectes sapidus) to modified clay treatment of Karenia brevis as a bloom control strategy	14
Selection and characterization of plant-derived alkaloids with strong antialgal inhibition: growth inhibition selectivity and inhibitory mechanism	14
Editorial Board	14
Grazers modify the dinoflagellate relationship between toxin production and cell growth	14
Nutrient availability in a freshwater-to-marine continuum: Cyanobacterial blooms along the Lake Okeechobee Waterway	14
Playing hide and seek: Distribution with depth of potentially harmful epibenthic dinoflagellates of Southern El Hierro Island, Canary Islands (NE Atlantic)	14
Drivers of a window of opportunity for Dinophysis acuminata in a mussel seed-bank hotspot in Northwestern Patagonia	14
Morphology, phylogeny, and host range of the novel early-diverging oomycete Sirolpidium dinoletiferum sp. nov. parasitizing marine dinoflagellates	14
Microcystin congeners in Lake Erie follow the seasonal pattern of nitrogen availability	14
The Ciliate Euplotes balteatus Exhibits Removal Capacity upon the Dinoflagellates Karenia mikimotoi and Prorocentrum shikokuense	14
Responses of a harmful algal bloom-causing dinoflagellate Prorocentrum obtusidens to elevated temperature and urea	14
Identification of epigenetic histone modifications and analysis of histone lysine methyltransferases in Alexandrium pacificum	14
Temporal and spatial variation in the efficiency of a Floc & Sink technique for controlling cyanobacterial blooms in a tropical reservoir	14
Genomic and phylogenetic analyses of the domoic acid biosynthesis genes in the benthic diatom Nitzschia navis-varingica (Bacillariophyceae)	14
Monitoring of toxic cyanobacterial blooms in Lalla Takerkoust reservoir by satellite imagery and microcystin transfer to surrounding farms	14
Enhanced eDNA monitoring for detection of viable harmful algal bloom species using propidium monoazide	13
RT-PCR assay development of ITS and toxin gene regions of, Aetokthonos hydrillicola, a known epiphyte of the invasive species Hydrilla verticillata	13
Physiological changes and gene expression in the mixotrophic haptophyte, Prymnesium parvum, respond to mixed nitrogen sources	13
Editorial Board	13
Deciphering the photodegradation fate of Brevetoxins: Kinetics, degradation pathways, and toxicity evaluation	13
Light-driven differences in bacterial networks and organic matter decomposition: Insights from an analysis of the harmful cyanobacterium Microcystis aeruginosa PCC 7806	13
The surface as a primary response zone in Microcystis colonies under turbulence: Insights from integrating morphology, physiology, and hormesis	13
Multi-trophic paralytic shellfish toxin risk and management across seafood sectors in Tasmania	13
Editorial Board	13
Species and genetic diversity of notorious dinoflagellates Pfiesteria piscicida, Luciella masanensis, and relatives in marine sediments of China	13
Sargassum influxes in West Africa: Impacts, challenges, and prospects for sustainable management	12
Comparative toxicity of Karlodinium veneficum from France and New Zealand on fish gill cells and oyster gametes	12
High-efficiency preparation of formaldehyde-free tannin-based flocculants and their algae removal mechanism	12
Co-occurrence of freshwater and marine phycotoxins: A record of microcystins and domoic acid in Bogue Sound, North Carolina (2015 to 2020)	12
Six marine thecate Heterocapsa (Dinophyceae) from Malaysia, including the description of three novel species and their cytotoxicity potential	12
First report of PST-producing Microseira wollei from China reveals its novel toxin profile	12
Multispecies mass mortality in the Beagle Channel associated with paralytic shellfish toxins	12
Physical drivers of Noctiluca scintillans (Dinophyceae) blooms outbreak in the northern Taiwan Strait: A numerical study	12
Critical flow velocity thresholds for preventing persistent thermal stratification and cyanobacterial blooms in rivers	12
Alleviation of H2O2 toxicity by extracellular catalases in the phycosphere of Microcystis aeruginosa	12
Determining ecological interactions of key dinoflagellate species using an intensive metabarcoding approach in a semi-closed coastal ecosystem of South Korea	11
Diversity and distribution of benthic dinoflagellates in Tonga include the potentially harmful genera Gambierdiscus and Fukuyoa	11
Adaptive strategies of the harmful alga Heterosigma akashiwo to low salinity: rapid stress responses and long-term metabolic remodeling	11
Mesocosm study of PAC-modified clay effects on Karenia brevis cells and toxins, chemical dynamics, and benthic invertebrate physiology	11
Comparative evaluation of 18S rDNA V4 and 28S rDNA D1–2 regions for resolving Alexandrium species diversity to improve its use for metabarcoding	11
Mechanisms of harmful effects of Microcystis aeruginosa on a brackish water organism Moina mongolica based on physiological and transcriptomic responses	11
Diversity of amphidomatacean dinoflagellates in Japan, with a description of Azadinium inconspicuum sp. nov. and azaspiracid components in Azadinium poporum ribotypes	11
Seafood consumption during harmful algal blooms: The impact of information regarding safety and health	10
Possible functions of CobW domain-containing (CBWD) genes in dinoflagellates using Karlodinium veneficum as a representative	10
Context-dependent allelopathy in algal interactions: Insights from laboratory and natural phytoplankton communities	10
A new potentially toxic species of Gambierdiscus (Gonyaulacales, Dinophyceae) from the Western Pacific Ocean	10
Severe cyanobacterial blooms in an Australian lake; causes and factors controlling succession patterns	10
History, current status and future perspectives of sargassum management in the Eastern Caribbean SIDS: A story from the frontline	10
Succession of diversity, assembly mechanisms, and activities of the microeukaryotic community throughout Scrippsiella acuminata (Dinophyceae) bloom phases	10
Cryo-electron microscopy of extracellular vesicles associated with the marine toxic dinoflagellate Alexandrium minutum	10
Editorial Board	10
Editorial Board	10
The phyto-bacterioplankton couple in a shallow freshwater ecosystem: Who leads the dance?	10
The new chytridiomycete Paradinomyces triforaminorum gen. et sp. nov. co-occurs with other parasitoids during a Kryptoperidinium foliaceum (Dinophyceae) bloom in the Baltic Sea	10
Efficient inhibition of Microcystis aeruginosa using expanded perlite sustained-release pyrogallic acid: performance studies, mechanistic insights and ecological security assessment	10
High molecular diversity of potentially harmful heterotrophic dinophytes in tropical shrimp aquaculture ponds reveals a new dinophyte Malayana penaeicida gen. et sp. nov. (Peridiniales, Dinophyceae)	10
Control of cyanobacterial blooms with iron addition can favor stress-tolerant toxic species	10
Indole-3-acetic acid promotes growth in bloom-forming Microcystis via an antioxidant response	10
Pixel-scale satellite forecasting of cyanobacteria in Florida lakes	10
Divergent responses of an armored and an unarmored dinoflagellate to ocean acidification	10
Simplifying marine biotoxin data analysis: Advancing the Neuro-2a cell-based assay using R	10
Microcystin aids in cold temperature acclimation: Differences between a toxic Microcystis wildtype and non-toxic mutant	10
Indications that algal blooms may affect wild salmon in a similar way as farmed salmon	10
Trade-offs between photosynthetic capacity and structural economy underlie the rapid proliferation of floating Ulva prolifera	10
Passive sampling and molecular networking for surveillance of lipophilic marine biotoxins along the south coast of Korea	10
Transoceanic ships as a source of alien dinoflagellate invasions of inland freshwater ecosystems	10
A global assessment of areas suitable for Ulva prolifera growth and expansion under climate change scenarios	10
Mechanisms of Phaeocystis globosa blooms in the Beibu Gulf revealed by metatranscriptome analysis	10