A5061188162- Marine and coastal ecosystems
- Microbial Community Ecology and Physiology
- Marine Toxins and Detection Methods
- Marine Biology and Ecology Research
- Protist diversity and phylogeny
- Marine and coastal plant biology
- Methane Hydrates and Related Phenomena
- Geological and Geophysical Studies
- Geochemistry and Elemental Analysis
- Paleontology and Stratigraphy of Fossils
- Diatoms and Algae Research
Vietnam Academy of Science and Technology
2017-2024
Institute of Marine Geology and Geophysics
2020-2021
Institute of Oceanography
2016-2020
Identification of species the dinoflagellate genus Ostreopsis is difficult because several have been poorly described, others misidentified in literature, and type species, O. siamensis, has not described by contemporary taxonomic methods. In present study, it argued that sp. 6 as previous authors similar to we offer an emended description siamensis LM, SEM, molecular analyses nuclear LSU ITS rDNA based on material collected a few hundred kilometers from locality Gulf Thailand along...
Viet Nam has a coastline of 3200 km with thousands islands providing diverse habitats for benthic harmful algal species including Gambierdiscus. Some these produce ciguatera toxins, which may accumulate in large carnivore fish potentially posing major threats to public health. This study reports five Gambierdiscus from Vietnamese waters, notably G. australes, caribaeus, carpenteri, pacificus, and vietnamensis sp. nov. All are identified morphologically by LM SEM, identifications supported...
Protoperidinium is one of the most important genera armoured marine dinoflagellates. Despite its importance and many previous studies on this genus, descriptions species are incomplete, their diagnostic features not properly described illustrated have been illustrated, if at all, only by line drawings documented micro‐photography. As here described, examinations about 600 phytoplankton net samples collected from Viet Nam adjacent coastal waters over last decade revealed 100 , ten which...
Species of the subgenus Archaeperidinium belonging to genus Protoperidinium were characterized by its morphology, such as “ortho”-type first apical plate and two intercalary plates. A total tenArchaeperidinium species have been found in coastal waters Vietnam, which, six species, viz.P. abei var. rotundata,P.compressum, P. stellatum.P. cf. planiceps, latum nux newly recorded for Dinoflagellate flora coastalwaters Vietnam. All described illustrated shape, size ornamentation theca under light...
A new heterotrophic dinoflagellate, Protoperidinium vietnamicum sp. nov. was described from the coastal waters of Viet Nam. It is characterized by its elongation, pentagonal to pyriform body in ventral or dorsal view, and moderately dorsoventrally compressed. Epitheca tapering into a robust apical horn shorter than antapical horns. Cingulum equatorial, slightly descending. Sulcus wide, shallow, oblique. Plate 1’ ortho-type, intercalary 2a 3a plates are pentagonal. 1a quadrangular, area...
A new heterotrophic dinoflagellate, Protoperidinium vietnamicum sp. nov. is described from the coastal waters of Vietnam. It characterized by an elongated, pentagonal to pyriform body in ventral and dorsal view, with moderate dorsoventral compression. Epitheca tapering into a robust apical horn, which shorter than antapical horns. Cingulum equatorial, descending about 0.50–0.75 its width. Sulcus wide, shallow, slightly oblique. Plate 1′ ortho‐type, intercalary 2a 3a plates are pentagonal. 1a...
Tintinnidsarean important protozoan group in the aquatic food web and had been widely studied various waters. There are about 1000 known species world. However, there have beenvery few taxonomic studies Vietnam therefore number of Tintinnid taxa their distribution poorly known. Thepresent study documents 65 tintinnids belonging to 30 genera 13 families samples collected from Khanh Hoa - Binh Thuan waters 2016 2017. were 17 new records for fauna, raising recorded 125 taxa. assemblages...
Although there were a number of studies on the section Oceanica genus Protoperidinium, most published figures did not well revealed clear features anterior intercalary plates. In this paper, Protoperidinium carum was re-described in details cell morphology, plate patterns and thecal ornamentation, especially second (2a) is wide pentagonal instead hexagonal type as previous descriptions. This species illustrated with line drawing, light scanning electron microscope photographs. P. newly...
Studies on dinoflagellate cysts provide important knowledge the ecology of dinoflagellates and harmful algal blooms (HABs). In this study, distribution abundance in surface sediments from 17 stations at Van Phong Bay were analyzed. There 55 different types representing 3 orders 18 genera, 8 unidentified cyst recorded. Peridiniales was most diverse order with 29 types, including 20 Protoperidinium types. 10 7 potential toxic species 4 bloom forming found, indicating a risk Bay. Number density...
Minusculum (Lebour) Balech is one of four subgenera the genus Protoperidinium Bergh 1881. Only five species this subgenus have been discovered worldwide, most which are distributed in cold waters. In study, anomaloplaxum (Balech) reported from Vietnam and thus for first time Asia-Pacific This illustrated with line drawing, light scanning electron microscopic photographs described details ornamentation thecal plates as well its geographic distribution.