A new species of Pseudodiaptomus (Crustacea, Copepoda, Calanoida, Pseudodiaptomidae) from the Prasae River Estuary, Gulf of Thailand

Srinui, Khwanruan; Nishida, Shuhei; Ohtsuka, Susumu

doi:10.3897/zookeys.338.5531

Cited by 10 publications

(4 citation statements)

References 22 publications

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“…It was found in roadside canals and tributaries that connected to the Mekong River in Ho Chi Minh City. This species was recently described from specimens collected in the Prasae river estuary, on the eastern coast of the Gulf of Thailand [29]. In addition, Pseudodiaptomus annandelei was found in a wide range of habitats, including freshwater habitats such as rivers, lakes, and ponds, which correspond with the previous records of this species in fresh and brackish water in the Mekong Delta region by Phan et al (2015) [21].…”

Section: Calanoid Copepod Diversity In Vietnamsupporting

confidence: 83%

Diversity of Freshwater Calanoid Copepods (Crustacea: Copepoda: Calanoida) in Southern Vietnam with an Updated Checklist for the Country

Boonmak

Sanoamuang

2022

Diversity

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The diversity of freshwater calanoid copepods from different habitats in Vietnam is investigated based on our findings from a field expedition in 2012–2013 and literature reviews. We collected 160 samples from 87 sites, including lakes, ponds, roadside canals, rivers, and rice fields in eight provinces of southern Vietnam. A total of 13 species belonging to eight genera and three families were recorded. Among these, four were recorded for the first time in Vietnam (Mongolodiaptomus malaindosinensis, Mongolodiaptomus mekongensis, Vietodiaptomus blachei, and Pseudodiaptomus siamensis). One unidentified taxon (Tropodiaptomus sp.) probably belongs to an undescribed species. Both Eodiaptomus draconisignivomi and M. malaindosinensis were the most frequently encountered species (28.74% of the sampled sites), followed by Mongolodiaptomus botulifer (24.14%), while Neodiaptomus yangtsekiangensis, Tropodiaptomus oryzanus, and Tropodiaptomus sp. are rare species found in a single locality. To date, 40 calanoid species (33 in the family Diaptomidae) have been recorded from Vietnam, and an updated list is presented. Seven species are potentially endemic to Vietnam. At the same sampling dates, the species richness of the calanoids was a range of 1–5 species per locality. The results of the Canonical Correspondence Analysis showed that pH and conductivity tended to be positively related to the calanoid distribution.

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Section: Calanoid Copepod Diversity In Vietnamsupporting

confidence: 83%

Diversity of Freshwater Calanoid Copepods (Crustacea: Copepoda: Calanoida) in Southern Vietnam with an Updated Checklist for the Country

Boonmak

Sanoamuang

2022

Diversity

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“…The samples were divided by a Folsom splitter until each aliquot contained approximately 400-500 specimens. Zooplankters were sorted and identified using the keys of Shen (1979) for freshwater species, and those of Chihara and Murano (1997); Walter et al (2006), Sakaguchi and Ueda (2010); Ueda et al (2011), Srinui et al (2013Srinui et al ( , 2019, Lian et al (2018), and Shih et al (2019) for marine species. The numbers of individuals (ind.)…”

Section: Identification and Abundance Measurements Of Zooplanktonmentioning

confidence: 99%

Zooplankton Fluctuations in the Surface Waters of the Estuary of a Large Subtropical Urban River

et al. 2021

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The Danshuei River has a third largest catchment area and third longest in Taiwan. It flows through the capital, Taipei, and more than six million people live within its catchment area. Its estuary is characterized by a highly variable chemical and physical environment that is affected by the interaction of inland freshwater runoff with wastewater, and toward the coast is also influenced by the China Coastal Current and the Kuroshio Current. By collecting zooplankton bimonthly in 2014 from the surface layer (0–2 m depth) at five sites in the estuary, we were able to demonstrate that the composition of the zooplankton, and particularly its copepod fraction, varied significantly among sampling stations and months, thereby revealing seasonal succession. Fourteen higher taxa or other categories of zooplankter were identified, with the following being most common taxa: Decapoda, Copepoda (including Calanoida, Cyclopoida, and Harpacticoida), and “other larvae.” The Copepoda comprised 44 taxa (including eight only identified to genus) belonging to 3 orders, 17 families, and 29 genera, the five most abundant of which were Bestiolina n. sp. (undescribed), Corycaeus spp., Parvocalanus crassirostris, Acartia sp., and Paracalanus parvus. The highest and lowest copepod abundances were recorded in July (2557.88 inds. m–3) and January (1.3 inds. m–3), respectively. Observed changes in abundance of many kinds of copepod appeared to be significantly related to changes in physico-chemical parameters (e.g., salinity, temperature, pH, and dissolved oxygen concentration). Cluster analysis confirmed the existence of distinct copepod communities, each characterized by a preference for a different set of environmental conditions. Our comprehensive literature review of the copepod biodiversity of Taiwan’s major rivers for comparison with similar data compiled for other estuaries in the world, the first time such a review has been compiled, shows that 32 copepod taxa have been recorded from the brackish and freshwater parts of the Danshuei River. They represent 58.2% of the total number of brackish- and freshwater copepod species in Taiwan, and five of them have so far only been recorded in the Danshuei River: the calanoids Acartiella sinensis and Pseudodiaptomus forbesi, the cyclopoids Oithona fragilis and Oithona simplex, and the harpacticoid Tachidius (Tachidius) discipes.

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“…The genus Pseudodiaptomus comprises today 80 species, five of which have been described in the last 10 years (e.g., Nishida & Rumengan, 2005;Sakaguchi & Ueda, 2010;Srinui et al, 2013). Most of them are distributed in the Indo-Pacific area, occupying a few restricted regions, and the majority (~60 species) occupies only one geographical area or two adjacent ones (Table 1 in the Supplementary material).…”

Section: Introductionmentioning

confidence: 99%

Spreading factors of a globally invading coastal copepod

Sabia

Zagami²,

Mazzocchi

et al. 2015

Medit. Mar. Sci.

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The Mediterranean Sea is one of the most affected areas by alien invasions, which are continuously increasing due to the intense human activities and environmental changes that favor the introduction of species previously unable to colonize the basin. This is the case of the copepods of the genus Pseudodiaptomus, first described in the Indian Ocean and considered as one of the most resistant to unfavorable conditions but never recorded in the Mediterranean until 2011 though present in adjacent seas. Pseudodiaptomus marinus, in particular, is common in shallow marine-brackish waters and is one of the species often found in ballast waters and in aquaculture plants. Native of Japan, it has started spreading since 1950s, and its populations have established in several harbors, eutrophic inlets, and lagoons along the coasts of the Pacific and Indian Oceans. In the last few years, P. marinus has been increasingly reported in European Seas (Mediterranean Sea and North Sea).In this article, we review the invasion history of this species with a special emphasis on its records in the Mediterranean Sea, and its occurrence and establishment in Sicilian waters. We also compare the biological traits and population dynamics of P. marinus with those of other representative of the genus and discuss about the possible mechanisms of introduction in new environments. The aim of this work is to understand the reasons of successful invasion of P. marinus and the environmental and biological factors that may lead to its further biogeographic expansion.

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A new species of Pseudodiaptomus (Crustacea, Copepoda, Calanoida, Pseudodiaptomidae) from the Prasae River Estuary, Gulf of Thailand

Cited by 10 publications

References 22 publications

Diversity of Freshwater Calanoid Copepods (Crustacea: Copepoda: Calanoida) in Southern Vietnam with an Updated Checklist for the Country

Diversity of Freshwater Calanoid Copepods (Crustacea: Copepoda: Calanoida) in Southern Vietnam with an Updated Checklist for the Country

Zooplankton Fluctuations in the Surface Waters of the Estuary of a Large Subtropical Urban River

Spreading factors of a globally invading coastal copepod

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