The genus is widely distributed in stagnant water bodies in Southeast Asia. During a comprehensive collection of freshwater copepods from different areas in Thailand, a previously unknown species of calanoid copepod, , was recorded. Representatives were found in a natural swamp located in the Kok Phutaka community forest in Khon Kaen Province, northeastern Thailand.
View Article and Find Full Text PDFThe fairy shrimp genus Rogers, 2005 currently contains a single species reported from Russia and Mongolia. In 2013, an unidentified population was reported from the eastern margin of the Tibetan Plateau in China's Yunnan Province, from Patatson National Park in Shangri-La County. Here, we describe the Chinese populations as a new species, This new species is distinguished from its congener, (Smirnov, 1930), by the form of the male second antennae and the gonopod.
View Article and Find Full Text PDFPhyllodiaptomus (Phyllodiaptomus) parachristineae, a new diaptomid copepod, was collected from 30 sites in the lower Mekong River Basin floodplain in northeastern Thailand and nine sites in Cambodia. The new species is the 13 species of the genus to have been recorded across Asia. It has a wide range of habitats, occurring in small to large, temporary to permanent water bodies, and it can be found at any time of the year.
View Article and Find Full Text PDFA new rare species of Anthalona Van Damme, Dumont & Sinev, 2011, Anthalona vandammei sp. nov. (Anomopoda: Chydoridae), is described from Thailand.
View Article and Find Full Text PDFThe center-periphery hypothesis (CPH) predicts that peripheral populations will have lower genetic variation than those at the center of a species' distribution. However, ecological margins do not always coincide with geographical edges when topographies are diverse. Historical climate changes can also strongly affect genetic variation.
View Article and Find Full Text PDFA new species of harpacticoid copepod belonging to the genus Elaphoidella is described, based on materials collected from Thae Wa Phithak Cave, Lopburi Province, central Thailand. Specimens of Elaphoidella longiramus sp. nov.
View Article and Find Full Text PDFTo enhance genomic resources and to understand the molecular immune mechanisms underlying the response of fairy shrimp (Streptocephalus sirindhornae) to pathogens, we first performed a comparative gene transcription analysis from Aeromonas hydrophila-immunized shrimp and from a control group through RNA sequencing. Meanwhile, the differentially expressed genes (DEGs) were investigated, and a total of 46,958,894 clean reads were obtained and then assembled into 73,297 unigenes with an average length of 993 bp and an N50 of 1,458 bp. Unigenes were annotated by comparison with the NR/NT/KO/SwissProt/PFAM/GO and KOG databases, and 28,198 unigenes (38.
View Article and Find Full Text PDFA new species of Aloninae, Karualona arcana sp. nov. (Cladocera: Chydoridae) is described from Northeast Thailand.
View Article and Find Full Text PDFTwo new copepod species from two caves in northeastern and southern Thailand are described. Elaphoidella isana sp. nov.
View Article and Find Full Text PDFIt is widely accepted among the Cladocera (Crustacea) taxonomists that almost all cosmopolitan taxa are represented by some un-revised complexes of cryptic species. But many macro taxa of the cladocerans are still unrevised. The aim of this work is to analyze the taxonomic status of Oriental populations of the genus Bosminopsis Richard, 1895 (Anomopoda: Bosminidae) based on morphological characters.
View Article and Find Full Text PDFThe class Branchiopoda (Crustacea) shows great diversity in morphology and lifestyle among its constituent higher-level taxa: Anostraca, Notostraca, Laevicaudata, Spinicaudata, Cyclestherida and Cladocera. The phylogenetic relationships among these taxa have long been controversial. We sequenced three orthologous nuclear genes that encode the catalytic subunit of DNA polymerase delta and the largest and second-largest subunits of RNA polymerase II in the expectation that the amino acid sequences encoded by these genes might be effective in clarifying branchiopod phylogeny and estimating the times of divergence of the major branchiopodan taxa.
View Article and Find Full Text PDFWe describe a new species of from the Oriental region using museum specimens collected from India and fresh material from Thailand. This species has egg morphology resembling s. lat.
View Article and Find Full Text PDFAn intensive study of cladoceran diversity in Lake Kud-Thing, a Ramsar site of Bueng Kan Province, Thailand, was conducted. One hundred and twenty-five qualitative samples were collected from 15 localities during the period from June 2012 to November 2014. A total of 58 species belonging to 38 genera was recorded.
View Article and Find Full Text PDFLaevicaudata has a nearly global distribution, but only a few records from China. We present a new (Crustacea: Branchiopoda: Laevicaudata) species, sp. nov.
View Article and Find Full Text PDFA new species of Cladocera, Anthalona spinifera sp. nov., is described from North-East Thailand.
View Article and Find Full Text PDFWe present a second species of Theosbaena, which also represents the second species of Thermosbaenacea from mainland Asia. This new species is apparently endemic to a limestone cave in Nakhon Sawan Province in central Thailand. Theosbaena kiatwongchai n.
View Article and Find Full Text PDFIn order to address the dearth of information on Rotifera in Vietnam, and especially on rotifers inhabiting freshwater psammon in Southeast Asia, we collected and examined twenty-five hygropsammon samples from Bau Thiem Lake, Thua Thien Hue Province, central Vietnam. A total of eighty-nine species-level rotifer taxa were identified, belonging to 21 genera and 13 families. Of these, 48 taxa (54%) are new to Vietnam, including three species, Lecane climacois Harring & Myers, 1926, Notommata cerberus (Gosse, 1886) and Trichocerca intermedia (Stenroos, 1898) that are new to the Oriental region, and three species, Lecane phapi n.
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