A NEW CHINESE RECORD SPECIES OF CAPSALID MONOGENEA FROM AUXIS THAZARD THAZARD OF THE SOUTH CHINA SEA

2013 ◽  
Vol 36 (6) ◽  
pp. 1205-1207
Author(s):  
Chang-Ping YANG ◽  
Pan HU ◽  
Xue-Juan DING ◽  
Jian-Ying ZHANG
Keyword(s):  
South China Sea ◽  
South China ◽  
The South China Sea ◽  
The South ◽  
China Sea ◽  
Auxis Thazard

Morphological and molecular study of Neorhadinorhynchus nudus (Harada, 1938) (Acanthocephala: Cavisomidae) from Auxis thazard Lacepede (Perciformes: Scombridae) in the South China Sea

2018 ◽  
Vol 63 (3) ◽  
pp. 479-485 ◽  
Author(s):  
Liang Li ◽  
Hui-Xia Chen ◽  
Yue Yang
Keyword(s):  
South China Sea ◽  
South China ◽  
Sequence Data ◽  
Molecular Study ◽  
The South China Sea ◽  
The South ◽  
Nucleotide Variability ◽  
China Sea ◽  
Dna Sequence Data ◽  
Auxis Thazard

Abstract In the present study, Neorhadinorhynchus nudus (Harada, 1938) is reported from the frigate tuna Auxis thazard (Lacepéde) (Perciformes: Scombridae), in the South China Sea for the first time. The detailed morphology of N. nudus was studied using light and scanning electron microscopy based on the newly collected material. The results showed some morphometric variability between our specimens and previous studies, including the number of hooks per longitudinal row and the size of copulatory bursa and eggs. Our SEM observations also revealed all proboscis hooks emerged from elevated round rims on proboscis surface. In addition, N. nudus was firstly characterised using molecular methods by sequencing and analysing the ribosomal ITS and mitochondrial cox1 regions. There is no nucleotide divergence found in the ITS sequences, but a low level of nucleotide variability detected in the cox1 regions (the level of intraspecific nucleotide variability being 0.75% to 2.54%). The DNA sequence data obtained herein will indeed be a useful reference for rapid and accurate species identification of Neorhadinorhynchus.

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