Download Xenograpsus testudinatus

表一、海生所 104 學年專題討論(二) 摘要表
IMB 104Seminar (II) Abstract form
報告日期/Date：105/year 04/month 27/day
班別/學生姓名：海生所碩二 ，王薏銥
Class/Name:
題目Title : Dietary analysis on the shallow‐ water hydrothermal vent crab
Xenograpsus testudinatus using Illumina sequencing
作者Author(s): Tsz Wai Ho· Jiang Shiou Hwang · Man Kit Cheung · Hoi Shan
Kwan· Chong Kim Wong
期刊 Journal name: Springer
期頁數Issue and page nos: Mar Biol (2015) 162:1787–1798
摘要 Abstract:
Environmental conditions in hydrothermal vents are considered to be unsuitable
for most marine organisms due to discharge of hot and acidic water with high sulfur
content. The crab Xenograpsus testudinatus is endemic to the shallow-water
hydrothermal vents of Kue- ishan Island, Taiwan. This study aimed to provide
detailed information on the composition of eukaryotes and prokary- otes in the gut
and stomach of X. testudinatus by using Illu- mina sequencing of the 16S and 18S
ribosomal RNA genes. The mangrove crab Perisesarma bidens was also studied to
compare the diet and gut microbial fauna of crabs from different habitats. X.
testudinatus was found to feed on a wide array of organisms including algae, fishes,
bivalves, copepods, and anthozoans, whereas P. bidens was found to feed mainly on
Magnoliopsida plants. Soil bacteria such as Rodobacteraceae and cyanobacteria such
as Oscillatoriphy- cidae were present in both crabs, but Mycoplasmataceae and
Helicobacteraceae were found only in X. testudinatus. Our findings suggest that both
X. testudinatus and P. bidens are scavengers feeding on both prokaryotes and
eukaryotes. The results facilitate understanding of the feeding ecology of X.
testudinatus and provide a database for the food web dynamics of shallow-water
hydrothermal vents.