FN Archimer Export Format
PT J
TI Unravelling the trophic interaction between a parasitic barnacle (Anelasma squalicola) and its host Southern lanternshark (Etmopterus granulosus) using stable isotopes
BT 
AF Sabadel, A. J. M.
   Cresson, Pierre
   Finucci, B.
   Bennett, J.
AS 1:1;2:2;3:3;4:1;
FF 1:;2:PDG-RBE-HMMN-LRHBL;3:;4:;
C1 Department of Zoology, University of Otago, PO Box 56, Dunedin 9045, New Zealand
   IFREMER, Channel and North Sea Fisheries Research Unit, 150 Quai Gambetta, BP 699, 62 321 Boulogne sur Mer, France
   National Institute of Water and Atmospheric Research (NIWA), 301 Evans Bay Parade, Hataitai, Wellington 6021, New Zealand
C2 UNIV OTAGO, NEW ZEALAND
   IFREMER, FRANCE
   NIWA, NEW ZEALAND
SI BOULOGNE
SE PDG-RBE-HMMN-LRHBL
IN WOS Ifremer UPR
   copubli-int-hors-europe
IF 2.4
TC 4
UR https://archimer.ifremer.fr/doc/00795/90747/96785.pdf
LA English
DT Article
DE ;Deepwater;food web;host-parasite;New Zealand;nitrogen;parasite;shark;stable isotopes;trophic position
AB The parasitic barnacle, Anelasma squalicola, is a rare and evolutionary fascinating organism. Unlike most other filter-feeding barnacles, A. squalicola has evolved the capability to uptake nutrient from its host, exclusively parasitizing deepwater sharks of the families Etmopteridae and Pentanchidae. The physiological mechanisms involved in the uptake of nutrients from its host are not yet known. Using stable isotopes and elemental compositions, we followed the fate of nitrogen, carbon and sulphur through various tissues of A. squalicola and its host, the Southern lanternshark Etmopterus granulosus, to better understand the trophic relationship between parasite and host. Like most marine parasites, A. squalicola is lipid-rich and clear differences were found in the stable isotope ratios between barnacle organs. It is evident that the deployment of a system of ‘rootlets’, which merge with host tissues, allows A. squalicola to draw nutrients from its host. Through this system, proteins are then rerouted to the exterior structural tissues of A. squalicola while lipids are used for maintenance and egg synthesis. The nutrient requirement of A. squalicola was found to change from protein-rich to lipid-rich between its early development stage and its definitive size. 
PY 2022
PD DEC
SO Parasitology
SN 0031-1820
PU Cambridge University Press (CUP)
VL 149
IS 14
UT 000861628700001
BP 1976
EP 1984
DI 10.1017/S0031182022001299
ID 90747
ER

EF