FN Archimer Export Format
PT J
TI Reproduction in deep‐sea vent shrimps is influenced by diet, with rhythms apparently unlinked to surface production
BT 
AF Methou, Pierre
   Chen, Chong
   Kayama Watanabe, Hiromi
   Cambon, Marie-Anne
   Pradillon, Florence
AS 1:1,2;2:2;3:2;4:1;5:1;
FF 1:;2:;3:;4:PDG-REM-BEEP-LMEE;5:PDG-REM-BEEP-LEP;
C1 Univ Brest, CNRS, Ifremer, UMR6197 Biologie et Ecologie des Ecosystèmes marins Profonds Plouzané ,France
   X‐STAR, Japan Agency for Marine‐Earth Science and Technology (JAMSTEC) Yokosuka, Japan
C2 IFREMER, FRANCE
   JAMSTEC, JAPAN
SI BREST
SE PDG-REM-BEEP-LMEE
   PDG-REM-BEEP-LEP
UM BEEP-LM2E
IN WOS Ifremer UMR
   DOAJ
   copubli-int-hors-europe
IF 2.6
TC 1
UR https://archimer.ifremer.fr/doc/00786/89833/95286.pdf
   https://archimer.ifremer.fr/doc/00786/89833/95287.pdf
LA English
DT Article
CR BICOSE
   BICOSE 2
   HERMINE
BO Pourquoi pas ?
DE ;biological rhythms;crustacean;deep sea;hydrothermal vent;reproduction;seasonality;trophic ecology
AB Variations in offspring production according to feeding strategies or food supply have been recognized in many animals from various ecosystems. Despite an unusual trophic structure based on non-photosynthetic primary production, these relationships remain largely under-studied in chemosynthetic ecosystems. Here, we use Rimicaris shrimps as a study case to explore relationships between reproduction, diets, and food supply in these environments. For that, we compared reproductive outputs of three congeneric shrimps differing by their diets. They inhabit vents located under oligotrophic waters of tropical gyres with opposed latitudes, allowing us to also examine the prevalence of phylogenetic vs environmental drivers in their reproductive rhythms. For this, we used both our original data and a compilation of published observations on the presence of ovigerous females covering various seasons over the past 35 years. We report distinct egg production trends between Rimicaris species relying solely on chemosymbiosis—R. exoculata and R. kairei—and one relying on mixotrophy, R. chacei. Besides, our data suggest a reproductive periodicity that does not correspond to seasonal variations in surface production, with substantial proportions of brooding females during the same months of the year, despite those months corresponding to either boreal winter or austral summer depending on the hemisphere. These observations contrast with the long-standing paradigm in deep-sea species for which periodic reproductive patterns have always been attributed to seasonal variations of photosynthetic production sinking from the surface. Our results suggest the presence of an intrinsic basis for biological rhythms in the deep sea, and bring to light the importance of having year-round observations in order to understand the life history of vent animals. 
PY 2022
PD JUN
SO Ecology And Evolution
SN 2045-7758
PU Wiley
VL 12
IS 7
UT 000826187600001
DI 10.1002/ece3.9076
ID 89833
ER

EF