FN Archimer Export Format
PT J
TI Hatchetfishes (Stomiiformes: Sternoptychidae) biodiversity, trophic ecology, vertical niche partitioning and functional roles in the western Tropical Atlantic
BT 
AF Nolé Eduardo, Leandro
   Bertrand, Arnaud
   Maia Mincarone, Michael
   Santos Silva, Lucas V.
   Frédou, Thierry
   Assunção, Ramilla V.
   Silva, Alex
   Ménard, Frédéric
   Schwamborn, Ralf
   LE LOCH, Francois
   Lucena-Frédou, Flávia
AS 1:1,2;2:1,2,3,4;3:3,4;4:1,2;5:1,5;6:2,3,5;7:3;8:6;9:3;10:5;11:1;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;
C1 Universidade Federal Rural de Pernambuco, Departamento de Pesca e Aquicultura, Recife, PE, Brazil
   Institut de Recherche pour le Développement (IRD), MARBEC (Université Montpellier, CNRS, Ifremer, IRD), Sète, France
   Universidade Federal de Pernambuco, Departamento de Oceanografia, Recife, PE, Brazil
   Universidade Federal do Rio de Janeiro, Instituto de Biodiversidade e Sustentabilidade, Caixa Postal 119331, Macaé, RJ, 27910-970, Brazil
   IRD, Univ Brest, CNRS, Ifremer, LEMAR, IUEM, F-29280 Plouzane, France
   Aix Marseille Univ, Université de Toulon, CNRS, IRD, MIO, UM110, Marseille, France
C2 UNIV FED RURAL PERNAMBUCO UFRPE, BRAZIL
   IRD, FRANCE
   UNIV FED PERNAMBUCO UFPE, BRAZIL
   UNIV FED RIO DE JANEIRO UFRJ, BRAZIL
   IRD, FRANCE
   UNIV AIX MARSEILLE, FRANCE
UM LEMAR
   MARBEC
IN WOS Cotutelle UMR
   copubli-france
   copubli-univ-france
   copubli-int-hors-europe
   copubli-sud
IF 4.08
TC 42
UR https://archimer.ifremer.fr/doc/00632/74428/74146.pdf
LA English
DT Article
CR ABRACOS
   ABRACOS 2
BO Antea
DE ;Brazil;Diet;Gelatinous organisms;Mesopelagic;Stable isotope composition;Dissolved oxygen;Seamounts;Oceanic islands
AB Species of the family Sternoptychidae (hatchetfishes) occur worldwide and play critical roles by sequestering carbon, recycling nutrients, and acting as a key trophic link between epipelagic primary consumers and higher trophic levels in marine ecosystems. Nevertheless, basic knowledge on their ecology is still lacking and their functional ecology remains understudied with respect to composition, organization, functions and environment interactions. Here we integrated comprehensive information collected in the western Tropical Atlantic on the diversity, abundance, distribution and trophic ecology of hatchetfishes, including physicochemical features of their habitats and extensive carbon and nitrogen stable isotope data on its main prey groups. On this basis we defined five functional groups of hatchetfishes with different diet preference, isotopic composition, and vertical abundance peaks and reveal a possible high resource partitioning. Additionally, these species might have a different feeding tie chronology. Hence, hatchetfishes segregate in different ecological groups responding differently to environmental constraints including oxygen concentration and presenting diverse functional roles. As deep-sea species that migrate to epipelagic waters, hatchetfishes may play a key role in the transfer of sub-surface photoassimilated carbon to deeper waters, a pathway through which the effects of climate change at the surface are transferred to the deep ocean. Moreover, as consumers of gelatinous organisms, these species convert “gelatinous energy” into “fish energy” readily usable by higher trophic levels, including endangered and commercially important species. This is a crucial trophic relationship that has been historically underestimated due to methodology limitations (e.g., quickly digested gelatinous organisms were probably underestimated in previous studies, based solely on stomach contents). Considering in ecosystem models this trophic relationship, as well as the functional organization of hatchetfishes, is important to properly answer important ecological questions including resource use, carbon transportation, and influence of mesopelagic community in climate change process. 
PY 2020
PD AUG
SO Progress In Oceanography
SN 0079-6611
PU Elsevier BV
VL 187
UT 000572347900002
DI 10.1016/j.pocean.2020.102389
ID 74428
ER

EF