FN Archimer Export Format
PT J
TI Fine-scale vertical relationships between environmental conditions and sound scattering layers in the Southwestern Tropical Atlantic
BT 
AF Assunção, Ramilla
   Lebourges-Dhaussy, Anne
   da Silva, Alex C.
   Roudaut, Gildas
   Ariza, Alejandro
   Eduardo, Leandro N.
   Queiroz, Syumara
   Bertrand, Arnaud
AS 1:1,2;2:2;3:1;4:2;5:3,4;6:3,5;7:1;8:1,3,5;
FF 1:;2:;3:;4:;5:PDG-RBE-HALGO-EMH;6:;7:;8:;
C1 Laboratorio de Oceanografia Fısica Estuarina e Costeira, Departamento de Oceanografia, UFPE, Recife, Pernambuco, Brazil
   LEMAR, UBO, IFREMER, IRD, CNRS, Technopole Brest Iroise, Plouzane , France
   MARBEC, Universite Montpellier, CNRS, Ifremer, IRD, Sète, France
   DECOD (Ecosystem Dynamics and Sustainability), IFREMER, INRAe, Institut-Agro—Agrocampus Ouest, Nantes, France
   Universidade Federal Rural de Pernambuco, Recife, Pernambuco, Brazil
C2 UNIV FED PERNAMBUCO UFPE, BRAZIL
   IRD, FRANCE
   IRD, FRANCE
   IFREMER, FRANCE
   UNIV FED RURAL PERNAMBUCO UFRPE, BRAZIL
SI NANTES
SE PDG-RBE-HALGO-EMH
UM LEMAR
   MARBEC
   DECOD
IN WOS Ifremer UMR
   WOS Cotutelle UMR
   DOAJ
   copubli-france
   copubli-p187
   copubli-int-hors-europe
   copubli-sud
IF 3.7
TC 2
UR https://archimer.ifremer.fr/doc/00849/96127/104252.pdf
   https://archimer.ifremer.fr/doc/00849/96127/104253.tif
   https://archimer.ifremer.fr/doc/00849/96127/104254.tif
   https://archimer.ifremer.fr/doc/00849/96127/104255.tif
   https://archimer.ifremer.fr/doc/00849/96127/104256.xlsx
LA English
DT Article
CR ABRACOS
   ABRACOS 2
BO Antea
AB Ocean dynamics initiate the structure of nutrient income driving primary producers, and these, in turn, shape the distribution of subsequent trophic levels until the whole pelagic community reflects the physicochemical structure of the ocean. Despite the importance of bottom-up structuring in pelagic ecosystems, fine-scale studies of biophysical interactions along depth are scarce and challenging. To improve our understanding of such relationships, we analyzed the vertical structure of key oceanographic variables along with the distribution of acoustic biomass from multi-frequency acoustic data (38, 70, and 120 kHz) as a reference for pelagic fauna. In addition, we took advantage of species distribution databases collected at the same time to provide further interpretation. The study was performed in the Southwestern Tropical Atlantic of northeast Brazil in spring 2015 and autumn 2017, periods representative of canonical spring and autumn conditions in terms of thermohaline structure and current dynamics. We show that chlorophyll-a, oxygen, current, and stratification are important drivers for the distribution of sound scattering biota but that their relative importance depends on the area, the depth range, and the diel cycle. Prominent sound scattering layers (SSLs) in the epipelagic layer were associated with strong stratification and subsurface chlorophyll-a maximum. In areas where chlorophyll-a maxima were deeper than the peak of stratifications, SSLs were more correlated with stratification than subsurface chlorophyll maxima. Dissolved oxygen seems to be a driver in locations where lower oxygen concentration occurs in the subsurface. Finally, our results suggest that organisms seem to avoid strong currents core. However, future works are needed to better understand the role of currents on the vertical distribution of organisms. 
PY 2023
PD AUG
SO Plos One
SN 1932-6203
PU Public Library of Science (PLoS)
VL 18
IS 8
UT 001043329800034
DI 10.1371/journal.pone.0284953
ID 96127
ER

EF