@article{fdi:010086052, title = {{T}haliacean community responses to distinct thermohaline and circulation patterns in the {W}estern {T}ropical {S}outh {A}tlantic {O}cean}, author = {{T}osetto, {E}. {G}. and {S}ilva, {B}. {B}. and {D}iaz, {X}. {F}. {G}. and {N}eumann-{L}eitao, {S}. and {B}ertrand, {A}rnaud}, editor = {}, language = {{ENG}}, abstract = {{I}n western boundary current systems, strong currents transport oligotrophic oceanic waters towards the coast. {T}haliaceans may have an advantage in these systems due their ability to filter small particles such as the bacterioplankton, typically responsible for the primary production in oligotrophic waters. {H}ere, we evaluated the structure of the thaliacean community present in the tropical {S}outh {A}tlantic {O}cean western boundary current system to test the hypothesis that species distribution and abundance are structured by the circulation and thermohaline features. {F}or that purpose, we used data collected though 40 mm mesopelagic trawls above the slope and around oceanic seamounts and islands. {R}esults reveal distinct patterns in the thaliacean community structure. {O}ver the continental slope, under the influence of the strong {N}orth {B}razilian {U}ndercurrent, {P}yrosoma atlanticum was highly abundant. {S}oestia zonaria was also present but in a lesser amount. {O}ffshore, around oceanic islands and {S}eamounts under the influence of the central branch of {S}outh {E}quatorial {C}urrent, {D}oliolida spp. were the dominant thaliacean, co-occurring with {P}. atlanticum in lower abundance. {M}esh selectivity is a potential drawback in these results since the coarse aperture may have lost smaller species and early life stages.}, keywords = {{P}yrosoma atlanticum ; {S}oestia zonaria ; {D}oliolida ; {N}orth {B}razilian undercurrent ; {S}outh {E}quatorial current ; {G}elatinous zooplankton ; {ZONE} {TROPICALE} ; {ATLANTIQUE} {SUD} ; {NORD} {BRESILIEN} {COURANT}}, booktitle = {}, journal = {{H}ydrobiologia}, volume = {849}, numero = {21}, pages = {4679--4692}, ISSN = {0018-8158}, year = {2022}, DOI = {10.1007/s10750-022-05007-3}, URL = {https://www.documentation.ird.fr/hor/fdi:010086052}, }