@article{fdi:010072777, title = {{T}rophic flow structure of a neotropical estuary in northeastern {B}razil and the comparison of ecosystem model indicators of estuaries}, author = {{L}ira, {A}. and {A}ngelini, {R}. and {L}e {L}oc'h, {F}ran{\c{c}}ois and {M}{\'e}nard, {F}r{\'e}d{\'e}ric and {L}acerda, {C}. and {F}redou, {T}. and {F}redou, {F}. {L}.}, editor = {}, language = {{ENG}}, abstract = {{W}e developed an {E}copath model for the {E}stuary of {S}irinhaem {R}iver ({SIR}), a small-sized system surrounded by mangroves, subject to high impact, mainly by the sugar cane and other farming industries in order to describe the food web structure and trophic interactions. {I}n addition, we compared our findings with those of 20 available {E}copath estuarine models for tropical, subtropical and temperate regions, aiming to synthesize the knowledge on trophic dynamics and provide a comprehensive analysis of the structures and functioning of estuaries. {O}ur model consisted of 25 compartments and its indicators were within the expected range for estuarine areas around the world. {T}he average trophic transfer efficiency for the entire system was 11.8%, similar to the theoretical value of 10%. {T}he {K}eystone {I}ndex and {MTI} ({M}ixed {T}rophic {I}mpact) analysis indicated that the snook ({C}entropomus undecimalis and {C}entropomus parallelus) and jack ({C}aranx latus and {C}aranx hippos) are considered as key resources in the system, revealing their high impact in the food web. {B}oth groups have a high ecological and commercial relevance, despite the unregulated fisheries. {A}s result of the comparison of ecosystem model indicators in estuaries, differences in the ecosystem structure from the low latitude zones (tropical estuaries) to the high latitude zones (temperate system) were noticed. {T}he structure of temperate and sub-tropical estuaries is based on high flows of detritus and export, while tropical systems have high biomass, respiration and consumption rates. {H}igher values of {S}ystem {O}mnivory {I}ndex ({SOI}) and {O}verhead ({SO}) were observed in the tropical and subtropical estuaries, denoting a more complex food chain. {G}lobally, none of the estuarine models were classified as fully mature ecosystems, although the tropical ecosystems were considered more mature than the subtropical and temperate ecosystems. {T}his study is an important contribution to the trophic modeling of estuaries, which may also help the knowledge of the role of key ecosystem processes in {SIR}.}, keywords = {{T}ropical estuary ; {E}copath ; {F}ood web ; {G}lobal comparison of ecological indicators ; {BRESIL} ; {ZONE} {TROPICALE}}, booktitle = {}, journal = {{J}ournal of {M}arine {S}ystems}, volume = {182}, numero = {}, pages = {31--45}, ISSN = {0924-7963}, year = {2018}, DOI = {10.1016/j.jmarsys.2018.02.007}, URL = {https://www.documentation.ird.fr/hor/fdi:010072777}, }