Oliveira, Ana FilipaMarques, Sónia CotrimPereira, Joana LuísaAzeiteiro, Ulisses Miranda2023-09-082023-09-082023Ana Filipa Oliveira, Sónia Cotrim Marques, Joana Luísa Pereira, Ulisses Miranda Azeiteiro, A review of the order mysida in marine ecosystems: What we know what is yet to be known, Marine Environmental Research, Volume 188, 2023, 106019, ISSN 0141-1136, https://doi.org/10.1016/j.marenvres.2023.106019.0141-11361879-0291http://hdl.handle.net/10400.8/8773We acknowledge financial support to FCT through a PhD grant awarded to Oliveira A.F. (2021.06254. BD). Also, we acknowledge financial support to CESAM by FCT/MCTES (UIDP/50017/2020+UIDB/50017/2020+ LA/P/0094/2020) and MARE (UIDB/04292/2020+UIDP/04292/2020) and the project LA/P/0069/2020 granted to the Associate Laboratory ARNET, through national funds.Mysids have a high ecological importance, particularly by their role in marine food chains as a link between the benthic and pelagic realms. Here we describe the relevant taxonomy, ecological aspects such as distribution and production, and their potential as ideal test organisms for environmental research. We also highlight their importance in estuarine communities, trophic webs, and their life history, while demonstrating their potential in addressing emergent problems. This review emphasizes the importance of mysids in understanding the impacts of climate change and their role in the ecology of estuarine communities. Although there is a dearth of research in genomic studies, this review emphasizes the relevance of mysids and their potential as a model organism in environmental assessment studies of prospective or retrospective nature and highlights the need for further research to enhance our understanding of this group’s ecological significance.engEnvironmental variabilityMarine ecologyEmergent studiesClimate changeTest organismsEstuariesjournal article10.1016/j.marenvres.2023.106019