Table 2. Frequency of meiofaunal sequences identified in the 2017 and 2018 assessments.
Meiofauna assemblage composition and relative frequency of sequences of each amplicon sequence variants (ASVs) identified at Rio Doce estuary in 2017 and 2018 assessments.
| Phylum | Class | Order | 2017 Assessment | 2018 Assessment |
|---|---|---|---|---|
| Miscellaneous Annelids | – | 5.79% | ||
| Clitellata | Haplotaxida | 0.21% | 3.09% | |
| Rhynchobdellida | 0.12% | – | ||
| Polychaeta | Echiuroinea | 0.00% | – | |
| Eunicida | 1.97% | – | ||
| Spionida | 2.73% | 0.13% | ||
| Miscellaneous Arthropods | 0.20% | 19.52% | ||
| Arachnida | Acari | 0.34% | 0.09% | |
| Branchiopoda | – | 0.25% | ||
| Diplostraca | – | <0.01% | ||
| Malacostraca | Eucarida | <0.01% | 0.02% | |
| Maxillopoda | 0.02% | 7.07% | ||
| Calanoida | 0.01% | – | ||
| Hexanauplia(Copepoda) | 0.06% | – | ||
| Cyclopoida | – | 0.57% | ||
| Harpacticoida | 0.10% | 0.13% | ||
| Ostracoda | Halocyprida | – | 0.02% | |
| Podocopida | 33.68% | 25.39% | ||
| Bryozoa | Gymnolaemata | 0.03% | – | |
| Phylactolaemata | Plumatellida | – | 0.08% | |
| Cnidaria | Anthozoa | Actiniaria | <0.01% | – |
| Zoantharia | 0.01% | – | ||
| Hydrozoa | 0.01% | 0.01% | ||
| Anthoathecata | 0.06% | 0.02% | ||
| Limnomedusae | 0.01% | 2.45% | ||
| Myxozoa | Bivalvulida | 0.01% | 0.08% | |
| Gastrotricha | Chaetonotida | 23.11% | 0.12% | |
| Micrognathozoa | <0.01% | – | ||
| Miscellaneous Molluscs | – | <0.01% | ||
| Bivalvia | – | 0.08% | ||
| Myoida | 0.04% | – | ||
| Nuculoida | <0.01% | – | ||
| Veneroida | 0.01% | 2.82% | ||
| Gastropoda | Caenogastropoda | 0.06% | – | |
| Heterobranchia | <0.01% | – | ||
| Nematoda | Chromadorea | 0.08% | 0.09% | |
| Aerolaimida | 0.03% | – | ||
| Chromadorida | 0.02% | – | ||
| Desmodorida | 6.43% | 0.23% | ||
| Monhysterida | 16.73% | 4.52% | ||
| Rhabditida | <0.01% | – | ||
| Tylenchida | <0.01% | 0.02% | ||
| Enoplea | Dorylaimia | 0.22% | 1.39% | |
| Enoplida | 6.72% | 0.16% | ||
| Triplonchida | 0.38% | 0.56% | ||
| Nemertea | Anopla | Heteronemertea | <0.01% | 5.84% |
| Enopla | Monostilifera | – | 0.09% | |
| Miscellaneous Platyhelminthes | 0.02% | 0.62% | ||
| Catenulida | 0.01% | 0.31% | ||
| Monogenea | Monopisthocotylea | 0.07% | 0.10% | |
| Rhabditophora | Macrostomida | 0.01% | 1.97% | |
| Proseriata | 0.91% | – | ||
| Rhabdocoela | 5.13% | 0.47% | ||
| Seriata | 0.13% | 0.03% | ||
| Trematoda | – | 0.18% | ||
| Echinostomida | – | 0.01% | ||
| Rotifera | Bdelloidea | <0.01% | 14.90% | |
| Adinetida | – | 0.05% | ||
| Philodinida | – | 0.09% | ||
| Monogononta | <0.01% | 0.60% | ||
| Flosculariacea | 0.01% | – | ||
| Ploimida | 0.23% | 0.04% | ||
| Tardigrada | Eutardigrada | Parachela | 0.03% | – |