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Fig. 1 in Phylogenetic position of the freshwater fish trypanosome, Trypanosoma ophiocephali (Kinetoplastida) inferred from the complete small subunit ribosomal RNA gene sequence

Fig. 1 The neighbor-joining tree of aquatic trypanosomes constructed from complete small subunit ribosomal RNA (SSrRNA) sequences indicating the systematic position of T. ophiocephali and phylogenetic relationships among the aquatic trypanosomes whose sequences are available. T. lewisi, T. theileri, and T. avium are taken as the outgroup. Bootstrap values are shown for the maximum parsimony/neighborjoining/Bayes analyses

Fig. 5 in First molecular identification of Vorticella sp. from freshwater shrimps in Tainan, Taiwan

Fig. 5. Bayesian phylogenetic tree of Vorticella sp. constructed from the nuclear ITS1-5.8S-ITS2 sequences. Sequences investigated in this study is in bold. Numbers numbers given at nodes of branches are the posterior probability (BI) and bootstrap (ML) values. The scale bar corresponds to 10 substitutions per 100 nucleotide positions. Classification follows that of Lynn (2008).

Fig. 2 in First molecular identification of Vorticella sp. from freshwater shrimps in Tainan, Taiwan

Fig. 2. Vorticella aequilata-like pop TW infected freshwater shrimps (Neocaridina Denticulata). (st) stalk. (sc) scopula. (FV) food vacuole. Scale bar: A = 500 μm; B- D = 100 μm.

Fig. 4 in First molecular identification of Vorticella sp. from freshwater shrimps in Tainan, Taiwan

Fig. 4. Bayesian phylogenetic tree of peritrich ciliates constructed from the nuclear ITS1-5.8S-ITS2 sequences. Sequence investigated in this study is in bold. Numbers given at nodes of branches are the posterior probability (BI) and bootstrap (ML) values. The scale bar corresponds to 10 substitutions per 100 nucleotide positions. Classification follows that of Lynn (2008).

Fig. 3 in First molecular identification of Vorticella sp. from freshwater shrimps in Tainan, Taiwan

Fig. 3. Scutariella sp. infected freshwater shrimps (Neocaridina Denticulata). (b) brain. (e) eye. (m) mouth. (p) pharynx. (t) testis. (te) tentacle. (vg) vitelline glands. Scale bar: A = 500 μm; B, D = 200 μm; C = 100 μm.

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Fig. 1. A in Faunistic survey on freshwater annelids from Korea

Fig. 1. A. Ventral chaetae of Paranais orientalis. B. A dorsal chaetal bundle of Prisitna breviseta. C. Ventral chaetae of P. forelii. D. A dorsal chaetal bundle of P. synclites. E. Ventral chaetae of Aulodrilus pluriseta. F. Dorsal chaetae of A. pluriseta. G. A penial sheath of Limnodrilus maumeensis. H. Chaetae of L. amblysetus. I. A dorsal chaetal bundle of Tubifex ignota. J. Dorsal chaetae of Psammoryctides albicola. K. Spermathecal chaetae of Varichaetadrilus vestibulatus. L. Ventral chaetae of Tasserkidrilus cf. acapillatus. Scale bars = AD, G, K, L = 10 μm, E, F = 20 μm, H-J = 1 μm.

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Fig. 2 in A report of 28 unrecorded bacterial species in Korea, isolated from freshwater and sediment of the Han River watershed in 2020

Fig. 2. Transmission electron micrographs of cells of the strains isolated in this study. Strains: 1, IMCC33701 (0.2 μm); 2, IMCC33702 (0.5 μm); 3, IMCC33703 (0.2 μm); 4, IMCC33707 (0.2 μm); 5, IMCC33708 (200 nm); 6, IMCC30636 (0.2 μm); 7, IMCC33714 (0.5 μm); 8, IMCC33715 (0.2 μm); 9, IMCC34758 (0.2 μm); 10, IMCC34759 (0.2 μm); 11, IMCC34760 (0.5 μm); 12, IMCC34761 (0.2 μm); 13, IMCC34762 (1.0 μm); 14, IMCC34764 (0.2 μm); 15, IMCC34765 (1.0 μm); 16, IMCC34766 (0.5 μm); 17, IMCC34767 (0.2 μm); 18, IMCC34768 (0.5 μm); 19, IMCC34782 (0.5 μm); 20, IMCC34783 (0.2 μm); 21, IMCC34782 (0.5 μm); 22, IMCC34785 (0.5 μm); 23, IMCC34786 (0.2 μm); 24, IMCC34787 (0.2 μm); 25, IMCC34788 (0.2 μm); 26, IMCC34789 (0.5 μm); 27, IMCC34790 (0.5 μm); 28, IMCC34769 (0.2 μm). Scale bars are indicated in parenthesis after strain ID.

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Fig. 1 in A report of 28 unrecorded bacterial species in Korea, isolated from freshwater and sediment of the Han River watershed in 2020

Fig. 1. Neighbor-joining phylogenetic tree based on 16S rRNA gene sequences showing the relationship between the strains isolated in this study and their closest bacterial species. Bootstrap values over 70% are shown at nodes for neighbor-joining, maximum parsimony, and maximum likelihood methods, respectively. Filled circles indicate that the corresponding node was also recovered in the trees reconstructed with both the maximum parsimony and maximum likelihood algorithms, while open circles indicate that the corresponding node was recovered in the tree generated with only one of these algorithms. Scale bar = 0.02 substitutions per nucleotide position.

Fig. 1. A in New record of the cold freshwater dinoflagellate Palatinus apiculatus (Dinophyceae) from the Paldang Reservoir, Korea

Fig. 1. A map of the Paldang Reservoir, Korea. A black circle represents the sampling site. Black arrows represent direction of water flow.

Fig. 3 in New record of the cold freshwater dinoflagellate Palatinus apiculatus (Dinophyceae) from the Paldang Reservoir, Korea

Fig. 3. Scanning electron microscrope micrographs of Palatinus apiculatus isolated from the Paldang Reservoir, Korea. Plates of the theca are indicated, following to Kofoidian plate formula. A: ventral view showing sulcal region; B, C: apical view from the ventral side; D-F: dorsal view showing different wide of suture and variation of the cingular plate (v). Thick black bar in D-F represents each given length. Sa: anterior sulcal plate. Sd: right sulcal plate. Sp: posterior sulcal plate. Ss: left sulcal plate. Scale bar = 10 μm.

Fig. 2 in New record of the cold freshwater dinoflagellate Palatinus apiculatus (Dinophyceae) from the Paldang Reservoir, Korea

Fig. 2. Vegetative cells (A, C) and temporary cysts (B, D) of the Korean Palatinus apiculatus isolated from the Paldang Reservoir. An arrowhead represents an eyespot. Cell size is proportional to a given scale bar (10 μm).

Fig. 4. A maximum likelihood tree constructed from a 28S in New record of the cold freshwater dinoflagellate Palatinus apiculatus (Dinophyceae) from the Paldang Reservoir, Korea

Fig. 4. A maximum likelihood tree constructed from a 28S rDNA dataset of the Korean Palatinus apiculatus and other freshwater dinoflagellates. A total of 5,000 replicates were run for bootstrap analyses. Members of the genus Palatinus are highlighted in orange. The isolate from this study and its GenBank No. are given in bold font.

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Fig. 9 in A new piece in the puzzle for the riverine slugs of the Acochlidiidae (Gastropoda: Panpulmonata: Acochlidimorpha) helps tracing steps of their freshwater invasion

Fig. 9 Scanning electron microscopical images of cuticular hard parts of copulatory organ of Wallacellia siputbiru n. gen. n. sp. (holotype) and 3D reconstructions in situ (paratype). A Isolated cuticular thorn of grappling organ tip (apical row). B Two articulated thorns of upper (top, long base) and lower row (below, short base) of grappling organ tip. C Three isolated spines of grappling organ base. D Cuticular "comb" from the penis. D′ Detail of spinelets on cuticular comb. E Reconstructions of each group of cuticular elements in situ, individual plane views. Basal finger and penial stylets not observed in SEM. Abbreviations: co, cuticular comb of penis; sp, group of spines on base of grappling organ; st, stylet of basal finger; pst, retracted and partially enrolled penial stylet; th1, row of thorns of basal row; th2, row of thorns of apical row. Scale bars: (A, B, C, D′) 20 μm, E 100 μm

Fig. 1 in A report of nine unrecorded bacterial species in the phylum Bacteroidetes collected from freshwater environments in Korea

Fig. 1. Transmission electron micrographs of the strains isolated in this study. Strains: A, SJ-153; B, SS1-37; C, BK-550; D, KS1-10; E, SJ- 361; F, ES1-03; G, BK-168; H, 04KS1-21; I, SJ-175. Bar: 0.2 μm (A-G), 0.5 μm (H and I).

Fig. 2 in A report of nine unrecorded bacterial species in the phylum Bacteroidetes collected from freshwater environments in Korea

Fig. 2. Neighbor-joining phylogenetic tree, based on 16S rRNA gene sequences, showing the relationships among the isolates and related taxa in the order Flavobacteriales. The values above each branch indicate the percentage levels of bootstrap support based on 1,000 resamplings (NJ/MP/ML). The closed circles indicate that the corresponding nodes were recovered by all treeing algorithms (NJ, MP and ML). Bar, 0.02 changes per nucleotide position.

Fig. 9 in Freshwater bryozoans of Korea-observations on living colonies and three new records

Fig. 9. Plumatella rugosa Wood, Wood, Geimer and Massard, 1988. A, Colony (white arrow); B, Dorsal view, flatoblast; C, Ventral view, flatoblast; D, Enlarged view of the annulus and fenestra in C. Scale bars: B, C = 100 μm, D = 30 μm.

Fig. 8 in Freshwater bryozoans of Korea-observations on living colonies and three new records

Fig. 8. Plumatella repens (Linnaeus, 1758). A, Ventral, flatoblast; B, C, Enlarged view of the annulus and fenestra in A; D, Annulus. Scale bars: A = 100 μm, B = 50 μm, C, D = 10 μm.

Fig. 7. Plumatella reticulata Wood 1988. A in Freshwater bryozoans of Korea-observations on living colonies and three new records

Fig. 7. Plumatella reticulata Wood 1988. A, Sessoblasts; B, Reticulated irregular ridges on the frontal fenestra of A; C, Annulus; D, Lateral wall, sessoblast. Scale bars: A = 100 μm, B, C = 50 μm, D = 30 μm.

Fig. 4 in Freshwater bryozoans of Korea-observations on living colonies and three new records

Fig. 4. Hyalinella punctata (Hancock, 1850). A, Habitat, paddlewheel (white arrows: colonies); B, Tentacles; C, Floatoblast, young floatoblast in zooid. Scale bars: A = 2 cm, B = 500 μm, C = 300 μm.

Fig. 5. Plumatella casmiana Oka, 1907. A in Freshwater bryozoans of Korea-observations on living colonies and three new records

Fig. 5. Plumatella casmiana Oka, 1907. A, Colony (white arrow); B, Leptoblast; C, Dorsal view, Sessoblast; D, Lateral view, sessoblast. Scale bars: A= 2 mm, B-D = 100 μm.