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169 results for “Epibiont”
Figure 23 in Epibiontic communities on the freshwater shrimp Caridina ensifera (Crustacea, Decapoda, Atyidae) from Lake Poso (Sulawesi, Indonesia)
Figure 23. Distribution of each epibiont species (mean densities) and total mean density of epibionts, along the anterioposterior axis of Caridina ensifera. Anatomical units are considered in five groups.
Figures 3–10 in Epibiontic communities on the freshwater shrimp Caridina ensifera (Crustacea, Decapoda, Atyidae) from Lake Poso (Sulawesi, Indonesia)
Figures 3–10. (3, 4) Acineta sulawesiensis (silver carbonate, ×1070): (3) the macronucleus and the anterior prolongation of the lorica; (4) the actinophores with the tentacles. (5) Podophrya maupasi (methyl green, ×792). (6–9) Spelaeophrya polypoides: (6) individual showing the basal disc, the tentacles and the pore of the contractile vacuole (arrow) (SEM, ×280); (7) several specimens in their location on the basibiont surface (SEM, ×230); (8) a specimen showing the elongate macronucleus (silver carbonate, ×450); (9) the macronucleus irregular and the inferior part articulate of the body (silver carbonate, ×360). (10) Zoothamnium intermedium, a colony showing the stalk and the shape of the zooids (silver carbonate, ×420).
Figure 22 in Epibiontic communities on the freshwater shrimp Caridina ensifera (Crustacea, Decapoda, Atyidae) from Lake Poso (Sulawesi, Indonesia)
Figure 22. Dendrogram of the Hierarchical Cluster Analysis (epibiont species) performed using the mean densities of epibionts on the different anatomical units of the shrimps analysed (metric distance: City Block (Manhattan); method: Ward).
FIG. 2 in Fossil sponge gemmules, epibionts of Carpopenaeus garassinoi n. sp. (Crustacea, Decapoda) from the Sahel Alma Lagerstätte (Late Cretaceous, Lebanon)
FIG. 2. — Sponge gemmules on the rostrum of the shrimp Carpopenaeus garassinoi Charbonnier n. sp. under UV light: A, general view of the shrimp, note the white color of the epibionts; B, general view of the rostrum; C, detail of the proximal part of the rostrum showing isolated gemmules or linked gemmules forming a network. Scale bars: A, 2 cm; B, C, 1 mm.
FIG. 6 in Middle Devonian Calceola sandalina (Linnaeus, 1771) (Anthozoa, Rugosa) from Moravia (Czech Republic): aspects of functional morphology, gerontic growth patterns, and epibionts
FIG. 6. — Calceola sandalina (Linnaeus, 1771), all specimens are whitened with ammonium chloride prior the photographing except the thin sections; A, B, specimen ICh 3483, Chlupáč collection, Czech Geological Survey, Eifelian, Petrovice, latex cast; A, calicinal view; B, "ventral" view; C-E, three specimens ICh 3482 A-C, same collection and locality, steinkerns of opercula; F-I, specimen 29, Strnad collection, Silesian Museum Opava (figured in Strnad 1960: figs 1, 2); Eifelian, Horní Benešov; F, "dorsal" view; G, "ventral" view; H, lateral view; I, calicinal view; J, specimen 2/13 (13SL), Givetian, Čelechovice, SL, adult specimen with operculum in situ; K; specimen 107, unknown locality in Čelechovice (Givetian), juvenile operculum; L-N, specimen AG 932 A-C, coll. Galle, Geological Institute Academy of Science, unknown locality in Čelechovice (Givetian); L, transverse section nearer to calice; M, transverse section nearer to apex, senile closing of the calice is visible; N, longitudinal section through counter-cardinal plane; free spaces under the tabulae or tabellae; O, specimen AG 1436 C, coll. Galle, Geological Institute Academy of Science (figured in Galle 1995: pl. 4, figs 1-3); Borehole KDH-9, vicinity of Konice, close to Eifelian/Givetian boundary; transverse section through deformed specimen. Abbreviations: RL, Růžičkův lom Quarry; SL, Státní lom Quarry. Photos by Mrs. Hana Vršt'alová, thin sections by Mrs. Dana Hejdová (Central Geological Survey, Prague). Scale bars: A-J, L-O, 10 mm; K, 1 mm.
FIG. 2 in Middle Devonian Calceola sandalina (Linnaeus, 1771) (Anthozoa, Rugosa) from Moravia (Czech Republic): aspects of functional morphology, gerontic growth patterns, and epibionts
FIG. 2. — Corallite growth of adult (15SL, 19SL, 9SL, 17SL) and gerontic (1RL, 2RL, 5RL, 16SL) specimens expressed as L/W ratio (L and W in mm), Čelechovice, note width decrease on the curve of the specimen 15SL (= rejuvenation, see Fig. 5E-H). For further explanations see Fig. 1. Abbreviations: RL, Růžičkův lom Quarry; SL, Státní lom Quarry.
FIG. 1 in Middle Devonian Calceola sandalina (Linnaeus, 1771) (Anthozoa, Rugosa) from Moravia (Czech Republic): aspects of functional morphology, gerontic growth patterns, and epibionts
FIG. 1. — Corallite growth of juvenile specimens (20, 21, 24, 28, 103SL) expressed as L/W ratio (L and W in mm), Čelechovice, measurements begin 1 mm after the preserved apex of the corallite; this caused the beginnings of respective lines at various widths. Abbreviation: SL, Státní lom Quarry.
FIG. 3 in Middle Devonian Calceola sandalina (Linnaeus, 1771) (Anthozoa, Rugosa) from Moravia (Czech Republic): aspects of functional morphology, gerontic growth patterns, and epibionts
FIG. 3. — Freeing of Calceola out of the sediment; A, coral deep in sediment; B, center of gravity shifts forward and calice moves downward by opening the operculum, apex moves upward and sediment particles pour under apical part; C, operculum close, center of gravity shifts backward, calice moves upward and sediment particles pour under calicinal part. Animal moved upward.
Fig. 1 in Turtle cleaners: reef fishes foraging on epibionts of sea turtles in the tropical Southwestern Atlantic, with a summary of this association type
Fig. 1. Reef fishes cleaning sea turtles' hard and soft parts in the Southwestern Atlantic. A porkfish (Anisotremus virginicus) and a group of blue tangs (Acanthurus coeruleus) feed on epibionts on the shell of a moving hawksbill turtle (Eretmochelys imbricata); a barely visible doctorfish (Acanthurus chirurgus) nibbles at the posterior portion of the turtle's shell, and two blue tangs nibble at the left hind limb (a). Photo by M. Granville. One Zelinda's parrotfish (Scarus zelindae) and three blue tangs feed on algae growth on the shell of a male loggerhead turtle (Caretta caretta) near a shipwreck; two Spanish hogfishes (Bodianus rufus) also inspect the turtle (b). Photo by Z. Matheus. Four Spanish hogfish inspect and forage on epibionts on the shell of the same loggerhead turtle; one blue tang and one Zelinda's parrotfish also "escort" the slowly moving turtle (c). Photo by Z. Matheus. A green turtle (Chelonia mydas) remain motionless on the bottom, while a Brazilian blenny (Ophioblennius trinitatis) forages on algae growth on the left lateral portion of the shell; a few smallmouth grunts (Haemulon chrysargyreum) also capitalize upon this situation, and nibble at the turtle's shell (d). Photo by C. Sazima. A sergeant major (Abudefduf saxatilis) nibbles at an algae patch on the anterior part of the shell of a posing and hovering green turtle (e). Photo by Z. Matheus. The herbivorous Rocas damselfish (Stegastes rocasensis) nibbles at the right hind limb of a green turtle posing near algae turfs tended by this damselfish (f). Photo by Z. Matheus.
Text-fig. 4. Taphonomic features of the studied localities of ammonoids. a: Sandstone slab with fragmentary remains of productid and spiriferid brachiopods, orthocerids, coiled nautiloids and ammonoids (stratigraphic level No. 3). b: Shell debris cluster and fragment of crushed ammonoid conch (stratigraphic level No. 1). c: Epibionts on the surface of an ammonoid conch (stratigraphic level No. 5). d: Cluster of bivalves, gastropods and cephalopods remains in a siderite nodule (stratigraphic level No. 5). e: Fragment of an ammonoid conch (stratigraphic level No. 3). f: Fragment of an ammonoid conch (?) with terminal aperture and brachiopod valve (stratigraphic level No. 3). g: Specimen of?Anthracoceratites sp. with conch injuries (shown by arrows) (stratigraphic level No. 8). h, i: Bioerosion trace fossils Cyclopuncta girtyi ELIAS, 1958 on the fragments of cephalopod conchs (stratigraphic level No. 5). j: Limonitized conchs of the ammonoid (stratigraphic level No. 7). k: Fragment of an ammonoid conch (stratigraphic level No. 5). Scale bars 10 mm. in Late Bashkirian Ammonoids From The Mospyne Formation Of The Donets Basin, Ukraine
Text-fig. 4. Taphonomic features of the studied localities of ammonoids. a: Sandstone slab with fragmentary remains of productid and spiriferid brachiopods, orthocerids, coiled nautiloids and ammonoids (stratigraphic level No. 3). b: Shell debris cluster and fragment of crushed ammonoid conch (stratigraphic level No. 1). c: Epibionts on the surface of an ammonoid conch (stratigraphic level No. 5). d: Cluster of bivalves, gastropods and cephalopods remains in a siderite nodule (stratigraphic level No. 5). e: Fragment of an ammonoid conch (stratigraphic level No. 3). f: Fragment of an ammonoid conch (?) with terminal aperture and brachiopod valve (stratigraphic level No. 3). g: Specimen of?Anthracoceratites sp. with conch injuries (shown by arrows) (stratigraphic level No. 8). h, i: Bioerosion trace fossils Cyclopuncta girtyi ELIAS, 1958 on the fragments of cephalopod conchs (stratigraphic level No. 5). j: Limonitized conchs of the ammonoid (stratigraphic level No. 7). k: Fragment of an ammonoid conch (stratigraphic level No. 5). Scale bars 10 mm.
A review of epibiont hydrozoans on Sargassum
<p>The database collects information on hydroid epibionts of Sargassum records worldwide from 1802 to 2020.</p>
Figure 2. A in First records of ciliate suctorian epibionts onHydraena (Coleoptera) from South Korea
Figure 2. A photograph of Periacineta hydrochi (Matthes, 1954), from Hydraena sp. B-E Urnula turpissima Kormos, 1958 (C-E after Kormos 1958): B photograph of specimen attached on Periacineta hydrochi, from South Korea; C trophont, lateral view;D trophont, top view;E swarmer (after Kormos, 1958). Scale bar = 20µm (A-B).
Figure 1.A in First records of ciliate suctorian epibionts onHydraena (Coleoptera) from South Korea
Figure 1.A Map of South Korea with marked sampling locality (river at the road to Sobaeksan NP).B Photograph of sampling locality. Photo. V. Pešić
Fig. 7 in Epibionts on upper Eifelian crinoid columnals from the Holy Cross Mountains, Poland
Fig. 7. Frequency distribution of epibionts on the crinoid host species from the Skały Beds (upper part of complex XVII, Tortodus kockelianus Zone), Skały village, Holy Cross Mountains; e, number of epibionts; h, number of hosts.
Fig. 3 in Epibionts on upper Eifelian crinoid columnals from the Holy Cross Mountains, Poland
Fig. 3. Epibionts on crinoids from the Skały Beds (upper part of complex XVII, Tortodus kockelianus Zone), Skały village, Holy Cross Mountains. A, B. Rhomboporid? bryozoan bases on Schyschcatocrinus creber Dubatolova, 1975; perpendicular orientation of the zoaria to the axis of stalk may indicate that the host was dead during epibiont growth. A. Regularly developed base, GIUS−4−2445/58. B. Root−like base, GIUS−4−2445/59. C–H. "Ctenostome bryozoans" encrusting nearly the entire circumference of columnals that may indicate that the stalks were upright when fouled. C. Eliasopora stellata (Nicholson and Etheridge, 1877) on Tantalocrinus scutellus Le Menn, 1985, GIUS−4−2445/27. D. "Ropalonaria" givetiana Kiepura, 1965 on Schyschcatocrinus creber Dubatolova, 1975; arrows indicate small borings of Trypanites?, GIUS−4−2445/31. E. Allonema moniliforme parvum Kiepura, 1965 on Tantalocrinus scutellus Le Menn, 1985, GIUS−4−2445/15. F. Ascodictyon vinelliforme Kiepura, 1965 on Pentagonostipes petaloides Moore and Jeffords, 1968, GIUS−4−2445/21. G. Ascodictyon sparsiforme Kiepura, 1965 (white arrows) and Vinella sp. (black arrow) on Cycloocetocrinus sp., GIUS−4−2445/17. H. Vinella sp. on Cycloocetocrinus sp., GIUS−4−2445/34. Scale bars 1 mm.
Fig. 4 in Epibionts on upper Eifelian crinoid columnals from the Holy Cross Mountains, Poland
Fig. 4. Epibionts on crinoids from the Skały Beds (upper part of complex XVII, Tortodus kockelianus Zone), Skały village, Holy Cross Mountains. A. Cystoporate bryozoan Fistulipora sp. on Schyschcatocrinus creber Dubatolova, 1975; growth around the entire stem circumference may indicate that the host was alive, GIUS−4−2445/53. B–E. Cystoporate bryozoan Eridopora orbiculata (Kiepura, 1973) on Pentagonostipes petaloides Moore and Jeffords, 1968 (B–D) and Tantalocrinus scutellus Le Menn, 1985 (E). B. Growth around the entire stem circumference may indicate that the host was alive, GIUS−4−2445/45. C. Growth on one side of the stem may indicate that the host was dead, GIUS−4−2445/46. D. Arrow indicates small "ctenostome bryozoan" Ascodictyon vinelliforme Kiepura, 1965, GIUS−4−2445/47. E. Arrow indicates damaged and regenerated part of the stem, GIUS−4−2445/48. F–H. "Cyclostome bryozoan" Hederella sp. on Tantalocrinus scutellus Le Menn, 1985 (F) and Pentagonostipes petaloides Moore and Jeffords, 1968 (G, H); zoaria occupying a significant part of the columnals circumference may indicate that they lived on the upright stalks. F. Zoarium on well ornamented, circular pluricolumnal, GIUS−4−2445/37. G. Zoarium on angularly pentagonal pluricolumnal, GIUS−4−2445/38. H. Zoarium on subpentagonal pluricolumnal, GIUS−4−2445/39. Scale bars 1 mm.
Fig. 2 in Epibionts on upper Eifelian crinoid columnals from the Holy Cross Mountains, Poland
Fig. 2. Epibionts on crinoids from the Skały Beds (upper part of complex XVII, Tortodus kockelianus Zone), Skały village, Holy Cross Mountains. A. Saccamminid foraminiferans on Gilbertsocrinus vetulus Moore and Jeffords, 1968, GIUS−4−2445/3. B, C. Schyschcatocrinus creber Dubatolova, 1975 malformed by attachment of the brachiopod Poloniproductus? sp.; stereomic overgrowth indicates that the host was alive when fouled. B. Root appendage, GIUS−4−2445/11. C. Stem fragment, GIUS−4−2445/12. D. Cyrtinitid brachiopod on Tantalocrinus scutellus Le Menn, 1985, GIUS−4−2445/14. E, F. Rugose coral Adradosia? sp. on Schyschcatocrinus creber Dubatolova, 1975; stereomic response indicates that both epibionts and the hosts were alive contemporaneously. E. Arrows indicate later attachment of juvenile crinoids (holdfasts), GIUS−4−2445/4. F. Cluster of three individuals; note significant stereomic overgrowth (F1) and complete boreholes (Trypanites?) on coral on opposite side of pluricolumnal (F2), GIUS−4−2445/5. G. Tabulate coral Favosites sp. on Tantalocrinus scutellus Le Menn, 1985; oblique orientation of the coral may indicate that the crinoid stalk was upright during epibiont growth, GIUS−4−2445/9. Scale bars 1 mm.
Fig. 1 in Epibionts on upper Eifelian crinoid columnals from the Holy Cross Mountains, Poland
Fig. 1. Geological map of western part of the Holy Cross Mountains and location of study site. Simplified after Marynowski et. al. (2000).
Data from: Oyster aquaculture impacts Zostera marina epibiont community composition in Akkeshi-ko estuary, Japan
Coastal fisheries are in decline worldwide, and aquaculture has become an increasingly popular way to meet seafood demand. While finfish aquaculture can have substantial adverse effects on coastal ecosystems due mostly to necessary feed inputs, bivalves graze on natural phytoplankton and are often considered for their positive ecosystem services. We conducted two independent studies to investigate the effects of long-line Crassostrea gigas oyster aquaculture on Zostera marina seagrass beds and associated epibiont communities in Akkeshi-ko estuary, Japan. Results from both studies yielded no evidence of an effect of oyster aquaculture on the morphology, density, or biomass of Z. marina, but significant differences were apparent in the epibiont community. Reference seagrass beds located away from aquaculture had higher seagrass epiphyte loads and higher abundances of amphipods. Conversely, seagrass beds below aquaculture lines had higher sessile polychaete biomass and higher isopod abundances. Our results suggest that the presence of oyster aquaculture may have indirect effects on seagrass by changing epibiont community composition and relative abundances of species. One proposed mechanism is that cultured oysters feed on epiphytic diatoms and epiphyte propagules before they can settle on the seagrass, which reduces epiphyte loads and influences subsequent faunal settlement. If carefully implemented and monitored, long-line oyster aquaculture may be a sustainable option to consider as bivalve aquaculture expands to meet global seafood demand, but further work is needed to fully assess and generalize the community-level effects on seagrass epibionts.
Figure 10. Vorticella, a in Protozoan ciliate epibionts on the freshwater shrimp Caridina (Crustacea, Decapoda, Atyidae) from the Malili lake system on Sulawesi (Indonesia)
Figure 10. Vorticella, a specimen and its stalk.
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