Observations on Ephydatia fluviatilis
Position in the EOL taxonomic tree. Please click on the tree view below to access EOL (Encyclopedia of Life).
Ephydatia fluviatilis (Linnaeus, 1759)
Most likely ID: n.a.
Basionym: Spongia fluviatilis Linnaeus, 1759
Add’l Synonyms: NM
Sampling date 05/2011. Scale bar indicates 50 µm (3).
Three images. Tiny sponge grown on a microscope slide.
Please click on < or > on the image edges or on the dots at the bottom edge of the images to browse through the slides!
Place name: Creek in Oder valley 100 km north east of Berlin (Germany)
Latitude: 53.135032 Longitude: 14.348738
Microscope Zeiss Universal, camera Olympus C7070WZ. DOF image.
Scale bars indicate 50 µm (1), 25 µm (2, 4–6), 10 µm (3).
Six images. The coverslip print has disintegrated the sponge, making the amoeboid, totipotent cells visible. Totipotent means embryonic in the sense that each of these cells is capable of developing into a new sponge through successive mitotic divisions. Note that each cell has zoochlorellae!
Please click on < or > on the image edges or on the dots at the bottom edge of the images to browse through the slides!
Place name: Creek in Oder valley 100 km north east of Berlin (Germany)
Latitude: 53.135032 Longitude: 14.348738
Microscope Zeiss Universal, camera Olympus C7070WZ. DOF image.
Sampling date 03/2021. Scale bars indicate 100 µm (1), 25 µm (2, 3).
Three images.
| First: | Gemmula of Ephydatia fluviatilis. Most freshwater sponges produce gemmulae, globular bodies containing totipotent cells protected by a shell of the biopolymer spongin in order to survive unfavorable living conditions. |
| Second and third: | Close-up of the spongin layer of a gemmula. |
Please click on < or > on the image edges or on the dots at the bottom edge of the images to browse through the slides!
Place name: Historical Eider Canal Rathmannsdorf (Schleswig-Holstein, Germany)
Latitude: 54.38023557 Longitude: 10.07928818
Microscope Zeiss Axioplan, camera Olympus OM-D M5 MKII. DOF images.
Three images. The totipotent sponge cells from two gemmulae have built new tiny sponges.
Please click on < or > on the image edges or on the dots at the bottom edge of the images to browse through the slides!
Place name: Historical Eider Canal Rathmannsdorf (Schleswig-Holstein, Germany)
Latitude: 54.38023557 Longitude: 10.07928818
Microscope Zeiss Axioplan, camera Olympus OM-D M5 MKII. DOF images.
Three images, two in a slide changer.
The juvenile sponges have formed their first outlets for filtered water, oscula.
Please click on < or > on the image edges or on the dots at the bottom edge of the images to browse through the slides!
Place name: Historical Eider Canal Rathmannsdorf (Schleswig-Holstein, Germany)
Latitude: 54.38023557 Longitude: 10.07928818
Zeiss dissecting microscope SV6, camera Olympus OM-D M5 MKII. DOF images.
© Wolfgang Bettighofer,
images under Creative Commons License V 3.0 (CC BY-NC-SA).
For permission to use of (high resolution) images please contact postmaster@protisten.de.
New items
striolatum
teliferum
pseudopyramidatum
pyramidatum
scabrum
capitulum
forficulatum
oligacanthum
var. incisum
chlamydosporum
arcuatum
var. subavicula
truncata
var. quadrata
rubescens
venustum
var. excavatum
ralfsii
var. montanum
ralfsii
digitus
acerosum
intermedium
dissiliens
kuetzingii
ralfsii
var. hybridum
aureus
botrytis
quadratum
quadrum
crassa
digitus
var. lamellosum
digitus
var. latum
oblongum
interruptum
spec.
spec.
kinahanii
spec.
polymorphum
var. polymorphum
brebissonii
rotata
swartzii
antilopaeum
neosinuosum
thomasiana
var. notata
forficulatum
var. verrucosum
armatum
oblongum
rhomboidale
furcatum
uncinatum
hirsutum
cucurbitinum
minor
borreri
americana
coeseli
apiculata
simplicius
crassum
simonyi
var. sparsiaculeatum
caelatum
crux-melitensis
ehrenbergii
didelta
spongiosum
var. perbifidum
denticulata
dejectus
conspersum
papillifera
komarekii
arboricola
venustum
var. excavatum
pulchellum
tripus
subspicatus
convergens
nostochinearum
arcuata
grevillei
laevis
var. laevis
reticulatum
viridis
cystozygote
reinhardtii
lacustris
speculum
New items
striolatum
teliferum
pseudopyramidatum
pyramidatum
scabrum
capitulum
forficulatum
oligacanthum
var. incisum
chlamydosporum
arcuatum
var. subavicula
truncata
var. quadrata
rubescens
venustum
var. excavatum
ralfsii
var. montanum
ralfsii
digitus
acerosum
intermedium
dissiliens
kuetzingii
ralfsii
var. hybridum
aureus
botrytis
quadratum
quadrum
crassa
digitus
var. lamellosum
digitus
var. latum
oblongum
interruptum
spec.
spec.
kinahanii
spec.
polymorphum
var. polymorphum
brebissonii
rotata
swartzii
antilopaeum
neosinuosum
thomasiana
var. notata
forficulatum
var. verrucosum
armatum
oblongum
rhomboidale
furcatum
uncinatum
hirsutum
cucurbitinum
minor
borreri
americana
coeseli
apiculata
simplicius
crassum
simonyi
var. sparsiaculeatum
caelatum
crux-melitensis
ehrenbergii
didelta
spongiosum
var. perbifidum
denticulata
dejectus
conspersum
papillifera
komarekii
arboricola
venustum
var. excavatum
pulchellum
tripus
subspicatus
convergens
nostochinearum
arcuata
grevillei
laevis
var. laevis
reticulatum
viridis
cystozygote
reinhardtii
lacustris
speculum