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The roundworm, Contracaecum rudolphii, is a parasitic nematode belonging to the family Anisakidae. Fish are by far the main source of infection as they serve as intermediate host of the nematodes. The final hosts are marine mammals (e.g. seals) or piscivorous birds (e.g. cormorants and pelicans). Identification of these nematodes is important in terms of seafood safety and public health, as humans may be infected following consumption of infected seafood. Coloured scanning electron micrograph (SEM), magnified x27 when printed at 10cm wide.
Red tailed catfish
latimeria fish isolated on the black background
Fossil tooth of a predator fish lived in the jurrasic period. The fossil was found in the canton of aargau inside some limeatone.
A slowly moving giant stag beetle
Earthworm in the dirt
Leeches on a white background
New Zealand Longfin Eel (Anguilla dieffenbachii) on the banks of a river in summer.
An illustration of a group of extinct Trilobites scavenging on a seafloor 420 million years ago.
Xiphister atropurpureus, Black Prickleback. A small fish found in tidepools and intertidal zone. A ray-finned fish. Family Stichaeidae.
Cayenne caecilian,Typhlonectes compressicauda
an eel searches for food on the Los Llanos region of Colombia
Dipterus from the Devonian era 3D illustration
Tiny caterpillars
Catfish isolated on a white background
Dead centipedes or chilopods lying on the floor due to flooding
The study of Tapeworm infection is caused by ingesting food or water contaminated with tapeworm eggs or larvae in laboratory.
With transparent wings, a caddisfly perches on granite boulder along the South Platte River in Waterton Canyon, Littleton, Colorado.
Small fish in hand
Rainbow trout under water at the Table Rock fish hatchery branson - missouri,Missouri,USA
Whitmania pigra on white background
Olm, Proteus anguinus (human fish) in the subterranean waters of Karst region in Slovenia.
Weather loach (Misgurnus fossilis) on the background of a 5 mm measurement grid. Ichthyology research.
sturgeoniat
Top view of spiny goby fish isolated on white background, Pseudapocryptes elongatus
Shark
Tapeworm (Parasitic flatworm) of cattle and other grazing animals under the microscope for education.
Fishes in big aquarium: a spooky wolf fish with open mouth and broken teeth
Medicinal Leech-hirudo medicinalis
Ligia occidentalis is a species of rock slater in the family Ligiidae. Habitat generalist of rocky shores. Baja California Sur, Mexico.
Free Images: "bestof:Nectocaris 59660.jpg en Nectocaris pteryx from the Burgess Shale 2012-03-23 14 32 04 http //datadryad org/resource/doi 10 5061/dryad 7m6kg/3 Martin R Smith"
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