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Marine Rotifera

Last updated over 1 year ago

Rotifera represents a phylum of about 2000 species of microscopic aquatic animals, whose length ranges between 80 and 1000 μm. Marine rotifers occur in both plankton and benthos, where they may significantly contribute to the total biomass, and play a key role in the energy transfer process. According to a recent review, in saltwater habitats there are 443 rotifer taxa at either specific, subspecific and infrasubspecific rank, corresponding to 391 nominal species, which corresponds to about 20% of the known rotifer species. A total of 164 taxa or 37.0% (148 species) have been found in saltwater only and are considered stenohaline. Some other 173 taxa (39.1%) are reported from both fresh- and saltwater habitats and are considered truly euryhaline. At least 106 (23.9%) are known from freshwater habitats, and found in saltwater only occasionally and sparsely (‘haloxenous taxa’). This website will be the future home of Marine Rotifera where participants can edit and maintain their classification, upload images, maintain bibliographic resources, among other activities. Last indexed November 5, 2012

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    Marine Rotifera

    686 items; maintained by Francesca Leasi

  • 22717_88_88 Animalia > Notommatidae

    Cephalodella catellina

  • 58277_88_88 Animalia > Notommatidae

    Cephalodella marina

  • Habitat

    Cosmopolitan in fresh to brackish water, occasionally reported in coastal (marine)...

  • Distribution

    Balearic Archipelago, Spain (De Manuel et al. 1992); Maiorca (De Ridder...

  • Description

    Body short, stout, bulbous distally; abdomen laterally compressed; lorica flexible with...

  • Habitat

    In tidal pools.

  • Distribution

    Italy, Venice Lagoon (Pasquali 1940); Germany (Ahlrichs 2003), USA (Myers collection);...

  • Description

    Body moderately elongate, spindle-shaped, very slightly compressed laterally. Lorica very thin...

  • Distribution

    Norway, North Sea, Bergen (Lie-Pettersen, 1906), Germany, Baltic Sea, Kieler Bucht...

  • Size

    Total length 375-475 µm (1260 µm after Lie-Pettersen, 1906); toe 13-22...

  • Morphology

    Description of parthenogenetic female: body elongate, spindle-shaped in dorsal view, in...

  • Distribution

    Type locality: Oneida and Vilas counties, Wisconsin; around Atlantic City, New...

  • Trophic Strategy

    Food: ciliates, rotifers and nematodes.

  • Distribution

    Type locality: near Berlin, Germany. Cosmopolitan species....

  • Ecology

    This species lives in psammon, sand, coarse shell gravel and among...

  • Ecology

    Among vegetation in coastal water. Also reported (?) among Juncus in...

  • Ecology

    In psammon, in littoral sand and among Enteromorpha; salinity 60‰

  • Trophic Strategy

    Feed other rotifers (Proales, Encentrum).

  • Size

    Length 275-290 µm, toe 45-46 µm; trophi 33-38 µm: left ramus...

  • Life Cycle

    The rotifer usually enters the developing gametophore where it induces gall...

  • Ecology

    Parasitic in filaments of aquatic Vaucheria spp. and Dichotomosiphon tuberosus (Xanthophyta);...

  • Distribution

    Type locality: Near Dassau, Germany. Reported for Europe, N. America, Australia....

  • Associations

    Filaments of aquatic Vaucheria spp. and Dichotomosiphon tuberosus (Xanthophyta); also inVaucheria...

  • Morphology

    Juvenile female elongate, slender, later fusiform; when mature the body swells...

  • Ecology

    In mountain springs and littoral of alkaline stagnant and running fresh...

  • Distribution

    Type locality: Sandy beach near station of former Biological Institute, Helgoland,...

  • Distribution

    Type locality: No single locality specified, "from hermit crabs taken in...

  • Distribution

    Type Locality: In moss from pond Issalets, Bassin de Leman, Switzerland....

  • Distribution

    Type locality: Kieler Bucht, Baltic Sea, Germany; in thecae of hydroid...

  • Distribution

    Type locality: Shoal east from bird island Uthörn, Sylt, North Sea,...

  • Habitat

    In alkaline to slightly acid waters, in submerged mosses and among...

  • Ecology

    Perennial. Food: detritus, bacteria, algae, decomposing microcrustaceans and macroinvertebrates.

  • Morphology

    Body roughly cylindrical to fusifonn, elongate, slender; cuticle soft, flexible, outline...

  • Habitat

    In May 1993 a single specimen of P litoralis was found...

  • Morphology

    Body elongate, slender, fusiform in dorsal view, slightly bent ventrally in...

  • Morphology

    Body elongate, stout, fusiform in dorsal view, ventrally bent in lateral...

  • Trophic Strategy

    Food: dinoflagellates, small diatoms, bacteria.

  • Ecology

    Wide-spread in vegetation and sedimentation zone, rock pools, marine and brackish...

  • Morphology

    Body fusiform, elongate, slender; cuticle very flexible, outline variable; hyaline. Head...

  • Distribution

    Locus typicus: Q...

  • Habitat

    This species does occur in marine or brackish habitats.

  • Distribution

    LOCUS TYPICUS: Norway – Bukken Fjord Marine habitat: Rovigno - Adriatic...

  • Ecology

    Eurytopic.

  • Look Alikes

    Certainly often confused with juvenile A. vaga....

  • Trophic Strategy

    Notholca caudata eat phytoplankton.

  • Life Cycle

    Notholca spp. make up a large portion of the winter population...

  • Habitat

    Notholca spp. are cold stenotherms, living only within a limited range...

  • Distribution

    Notholca caudata occur in Sweden and Russia.

  • Distribution

    Locus typicus: Berlin Marine locations: Spain, France, Italy, Sweden, Finland, Norway,...