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AuthorsM. Faasse, H. de Blauwe
TitleFaunistisch overzicht van de mariene mosdiertjes van Nederland (Bryozoa: Stenolaemata, Gymnolaemata)
JournalNederlandse Faunistische Mededelingen
KeywordsBryozoa; Stenolaemata; Gymnolaemata; Nederland; Verspreiding; Marien
AbstractFaunistic survey of the marine bryozoans of the Netherlands (Bryozoa: Stenolaemata,
Older literature on marine bryozoans of the Netherlands often doesn’t distinguish between
records of colonies washed ashore and autochthonous records. The first reliable review of
autochthonous records was published by Heerebout (1970), the second and last by Mulder
(1983). The present review is mainly based on data from a short regional survey. Forty-three
brackish water and marine bryozoan species are now definitely known to occur in the
Netherlands. Most of them are characteristic of sheltered, estuarine and brackish waters. The
virtual absence of rocky and coarse grounds offshore is reflected in the fauna. Cyclostomatida
and Cheilostomatida are scarce, whereas Ctenostomatida are relatively well represented. This has
been pointed out already by Lacourt (1949), whose data included species washed ashore as well.
Hard substrates in the Netherlands are almost completely anthropogenic in origin and on the
open coast extend into the very shallow sublittoral only. Another reason for the scarcity of pure
marine species may be the extremes in watertemperature in Dutch waters. Evidently both
reasons are interconnected.
Document typearticle
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