Biemna variantia   (Bowerbank, 1858)

Saucer-shaped horny sponge
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Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Demospongiae | Poecilosclerida | Desmacellidae

Environment: milieu / climate zone / depth range / distribution range Ecology

Sessile; depth range 401 - 457 m (Ref. 120910).  Polar

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Arctic and Northern Atlantic: Canada and Germany. Temperate to polar.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 15.0 cm H male/unsexed; (Ref. 123752)

Biology     Glossary (e.g. epibenthic)

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Members of the class Demospongiae are hermaphroditic. Life cycle: The zygote develops into parenchymella larva (free-swimming) before settling down on a substrate where it grows into a young sponge.

Main reference References | Coordinator | Collaborators

Harms, J. 1993. (Ref. 2711)

IUCN Red List Status (Ref. 130435: Version 2024-1)

  Not Evaluated 

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses


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Tools

E-book | Field guide

More information

Trophic Ecology
Food items
Diet
Food consumption
Ration
Predators
Ecology
Ecology
Home ranges
Population dynamics
Growth
Age/Size
Length-weight
Length-length
Length-frequencies
Mass conversion
Recruitment
Abundance
Life cycle
Reproduction
Maturity
Fecundity
Spawning
Eggs
Egg development
Larvae
Larval dynamics
Distribution
Countries
FAO areas
Ecosystems
Occurrences
Introductions
Human Related
Aquaculture profile
Stamps, Coins Misc.
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Collaborators
Taxonomy
Common names
Synonyms
Morphology
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References
References

Internet sources

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | Fishipedia | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Tree of Life | Wikipedia (Go, Search) | Zoological Record

Estimates based on models

Vulnerability (Ref. 71543): Low vulnerability (10 of 100).
Price category (Ref. 80766): Unknown.

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