EN

krystalltyllskinn

Scytinostromella heterogenea

Unknown

Overview

Krystalltyllskinn (Scytinostromella heterogenea) is a distinctive marine bryozoan characterized by its translucent, crystalline-like colonial structure that forms delicate branching patterns on rocky substrates. The species displays remarkable morphological variation across its range, with colonies exhibiting different growth forms and zooid arrangements that give it its 'heterogenea' designation. As a filter-feeder, it plays a crucial role in marine ecosystems by processing plankton and contributing to benthic community structure.

The species faces severe pressure from ocean acidification, which compromises its ability to maintain its calcium carbonate skeletal structure essential for colony integrity. Coastal development and increased sedimentation from terrestrial runoff are degrading the clear, low-turbidity waters this species requires for optimal feeding and growth.

Threat summary

Habitat

Krystalltyllskinn inhabits shallow subtidal rocky reefs and kelp forest understories at depths of 5-25 meters, where it colonizes vertical rock faces and the bases of large algae. The species requires areas with moderate to strong water flow and minimal sedimentation, typically found along exposed coastlines with high water clarity.

TERRESTRIAL· major

Frequently asked questions

Why is krystalltyllskinn classified as Endangered?
krystalltyllskinn is classified as Endangered — facing a very high risk of extinction in the wild — because population numbers are declining steeply and key habitats are under sustained pressure. The species faces severe pressure from ocean acidification, which compromises its ability to maintain its calcium carbonate skeletal structure essential for colony integrity. Coastal development and increased sedimentation from terrestrial runoff are degrading the clear, low-turbidity waters this species requires for optimal feeding and growth.
Where does krystalltyllskinn live?
krystalltyllskinn occurs in across multiple regions. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to krystalltyllskinn?
The main threats to krystalltyllskinn are habitat loss and human disturbance. The full IUCN-classified threat record for this species is detailed on the species page.

Get weekly conservation intelligence

One short digest a week of the most striking species and country data we ship, plus breaking conservation news paired with our database where it matters.

Free, no spam. One-click unsubscribe in every email.