vs

Chrysochromulina acantha compared with Chrysochromulina mactra

Taxonomic Classification

Rank
Kingdom same	Chromista (色藻界)	Chromista (色藻界)
Phylum same	Haptophyta (定鞭藻門)	Haptophyta (定鞭藻門)
Class same	Prymnesiophyceae (普林藻纲)	Prymnesiophyceae (普林藻纲)
Order same	Prymnesiales (定鞭金藻目)	Prymnesiales (定鞭金藻目)
Family same	Chrysochromulinaceae	Chrysochromulinaceae
Genus same	Chrysochromulina	Chrysochromulina
Species	Chrysochromulina acantha	Chrysochromulina mactra

Evolutionary Relationship

and share a common ancestor at the Genus level: Chrysochromulina.

Conservation Status

NE — Not Evaluated

NE — Not Evaluated

Physical Characteristics

Attribute
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

Chrysochromulina acantha是一种单细胞定鞭藻，细胞表面覆有长刺状鳞片，外观独特。它栖息于温带和寒冷大洋水域的海洋浮游环境中。这种混合营养微藻既能进行光合作用，也能吞噬细菌获取补充营养。

Chrysochromulina mactra is a marine haptophyte microalga belonging to the genus Chrysochromulina, class Prymnesiophyceae. The epithet mactra, meaning kneading trough or trough-shaped vessel, describes a morphological feature of the organism — likely the shape of a scale element or cellular structure visible through electron microscopy. Within Chrysochromulina, fine-scale ultrastructural characters of the cell surface and appendages are the primary basis for species identification, making high-resolution electron microscopy essential for taxonomic work. C. mactra has been recorded from Norwegian coastal marine environments, a region that has historically served as a major source of newly described haptophyte species due to focused research programs and the ecological richness of Norwegian fjord and shelf waters. These environments are influenced by cold North Atlantic currents and seasonal nutrient dynamics that support productive phytoplankton communities in which nanoplankton species like C. mactra play significant roles. As a member of Prymnesiophyceae, the species possesses chloroplasts with chlorophylls a and c and fucoxanthin-type pigments, enabling photosynthetic carbon fixation. The coiling haptonema is a diagnostic feature of Chrysochromulina distinguishing it from related genera including Prymnesium and Haptolina. C. mactra has not been formally assessed under IUCN criteria and is listed as Not Evaluated. As with most marine nanoplankton, its population status and extinction risk cannot be meaningfully quantified with current survey methods.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden