Lessonia trabeculata

Lessonia trabeculata is a species of kelp, a brown alga in the genus Lessonia. It grows subtidally off the coasts of Peru and northern and central Chile, with the closely related Lessonia nigrescens tending to form a separate zone intertidally.

Lessonia trabeculata
Scientific classification
Kingdom: Chromista
Phylum: Ochrophyta
Class: Phaeophyceae
Order: Laminariales
Family: Lessoniaceae
Genus: Lessonia
Species:
L. trabeculata
Binomial name
Lessonia trabeculata
Villouta & Santelices, 1986[1]

Description

This kelp can grow to a length of 2.5 m (8 ft). It is distinguished from all other members of the genus by the presence of trabeculae (cross struts) in the hollow centres of the blades and stipes (stems), and by the massive and irregular holdfast by which the kelp is attached to the rocks.[2]

Distribution and habitat

Lessonia trabeculata occurs in the southeastern Pacific Ocean, in the subtidal zone off the coasts of Peru and northern and central Chile. Its range extends from Antofagasta to Puerto Montt and its depth range is between 0.5 and 20 m (2 and 66 ft).[2] It forms substantial stands, being found in rocky areas exposed or partially exposed to strong wave action.[1] This species is replaced in the intertidal rocky areas by Lessonia nigrescens, and these two kelps dominate the habitat forming kelp forests. Further south in Chile, Durvillaea antarctica becomes the dominant species of kelp.[3]

Ecology

Lessonia trabeculata grows in areas with strong surges, however it can be torn off the rocks during storms such as those associated with El Niño. It seems to have an annual cycle of growth, with the blade elongating fast during the summer, but growth slowing down in the autumn. It is possible to grow this species in the laboratory, and it may be suitable for aquaculture, with the aim of using it to repair damaged stands of kelp.[4]

gollark: For moving/scanning them I think what's been done is having a separate subnet with the cell you want and pushing to/from that.
gollark: You can partition them, not sure about manually.
gollark: Wait, you mean *manually* move them through those, or what?
gollark: Makes sense. Trouble is, though, even if I know which items should go where, how do I move them without huge buffers?
gollark: I have a bunch of pre-set-up storage barrel thingies and just want the stuff stored in cells to be efficiently stored.

References
  1. Guiry, M.D. & Guiry, G.M. "Lessonia trabeculata Villouta & Santelices". AlgaeBase. Retrieved 15 June 2018.CS1 maint: multiple names: authors list (link)
  2. Villouta, E.; Santelices, B. (1986). "Lessonia trabeculata sp. nov. (Laminariales, Phaeophyta), a new kelp from Chile". Phycologia. 25 (1): 81–86. doi:10.2216/i0031-8884-25-1-81.1.
  3. Gibson, R.N.; Atkinson, R.J.A.; Gordon, J.D.M. (2007). Oceanography and Marine Biology: An Annual Review. CRC Press. p. 240. ISBN 978-1-4200-5094-3.
  4. Edding, Mario; Venegas, Mariela; Orrego, Patricia; Fonck, Erika (1989). Culture and growth of Lessonia trabeculata (Phaeophyta, Laminariales) juvenile sporophytes in La Herradura de Guayacan Bay, northern Chile. Thirteenth International Seaweed Symposium. pp. 361–366. doi:10.1007/978-94-009-2049-1_51. ISBN 978-94-010-7419-3.
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