Dictyota sandvicensis

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Dictyota sandvicensis
Dictyota sandvicensis 448251804.jpg
Dictyota sandvicensis
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Clade: Diaphoretickes
Clade: SAR
Clade: Stramenopiles
Phylum: Gyrista
Subphylum: Ochrophytina
Class: Phaeophyceae
Order: Dictyotales
Family: Dictyotaceae
Genus: Dictyota
Species:
D. sandvicensis
Binomial name
Dictyota sandvicensis
Sonder, 1859

Dictyota sandvicensis also called limu 'Alani in Hawaiian, is a species of brown seaweed in the family Dictyotaceae endemic to the Hawaiian Islands. [1] [2]

Contents

Description

Dictyota sandvicensis reaches up to 15 cm in height, and has a iridescent yellow greenish color. [3] They can be easily spotted from other species of Dictyota in Hawai'i because they have small branches that break out from the edges of the main branches. [1] Dictyota sandvicensis consists of a single basal thallus that is firmly rooted and can support rhizoids. [3] The rhizoids lead to one to several erect fronds 1-5 mm wide. [3]

Distribution

Dictiyota sandvicensis is endemic to Hawaii and occurs throughout the Hawaiian Islands. [3]

Habitat

Dictiyota sandvicensis can be founded in mid- to low-tide pools, on low intertidal benches and on reef flats growing on rocks or as epiphytes on other algae in shallow waters up to 7m depth. [3] [4]

Nutrition & cultural significance

Limu is a regular part of the diet and is considered to contain more vitamins and essential mineral nutrients than other staple food items. [5] Dictyota sandvicensis icontainins proteins, lipids, carbohydrates, minerals, and vitamins and has a caloric content of over cal g-1 ash-free dry weight. [5] In Hawaii, D. sandvicensis is one of many species of limu that have traditionally been harvested from the shores. [6]

References

  1. 1 2 Huisman, John M.; Abbott, Isabella Aiona; Smith, Celia M. (2007). Hawaiian reef plants. Honolulu: Univ. of Hawai'i Sea Grant College Program. ISBN   978-1-929054-04-6.
  2. ↑ "WoRMS - World Register of Marine Species - Dictyota sandvicensis Sonder, 1859". www.marinespecies.org. Retrieved 2022-09-09.
  3. 1 2 3 4 5 Abbott, Isabella Aiona; Huisman, John M. (2004). Marine green and brown algae of the Hawaiian Islands. Bishop Museum bulletin in botany. Bernice Pauahi Bishop Museum. Honolulu, Hawaiʻi: Bishop Museum Press. ISBN   978-1-58178-030-7.
  4. ↑ Kuba, Gabrielle M.; Spalding, Heather L.; Hill-Spanik, Kristina M.; Fullerton, Heather (2021-10-27). Campbell, Barbara J. (ed.). "Microbiota-Macroalgal Relationships at a Hawaiian Intertidal Bench Are Influenced by Macroalgal Phyla and Associated Thallus Complexity". mSphere. 6 (5): e0066521. doi:10.1128/mSphere.00665-21. ISSN   2379-5042. PMC   8550217 . PMID   34550007.
  5. 1 2 McDermid, Karla J.; Stuercke, Brooke (2003-11-01). "Nutritional composition of edible Hawaiian seaweeds". Journal of Applied Phycology. 15 (6): 513–524. Bibcode:2003JAPco..15..513M. doi:10.1023/B:JAPH.0000004345.31686.7f. ISSN   1573-5176.
  6. ↑ Cox, T. E.; Foster, M. S. (2013-05-15). "The effects of storm-drains with periodic flows on intertidal algal assemblages in 'Ewa Beach (O'ahu), Hawai'i". Marine Pollution Bulletin. 70 (1): 162–170. Bibcode:2013MarPB..70..162C. doi:10.1016/j.marpolbul.2013.02.029. ISSN   0025-326X. PMID   23535190.



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