Metabetaeus lohena
| Metabetaeus lohena | |
|---|---|
| |
| A captive specimen. | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Malacostraca |
| Order: | Decapoda |
| Suborder: | Pleocyemata |
| Infraorder: | Caridea |
| Family: | Alpheidae |
| Genus: | Metabetaeus |
| Species: | M. lohena
|
| Binomial name | |
| Metabetaeus lohena Banner & Banner, 1960
| |
Metabetaeus lohena, also known as the alpha snapping shrimp or anchialine snapping shrimp,[1] is a species of alpheid shrimp native to Hawaii[2] and Easter Island.[3]
Description[edit]
Metabetaeus lohena is an alpheid scavenger, which will also hunt small anchialine invertebrates.[4] M. lohena grows to lengths of 18 mm and are pale pink to vibrant red in colour.[5] Shrimp possess large claws and a clearly visible mandibular spot.[5] Females once gravid will produce a mass of 20 to 29 eggs.[4] M. lohena larvae lack a yolk sack, which suggests the species possess a planktotrophic larval feeding phase.[4] M. lohena have been recorded to live for up to 6 years.[2]
Distribution and habitat[edit]
Metabetaeus lohena has a widespread distribution in Hawaii where it is native to many islands. The species is also found on Easter Island. They live in anchialine pools,[2] which are landlocked bodies of water with underground connections to the ocean. These pools often possess fresh or brackish water near the surface, but saline water at depth. Shrimp can be found naturally living at salinities ranging from 2 to 36 ppt and water temperatures at around 20 °C (68 °F) or higher.[2] Hawaiian populations of M. lohena coexist alongside their prey species ʻōpaeʻula shrimp (Halocaridina rubra)[2] with their known range entirely overlapping.[4]
References[edit]
- ^ "Anchialine Snapping Shrimp". United States Fish and Wildlife Service. 2023-03-20. Retrieved 2023-03-20.
- ^ a b c d e "Anchialine Ponds Anchialine Pond Shrimps" (PDF). Hawaii Department of Land and Natural Resources (dlnr.hawaii.gov). 2015-11-01. Retrieved 2023-03-20.
- ^ Anker, Arthur, 2010, Metabetaeus Borradaile, 1899 revisited, with description of a new marine species from French Polynesia (Crustacea: Decapoda: Alpheidae), Zootaxa 2552, pp. 37-54 : 51-53 DOI:10.5281/zenodo.6206644
- ^ a b c d Russ, Atlantis; Santos, S R; Muir, Cam (2010). "Genetic population structure of an anchialine shrimp, Metabetaeus lohena (Crustacea: Alpheidae), in the Hawaiian Islands". Researchgate.net. doi:10.15517/rbt.v58i1.5201. Retrieved 2023-03-20.
- ^ a b "U.S. FISH AND WILDLIFE SERVICE SPECIES ASSESSMENT AND LISTING PRIORITY ASSIGNMENT FORM" (PDF). United States Fish and Wildlife Service ECOS Environmental Conservation Online System. 2014-06-19. Retrieved 2023-03-20.