Acetes americanus

Acetes americanus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Malacostraca
Order:	Decapoda
Suborder:	Dendrobranchiata
Family:	Sergestidae
Genus:	Acetes
Species:	A. americanus
Binomial name
Acetes americanus Ortmann, 1893

Acetes americanus is a small shrimp species in the family Sergestidae found in the western Atlantic Ocean between Brazil and the United States.^[1][2]

Taxonomy

Two subspecies are recognized:^[1]

• A. a. americanus Ortmann, 1893
• A. a. carolinae Hansen, 1933

Description

Acetes americanus is a small pelagic species, reaching lengths of 10–44 mm.^[3] The body is elongated and narrow with a white, translucent color and red spots along the base of the abdominal fan. Protruding eye stalks are present.^[4]

Distribution and habitat

A. americanus can be found within estuaries and coastal waters of tropical, subtropical, and temperate regions. Acetes americanus reside mainly in Brazil, along the northern coast of the state of São Paulo.^[5] Acetes americanus are attracted to coastal waters with salinities ranging from 22 to 38 and temperatures within 16 to 30 degrees Celsius. The depth range of the species ranges from 0–42 m.^[2] Densities vary among years, seasons, and localities within the predicted habitat for the Acetes americanus.^[6]

The species is most abundant in shallow waters during the warm summer months.^[7]

Ecology

Reproduction

The species uses a typical mating behavior found within most shrimp species. The species undergoes a precopulatory courtship ritual which is through olfactory and tactile cues usually through an indirect sperm transfer.^[2]

Predators

A. americanus form part of the diet of the banded drum (Larimus fasciatus) and are principally taken during the times of largest abundance in spring and summer.^[8]

Human use

The species is deemed of economic importance within Asian and African countries for human consumption. It is also economically important due to its use of feed for species within the aquaculture industry. Among the six species of shrimp, Acetes americanus make up 83% of the worldwide shrimp catches.^[3]

References

1. "Acetes americanus Ortmann, 1893". WoRMS. World Register of Marine Species. 2021. Retrieved 30 April 2021.
2. "Acetes americanus, aviu shrimp". www.sealifebase.ca. Retrieved 2021-04-29.
3. Fransozo, Adilson; Leão Castilho, Antonio; Simões, Sabrina Morilhas; D’Incao, Fernando; Caetano da Costa, Rogerio (2013). "Sex ratio, growth and recruitment of the pelagic shrimp Acetes americanus on the southeastern coast of Brazil". Journal of Crustacean Biology. 33: 1–9. doi:10.1163/1937240X-00002108.
4. "Sergestid shrimp, Acetes americanus". txmarspecies.tamug.edu. Retrieved 2021-04-29.
5. Santos, Ana Paula Freitas dos; Simões, Sabrina Morilhas; Bochini, Gabriel Lucas; Costa, Cinthia Helena; Costa, Rogerio Caetano da (September 2015). "Population parameters and the relationships between environmental factors and abundance of the Acetes americanus shrimp (Dendrobranchiata: Sergestidae) near a coastal upwelling region of Brazil". Brazilian Journal of Oceanography. 63 (3): 229–238. doi:10.1590/S1679-87592015086206303. hdl:11449/168059.
6. Williams, Austin B. (1969-03-01). "A ten-year study of meroplankton in North Carolina estuaries: Cycles of occurrence among penaeidean shrimps". Chesapeake Science. 10 (1): 36–47. doi:10.2307/1351211. ISSN 0009-3262. JSTOR 1351211.
7. Simões, Sabrina Morilhas; Castilho, Antonio Leão; Fransozo, Adilson; Negreiros-Fransozo, Maria Lúcia; da Costa, Rogerio Caetano (2013). "Distribution related to temperature and salinity of the shrimps Acetes americanus and Peisos petrunkevitchi (Crustacea: Sergestoidea) in the south-eastern Brazilian littoral zone". Journal of the Marine Biological Association of the United Kingdom. 93 (3): 753–759. doi:10.1017/S0025315412000902. hdl:11449/75239. S2CID 53642327.
8. Ross, Steve W. (1989). "Diet of the Banded Drum in North Carolina". Transactions of the American Fisheries Society. 118 (6): 680–686. doi:10.1577/1548-8659(1989)118<0680:DOTBDI>2.3.CO;2.