Cookies Policy

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Marsupial Developmental Stages in Americamysis Bahia (Mysida: Mysidae)

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

This Article is currently unavailable for purchase.
Add to Favorites
You must be logged in to use this functionality

Cover image Placeholder

Abstract The marsupial development of a population of Americamysis (= Mysidopsis) bahia from the Gulf of Mexico was examined at 16°C, 20°C, and 29°C from oviposition to the juvenile stage. Three phases of development, divided into five stages, occurred during in vitro culture of larvae. The embryonic phase (Stage 1) is spherical and surrounded by the egg membrane. The nauplioid phase begins with hatching from the egg membrane and consists of an early (Stage 2) and late (Stage 3) stage. The early nauplioid stage, which is divided into three substages, elongates into a comma-shaped larva and ends with the appearance of thoracic chromatophores. Stage 3 begins with the formation of eye pigment and ends with the shedding of the naupliar cuticle. The subsequent postnauplioid phase has two stages. Stage 4 is characterized by the formation of a yolk protuberance anterodorsal to the carapace. Stage 5 begins with enclosure of the yolk in the carapace and ends with release of the larvae from the marsupium and a molt to the juvenile stage. Following liberation of young at night, the female molts, and usually mates and extrudes another brood of eggs. Survival rates of A. bahia larvae in vitro increased with age and with decreasing temperature. Average brood durations of larvae were 15.5 days at 16°C, 10.4 days at 20°C, and 4.6 days at 29°C. Observations of brood release, spatial organization within the marsupium, and adoption of larvae are discussed.


Full text loading...


Data & Media loading...

Article metrics loading...



Can't access your account?
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation