BIOTIC Species Information for Pasiphaea spp.
Researched bySean Lindsley-Leake Data supplied byMarLIN
Refereed byThis information is not refereed
Scientific namePasiphaea spp. Common nameA glass shrimp
MCS CodeS1306 Recent Synonyms

PhylumCrustacea Subphylum
Superclass ClassEumalacostraca
SubclassEucarida OrderDecapoda
SuborderPleocyemata FamilyPasiphaeidae
GenusPasiphaea Species

Additional Information
Taxonomy References
General Biology
Growth form Feeding method
Temporary attachment
Environmental position
Typical food types HabitFree living
Bioturbator FlexibilityLow (10-45 degrees)
FragilityFragile SizeSmall-medium(3-10cm)
Height Growth Rate
Adult dispersal potential DependencyIndependent
General Biology Additional Information
Biology References Company et al., 2001,
Distribution and Habitat
Distribution in Britain & Ireland
Global distribution
Biogeographic range Depth range
Distribution Additional Information

Substratum preferences Physiographic preferences
Biological zone Wave exposure
Tidal stream strength/Water flow Salinity
Habitat Preferences Additional Information
Distribution References Ramirez-Llodra et al., 2007,
Reproduction/Life History
Reproductive typeGonochoristic
Developmental mechanismLecithotrophic
Reproductive SeasonSee additional information Reproductive LocationAs adult
Reproductive frequencySee additional information Regeneration potential No
Life spanInsufficient information Age at reproductive maturityInsufficient information
Generation timeInsufficient information Fecundity12-49
Egg/propagule size1.5mm Fertilization typeInternal
Larval/Juvenile dispersal potentialInsufficient information Larval settlement periodInsufficient information
Duration of larval stage11-30 days   
Reproduction Preferences Additional InformationReproductive season and frequency are both dependant on species, and geographical location of species:continuous in P.sivado in the Med, seasonal in the Irish Sea; sept-march in P.multidentata. Fecundity is also highly dependant on species, with geographical variation within species. The oogenetic pattern of P.sivado is typical of a caridean shrimp. There is a pool of previtellogenic oocytes at all times that develop from the periphery of the gonad towards the centre during maturation. Previtellogenic oocytes grow to approximately 200 µm before undergoing vitellogenesis. The vitellogenic oocytes are surrounded by a monolayer of accessory cells. The maximum size observed for a mature oocyte is 1420 µm. The oocyte-size distribution confirms the seasonal reproductive pattern of this species; in winter, the ovaries contained mainly previtellogenic oocytes, some of which start maturing in spring, resulting in a slightly bimodal distribution. In summer, the vitellogenic oocytes reach approximately 1000 µm and in late autumn the ovaries are fully mature and ready to spawn.large size of mature vitellogenic oocytes (~1400 µm) corresponds to the egg size (1870 µm in length) previously reported from ovigerous females (Company et al. 2001). This egg size is indicative of lecithotrophic larval development with a reduction in the number of larval stages . Abbreviated larval development provides a higher larval survival probability, and is typical of deep-sea caridean shrimps.
Reproduction References Company et al., 2001, Williamson, 1960, Ramirez-Llodra et al., 2007,
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