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Schraderia gracilis   Pfeffer, 1888


Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Schraderia gracilis  AquaMaps  Data sources: GBIF OBIS
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Schraderia gracilis


South Shetland Islands country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: C: Ref. 116836.
National Checklist:
Country Information:
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Rauschert, M. and W.E. Arntz, 2015
National Database:

Common names from other countries

Classification / Names / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS

Malacostraca > Amphipoda (Amphipods) > Eusiridae ()

Environment: milieu / climate zone / depth range / distribution range Ecology

Benthic; depth range 0 - 388 m (Ref. 84663).   Polar

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Southern Ocean: East and West Antarctic, South Georgia and Sub-Antarctic Islands provinces.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm

Biology     Glossary (e.g. epibenthic)

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Members of the order Amphipoda are gonochoric and sexually dimoprhic (males larger than females). Mating behavior: Males locate potential partners with the aid of their antenna to detect the pheromones released by the females; the male then rides or carries the female until the latter is ready to molt. When the female is ready, the male pushes the sperm into the marsupium and releases the female afterwards. A few hours later, the female releases her eggs into the marsupium for fertilization. Life cycle: Eggs are brooded in the marsupium. Eggs hatch into juveniles and remain in the marsupium for a few days. Each species undergo 20 molts at most, i.e., 1-year long life cycle.

Main reference References | Coordinator | Collaborators

De Broyer, C., J.K. Lowry, K. Jazdzewski and H. Robert. 2007. (Ref. 84663)

IUCN Red List Status (Ref. 130435: Version 2024-1)


CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless

Human uses


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More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Common names
Synonyms
Predators
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Morphology
Larvae
Abundance
References
Mass conversion

Internet sources

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Tree of Life | Wikipedia (Go, Search) | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): -1.8 - 2.8, mean -0.6 (based on 41 cells).