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Palaemonetes pugio   Holthuis, 1949

daggerblade grass shrimp
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Classification Common names | Synonyms | CoL | ITIS | WoRMS

Malacostraca | Decapoda | Palaemonidae

Main reference References | Biblio | Coordinator | Collaborators

Williams, A.B., L.G. Abele, D.L. Felder, H.H. Hobbs Jr., R.B. Manning, P.A. McLaughlin and I. Pérez Farfante. 1988. (Ref. 2214)

Size / Weight / Age

max. reported age: 2 years (Ref. 2823)


Benthic; brackish; pH range: 0.0 - 55.0; depth range 0 - 2 m (Ref. 97531)

Climate / Range

Subtropical; 5°C - 38°C (Ref. 82139)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Western Atlantic and the Arctic.

Biology     Glossary (e.g. epibenthic)

Often found near underwater structures and dense stands of aquatic macrophytes in shallow areas of estuaries. Movement and distributional patterns likely influenced by both photoperiod and tidal cycles. Mainly detritivorous; also feeds on epiphytic microalgae and prey on meiofauna and small infaunal polychaetes, oligochaetes, nematodes, epiphytic fauna, and mysids. Preyed upon by various estuarine fishes and other aquatic carnivores. Host to numerous species of parasites and ectocommensals, primarily coccidia, microsporidians, trematodes, isopods, and leeches (Ref. 96311). During the spawning season, the female molts and becomes receptive to the male. Copulation occurs within 7 hours after molting. Ova are externally fertilized on the ventral surface of the female abdomen. Fecundity is between 247 to 486 eggs per female. Eggs hatch 12 to 60 days after fertilization. After spawning, the female molts again. Larvae are planktonic and feed on zooplankton, algae, and detritus (Ref. 96311).

IUCN Red List Status (Ref. 114614)


CITES status (Ref. 94142)

Not Evaluated

Threat to humans

Human uses

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More information

FAO areas
Food items

Internet sources

BHL | BOLD Systems | Check for other websites | Check FishWatcher | CISTI | DiscoverLife | FAO(Publication : search) | GenBank (genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | ispecies | PubMed | Scirus | FishBase | Tree of Life | uBio | uBio RSS | Wikipedia (Go, Search) | Zoological Record

Estimation of some characteristics with mathematical models

Price category (Ref. 80766)
Very high