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Palaemonetes - Species in
Palaemonidae - - Classification -
- Palaemonidae
- Decapoda
- Malacostraca
- Chordata
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Palaemonetes varians (Leach, 1814)
Atlantic ditch shrimp
Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS
Malacostraca | Decapoda | Palaemonidae
Environment: milieu / climate zone / depth range / distribution range Ecology
Benthic; brackish. Temperate; 60°N - 32°N, 11°W - 20°E
Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions
Northeast Atlantic and the Mediterranean: From north-west Europe and western Mediterranean and on the Atlantic coast of Morocco.
Length at first maturity / Size / Weight / Age
Maturity: Lm ? range ? - ? cm Max length : 3.7 cm TL male/unsexed; (Ref. 2793); 5.2 cm TL (female)
Body almost colorless and translucent. Body of females sometimes with greenish chromatophores (Ref. 2793). Occurs in brackish water lakes and shallow coastal lagoons with salinity from 0.9 to 25.3 (Ref. 2745). Prefers stagnant and slow-running waters, irrigation channels and salt marshes (Ref. 2792). Associated with Palaemon elegans and/or Palaemon adspersus (Ref. 2745). Detritivores; with a varied diet characterized by scavenging and opportunistic feeding behavior (Ref. 2838).
Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Exhibits moulting before breeding during spring at temperatures between 9 to 10°C (Ref. 2804). Females produce about 150 eggs (Ref. 2748).
Main reference
References | Coordinator | Collaborators
Dolmen, D., J. Hindley and E. Kleiven 2004 Distribution of Palaemonetes varians (Leach) (Crustacea, Decapoda) in relation to biotope and other caridean shrimps in brackish waters of southern Norway and southwestern Sweden. Sarsia: North Atlantic Marine Science 89(1):8-21(14). (Ref. 2745)
IUCN Red List Status
(Ref. 130435: Version 2025-1)
CITES status (Ref. 108899)
Not Evaluated
CMS (Ref. 116361)
Not Evaluated
Threat to humans
Human uses
Fisheries: commercial
FAO - Aquaculture: production; | FishSource | Sea Around Us
Tools
More information
Trophic Ecology
Ecology
Population dynamics
Growth
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Abundance
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Abundance
Life cycle
Distribution
Physiology
Oxygen consumption
Human Related
Stamps, coins, misc.
Outreach
Taxonomy
References
Internet sources
BHL | BOLD Systems | CISTI | DiscoverLife | FAO(; publication : search) | Fishipedia | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Tree of Life | Wikipedia (Go, Search) | Zoological Record
Estimates based on models
Nutrients : Calcium = 109 [35, 184] mg/100g; Iron = 1.59 [1.21, 1.97] mg/100g; Protein = 20.2 [19.2, 21.3] %; Omega3 = 0.285 [0.185, 0.386] g/100g; Selenium = 48.3 [-31.7, 128.3] μg/100g; VitaminA = 0 μg/100g; Zinc = 1.79 [1.17, 2.40] mg/100g (wet weight); based on nutrient studies.