Lysmata californica

(Stimpson, 1866)

red rock shrimp, lined shrimp

Lysmata californica is a caridean shrimp to the East Pacific, commonly known as the red rock shrimp or lined shrimp. It inhabits shallow coastal of Southern California where it plays a role in . The species has been studied for its behavioral responses to environmental stressors including ocean acidification and warming.

Lysmata californica by no rights reserved, uploaded by Alex Heyman. Used under a CC0 license.

Pronunciation

How to pronounce Lysmata californica: /lɪsˈmɑːtə ˌkælɪˈfɔːrnɪkə/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Images

Habitat

Shallow coastal marine of Southern California. Seasonal and long-term changes in ocean pH and temperature are documented environmental factors in this .

Distribution

East Pacific; specifically recorded from coastal waters of Southern California. GBIF records also indicate presence in New Zealand, though this may represent introduction or misidentification.

Life Cycle

Molting is a critical life ; postmolt recovery periods have been studied under varying environmental conditions.

Behavior

Postmolt behaviors including feeding, cleaning , and startle responses have been assessed in research contexts. These behaviors may be altered under ocean acidification and warming conditions.

Ecological Role

Described as a in Southern California's shallow coastal , suggesting functional importance in local .

More Details

Taxonomic Note

placement has varied between sources: Lysmatidae (GBIF, iNaturalist, Catalogue of Life) and Hippolytidae (NCBI, original Wikipedia description). This reflects ongoing taxonomic revision in caridean shrimp .

Research Context

A 2025 conference abstract (later withdrawn) investigated postmolt behavioral responses to combined pH (8.1 and 7.7) and temperature (12°C and 15°C) conditions over 50-day exposure periods. The withdrawal of this abstract limits confirmation of specific findings.