Pandalus platyceros

Primarily inhabits marine environments at depths of 3.7 to 457.2 meters, with highest abundance around 109.7 meters. Juveniles utilize Agarum kelp beds as nursery habitat in southern British Columbia, settling primarily in May and June.

North Pacific Ocean from Unalaska Island, Alaska to San Diego, California, and from the Sea of Japan to the Korea Strait. Present in East Pacific and North East Pacific marine ecoregions.

Harvest season lasts 6-8 weeks from May to June, coinciding with the new lifecycle phase. Juvenile settlement into nursery habitats occurs primarily in May and June, with lesser settlement continuing through summer.

Protandric hermaphrodite: individuals mature first as males, with the appendix masculina lengthening during maturation, then gradually shorten through transitional stages until complete disappearance upon transformation to female. Transition size estimated at approximately 40.8 mm carapace length. Molting success and duration are temperature-dependent: at 5°C molt time averages 41 days, at 11°C approximately 34 days, and at 17°C approximately 21 days. Juveniles in kelp nurseries grow approximately 3 mm carapace length per month through summer and fall, with slower growth of about 1 mm per month for those remaining through winter.

Reflex behaviors have been documented as indicators for evaluating vitality and predicting mortality. Temperature significantly alters chemosensory and locomotory behaviors, with highest activity observed at intermediate temperatures (11°C). Antennule flicking decreases significantly at elevated temperatures following exposure to certain aquaculture chemicals.

Serves as prey species in marine food webs. Nursery habitat in Agarum kelp beds provides structured habitat for juvenile development.

Highly valued commercial fishery species. British Columbia harvests approximately 2,450 metric tonnes annually, with Alaska limited to under 800,000 lbs (approximately 363 tonnes) and California producing approximately 100 metric tonnes annually. Recognized as sustainable by Vancouver Aquarium's OceanWise program and rated "Good Alternative" by Monterey Bay Aquarium's Seafood Watch program. Marketed in Japan as 'Botan Ebi' despite not being a traditional domestic species. Subject to research on effects of aquaculture chemotherapeutants including azamethiphos formulations.

• Pandalus borealisOverlaps in North Pacific distribution and commercial importance; distinguished by P. platyceros having distinct white spots on first and fifth abdominal segments and banded antennae
• Botan ebi (traditional Japanese shrimp)Marketed interchangeably in Japan; requires close examination of head morphology to distinguish, though flavor and texture are considered equivalent

• commercial fishery
• protandric hermaphrodite
• kelp nursery habitat
• sustainable seafood
• North Pacific
• deep water shrimp
• temperature-dependent development

• BugGuide
• Wikipedia
• GBIF taxonomy match
• iNaturalist taxon
• NCBI Taxonomy
• Catalogue of Life
• Evaluating vitality and predicting mortality in spot prawn, Pandalus platyceros, using reflex behaviors
• Agarum Kelp Beds as Nursery Habitat of Spot Prawns, Pandalus Platyceros Brandt, 1851 (Decapoda, Caridea)
• Agarum Kelp Beds as Nursery Habitat of Spot Prawns, Pandalus Platyceros Brandt, 1851 (Decapoda, Caridea)
• Tag Retention of the Spot Prawn, Pandalus platyceros, Injected With Coded Wire Tags
• The protandric life history of the Northern spot shrimp Pandalus platyceros: molecular insights and implications for fishery management
• Biological traits of the spot prawn Pandalus platyceros Brandt, 1851 (Decapoda, Caridea) at its southernmost distribution limit
• Concentrations of Inorganic Elements and Fatty Acids in Geographic Populations of the Spot Prawn Pandalus platyceros
• Lethal and sublethal effects of the anti‐sea lice formulation Salmosan® on the Pacific spot prawn (Pandalus platyceros)