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Mottled Shore Crab

Pachygrapsus transversus

A fast, flat crab with mottled patterns that scurries over rocks and feeds on algae, detritus, and small animals.

Species Data

First Recorded: 2024-07-14 00:00:00

Last Observed: 2025-10-30 00:00:00

Est. Population: 2

Record Created: 2025-09-26 00:00:00

Realm: Saltwater

Main Biome: Marine Shore, Seagrass Meadow

Trophic Role: Omnivore

Feeding Niche: Omnivore, consumes algae and detritus

Known Predators: None Known

Currently: Not Reproducing

Population Size: 2

First Recorded: 2024-07-14 00:00:00

Reproduction Notes: 1 entries

Status: Endangered

Realm: Saltwater

Main Biome: Marine Shore, Seagrass Meadow

Population Size: 2

Conservation Notes: 1 entries

No general notes recorded yet

General observations and notes will appear here once added.

Ecology Notes

Spends most of it's time on the rocks and at the upper half of the water column, eating filamentous algae on surfaces

Reproduction Notes

Currently only 2 females are in miniBIOTA. Unfertilized eggs produced regularly.

Conservation Notes

These crabs will eventually go extinct in miniBIOTA unless male crabs are introduced. Full life cycle even with males is still uncertain and may be unlikely.