Fine-striped Shrimp

The Fine-striped Shrimp, also known as Thompson's Bulldozer Shrimp, is scientifically referred to as Alpheus ochrostriatus, although it was previously misnamed as Alpheus thompsoni in some circles. This small shrimp typically measures about 5 centimeters (2 inches) in length and is known for its robust and semi-transparent body, which is decorated with distinct, ochre-colored stripes.

This species inhabits tropical and subtropical marine environments within the Indo-Pacific region, favoring shallow waters near coral reefs and lagoons. They can be found at depths ranging from 1 to 5 meters (3 to 16 feet). Fine-striped Shrimps are benthic creatures that dwell in burrows within sandy or muddy substrates, or among the rubble of reef zones, which serve as protection from predators.

One of the defining characteristics of this shrimp is the striking asymmetry in its claws; one claw is significantly larger and is used for a unique snapping mechanism. This feature allows the shrimp to create a powerful snapping sound by rapidly closing the larger claw to form a cavitation bubble. This snap serves multiple purposes, including communication, stunning prey, and self-defense.

The Fine-striped Shrimp is omnivorous, feeding on a diet composed of small invertebrates, plankton, detritus, and organic particles. It often engages in a symbiotic relationship with gobies. In this mutually beneficial arrangement, the goby acts as a lookout, alerting the shrimp of potential dangers, while the shrimp maintains the burrow they both share.

As members of the order Decapoda, these shrimps are typically gonochoric, meaning they have distinct male and female sexes. Courtship behavior involves a precopulatory ritual, which is conducted through the use of olfactory and tactile cues, eventually leading to indirect sperm transfer.