Heptacarpus
Heptacarpus is a genus of shrimp in the family Hippolytidae. They are commonly known as “deepwater shrimp” or “glass shrimp”. These shrimp are characterized by their transparent or translucent bodies, which allow them to blend in with their surroundings. They are found in various habitats, including rocky reefs, kelp forests, and sandy bottoms, throughout the North Pacific Ocean.
Characteristics
Heptacarpus shrimp typically have elongated bodies with long, slender rostrums (beak-like projections on the head). They also have relatively long antennae, which they use for sensing their surroundings. The size of these shrimp can vary depending on the species, but most are relatively small, typically measuring less than 2 inches in length.
One notable characteristic of Heptacarpus shrimp is their transparency. Their bodies lack pigmentation, allowing them to effectively camouflage against the clear water and the complex underwater environments they inhabit. This transparency makes them difficult to see, particularly in low-light conditions.
Environments
Heptacarpus shrimp are found in a range of marine environments within the North Pacific Ocean, including:
- Rocky reefs: They can be found clinging to rocks and crevices.
- Kelp forests: Heptacarpus shrimp utilize the kelp for shelter and food.
- Sandy bottoms: Some species are found burrowing into the sand.
- Deep water: Heptacarpus is often associated with depths of up to 1,000 meters.
Diet
Heptacarpus shrimp are primarily carnivorous, feeding on small crustaceans, polychaetes (segmented worms), and other invertebrates. Their diet varies depending on the species and their location, but they are generally opportunistic feeders.