Lacustrine Scud
Gammarus lacustris
This record describes Gammarus lacustris (species). Recorded family: Gammaridae. Recorded order: Amphipoda.
Identification and Appearance
Wikipedia reference for Gammarus lacustris: https://en.wikipedia.org/wiki/Gammarus lacustris.
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Malacostraca
- Order
- Amphipoda (Amphipods)
- Suborder
- Senticaudata
- Family
- Gammaridae (Scuds)
- Genus
- Gammarus
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Additional species information
Species notes from the sources
Etymology: Author: G. O. Sars, 1863
About Amphipods: the wider group
Order-level background for Amphipoda, the group containing Gammarus lacustris. Species-specific details appear above.
Group overview
Amphipoda includes ~10,000 described species of scuds, sand hoppers, and whale lice. While mostly aquatic, some species like sand hoppers (Talitrus saltator) are fully terrestrial, living on beaches above the tide line.
Ecological role of the group
Amphipods are critical detritivores in aquatic ecosystems, shredding leaf litter and recycling nutrients. Deep-sea amphipods have been found at the bottom of the Mariana Trench (10,994m), making them among the deepest-living animals on Earth.
Economic and practical significance of the group
Amphipods are standard test organisms in aquatic toxicology - Hyalella azteca is the EPA's primary freshwater sediment toxicity test species. They are also important food for fish in both freshwater and marine ecosystems.
Recorded sources for this group: EPA ecotoxicology, deep-sea biology, marine research. Imported estimates may describe particular regions or reporting periods.
Photos of Lacustrine Scud (6)
Photo credits: Contributed by Charley Eiseman