Can branchiopod crustaceans detect predators andor prey using multimodal sensory integration


SOCIETY FOR INTEGRATIVE AND COMPARATIVE BIOLOGY
2021 VIRTUAL ANNUAL MEETING (VAM)
January 3 – Febuary 28, 2021

Meeting Abstract


96-9  Sat Jan 2  Can branchiopod crustaceans detect predators and/or prey using multimodal sensory integration? Legg, A*; Lessios, N; Assumption University; Assumption University amelie.legg@assumption.edu

Branchiopods are a group of crustaceans that are often found in temporary pond habitats. These crustaceans have reduced central nervous systems in comparison to other Pancrustaceans, a group which includes insects and crustaceans. Branchiopods have sensory organs which can detect mechanosensory and light information; however, it is unknown how branchiopods use mechanosensory cues, or how they might integrate information from their sensory organs. A well-known example of aquatic Pancrustaceans which use pressure wave information to detect prey includes the backswimmer, which can detect prey in pond habitats. Additionally, arthropod multimodal prey detection has been identified in medicinal leeches. Some work suggests that medicinal leeches use a range of mechanical, visual and combined cues to detect prey in the water. If we compare multimodal cues presented to medicinal leeches to branchiopods, we can identify if branchiopod crustaceans use multimodal information to detect predators and prey. To explore this question, we use two groups of branchiopods that are often found to cohabitate the same temporary ponds: tadpole shrimp, and fairy shrimp. These branchiopods differ in their ecologies. Tadpole shrimp are benthic scavengers while fairy shrimp are freely swimming suspension-feeders. Studying how organisms that have reduced central nervous systems process multimodal cues from their environment is especially relevant to understand sensory processing and integration in arthropods.

the Society for
Integrative &
Comparative
Biology