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Coastal chemical cues for settlement of the southern rock lobster, Jasus edwardsii
conference contribution
posted on 2023-05-23, 14:23 authored by Hinojosa, IA, Caleb GardnerCaleb Gardner, Bridget Green, Jeffs, ALarval behavior plays an important role in dispersal and settlement of marine organisms with cues from the environment often providing crucial guidance for facilitating these processes. The post-larvae, or pueruli, of the southern rock lobster, Jasus edwardsii (Hutton, 1875), are known to migrate over long distances from oceanic water and settle on coastal reefs using a combination of onshore transport and active nocturnal swimming. In laboratory experiments, we examined environmental cues used for this migration, specifically whether chemical cues in coastal vs oceanic seawater influenced their swimming orientation and their rate of development to juveniles. In total, 66% of pueruli actively swam toward coastal water rather than oceanic water (n = 41), indicating that they may use chemical cues in their settlement processes. Holding pueruli in coastal water vs artificial seawater did not expedite the development of pueruli to benthic juvenile stage, indicating that other cues could be important to the final settlement process. The present study suggests that chemical cues are being used in settlement processes during the onshore migration to settlement sites in this ecologically and economically important species.
Funding
Australian Research Council
Department of Natural Resources and Environment Tasmania
History
Publication title
Bulletin of Marine ScienceVolume
94/3Editors
K Lavalli and R WahlePagination
619-633ISSN
0007-4977Department/School
Institute for Marine and Antarctic StudiesPublisher
Rosenstiel School of Marine & Atmospheric SciencePlace of publication
MiamiEvent title
11th International Conference and Workshop on Lobster Biology & ManagementEvent Venue
Portland, MaineDate of Event (Start Date)
2017-06-04Date of Event (End Date)
2017-06-09Rights statement
Copyright 2018 Rosenstiel School of Marine & Atmospheric Science of the University of MiamiRepository Status
- Restricted