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Coastal chemical cues for settlement of the southern rock lobster, Jasus edwardsii


Hinojosa, IA and Gardner, C and Green, BS and Jeffs, A, Coastal chemical cues for settlement of the southern rock lobster, Jasus edwardsii, Bulletin of Marine Science, 4-9 June 2017, Portland, Maine, pp. 619-633. ISSN 0007-4977 (2018) [Refereed Conference Paper]

Copyright Statement

Copyright 2018 Rosenstiel School of Marine & Atmospheric Science of the University of Miami

DOI: doi:10.5343/bms.2017.1136


Larval 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.

Item Details

Item Type:Refereed Conference Paper
Keywords:recruitment, larval dispersal, stock-recruitment, southern rock lobster
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Fisheries sciences
Research Field:Aquaculture and fisheries stock assessment
Objective Division:Animal Production and Animal Primary Products
Objective Group:Fisheries - wild caught
Objective Field:Wild caught rock lobster
UTAS Author:Hinojosa, IA (Mr Ivan Hinojosa)
UTAS Author:Gardner, C (Professor Caleb Gardner)
UTAS Author:Green, BS (Associate Professor Bridget Green)
ID Code:136477
Year Published:2018
Funding Support:Australian Research Council (LP120200164)
Web of Science® Times Cited:4
Deposited By:Fisheries and Aquaculture
Deposited On:2019-12-23
Last Modified:2019-12-23

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