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• W2473520970 abstract "MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 553:125-146 (2016) - DOI: https://doi.org/10.3354/meps11779 Biogeographic, ontogenetic, and environmental variability in larval behaviour of American lobster Homarus americanus R. R. E. Stanley1,3,*, E. J. Pedersen2, P. V. R. Snelgrove1 1Ocean Sciences Center and Biology Department, Memorial University of Newfoundland, St. John’s, PO Box 4200, Newfoundland A1C 5S7, Canada 2Biology Department, W3/1 Stewart Biology Building, McGill University, Montreal, Québec H3A 1B1, Canada 3Present address: Bedford Institute of Oceanography, Dartmouth, Nova Scotia B2Y 4A2, Canada *Corresponding author: rstanley@mun.ca ABSTRACT: Through laboratory observations we evaluated the influence of natal origin, ontogeny, and environment (light, temperature) on the vertical and horizontal swimming behaviour of larval American lobster Homarus americanus. We quantified several behavioural indices including vertical water position, average swim speed, and linearity, and measured how these factors interacted to determine horizontal diffusivity. Larval swimming behaviour varied significantly for all behavioural indices as a function of natal origin, ontogeny, temperature, and light. Across treatments, post-larvae exhibited fastest swim speeds (5.96 cm s-1), horizontal diffusivities (9.97 cm2 s-1), and highest position in the water column compared to earlier stages. We observed significantly lower (~60%) swimming speed and vertical position in intermediate developmental stages compared to early and late stages. Within stage I larvae, swim speed averaged 2.1 cm s-1 with a horizontal diffusivity of 3.31 cm2 s-1, and although swim speed did not vary with maternal origin we observed a significant interaction between origin and temperature. Larvae from different geographic regions, reared in common garden conditions, differed in behavioural response to temperature; warm origin larvae swam significantly faster (~25%) in warm water, as did cold origin larvae in cold water (~43% faster), relative to each other. Our results detail potential novel sources of variability in larval behaviour and provide one of few direct measures of swimming behaviour of larval American lobster. Collectively, our results provide a biological-behavioural context to parameterize biophysical models with broad applicability to meroplanktonic species, and a powerful tool to potentially improve accuracy of dispersal models and advance understanding of larval transport. KEY WORDS: Larvae · Behaviour · Swimming · Light · Temperature · Biogeography · Diffusion · American lobster Full text in pdf format PreviousNextCite this article as: Stanley RRE, Pedersen EJ, Snelgrove PVR (2016) Biogeographic, ontogenetic, and environmental variability in larval behaviour of American lobster Homarus americanus. Mar Ecol Prog Ser 553:125-146. https://doi.org/10.3354/meps11779 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 553. Online publication date: July 14, 2016 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2016 Inter-Research." @default.
• W2473520970 created "2016-07-22" @default.
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• W2473520970 date "2016-07-14" @default.
• W2473520970 modified "2023-09-25" @default.
• W2473520970 title "Biogeographic, ontogenetic, and environmental variability in larval behaviour of American lobster Homarus americanus" @default.
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