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Published VersionCC BY-NC-ND V4.0, Open Access
Journal article
Tidal migrations of juvenile Sillago spp. in a subtropical intertidal nursery seascape
Marine & Freshwater Research, Vol.74(14), pp.1193-1210
2023
Abstract
Context: Subtropical intertidal pools on depositional shores are important nursery habitats for smaller juveniles (10 to ~25-mm total length, TL) of commercially important smelt whiting (Sillago spp.), whereas larger juveniles >25 mm TL occupy shallow subtidal habitats at low tide.
Aims: We investigated the connectivity between lower and upper shore habitats in Moreton Bay.
Methods: We used funnel camera traps to assess tidal movements of juvenile whiting and compared harpacticoid copepod genera in small juvenile whiting guts caught post-foraging with those sampled from nearby sediments to infer patterns of foraging.
Key results: Smaller juveniles transited sandy upper-shore habitat at depths from 1.5 to <10 cm and avoided vegetated habitats, whereas larger juveniles moved into mangroves at depths of 15–30 cm on the rising tide. Coullana spp. harpacticoids were found in greater proportions in whiting guts of small juveniles than in the sampled habitats, but were abundant in intertidal pool and mangrove sediments.
Conclusions: Intertidal sandy habitats are seemingly an important high-tide habitat for smaller juvenile whiting, where they preferentially forage on Coullana spp.
Implications: Given the broad distribution of smelt whiting in the Indo-Pacific, the protection of such habitats must be addressed by fishery and habitat management agencies for species with similar early nursery requirements.
Details
- Title
- Tidal migrations of juvenile Sillago spp. in a subtropical intertidal nursery seascape
- Authors
- Max L. Giaroli (Author) - The University of QueenslandCraig A. Chargulaf (Author) - ARUPBen L. Gilby (Author) - University of the Sunshine Coast, Queensland, School of Science, Technology and EngineeringIan R. Tibbetts (Corresponding Author) - The University of Queensland
- Publication details
- Marine & Freshwater Research, Vol.74(14), pp.1193-1210
- Publisher
- C S I R O Publishing
- Date published
- 2023
- DOI
- 10.1071/MF23033
- ISSN
- 1448-6059; 1323-1650
- Copyright note
- This is an open access article distributed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).
- Organisation Unit
- University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering
- Language
- English
- Record Identifier
- 99966894702621
- Output Type
- Journal article
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- Web Of Science research areas
- Fisheries
- Limnology
- Marine & Freshwater Biology
- Oceanography
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