Journal article
Differential use of seagrass assemblages by a suite of odacid species
Estuarine, Coastal and Shelf Science, Vol.52(1), pp.79-90
2001
Abstract
Members of the teleost family Odacidae were sampled over five seasons from three seagrass assemblages, comprising predominantly either Amphibolis griffithii, Posidonia sinuosa or Posidonia coriacea, in marine waters at depths of 4-9 m in south-western Australia. These three assemblages were characterized by different seagrass or meadow structure, thereby creating three distinct seagrass habitats. Four odacid species were relatively abundant in the seagrass meadows, although each species displayed a ' preference ' for one habitat. Odax acroptilus, which had the largest body size, was restricted almost entirely to meadows of A. griffithii, the most structurally complex habitat with open spaces below a dense canopy. In contrast, smaller species, such as Neoodax balteatus and Siphonognathus radiatus, were either restricted to or found in higher densities in P. sinuosa meadows, which form dense foliage near the substrata. Haletta semifasciata was also restricted to P. sinuosa meadows, albeit in low densities. The patchy landscape produced by P. coriacea housed far fewer fish of all species, except Siphonognathus attenuatus, which was found almost entirely, but in low numbers, in this habitat. Additional sampling of P. sinuosa meadows in nearshore waters revealed that, compared to the more offshore meadows, fewer species occurred in these seagrass meadows. Even the most abundant species, S. radiatus, was present in far lower densities in nearshore waters. The presence of fish ranging from small juveniles to large adults with mature and running-ripe gonads in offshore meadows throughout the year indicates that odacids are capable of completing their life-cycle within offshore seagrass meadows.
Details
- Title
- Differential use of seagrass assemblages by a suite of odacid species
- Authors/Creators
- L.D. MacArthur (Author/Creator) - Murdoch UniversityG.A. Hyndes (Author/Creator) - Murdoch University
- Publication Details
- Estuarine, Coastal and Shelf Science, Vol.52(1), pp.79-90
- Publisher
- Academic Press
- Identifiers
- 991005540272707891
- Copyright
- © 2001 Academic Press.
- Murdoch Affiliation
- School of Biological Sciences and Biotechnology
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.2 Marine Biology
- 3.2.1182 Coastal Vegetation
- Web Of Science research areas
- Marine & Freshwater Biology
- Oceanography
- ESI research areas
- Plant & Animal Science