Journal article
Larval development of Nannatherina balstoni Regan (Nannopercidae), with a description of ontogenetic changes in diet
Ecology of Freshwater Fish, Vol.7(3), pp.132-139
1998
Abstract
This article describes the larval development and ontogenetic changes in diet of Nannatherina balstoni and constitutes the first description of flexion and postflexion larvae for the family Nannopercidae. Larvae were collected from pools in southwestern Australia. Larvae are elongate to moderately deep, lack head spines, have a moderate to large head and are moderately to heavily pigmented. Notochord flexion is complete by approximately 11 mm, i. e., longer than in members of the closely related Percichthyidae (≤ 9 mm). The sequence of fin completion, C, D2, A, D 1→P1→P2, also differs to that reported for percichthyids, but is the generalized condition within the percoids. The retention of a prominent notochord tip in postflexion larvae of N. balstoni is a characteristic that occurs in few teleosts. Nannatherina balstoni exhibits marked ontogenetic changes in diet. Larvae feed predominantly on cladocerans, copepods and dipteran larvae, whereas juveniles and adults ingest a large proportion of terrestrial fauna.
Details
- Title
- Larval development of Nannatherina balstoni Regan (Nannopercidae), with a description of ontogenetic changes in diet
- Authors/Creators
- H.S. Gill (Author/Creator) - Murdoch UniversityD.L. Morgan (Author/Creator) - Murdoch University
- Publication Details
- Ecology of Freshwater Fish, Vol.7(3), pp.132-139
- Publisher
- Blackwell Publishing Inc.
- Identifiers
- 991005539996607891
- Copyright
- 1998 Munksgaard
- Murdoch Affiliation
- School of Biological Sciences and Biotechnology
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.2 Marine Biology
- 3.2.62 Freshwater Fish Ecology
- Web Of Science research areas
- Fisheries
- Marine & Freshwater Biology
- ESI research areas
- Plant & Animal Science