University of Tasmania
Browse

File(s) not publicly available

Morphological development of the swim bladder in hatchery-reared striped trumpeter Latris lineata

journal contribution
posted on 2023-05-16, 15:06 authored by Andrew TrotterAndrew Trotter, Pankhurst, PM, Battaglene, SC
This study examined swim bladder morphogenesis in three cohorts of striped trumpeter (Latris lineata), a euphysoclist species with physostomous larvae. The swim bladder was first discernible 1-2 days after hatching as an evagination on the dorsal surface of the incipient digestive tract. It comprised a cluster of mesenchymal cells surrounding an inner primordium of epithelial cells. At mouth opening in larvae of 5.3 mm standard length (SL), the swim bladder was noticeably enlarged. Histologically, the swim bladder lumen was dilated and liquid filled. The pneumatic duct was first seen during the dilation stage and the rete mirabile began forming among the connective tissue surrounding the swim bladder. Initial swim bladder inflation occurred on day 11 post-hatching in Cohort 1, at 14°C, and day 9 post-hatching, in Cohorts 2 and 3, at 16°C. Histologically, the lumens of inflated swim bladders were ellipsoid and the epithelium was squamous, except for cuboidal gas gland cells at the anterio-ventral and anteriolateral regions of the swim bladder. During the initial inflation interval the pneumatic duct was dilated in larvae both with and without swim bladder inflation. The pneumatic duct began to regress in some larvae over 7.5 mm SL. The swim bladder of striped trumpeter was similar to larvae of other altricial perciform marine fish in respect to organ derivation, tissue differentiation, luminal dilation and initial gaseous inflation. However, variations, particularly the delay in initial swim bladder inflation until after the start of feeding, were observed that could be fundamental to problems encountered during larval rearing. © 2004 Blackwell Verlag, Berlin.

History

Publication title

Journal of Applied Ichthyology

Volume

20

Issue

5

Pagination

395-401

ISSN

0175-8659

Department/School

Institute for Marine and Antarctic Studies

Publisher

Blackwell Verlag GmbH

Place of publication

Berlin, Germany

Repository Status

  • Restricted

Socio-economic Objectives

Fisheries - aquaculture not elsewhere classified

Usage metrics

    University Of Tasmania

    Categories

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC