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Egg and larval development of laboratory‐reared striped trumpeterlatris lineata(forsterinbloch and schneider 1801) (percoidei: Latridiidae) from Tasmanian waters

 

作者: DianneM. Furlani,   FrancesP. Ruwald,  

 

期刊: New Zealand Journal of Marine and Freshwater Research  (Taylor Available online 1999)
卷期: Volume 33, issue 2  

页码: 153-162

 

ISSN:0028-8330

 

年代: 1999

 

DOI:10.1080/00288330.1999.9516865

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

Description of striped trumpeter(Latris lineata(ForsterinBloch and Schneider 1801)) eggs and larvae, previously described in summary only, is provided and illustrated from laboratory‐reared material. Laboratory fertilised eggs are round, 1.26–1.44 mm diameter, with a single, pigmented oil globule 0.27–0.29 mm diameter in an unsegmented yolk. Early‐stage embryos are pigmented on trunk and tail dorso‐laterally, forming a dorsal and ventral pigment band in late‐stage embryos. Hatching occurs 7–8 days post‐fertilisation in 12°C. Larvae are 2.8–3.5 mm body length (BL) at hatching with a voluminous finfold, large yolk sac with centrally‐placed oil globule, distinct pigmentation pattern, and no head spines. Flexion occurs from 5.6 to 8.7 mm BL. Fin formation commences from 6.6 mm BL in the sequence caudal, dorsal and anal (simultaneously), pectorals and pelvics. Myomeres number 33–39. Larvae are pigmented predominantly on the head, dorsal and ventral surfaces of trunk and tail, and gut ventrally, with melanophores also on upper and lower jaws. Larvae survived to 45 days post‐fertilisation, 11.9 mm BL, with complete fin‐formation of the caudal fin only. Similarities are noted betweenL. lineatalarvae and aplodactylid, bovichtid, cheilo‐dactylid, chironemid, sillaginid, and tetragonurid larvae. A small number ofL. lineatalarvae were also caught inshore and at shelf edge on the Tasmanian west coast in late winter/early spring (September/ October).

 

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