## Abstract Gill development begins on the sixth day of incubation at 10^ยฐ^C and is complete by 31 days (hatching). Gill arches are formed by fusion and perforation of ectoderm and endoderm across the pharyngeal wall. A primary branchial artery forms within each arch and a second branchial artery f
Na-ATPase and NaK-ATPase activities in gills of rainbow trout (Salmo gairdneri)
โ Scribed by Pfeiler, Edward
- Publisher
- Springer-Verlag
- Year
- 1978
- Tongue
- English
- Weight
- 700 KB
- Volume
- 124
- Category
- Article
- ISSN
- 0174-1578
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## Abstract A histological study was undertaken on the jaws of three rainbow trout (__Salmo gairdneri__) for which the previous dental record of each tooth position had been obtained by taking wax impressions of the jaws twice weekly. This has provided accurate data concerning the time sequence of