Table 1 Age of fish analyzed (dpf), rearing temperature, and timing of early life history phenotypic changes (dpf).

From: Single cones give rise to multi-cone types in the retinas of fishes

Species

Days post-fertilization (dpf) examined

Rearing temp. (ºC)

External changes (dpf)

Atlantic halibut

96, 103, 110, 117

7.5

Hatch (14), yolk absorbed (64), start of eye migration (96), end of eye migration (117)

Sablefish

10, 14, 34, 38, 42, 44, 50, 87, 97

5.5

Hatch (14), yolk absorbed (64)

Senegalese sole

2, 3, 5, 7, 10, 12, 14, 15, 24, 25

18.5

Hatch (2), yolk absorbed (5), start of eye migration (11), end of eye migration (25)

European anchovy

2, 3, 4, 6, 8, 10

20

Hatch (2), yolk absorbed (5)

Rainbow trout

27, 28, 29, 30, 31, 32, 33, 34, 35, 46, 74, 85

10

Hatch (33), yolk absorbed (80)

Three-spined stickleback

5, 9, 10, 12, 15, 32

17

Hatch (10), yolk absorbed (15)

Zebrafish

2, 4, 8, 15

28.5

Hatch (2), yolk absorbed (5)

  1. The start of external feeding occurred closer to completion of yolk sac absorption. Samples were gathered to observe early cone differentiation which starts following the onset of eye pigmentation (i.e., the presence of retinal pigment epithelium granules), changes in the cone mosaic of the central retina throughout the yolk period, and in the juvenile. The peripheral retina of some larvae and of the juvenile was also examined, as was that of adult Atlantic halibut.
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