FishBase |
Main Ref: | Watson, W. and E.M. Sandknop 1996 |
max | min | mod | Ref. | |
Length at birth (mm) | 2 | 35602 | ||
Preanal L. % TL |
Place of development | planktonic | |||
Larval area | California Current region (including the Gulf of California) | |||
Yolk-sac | ovoid unpigmented | Ref: | ||
Yolk | segmented | Oil globules | no oil globule | |
Rows on tail | ventral row | |||
Other melanophores on tail | no other melanophores | |||
Melanophores on head + trunk | melanophores on trunk | |||
Pigmentation: few dorsolaterally on foregut and ventrally on hindgut and tail near end of stage. |
Striking feature | none | |||
Striking shape lateral | short and/or deep | dorsal | ||
Striking feature | none | |||
Shape of gut | ||||
Gas bladder early | pigmented | late | pigmented | |
Spinal armature early | no spines | late | no spines | |
Pigmentation early | ||||
Rows on tail | ventral row | |||
Other melanophores on tail | no other melanophores | |||
Melanophores on head + trunk | melanophores on trunk | |||
Pigmentation late | ||||
Rows on tail | ventral row | |||
Other melanophores on tail | no other melanophores | |||
Melanophores on head + trunk | melanophores on head + trunk | |||
Urostyle region early | unpigmented | late | unpigmented | |
Peritoneum | with row of melanophores | |||
Pectorals | normal without melanophores | |||
Pelvics | normal (i.e. small or absent) without melanophores | |||
Dorsal fin inserts at postanal myomere 2-4 (above anal fin rays 5-8) through postflexion stage; hindgut coils and snout becomes elongate and pointed during transformation; no dorsal hindgut pigment before 18 mm. Pigmentation: Preflexion-flexion: 1-3 on isthmus; 0-1 on cleithrum; 1-4 dorsolaterally on foregut; pair posterodorsally on gas bladder; 4-6 each on ventral margins of hindgut and tail; little ventrally on caudal region. Postflexion: external dorsally onhead at about 21 mm; on opercle at 18 mm; internally on brain by 21 mm; increasing on isthmus, cleithrum, gas bladder, ventral margin of tail, and caudal fin after 18 mm; decreasing to 0-2 ventrally on gut by 14 mm; increasing dorsally and dorsolaterally on gut after about 19 mm; internally in caudal peduncle after 18 mm; on dorsal margin beginning posteriorly after 21 mm. Transformation: on snout and increasing on head at 23 mm; heavy on gut; spreading cephalad on dorsal margin; laterally on trunk and tail. Sequence of fin development: dorsal and anal, caudal, pelvics, pectorals. |
max | min | mod | Ref. | |
Total number of myomeres | 43 | 40 | 35602 |
L 1st feeding | Ref. | Months of presence of larvae | ||||
max | Jan | Feb | Mar | Apr | ||
min | May | Jun | Jul | Aug | ||
mod | Sep | Oct | Nov | Dec |
Water parameters Metric characters |
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