. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 282 E. PFEILER AND J. J. GOVONI Table III Oxygen consumption (V0_J in metamorphosing Albula sp. leptocephali Temp. (°C) I'0, (fj\ O,rT') SLa(mm) Nb Total WWC (g) Run Adapt. per larva per g WW R:ETSd (±) 9 24-25 23 (±) 21 20-21 19 (±) 21 21-22 20 (±) 20 24-25 21 a Mean standard length (± standard deviation). b TV = total number of larvae in respirometer during the run. c WW = wet weight. d Ratio of wet-wei
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 282 E. PFEILER AND J. J. GOVONI Table III Oxygen consumption (V0_J in metamorphosing Albula sp. leptocephali Temp. (°C) I'0, (fj\ O,rT') SLa(mm) Nb Total WWC (g) Run Adapt. per larva per g WW R:ETSd (±) 9 24-25 23 (±) 21 20-21 19 (±) 21 21-22 20 (±) 20 24-25 21 a Mean standard length (± standard deviation). b TV = total number of larvae in respirometer during the run. c WW = wet weight. d Ratio of wet-weight-specifie I 0, (R = respiration) to ETS activity (see Results). in Table III; mean R:ETS = ) are nonfeeding: the more advanced metamorphosing larvae (last two groups in Table III; mean R:ETS = ) are just beginning to feed. In general, the R:ETS ratio shows species-specific differences with values of or less (Owens and King, 160 140 «j 120 100 O) ^. 80 *- '> S 60 (f) I- UJ 40 20. Wet Wt. (g) Figure 3. Change in wet-weight-specific ETS activity (Mg-at O h ' [g wet wt]"') during metamorphosis in the eel. Myroplm punctalus. Assay temperature = 23°C. Metamorphosis proceeds from right to left along the .v axis (key to symbols: solid = leptocephali: solid/open = glass eels; open = elvers). The four leptocephali, in order of decreasing wet weight, measured 78, 67, 63 and 55 mm total length; total length of glass eels and elvers ranged from 43 to 49 mm and was not related to wet weight. Regression equations are as follows: (leptocephali) r = - ; r = ; N = 4; (glass eels) y = - ; r = ; A' = 6; (elvers) y = - *; r = ; N = 6. All data were obtained from frozen individuals (see Materials and Methods). 1975; Schalk, 1988). In spot (Leiostomusxanthurus) and Atlantic menhaden (Brevoortia tyrannus) larvae, this ratio can be as low as (P. Tester and L. Coston-Clements, per
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
