. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. DETERMINANTS OF LARVAL MOLTING 573 • - IO- CS- § « c ^ u. o e ^. - Weight at Apoiysis to Fourth Instor (g) Figure 3. Weight of larvae at the time of apoiysis to the fifth instar as a function of the weight at the time of apoiysis to the fourth instar. Larvae were maintained on steady-weight regimens during the third-instar and fed ad lib thereafter. The duration of the fourth-instar for larvae initiating metamorphosis at the end of the fifth instar (solid diamonds) was typically one day lon
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. DETERMINANTS OF LARVAL MOLTING 573 • - IO- CS- § « c ^ u. o e ^. - Weight at Apoiysis to Fourth Instor (g) Figure 3. Weight of larvae at the time of apoiysis to the fifth instar as a function of the weight at the time of apoiysis to the fourth instar. Larvae were maintained on steady-weight regimens during the third-instar and fed ad lib thereafter. The duration of the fourth-instar for larvae initiating metamorphosis at the end of the fifth instar (solid diamonds) was typically one day longer than that for those molting to a supernumerary larval instar at the end of the fifth (clear circles). This accounts for their significantly greater proportionate weight increase in the fourth instar; but careful analysis of the growth data through the fourth instar fail to suggest a reason for this additional day of growth. Is molting by malnourished larvae gated by the photocycle? We inquired whether the initiation of larval molting at the conclusion of the fourth instar was coupled to the photocycle under conditions of malnutrition as it. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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