碩士 / 國立海洋大學 / 漁業科學學系 / 85 / Abstract
This study was to estimate the growth and survival rate of
polylayer cultured Haliotis diversicolor supertexta Lischke in
Kung-Liao in different stocking densities and different layers,
and to estimate the optimal stocking density. The parameters of
von Bertalanffy growth equation in different stocking densities
were estimated as: asymptotic shell length L∞=67.7 mm, growth
coefficient k=0.0053 (1/day), t0=61.16 for 25/basket, L∞=85.97
mm, k=0.0027 (1/day), t0=6.1 for 45/basket, and L∞=122.07 mm,
k=0.001(1/day), t0=-96.91 for 65/basket; in different layers as:
L∞=68.86 mm, k=0.0043 (1/day), t0=42.43 for upper layers and L
∞=153.21 mm, k=0.0011 (1/day), t0=-37.33 for lower layers.
There are significant differences in von Bertalanffy growth
equation, relationship between weight and shell length, absolute
growth rate, survival rate and harvesting weight between
different densities. There are no significant differences in
von Bertalanffy growth equation, relationship between weight and
shell length, survivarate between different layers but absolute
growth rate and harvesting weight. The results indicate that
the effect of density are more than that of layer on growth of
H. diversicolor supertexta. The growth rate varied with water
temperature when it was out of the optimal range. No
significant influence of environmental factors on growth was
found because salinity, dissolved oxygen and PH during this
study period were in the optimal range for H. diversicolor
supertexta. The stocking density for optimal gwth and
harvesting weight is 40/basket; the optimal density for total
harvesting weight is 65/basket.
Key words: Haliotis diversicolor supertexta Lischke, growth,
density, polylayer, survival rate, optimal stocking density
| Identifer | oai:union.ndltd.org:TW/085NTOU0451004 |
| Date | January 1997 |
| Creators | Chen, Wei Ke, 陳威克 |
| Contributors | Kung Ming Liu, 劉光明 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 63 |
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