The Autecology of Eudiaptomus cf drieschi (Poppe & Mrazek 1895 ...

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a). b). Figure 15: a). Resting egg extracted from bottom sediments (distortion from drying process). b). Subitaneous egg from clutch of adult female (distortion from drying process).
3.6 Development Development Time Development time (number of days required) of Eudiaptomus drieschi life stages at the different experimental temperatures are shown in Table 4. It can be seen that development times are longer in animals that were reared at low temperatures, than those reared at higher temperatures This is compatible with previous work by Geiling and Campbell 1972, Landry 1975, Kamps 1978, Ban 1994, and Klein Breteler et al. 1994. E. drieschi reared at high temperatures (>24 0 C), did not produce eggs, became covered in fungus and died. Table 4: Mean stage development time in days (average percent) with standard deviations of Eudiaptomus drieschi at experimental temperatures, (N=19,20) Temperature 12 0 C 15 0 C 18 0 C 22 0 C egg 10.60 (3.89) 4.58 (1.24) 1.11 (0.24) 0.85 (0.09) NI 2.65 (0.46) 1.71 (0.55) 0.88 (0.10) 0.93 (0.10) NII 3.18 (0.66) 1.74 (0.54) 1.23 (0.34) 1.00 (0.19) NIII 3.18 (0.59) 1.78 (0.44) 1.29 (0.30) 1.24 (0.26) NIV 3.25 (0.73) 1.72 (0.48) 1.33 (0.41) 1.33 (0.32) NV 3.13 (0.86) 1.79 (0.48) 1.60 (0.50) 1.32 (0.29) NVI 3.23 (0.61) 1.84 (0.24) 1.56 (0.37) 1.48 (0.40) CI 2.50 (0.85) 1.65 (0.40) 1.05 (0.33) 0.92 (0.17) CII 2.95 (0.68) 2.04 (0.70) 1.42 (0.30) 0.95 (0.21) CIII 2.95 (0.69) 2.05 (0.55) 1.45 (0.30) 1.06 (0.24) CIV 3.03 (0.51) 2.15 (0.73) 1.51 (0.41) 1.10 (0.28) CV 3.11 (0.93) 2.36 (0.74) 1.68 (0.43) 1.15 (0.25) There were clear differences in duration of embryonic development at low temperatures. Duration was longest (10.6 + 3.89 days) at 12 0 C. Development times ranged from 4.58 + 1.2, 1.11 + 0.24 and 0.85 +0.09 days for 15, 18 and 22 0 C respectively. As temperature increased, eggs developed more rapidly; day at 22 0 C. Early naupliar (NI-NIII), and copepodite stages (CI-III) have shorter (p
Page 1 and 2: The Autecology of Eudiaptomus cf dr
Page 3 and 4: Table of Contents Page Abstract Res
Page 5 and 6: Abstract Prior to the mid-eighties,
Page 7 and 8: occupying a niche and using its ada
Page 9 and 10: 1. General Introduction 1.1 Kinnere
Page 11 and 12: Over 30 different zooplankton speci
Page 13 and 14: The National Water Carrier, which w
Page 15 and 16: (Baird 1859); Arctodiaptomus (Arcto
Page 17 and 18: 2. Methods and Materials 2.1 Season
Page 19 and 20: (>20 µm) and nano (20 m) and nano
Page 21 and 22: Stock preparations Females with rip
Page 23 and 24: when the population meets condition
Page 25 and 26: 2.4.4. Food Requirements Mature adu
Page 27 and 28: c) b) a) d) e) • Figure 2: a) fem
Page 29 and 30: 23 The female antennules are symmet
Page 31 and 32: 25 Monthly Copepod Biomass 25.0 20.
Page 33 and 34: E. drieschi has a strong seasonal p
Page 35 and 36: Total Number of Organisms, L -1 80
Page 37 and 38: decline of E. drieschi in the water
Page 39 and 40: Average Depth of Individual = x 1 z
Page 41 and 42: Resting Egg Distribution in the Sed
Page 43: ) c) Figure 14: (a) resting egg fro
Page 47 and 48: Development Rate Post-embryonic dev
Page 49 and 50: 3.7 Salinity tolerance Survival of
Page 51 and 52: 4. Discussion 4.1 Taxonomical Posit
Page 53 and 54: 4.2 Ecological Implications of Deve
Page 55 and 56: seasonal abundance or intra-specifi
Page 57 and 58: distinguish resting eggs from subit
Page 59 and 60: ability as copepods mature. Diaptom
Page 61 and 62: 4.5.2 Temperature Temperature has b
Page 63 and 64: 4.5.3 Food Calanoid copepods in gen
Page 65 and 66: chloride. Between 1955-69, salinity
Page 67 and 68: This study offered the rare (and fo
Page 69 and 70: Beeton, A. M. (1981) General introd
Page 71 and 72: DeFrenza, J., Kirner, R.J., Maly, E
Page 73 and 74: Gophen, M. 1977. Food and feeding h
Page 75 and 76: Hanazato, T. and Yasuno, M. 1989. I
Page 77 and 78: Kawabata, K. 1989. Natural developm
Page 79 and 80: Norrbin, M.F. 1994. Seasonal patter
Page 81 and 82: copepod species in the eastern Wedd
Page 83 and 84: Implications for diel vertical migr
Page 85 and 86: האאוטאקולוגיה של (Po
Page 87 and 88: והוטלו שנה קודם לכך
Page 89: האאוטאקולוגיה של (Po

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