The taxonomic pattern on Takapoto
from
Jean-Pierre Rochette, "Service de la Mer", Tahiti
The
number os individuals of the various species forming the
meso-zooplankton are given in the accompanying tables. The
copepoda Paracalanus parvus ar by far the largest component
of the biomass: 1157 ±
129 individuals were counted m-3. Chaetognatha of
the species Sagita enflata were observed, numbering
16.4 ±
3.5 individuals m-3.
Gasteropod larvae were abundant: 52 ±
13 individuals m-3.
The
following tables give the abundance
of the taxa constituting the meso-zooplankton:
with:
M=mean,
SE. = Standard Error, (n) = nb. observations
1.
Abundance
of the various taxa constituting the meso-zooplankton (the
number of individuals per m3) in November 1993
|
|
Taxa
|
M
|
S.E.
|
(n) |
| HOLOPLANKTON |
|
CHAETHOGNATHES |
Sagitta
enflata
Sagitta
océania |
16.4
1.5 |
3.5
0.2 |
6
6 |
|
Total
|
|
17.9 |
|
|
APPENDICULARIANS |
Oikopleura
fusiformis |
0.2 |
0.2 |
6 |
|
Total
|
|
0.2 |
|
|
COPEPODS |
Acartia
fossae
Calanopia
minor
Undinula vulgaris(m)
Undinula vulgaris(f)
Undinula vulgaris(f.sp)
Undinula
vulgaris stage 5
Paracalanus
parvus |
0.2
4.2
0.2
0.3
0.1
0.2
1157.2 |
0.1
1.8
0.1
0.2
0.1
0.1
128.9 |
6
6
6
6
6
6
6 |
|
Total
|
|
1162.4 |
|
|
Total
HOLOPLANKTON
|
|
1180.5 |
|
| |
Taxa |
M |
S.E. |
(n) |
| MEROPLANKTON |
| |
Crustacean
larvae
Ostracode philomedine
"Zoé de Brachyoure"
Gasteropod larvae
Bivalves
Fish larvae
Round fish eggs
Linuche
unguiculata
(larva) |
1.3
0.7
0.4
51.9
5.6
0.6
0.1
2.8 |
0.4
0.3
0.2
13.5
1.4
0.1
0.0
0.5 |
6
6
6
6
6
6
6
6 |
|
Total
MEROPLANKTON
|
|
63.4 |
|
2.
Abundance
of the various taxa constituting the meso-zooplankton (the
number of individuals per m3) in february 1994
at 9h
|
|
Taxa
|
M
|
S.E.
|
(n) |
| DAY
HOLOPLANKTON |
|
CHAETHOGNATHES |
Sagitta
enflata
Sagitta
océania |
30.5
1.7 |
11.9
0.7 |
8
8 |
|
Total
|
|
32.2 |
|
|
APPENDICULARIANS |
Oikopleura
fusiformis |
6.9 |
2.8 |
8 |
|
Total
|
|
6.9 |
|
|
COPEPODS |
Acartia
fossae
Calanopia
minor
Undinula vulgaris(m)
Undinula vulgaris(f)
Undinula vulgaris(f.sp)
Undinula
vulgaris stage 5
Paracalanus
parvus |
6.5
14.4
1.5
1.0
1.3
1.5
1019.0 |
1.2
3.4
0.5
0.4
0.6
0.6
170.3 |
8
8
8
8
8
8
8 |
|
Total
|
|
1045.2 |
|
|
Total
HOLOPLANKTON
|
|
1084.3 |
|
| |
Taxa |
M |
S.E. |
(n) |
| MEROPLANKTON |
| |
Crustacean
larvae
Ostracode philomedine
"Zoé de Brachyoure"
Gasteropod larvae
Bivalves
Fish larvae
Round fish eggs
Linuche
unguiculata
(larva) |
1.3
4.4
0.9
154.4
58.2
0.5
0.3
4.1 |
0.2
1.1
0.1
48.5
17.1
0.2
0.1
0.9 |
8
8
8
8
8
8
8
8 |
|
Total
MEROPLANKTON
|
|
224.1 |
|
3. Abundance
of the various taxa constituting the meso-zooplankton (the
number of individuals per m3) in february 1994
at 17h30
|
|
Taxa
|
M
|
S.E.
|
(n) |
| DAY
HOLOPLANKTON |
|
CHAETHOGNATHES |
Sagitta
enflata
Sagitta
océania |
31.1
3.5 |
7.3
0.7 |
6
6 |
|
Total
|
|
34.6 |
|
|
APPENDICULARIANS |
Oikopleura
fusiformis |
6.9 |
2.7 |
6 |
|
Total
|
|
6.9 |
|
|
COPEPODS |
Acartia
fossae
Calanopia
minor
Undinula vulgaris(m)
Undinula vulgaris(f)
Undinula vulgaris(f.sp)
Undinula
vulgaris stage 5
Paracalanus
parvus |
5.0
17.2
2.7
1.1
2.3
0.9
2008.1 |
6.6
5.3
1.1
0.5
1.0
0.3
447.8 |
6
6
6
6
6
6
6 |
|
Total
|
|
2037.3 |
|
|
Total
HOLOPLANKTON
|
|
2078.2 |
|
| |
Taxa |
M |
S.E. |
(n) |
| MEROPLANKTON |
| |
Crustacean
larvae
Ostracode philomedine
"Zoé de Brachyoure"
Gasteropod larvae
Bivalves
Fish larvae
Round fish eggs
Linuche
unguiculata
(larva) |
2.1
3.4
1.4
235.2
55.4
0.6
0.6
2.9 |
0.4
1.0
0.3
40.9
10.5
0.2
0.1
0.5 |
6
6
6
6
6
6
6
6 |
|
Total
MEROPLANKTON
|
|
301.6 |
|
|
