82
3. MEASURING GROWTH AND FORM
Fig. 3 .13 . Mill epora alcieornis. Plots of
1·40
1·40
the morphological measurements da, db ,
b_angle, g_angle, rb, and Dj,ox against
1.20
1.20
depth. Mean values are indicated with an
' .
, ,
asterisk and the standard dev iation with
1.00
:::.:<
1.00
a dashed line. Values of the regres sion
E
E
~ 0.80
' ,
~ 0 .80
coefficient re are listed in Table 3.2.
-§
*
r
' ,
-<>
T t: ""
0.60
"
0 .60
' r'
' ,
~
0,40
x
I
0· 40
I
:}
. ,
;~
1i* 'f
0.20
0 .20
*
!
' ,
*
' ,
-25
-20
-1 5
-1 0
- 5
0
- 25 - 20
- 15
- 10
- 5
0
depth (m)
depth (m)
3·0 0
3·00
2·50
2.50
S
S
'" 2.0 0
I
' ' ee 2.00
..::.
r *
' ' ..::.
'"
r
,'
I
x
I
X
I
~
~
X
*
~
I
~I
1.50
I
x '
1.50
x
Jx
r' "
r
I
'f
*
I
:><:
I:
,
J:
:*:
x
1.00
,
1.00
*
0 ·50
0 ·50
-25
-20
-15
-10
-5
0
-25
-20
-15
-10
-5
0
depth (m)
depth (m)
3·50
2.00
3·00
1.80
2·50
1 *
1.6 0
E
2.0 0
i
,
i
~
*
I'
Q
-<> 1.50
** *
x:
1.40
....
r
r
' ' I
,
1.00
r
* *
,
cc
1.20
' *' *
0 .50
x
><
-25
- 20
- 15
- 10
-5
0
-25
- 20
- 15
-10
-5
0
dep th (m)
depth (m)
Table 3.2. Values of the regre ssion coefficient rc, obtained from morphological measurements versus "exposure to water movement
estimate" plot s, carried out in the three investigated species. The hypothesis that re =0 was tested against the alternatives th at
re < 0 and re > 0 (re = 0 .0 indicates that the hypothesis is accepted).
da
db
b_angle
g_angle
rb
br_spacing
Dj, ox
Mill epora alcieornis
0 .02
0 .01
0 .0
0.0
0 .03
0 .02
-0.006
Pocillopora dam ieornis
0 .07
0 .04
0.0
0 .0
0 .11
0 .11
-0.037
Haliclona oeulata
0 ·94
0 .65
0.0
0.87
- 1.17
- 2· 55
-0·472