Suspension Feeders on Sandy Beaches
f i -
R
I
D
Fig. 3.1. General trends of species richness, abundance
and biomass of the sandy beach macroinfauna vs.
morpho dynamic beach type. R, I, D reflective,
intermediate and dissipative beaches (see text)
I 160000,_--------------~
Q)
o
c
o
-0
C
:::l
..0
o
6,_---------------,
E
"'0 120000
c
~ 80000
c
o
-g 40000 •
:::l
•
• •
•
•
•
~
O~ .. ~~~_.~r_._,_~
~
I E
01
II)
II)
o
E
o
:0
a
o
1600
1200
800
400
•
3
•
•
• •
., ..
6
n
9
12
•
O~_.~--~r_T·~_.~~
0 3 6
n
9
12
01
.2
II)
II)
o
E
o
..0
01
o
b
5
4
3
2
1
O;---.----.---r--~
o
1
BSI
2
4,_---------------.
3
2
o
1
BSI
2
63
Fig. 3.2. Sandy beach macroinfauna from the Chilean coast. Abundance and biomass of
the total macroinfauna vs. beach types defined by Dean's parameter (0) (a) and beach
state index (BSI) (b). The regression lines are from McLachlan et al. (1996);
y= 0.39+ 2.55 x for abundance and y=-0.34+ 2.12 x for biomass