1.2 Reef Fishes
1.2.1 SW Wall Reef 30 m
A
ecies, includ
ithi
lt-tra
ts w
ide
d fro
a
meters on the SW Wall Reef (Table 38). The mean number of species
t
nge: 19
ean unda
of fi
within beltt
51.3 Ind/30 m
2
. To
anc uring summer (mean: 293.2
Ind/30 m
2
icantly higher (ANOVA; p = 0.003) than
Ind/30 m ). The temporal difference of total fish abundance was influenced by two of the
numerically dominant species, the blue chromis (Chromis cyanea) and the masked goby
(
us), which p
tistically sig
er summer
abundances (ANOVA; p < 0.0
ies saturatio
rve
be
nse
s
hed 95 % by the fifth transect, but an
mpto
as a
rea
d
(
ould be expec
pe
wou
ave
re
ed w
i
effort. Fish a
r belt-transe
surv
is
ente
as Appendix 4.
An assemblage of 10 sp
4 % of the to
0
meters (Table 38). The blue chromis (Chromis cyanea) was the numerically dominant
species with a study mean abundance of 79.2 Ind/30 m
2
, representing 31.5 % of the total
fish abunda
elt-transect
wrasse, bicolor damselfish, fairy
b
masked, peppermint and sharknos
bies,
wn c mis
the
b
low-head wras
he
of th
me
ly do
ant
a
e at the SW Wall Reef
0 meters. These are all common
s
shallow coral reef
989)
rhaps with th
exception of the creole wrasse, wh
pical of shel
ge re .
Few individuals that are associated
s
e chromis
(Chromis insolata), the Cherubfish (Centropyge argi) and the sargassum triggerfish
(Xanthychtys ringens) were observed in relatively low abundance at a depth of 30 m on
the SW Wall. The seasonal variation of abundance by blue chromis was strongly
i
nce o
re
ed in
dual
ring the summer
(Table 40). Individuals less than 2 c
particularly around sponges
mi
abita
This
y be indicative
total of 62 fish sp
ing 52 present w n be
nsec
ere
ntifie
m
depth of 30
per
ransect was 24.1 (ra
- 31). The study m
ab
nce
shes
ransects was 2
tal fish abund
e d
) was signif
2
during winter (mean: 160.5
Coryphopterus personat
resented sta
nificant high
01). The fish spec
n cu
from lt-tra
cts
urveyed reac
asy
te w
not
che
Figure 17). It w
ted that new fish s cies
ld h
been cord
ith
ncreased survey
bundance data fo
cts
eyed pres
d
ecies accounted for 85.
tal fish abundance at 3
nce within b
s. The creole
asslet, bridled,
e go
bro
hro
and
lue-head and yel
ses comprised t rest
e nu rical
min
fish
ssemblag
at a depth of 3
pecies of
systems (Randall, 1983; Human, 1
, pe
e
ich is more ty
f-ed
efs
with deep reefs, such a the sunshin
nfluenced by prese
f large schools of newly cruit
divi
s du
m in total length formed swarms close to the reef,
and other protective croh
ts.
ma
124
1.2.1 SW Wall Reef 30 m
A
ecies, includ
ithi
lt-tra
ts w
ide
d fro
a
meters on the SW Wall Reef (Table 38). The mean number of species
t
nge: 19
ean unda
of fi
within beltt
51.3 Ind/30 m
2
. To
anc uring summer (mean: 293.2
Ind/30 m
2
icantly higher (ANOVA; p = 0.003) than
Ind/30 m ). The temporal difference of total fish abundance was influenced by two of the
numerically dominant species, the blue chromis (Chromis cyanea) and the masked goby
(
us), which p
tistically sig
er summer
abundances (ANOVA; p < 0.0
ies saturatio
rve
be
nse
s
hed 95 % by the fifth transect, but an
mpto
as a
rea
d
(
ould be expec
pe
wou
ave
re
ed w
i
effort. Fish a
r belt-transe
surv
is
ente
as Appendix 4.
An assemblage of 10 sp
4 % of the to
0
meters (Table 38). The blue chromis (Chromis cyanea) was the numerically dominant
species with a study mean abundance of 79.2 Ind/30 m
2
, representing 31.5 % of the total
fish abunda
elt-transect
wrasse, bicolor damselfish, fairy
b
masked, peppermint and sharknos
bies,
wn c mis
the
b
low-head wras
he
of th
me
ly do
ant
a
e at the SW Wall Reef
0 meters. These are all common
s
shallow coral reef
989)
rhaps with th
exception of the creole wrasse, wh
pical of shel
ge re .
Few individuals that are associated
s
e chromis
(Chromis insolata), the Cherubfish (Centropyge argi) and the sargassum triggerfish
(Xanthychtys ringens) were observed in relatively low abundance at a depth of 30 m on
the SW Wall. The seasonal variation of abundance by blue chromis was strongly
i
nce o
re
ed in
dual
ring the summer
(Table 40). Individuals less than 2 c
particularly around sponges
mi
abita
This
y be indicative
total of 62 fish sp
ing 52 present w n be
nsec
ere
ntifie
m
depth of 30
per
ransect was 24.1 (ra
- 31). The study m
ab
nce
shes
ransects was 2
tal fish abund
e d
) was signif
2
during winter (mean: 160.5
Coryphopterus personat
resented sta
nificant high
01). The fish spec
n cu
from lt-tra
cts
urveyed reac
asy
te w
not
che
Figure 17). It w
ted that new fish s cies
ld h
been cord
ith
ncreased survey
bundance data fo
cts
eyed pres
d
ecies accounted for 85.
tal fish abundance at 3
nce within b
s. The creole
asslet, bridled,
e go
bro
hro
and
lue-head and yel
ses comprised t rest
e nu rical
min
fish
ssemblag
at a depth of 3
pecies of
systems (Randall, 1983; Human, 1
, pe
e
ich is more ty
f-ed
efs
with deep reefs, such a the sunshin
nfluenced by prese
f large schools of newly cruit
divi
s du
m in total length formed swarms close to the reef,
and other protective croh
ts.
ma
124