International Journal of Marine Science 2016, Vol.6, No.27, 1-22
9
No.
Family
Species
Common name
Occurrence
AFL
AFP
SFL
SFP
31
Scombridae
Auxis thazard
Frigate tuna
x
x
√
√
32
Orcynopsis unicolor
Plain bonito
x
√
x
X
33
Scomber japonicus
Chub mackerel
√
x
√
√
34
35
Sepiidae
Scomberomorus tritor
Sepia officinalis
Spanish mackerel
Common cuttlefish
x
√
√
√
x
x
X
√
36
Soleidae
Bathysolea albida
Rock sole
x
√
x
X
37
Sparidae
Boobs boops
Bogue
x
x
√
√
38
Sphyraenidae
Sphyraena sphyraena
Barracuda
√
√
√
X
39
Stromateidae
Stromateus fiatola
Butterfish
√
√
x
X
40
Tetraodontidae
Ephippion guttiffer
Prickly puffer
√
√
x
√
41
Lagocephalus laevigatus
Smooth puffer
√
√
x
X
Total
Number of
Families = 22
Number of species = 41
25
28
13
12
Legend: √ = present. x = absent. AFL = Artisanal fishery lean season. AFP = Artisanal fishery peak season. SFL = Semi-industrial
fishery lean season. SFP = Semi-industrial fishery peak season
Selene dorsalis
and
Brachydeuterus auritus
were the most abundant species in the artisanal fishery with relative
abundances of 34.72% and 23.38% respectively, as shown in Table 3. In the lean season,
S. dorsalis
accounted for
half of the fish catch composition with a relative abundance of 50.98% followed by
B. auritus
.
B. auritus
however
dominated in the peak season with a relative abundance of 26.56% over 24.48% for
S. dorsalis
. New species were
also recorded in the peak season such as
Bathysolea albida
,
Rhinobatos rhinobatos
,
Chaetodipterus lippei
,
Orcynopsis unicolor
, and
Penaeus notialis
, which were hitherto not recorded in the lean season, in relative
abundances of 0.04%, 0.04%, 0.09%, 0.62% and 2.83% respectively.
Callinectes sapidus
, a crustacean, which was
in relative abundance of 0.04% in the lean season increased to 3.54% in the peak season. The differences between
the relative abundances of species in the two seasons in the artisanal fishery were however found to be not
significant (Kruskal-Wallis H test, df=1, P > 0.05).
Table 3: Species composition and relative abundance of species and families found in the artisanal fishery for year 2013
FAMILY
Relative
abundance
of families
(%)
Species observed
Abundance
in lean
season
(numbers)
Relative
abundance in
lean season
(%)
Abundance in
peak sea son
(number)
Relative
abundance in
peak season
(%)
CARANGIDAE
44.00
Caranx hippos
78.00
2.740
0.350
Chloroscombrus chrysurus
82.00
2.880
320.0
7.070
Decapturus rhoncus
4.000
0.140
20.00
0.440
Selene dorsalis
1452
50.98
1108
24.48
Trachinotus ovatus
51.00
1.790
110.0
2.430
Trachinotus teraia
28.00
0.980
4.000
0.090
SCIAENIDAE
10.00
Pseudotolithus brachygnatus
10.00
0.350
0.000
0.000
Pseudotolithus senegalensis
13.00
0.460
92.00
2.030
Pseudotolithus typus
5.000
0.180
0.000
0.000
