IJMS-2017v7n8 - page 10

International Journal of Marine Science, 2017, Vol.7, No.8, 67-75
70
2.2.2 Station 2 (Ras Al-Bisha)
The density of zooplankton reached 32856 ind./m
3
in July 2009. It was found that the Copepoda (30368 ind./m
3
)
constituted about 92.4% of the total zooplankton, and the important species were
Acartia pacifica
(9557 ind./m
3
)
(29.1%) and Paracalanidae (8254 ind./m
3
) (25.1%). The second important group was Cirripede larvae (790 ind./m
3
)
(2.4%), then Polychaets and Appendicularia (513 ind./m
3
) (1.6%) of the total zooplankton.
Whereas in March 2010 the density of zooplankton reached 185 ind./m
3
. The Copepoda (51 ind./m
3
) constituted
27.6% of the total zooplankton, It was found the density of Megaloba reached 109 ind./m
3
(58.9%) of the total
zooplankton (Table 1).
2.2.3 Station 3 (Al-Musab)
The density of zooplankton reached 27547 ind./m
3
in July 2009. It was found that the Copepoda (18386 ind./m
3
)
constituted about 66.7% of the
total zooplankton, and the important species were
Acartia pacifica
(1797 ind./m
3
),
Paracalanidae (2549 ind./m
3
), Cyclopoida (1373 ind./m
3
), Nauplii (2614 ind./m
3
),
Acrocalanus
sp. (1275 ind./m
3
)
and
Euterpina
sp. (1209 ind./m
3
). The second important group was Bivalve (6765 ind./m
3
) (24.5%) then Cirripede
larvae (588 ind./m
3
) (2.1%) and Appendicularia (556 ind./m
3
) (2.0%) of the total zooplankton (Table 1).
2.2.4 Station 4 (Khour Abdullah, Buoy 5)
The density of zooplankton reached 4499 ind./m
3
in July 2009. It was found that the Copepoda (3381 ind./m
3
)
constituted about 75.1% of the total zooplankton, and the important species were
Corycaeus sp.
(642 ind./m
3
),
Cyclopoida (654 ind./m
3
), Nauplii (618 ind./m
3
) and Copepodite stages (557 ind./m
3
). The second important group
was Bivalve (412 ind./m
3
) (9.1%) then Rotifers (303 ind./m
3
) (6.7%) of the total zooplankton.
Whereas in March 2010 the density of zooplankton reached 6418 ind./m
3
. The Copepoda (5774 ind./m
3
)
constituted 89.9% of the total zooplankton. The imported groups of copepods was Copepodite stages (2489
ind./m
3
), Paracalanidae (1102 ind./m
3
), Cyclopoida (938 ind./m
3
) and Nauplii (388 ind./m
3
). The second important
group was Polychaetes (163 ind./m
3
) (2.5%) then Foraminifera (122 ind./m
3
) (1.9%) of the total zooplankton
(Table 2).
2.2.5 Station 5 (Khour Abdullah, Buoy 13)
The density of zooplankton reached 5114 ind./m
3
in July 2009. It was found that the Copepoda (4861 ind./m
3
)
constituted about 95.0% of the total zooplankton, and the important groups were Copepodite stages (1649 ind./m
3
)
and Paracalanidae (1093 ind./m
3
) Nauplii (914 ind./m
3
). The second important group was Appendicularia (72
ind./m
3
) (1.4%) of the total zooplankton.
Whereas in March 2010 the density of zooplankton reached 2881 ind./m
3
. The Copepoda (2658 ind./m
3
)
constituted 92.2% of the total zooplankton. The important groups of copepods were Copepodite stages (1674
ind./m
3
), Nauplii (230 ind./m
3
). The second important group was Appendicularia (77 ind./m
3
) (2.7%) then Bivalve
and Fish eggs (55 ind./m
3
) (1.9%) of the total zooplankton (Table 2).
2.2.6 Station 6 (Khour Abdullah, Buoy 29)
The density of zooplankton reached 1223 ind./m
3
in July 2009. It was found that the Copepoda (1094 ind./m
3
)
constituted about 89.4% of the total zooplankton, and the important species were Copepodite stages (439 ind./m
3
),
Nauplii (268 ind./m
3
), Paracalanidae (225 ind./m
3
) and
Acartia pacifica
(96 ind./m
3
). The second important group
was Megaloba (43 ind./m
3
) (3.5%) then Polychaetes (32 ind./m
3
) (2.6%) of the total zooplankton. While at March
2010 the density of zooplankton was 7029 ind./m
3
. The important group Rotifers (6566 ind./m
3
)
(93.4%) then
Copepoda 416 ind./m
3
(5.9%) (Table 2).
2.2.7 Station 7 (Umm Qaser Port)
The density of zooplankton reached 2642 ind./m
3
in June 2009. It was found that the Copepoda (1267 ind./m
3
)
constituted about 47.9% of the total zooplankton, and the important species were Copepodite stages (469 ind./m
3
),
Paracalanidae (297 ind./m
3
) and Nauplii (172 ind./m
3
). The second important group was Megaloba (906 ind./m
3
)
(34.3%) then Polychaetes (141 ind./m
3
) (5.3%) of the total zooplankton. Whereas at March 2010 the density of
1,2,3,4,5,6,7,8,9 11,12,13,14,15,16
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