State of the Bay Report 2011-Final.pdf - Anchor Environmental
State of the Bay Report 2011-Final.pdf - Anchor Environmental
State of the Bay Report 2011-Final.pdf - Anchor Environmental
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<strong>State</strong> <strong>of</strong> Saldanha <strong>Bay</strong> & Langebaan Lagoon <strong>2011</strong><br />
Fish<br />
Table 9.3.<br />
Average abundance <strong>of</strong> fish species (number.m -2 ) recorded during annual beach seine-net surveys in Langebaan Lagoon. SE = standard error.<br />
Species Apr&Jun Apr-94 Oct-05 Apr-07 Apr-08 Apr-09 Apr-10 Apr-11<br />
Common name 1986-87 SE Ave SE Ave SE Ave SE Ave SE Ave SE Ave SE Ave SE<br />
A<strong>the</strong>rina breviceps silverside 1.1916 0.2595 1.1865 0.3068 0.0524 0.0246 0.0786 0.0335 0.1416 0.0492 0.0654 0.0267 0.1206 0.0377 0.2857 0.11<br />
Blennophis blenny sp. 0.0001 0.0001<br />
Caffrogobius sp. goby 0.0888 0.0530 0.0608 0.0184 0.1776 0.1267 0.3072 0.1262 0.0626 0.0150 0.0748 0.0335 0.0973 0.0318 0.3764 0.14<br />
Cheilidonichthys capensis gurnard 0.0020 0.0010 0.0038 0.0019 0.0001 0.0001<br />
Clinus latipennis False <strong>Bay</strong> Klipvis 0.0163 0.0085 0.0001 0.0001 0.0002 0.0002<br />
Clinus superciliosus super klipvis 0.0698 0.0369 0.0063 0.0038 0.0006 0.0005 0.0031 0.0029<br />
Diplodus sargus capensis black tail 0.0120 0.0111 0.0003 0.0002<br />
Heteromycteris capensis Cape sole 0.0009 0.0004 0.0014 0.0007 0.0027 0.0033 0.0331 0.0139 0.0145 0.0083 0.0148 0.0080 0.003 0.001<br />
Lichia amia leervis 0.0002 0.0002<br />
Liza richardsonii harder 0.2452 0.0971 0.7182 0.1941 0.3452 0.1453 3.8468 3.3679 0.1548 0.1066 0.3750 0.0980 9.5032 7.4567 1.572 0.54<br />
Parablennius cornutus blenny 0.0002 0.0002<br />
Pomatomus saltatrix elf 0.0001 0.0001 0.0002 0.0002 0.0013 0.001<br />
Poroderma africana striped catshark 0.001 0.001<br />
Psammogobius knysnaensis Knysna sand gobi 0.0958 0.0455 0.4916 0.1487 0.1411 0.0457 0.6768 0.2501 0.2237 0.0700 0.2736 0.0661 0.1691 0.0336 0.1176 0.08<br />
Rhabdosargus globiceps white stumpnose 0.0009 0.0008 0.0055 0.0025 0.0001 0.0001 0.2016 0.2170 0.0354 0.0293 0.0263 0.0167 0.2445 0.1582 0.0959 0.04<br />
Rhabdosargus holubi Cape stumpnose 0.0114 0.01<br />
Rhinobatos blockii bluntnose guitar fish 0.0176 0.0100 0.0011 0.0006 0.0008 0.0004 0.0065 0.0032 0.0005 0.0005<br />
Solea bleekeri blackhand sole 0.0006 0.0003 0.0004 0.0003 0.0003 0.0002 0.0001 0.0001 0.0003 0.0003<br />
Spondyliosoma emarginatum steentjie 0.0001 0.0001 0.0009 0.0009 0.0001 0.0001 0.0006 0.0006<br />
Syngnathus temminckii pipe fish 0.0063 0.0025 0.0007 0.0004<br />
Trachurus trachurus horse mackerel 0.0001 0.0001<br />
Total 1.71 0.30 2.49 0.431 0.69 0.18 5.12 3.20 0.65 0.16 0.84 0.13 10.15 7.44 2.4658 0.52<br />
Number <strong>of</strong> species 21 9 14 11 8 11 11 9 12<br />
Number <strong>of</strong> hauls 128 30 20 12 9 15 13 15 14<br />
Total area sampled(m 2 ) 67725 18000 7125 7200 6000 9000 6150 11325 2925<br />
201<br />
ANCHOR<br />
e n v i r o n m en t a l
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