21.03.2013 Views

Fisheries - Enviro Dynamics Namibia

Fisheries - Enviro Dynamics Namibia

Fisheries - Enviro Dynamics Namibia

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

F I S H E R I E S , M A M M A L S A N D S E A B I R D S S P E C I A L I S T S T U D Y<br />

Table 9. Breakdown of fleet composition by gross registered tonnage (GRT)<br />

GRT<br />

Hake longline Hake<br />

Number of times<br />

this GRT group<br />

entered the MLA<br />

+ Zone 1<br />

(cumulative to<br />

25km)<br />

Average<br />

for all the<br />

years<br />

2006 2010<br />

GRT<br />

group<br />

Final Report<br />

<strong>Namibia</strong>n Marine Phosphate (Pty) Ltd.<br />

Number of times<br />

this GRT group<br />

entered the MLA<br />

+ Zone 1<br />

(cumulative to<br />

25km)<br />

Average<br />

for all the<br />

years 2004<br />

2009<br />

Page 77<br />

GRT<br />

Horse mackerel<br />

Number of times<br />

this GRT group<br />

entered the MLA +<br />

Zone 1<br />

(cumulative to<br />

25km)<br />

Average<br />

for all the<br />

years 1997<br />

2011<br />

Monk<br />

Number of<br />

trawls in the<br />

MLA+ Zone 1<br />

(cumulative<br />

to 25 km)<br />

Small<br />

pelagics<br />

Number of<br />

shoots in the<br />

MLA+ Zone 1<br />

(cumulative<br />

to 25 km)<br />

100 50 10 100 630 105.00 4000 57 3.80 3872 185<br />

200 378 75.6 200 430 71.67 5000 350 23.33<br />

300 255 51 300 378 63.00 6000 19 1.27<br />

400 246 49.2 400 87 14.50 8000 16 1.07<br />

500 127 25.4 500 285 47.50 Total 442<br />

Total 1056 600 323 53.83<br />

700 119 19.83<br />

800 277 46.17<br />

900 9 1.50<br />

1000 229 38.17<br />

1200 11 1.83<br />

1300 25 4.17<br />

1500 525 87.50<br />

1600 11 1.83<br />

1700 40 6.67<br />

Total 3379<br />

Table 10 refers specifically to the areas designated in Figure 50. The table shows SP-1, SP-2 and SP-3<br />

and the expected effort for each of the four fisheries for which we had adequate data:<br />

a) Our historical data is from 2008 to 2010<br />

b) We have the number of vessels in each sector for 2009 and 2008 but for 2010 we have<br />

assumed the 2009 values;<br />

c) The column “records per year” is the actual number of times these vessels reported in their<br />

catch logs to be in each area;<br />

d) We also used the total effort hours reported for each fishery to estimate the expected time<br />

per day each vessel would trawl in the areas designated. Note that this does not mean that<br />

the vessel will move from the area. Typically vessels remain in an area if fishing is good.<br />

9.2 CONCLUSIONS<br />

The data shown here is a further refinement of the analysis done in Para. 6.3. We stress that these<br />

are approximations of the effort and vessels expected in the area based on the data available to us.

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!