Page 21 - BORSELLINO2006

Fishery management in the Channel of Sicily 431

Table 14. Annual economic productivity indicators of fishing companies under examination (average value in
Euro per vessel. 2003).

Bottom otter trawls Mid- Longlines Purse Gillnets
water seines and
pair pots
trawls

Indicators Mazara P. Sciacca Sciacca Marsala Trapani Mazara
del V. Empedocle del V.

Revenue x¯ 2710.06 3132.38 3369.25 4123.41 1907.15 3042.13 13 090.48
1876.57 362.01 638.14 372.28 686.16 4080.99
GT S 1009.52 0.11 0.15 0.20 0.23 0.31
0.60
CV 0.37 1886.45 2022.65 2659.86 1212.03 2013.28 11 775.18
1196.20 251.96 434.94 213.21 422.99 3796.14
Value added x¯ 1335.65 0.12 0.16 0.18 0.21 0.32
0.63 721.31 533.93 581.25
GT S 513.81 832.22 147.01 1010.50 128.15 82.29 11 775.18
541.35 0.20 180.16 0.24 0.14 3796.14
CV 0.38 0.18 0.32
0.65
Net income x¯ 459.73

GT S 239.93

CV 0.52

Table 15. Daily economic productivity indicators of fishing companies under examination (average value in
Euro per vessel. 2003).

Bottom otter trawls Mid- Longlines Purse Gillnets
water seines and
pair pots
trawls

Mazara P. Mazara
Trapani del V.
Indicators del V. Empedocle Sciacca Sciacca Marsala

Revenue x¯ 15.40 17.75 19.64 24.94 13.17 22.91 108.86
GT*days S 5.75 10.20 2.16 3.83 2.18 5.44 33.59
CV 0.37 0.11 0.15 0.17 0.24 0.31
Value added x¯ 7.57 0.57 8.46 97.92
GT*days S 2.78 10.67 11.79 16.09 1.83 15.42 31.30
CV 0.37 1.53 2.61 0.22 4.64 0.32
Net income x¯ 2.59 6.49 0.13 0.16 3.70 0.30 97.92
GT*days S 1.24 0.61 4.21 6.11 0.92 4.38 31.30
CV 0.48 4.70 0.92 1.08 0.25 0.68 0.32
2.93 0.22 0.18 0.15
0.62

The parameters on fishing effort taken into consideration are not the only factors affecting
the economic productivity of each of the fishing systems. There are other factors, such as
the fishing zone, the expertise of the Captain and crew, the number of boats, the type of
commercialization used, prevailing market prices, etc. An examination of the various systems
of fishing shows that the small-scale fishing companies (with small catches—approx 10 kg
per boat) offer a high quality product both as far as the type of fish is concerned (white fish
and fine-quality shellfish) and the quality of the fish (not subject to refrigeration processes
before being brought to market).

The indicators of economic productivity relating to purse seining and pair trawling can
be explained partially by the high levels of oily fish caught (although market prices remain
modest) and partially by the fact that activity is restricted by the limited fishing season for this
type of fish.

The trawling sector, characterized by large catches, differs in economic productivity accord-
ing to the port under examination: on the one hand, Mazara del Vallo, whose economic
productivity is affected by low prices offered for a catch (this latter has undergone on board