Biology Reference
In-Depth Information
R
ESULTS
Fishing Fleet
There were
501 wood vessels between the municipality port and Arapiranga in Vigia. Of
this complement, 24 moved by oar, 115 moved by sail and/or oar without deck and 362
deck/cabin boats moved by a combination of motor and sail. Their fishing gear consisted of
hook and line, mono and multithreaded nets, cast net
and puçá
(a fish gear that usually
catches medium and small fish). The fishing product supplies the local market, the Ver-O-
Peso market in Belém (Pará), the Vigia fish processing company and the cities of São Luís
(MA) and Fortaleza (CE).
The vessel registration price for the captaincy in the ports divides the fleet into two strata:
smaller and larger than 12m in length. Slightly over 80% of the boats were manufactured in
Vigia; all with deck, cabin and sail. Each sail was assisted by a motor to help in the
navigation of Marajó Bay. Independent of the stratum, there was a strong correlation between
the boat length and the variables: basement ice capacity (r = 0.85), motor power (r = 0.80)
and fishermen number (r = 0.79), net length and fishermen number (r = 0.74); and a moderate
correlation between boat length and net length (r = 0.66).
Stratum 1
"Amazônidas", fishing fleet one, comprised of smaller sized vessels, actively fished in
Marajó Bay as well as in the Amazon River's mouth. They represented 76.7% (n = 189) of
the boats between lengths of 6 m and 11.8 m (
X
= 8.9; S = 1.26). These boats were powered
by 9 to 160 HP engines (
X
=18), had ice cargo holds of 0.2 to 9.0 tones (
X
= 4.9; S = 1.83),
crew size of 2 to 7 (
X
= 4), and net lengths from 400 to 2,500 br (
X
= 750; S = 308.65). The
correlation coefficient was moderate (r = 0.527) between BL/IC and low between BL/HP,
BL/FN and BL/NL.
Stratum 2
"Northern" outside fishermen in fleet two, fished along the coast of the State of Amapá.
They comprised 23.3% (n = 44) of the total number of boats vessels assessed and were from
12 to 32 m in length (
X
= 14.9; S = 3.57). Their boats were powered by with engines ranging
from 18 to 230 HP (
X
= 69) as well as by sails. They had 1.5 to 35.0 t potential capacity in
their cargo holds (
X
= 12.4; S = 6.51), crews from 8 to 12 men (
X
=8), and used
multifilament nets with lengths of 900 to 3,500 br (
X
= 2,027.5; S = 508.31). The correlation
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