COMPARATIVE EFFICIENCY OF MONOFILAMENT AND MULTIFILAMENT NYLON TRAMMEL NETS IN THE EGYPTIAN DELTA LAKES (LAKE EDKU)

COMPARATIVE EFFICIENCY OF MONOFILAMENT AND MULTIFILAMENT
NYLON TRAMMEL NETS IN THE EGYPTIAN DELTA LAKES (LAKE EDKU)
A.A. ALSAYES
National Institute of oceanography and Fisheries, .Kayet Bey
Alexandria – Egypt.
ABSTRACT
Synthetic fibres became widely used in the Egyptian lake
fisheries several years ago, but in the fonm of
nJl t i f i hnents. Recently, monofilament nets have been
introduced to replace gradually the ft.Iltifilament nets. It
is att~ted in the present investigation to cOfl1)8re between
the fishing powers of mono-and ft.Iltifilament trammel nets in
Lake Edku.
Recomnendations are . made for the introduction of
monofi lament material on a wider scale in the lake tranmel
net fishery in Egypt, due to their advantages over the
multifilament material.
It is fOl.l1d that the efficiency ratio (in weight) of the
monofilament tranmel nets ranged between 1.20 in case of
nets with stretched mesh size of 6.13 cm to about 1.35 in
case of nets with mesh size of 5.00 cm.