Materials
Fish samples were collected randomly from traditional
launches operating in the Egyptian Red Sea sector that had
landed in Hurghada’s fishing port in the period between,
May 2010 and June 2011. Hurghada lies at the northern part
of the Red Sea coast between latitudes 27100 N–27330 N
and longitudes 33700 E–33850 E (Map 1). Fishing operations
in this area are conducted with artisanal long line, gillnets and
trammel nets at depth of about 1–10 m. A gillnet seems to look
like a trammel net. However, a gillnet has a single piece of
mesh while, the trammel net has three pieces of mesh, one
middle of small mesh size and two sides of larger mesh sizes.
Nets consisting of chains usually composed of 10–40 nets,
but may also be longer. Each one is usually around 25 m long,
with a mesh size ranging from 2 to 3 cm.