210
In some areas, octopuses are fished from the shore by hand, with spears or hooks.
In Northern Spain, a traditional fishing method combines a baited stick and a hook
mounted at the end of a stick and is used in the intertidal zone at low tide. Usually,
these sticks are baited with fish and/or squid flesh. The baited stick is placed inside
the octopus den and the fisherman waits until it grasps the lure. Then, the octopus is
slowly taken outside its den with the baited stick and extracted with the hook (Sauer
et al. 2019).
Spearing is accomplished either by wading or from small skiffs. Octopuses are
located by using boxes with a glass in the bottom, SCUBA masks, or by clearing the
surface with a few drops of oil. When an octopus is found in the open, it is speared.
If an octopus den is found, a short pole with a hook on the end is thrust into the hole
(Guerra 1997).
Some Important Species of Octopuses
Octopus maya
This species is common in shallow grassy bottom. These animals are mainly fished
from a small boat with numerous baited lines drawn slowly across the bottom.
Octopus macrocus
This species is distributed worldwide in warm waters. It lives on rocky and sandy to
grassy bottom. Since it lives in somewhat deeper water it will probably best be
caught with a trawl.
Octopus aegina
It lives in muddy coastal water found subtidally on soft substrastes to depths of at
least 40 m. This octopus is a major fisheries species throughout coastal Mainland
Asia, important in commercial trawl fisheries, particularly from the Gulf of Thailand
and South China Sea. It is distributed in coastal waters of continental Asia, from
China south to Malaysia and west to at least Madras, India (Dunning et al. 1998).
Octopus marginatus
This species is found in tropical continental waters of the Indian Ocean, from Red
Sea and East Africa and Southeast Asia and eastern Australia. It lives in coastal
muddy waters on mud and sand substrates; from subtidal to depths at least190 m. It
is important fisheries species collected by trawlers, pots, and lines (Dunning et al.
1998) (Fig. 3.9).
Nutritive Composition of Cephalopods
The cephalopods were reported to be rich source of long chain n-3 polyunsaturated
fatty acids, essential amino acids, antioxidants and minerals, such as, selenium
(Zlatanos et al. 2006). Proximate composition of cephalopods varies with habitat,
maturation, feed and feeding, species and season. Composition also varies among
3 Molluscan Shellfish
In some areas, octopuses are fished from the shore by hand, with spears or hooks.
In Northern Spain, a traditional fishing method combines a baited stick and a hook
mounted at the end of a stick and is used in the intertidal zone at low tide. Usually,
these sticks are baited with fish and/or squid flesh. The baited stick is placed inside
the octopus den and the fisherman waits until it grasps the lure. Then, the octopus is
slowly taken outside its den with the baited stick and extracted with the hook (Sauer
et al. 2019).
Spearing is accomplished either by wading or from small skiffs. Octopuses are
located by using boxes with a glass in the bottom, SCUBA masks, or by clearing the
surface with a few drops of oil. When an octopus is found in the open, it is speared.
If an octopus den is found, a short pole with a hook on the end is thrust into the hole
(Guerra 1997).
Some Important Species of Octopuses
Octopus maya
This species is common in shallow grassy bottom. These animals are mainly fished
from a small boat with numerous baited lines drawn slowly across the bottom.
Octopus macrocus
This species is distributed worldwide in warm waters. It lives on rocky and sandy to
grassy bottom. Since it lives in somewhat deeper water it will probably best be
caught with a trawl.
Octopus aegina
It lives in muddy coastal water found subtidally on soft substrastes to depths of at
least 40 m. This octopus is a major fisheries species throughout coastal Mainland
Asia, important in commercial trawl fisheries, particularly from the Gulf of Thailand
and South China Sea. It is distributed in coastal waters of continental Asia, from
China south to Malaysia and west to at least Madras, India (Dunning et al. 1998).
Octopus marginatus
This species is found in tropical continental waters of the Indian Ocean, from Red
Sea and East Africa and Southeast Asia and eastern Australia. It lives in coastal
muddy waters on mud and sand substrates; from subtidal to depths at least190 m. It
is important fisheries species collected by trawlers, pots, and lines (Dunning et al.
1998) (Fig. 3.9).
Nutritive Composition of Cephalopods
The cephalopods were reported to be rich source of long chain n-3 polyunsaturated
fatty acids, essential amino acids, antioxidants and minerals, such as, selenium
(Zlatanos et al. 2006). Proximate composition of cephalopods varies with habitat,
maturation, feed and feeding, species and season. Composition also varies among
3 Molluscan Shellfish