Pearl diving refers to an obsolete method of
retrieving pearls from pearl oysters, freshwater
pearl mussels and, on rare occasions, other
nacre-producing mollusks, such as abalone.
Before the beginning of the 20th century, the
only means of obtaining pearls was by
manually gathering very large numbers of
pearl oysters (or pearl mussels) from the ocean
floor (or lake, or river bottom).
1. Oysters: Bivalve mollusk, esp. an edible kind,
sometimes producing a pearl.
2. Obsolete: No longer used, antiquated.
3. Nacre-Producing: Nacre also known as mother
of pearl, it is what makes up the outer coating of
4. Mollusks: Invertebrate with a soft body and
usually, a hard shell, e.g. snails and oysters.
5. Bivalve: Aquatic mollusk with a hinged double shell, e.g.
the oyster and mussel, with such a shell.
6. Mussel: It is the common name used for members of
several families of clams or bivalve mollusk, from saltwater
and freshwater habitats.
7. Abalone: It is a common name for any of a group of
small to very large edible sea snails, marine gastropod
mollusks in the family Haliotidae.
Shipbuilding is the construction of ships and
floating vessels. It normally takes place in a
specialized facility known as a shipyard.
Shipbuilders, also called shipwrights, follow a
specialized occupation that traces its roots to
before recorded history. Shipbuilding and ship
repairs, both commercial and military, are
referred to as "naval engineering". The
construction of boats is a similar activity called
boat building. The dismantling of ships is called
1. Vessel: A craft designed for water transportation.
2. Shipyard: Place where ships are built.
3. Traces: Observe or find vestiges or signs of by
4. Commercial: Sponsored by an advertiser.
5. Military: Characteristic of soldiers or armed forces.
6. Naval Engineering: The branch of
engineering that deals with the design and
construction and operation of battle ships.
7. Dismantling: Take to pieces; pull down.
Fishing is the activity of trying to catch
fish. Fish are normally caught in the wild.
Techniques for catching fish include hand
gathering, spearing, netting, angling and
trapping. The term fishing may be applied
to catching other aquatic animals such as
mollusks, cephalopods, crustaceans, and
echinoderms. The term is not normally
applied to catching farmed fish, or to
aquatic mammals, such as whales, where
the term whaling is more appropriate.
1. Wild: In its original natural state; not
domesticated, cultivated, or civilized.
2. Hand Gathering: Gathering seafood by
3. Spearing:Thrusting or throwing weapon with a
long shaft and a pointed usually a steel tip.
4. Netting: Piece of net used to restrain, contain,
or delimit, or to catch fish etc.
5. Angling: Fish with hook and line.
6. Trapping: A device, often baited, for catching