What are ghost nets?
Ghost
Nets are classified under abandoned, lost or otherwise discarded fishing gear,
which includes lines, traps, hooks, dredges and buoys. These are left in
oceans, and the nets restrict movement, causing starvation, laceration and
infection, and suffocation in those that need to return to the surface to
breathe.
Harmful
Effect
Ghost
nets can kill marine wildlife, including vulnerable species and destroy the
benthic ecosystem. Benthic Ecosystem is a type of ecosystem that exists at the
lowest level of a body of water.
High
Quality synthetic nets can last in the oceans for centuries and lead micro
plastic ingestion by aquatic life.
Fishes
often get stuck in these nets and die, which contributes to 200 tonnes
annually.
Reason
The
problem has been due to global expansion of fishing sector, and the
availability of the more durable gear.
The
International Body
The
United Nations Environment Program in 2009 conducted a study –‘Abandoned, Lost
or Otherwise Discarded Fishing Gear’. It was surprising that almost 640000
tonnes of all fishing gear is lost in our oceans annually.
The
economic Impacts of ALDFG are complex and have not been estimated
systematically. It increases Marine Debris, Plastics and Micro plastics in
Ocean and food chains.
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