The 'Ghost Fishing' organisation puts divers centre stage

It was delivered by a very tall, quiet Dutchman by the name of Pascal van Erp. Pascal explained how he had started to recover abandoned ghost fishing gear entangled on wrecks in 2009. He soon inspired others to join him. It was not long before organised teams of volunteer technical divers were recovering tons of ghost fishing gear off the Dutch coastline. In 2012, Van Erp formally founded the not-for-profit Ghost Fishing organisation.

Ghost fishing—a lost or abandoned net or other fishing equipment that is snagged on a reef or wreck—continues to trap marine wildlife.

Sperm whales off Dominica. The sperm whale (Physeter macrocephalus) or cachalot is the largest of the toothed whales

2016 New Zealand quake disrupted sperm whales' foraging behaviour

In November 2016, a 7.8 magnitude earthquake in New Zealand triggered underwater mudslides in the underwater canyon off the coastline. This led to high-velocity currents to flush 850 tonnes of sediment from the canyon into the ocean.

This "canyon flushing" caused what was once a diverse ecosystem of invertebrates along the Kaikoura underwater canyon to become as "quiet as a desert."

A paper in the Deep Sea Research Part I journal describes how sperm whales were subsequently affected by the quake and how they changed their foraging habits as a result.