Skip to content
Join our Newsletter

Waters off Vancouver Island now home to Canada's largest marine protected area

The area spans more than 133,000 square kilometres and covers “extraordinary seafloor features,” including more than 47 underwater mountains, known as seamounts.

First Nations along British Columbia’s coast have announced with the Canadian government the designation of the country’s largest marine protected area. 

A statement from Fisheries and Oceans Canada says the ecologically unique ocean area is located about 150 kilometres off the west coast of Vancouver Island. 

It says the area spanning more than 133,000 square kilometres covers “extraordinary seafloor features,” including more than 47 underwater mountains, known as seamounts, and all of the confirmed hydrothermal vents in Canada. 

The department says the deep-sea vents are “biological hotpots” that support rare and unique species that are both “remarkable and culturally important.” 

The new designation makes it the largest marine protected area to be recognized under Canada’s Oceans Act in partnership with the Council of the Haida Nation, Nuu-chah-nulth Tribal Council, Pacheedaht First Nation and Quatsino First Nation. 

Fisheries and Oceans says the area was first identified for protection in May 2017, leading to measures preventing bottom-contact fishing activities. 

In 2023, the First Nations and the Canadian government signed a memorandum of understanding on how to collaboratively manage the new protected area. 

The name of the area, Tang.Gwan – hacxwiqak – Tsigis, consists of a Haida word meaning deep ocean, a Pacheedaht word meaning deepest part of the ocean, and a Quatsino word referring to a monster of the deep, the department says. 

“Today we are taking a giant step forward in protecting Canada’s oceans,” Fisheries and Oceans Minister Diane Lebouthillier said in a statement Thursday. 

“The designation of this MPA brings us halfway to our goal of conserving 30 percent of our oceans by 2030.” 

Ocean Networks Canada, a University of Victoria initiative, welcomed the announcement. 

In a statement, it noted that the new expanded MPA incorporates the Endeavour Hydrothermal Vents MPA, where ONC has been providing ocean monitoring through its deep-sea cabled observatory NEPTUNE (North-East Pacific Time-series Undersea Networked Experiments) since 2009. 

Two other monitoring sites that are part of NEPTUNE — Cascadia Basin and Middle Valley—are now also within the new area’s boundaries. 

“With over 80 per cent of the ThT MPA not fully explored, the expansion from the Endeavour segment of the Juan de Fuca Ridge to this large-scale area of protection will advance knowledge of our blue planet,” said ONC president and CEO Kate Moran. 

— With files from the Times Colonist