2025 NEPDEP Expedition - Seamounts and Mapping

That’s a wrap

Stay tuned for our wrap-up video summarizing this amazing expedition. To go back and watch the dives please visit Seatube or our Facebook page.

We set sail September 4-18th, 2025 on the Canpac Valour!

This expedition aims to discover, explore, and monitor deep-sea ecosystems while sharing the joy of discovery of the incredible life and wonders hidden far below the waves! We will visually explore the habitats and sampled the waters in and around Ecologically and Biologically Significant Areas (EBSAs) for proposed and existing Marine Protected Areas (MPAs).

We will use the remotely operated vehicle Mantis to conduct science and capture incredible imagery of the deep sea to share with YOU! Thank you for joining us on our journey of discovery.

Watch live here on dive days OR on our Facebook Page!

Study Sites

  • The Haida Nation and Kuuniisii ancestors have strong spiritual and cultural connections with all places and beings in Haida territories. This expedition will go to the NEPDEP 58* Seamount in the Tuzo Wilson Seamount Complex (TWSC), near G̲angx̲id Kun Cape St. James.

    This very unique area provides habitats for all kinds of sea life, including an incredible coral garden that we discovered is a nursery ground for at least three different Ts’íit’aa | Ts’iiɢ̲a | skate species! Our final discovery confirms the seamount has lithospheric hydrothermal activity making it slightly warmer than the surrounding water.

    Our research will map the area as well as gather more data on the extent of the coral garden and nursery.

    *NEPDEP 58 is a placeholder name for an incredible seamount that will be named by coastal First Nations.

  • We will be exploring deep sites off the west coast of Haida Gwaii that are part of a proposed Marine Protected Area (MPA) Network. The proposed MPA Network in the Haida Gwaii Subregion builds upon decades of work, including work with Elders and Knowledge Holders who participated to the Haida Marine Traditional Knowledge study and through engagement with Haida Citizens, Haida Gwaii residents, and stakeholders. The establishment of Haida Heritage Sites and protected areas continues to uphold Haida Values and Ways of Being.

    A network of marine protected areas is a powerful and scientifically proven tool, which will contribute to improving species resilience, restoring abundance and improving ocean health. The proposed MPA Network sites will help to ensure that future generations will inherit the beauty and productivity of Tang.ɢ̲wan the Pacific Ocean.

    We will be capturing some of the first imagery of these deep sites, documenting areas of pristine habitat and areas with suspected bottom-contact fishing.

  • The Tang.ɢ̲wan · ḥačxʷiqak · Tsig̱is Marine Protected Area (TḥT MPA) was established in 2024 and covers over 133, 000 square kilometers. It is home to a remarkably abundant and diverse marine wildlife owing to the region's unique geology. A dense network of hydrothermal vents (fountains of superheated and mineral-enriched water) and seamounts (ancient volcanic mountains over 1,000 m tall) shape the region's ocean floor.

    The Nuu-chah-nulth Tribal Council, Council of Haida Nation, Pacheedaht First Nation, Quatsino First Nation, and Fisheries and Oceans Canada work together to cooperatively share in the planning, operation, management and use of the TḥT MPA.

    Our research will map areas, as gather more data on changing oxygen levels in the water column, and document the diversity to life to better inform the management of the MPA.

At-Sea Team

  • Heidi Gartner

    Science Lead

  • Tammy Norgard

    Science Lead

  • Marilyn Brière-Deschênes

    Mapping Lead

  • Daniel Labbé

    Sampling Coordinator

  • Julian Smith

    Sampling Team and Photographer

  • Travis Houston

    Hydrographic Surveyor

  • Justin Poon

    Hydrographic Surveyor

  • Peter Bunton

    Engineer

  • Ben Lott

    Captain

  • Eric Vail

    First Officer

  • Josh Tetarenko

    ROV lead

  • Heather Lacasse

    ROV pilot

  • Scott Spurr

    ROV pilot

  • James Barnett

    ROV pilot

  • Mike Burns

    Bosun

  • Robbie Jadresko

    Deck Hand

  • Damian Prlic

    Deck Hand

  • James Materi

    Cook

  • Zenon Joniec

    Engineer

  • New List Item

    Description goes here

The NEPDEP Partners