Anya Dunham

Dundavin Sponge Reef: Methods and Results from ROV Survey PAC2017-094

Jessica Nephin, Rayne Loeffler, Sharon Jeffery, Stephanie Archer et autres

In 2017, a scientific survey (PAC2017-094) was led by Fisheries and Oceans Canada (DFO) to map and assess the ecological status and character of the 48km² glass sponge reef in Chatham Sound and to survey a smaller unmapped sponge reef, referred to …

ca (code pays fourni par la source)

Cold seeps: climate relevance and anthropogenic impacts

Daniel M. Labbé, Heidi Gartner, Anya Dunham, Sophia Johannessen et autres

Cold seeps are deep-sea benthic features which emit hydrocarbon-rich fluids (primarily methane), representing notable conduits for carbon from long-term geologic stores to the hydrosphere. Methane is a potent greenhouse gas with substantial implications for earth’s climate. Due to their global distribution, cold …

ca (code pays fourni par la source)

World Ocean Assessment III, Section 4, Chapter 4, Subchapter 4c: Marine benthic invertebrates

Lis L Jørgensen, Lara Atkinson, Evangelia Chatzinikolaou, Anya Dunham et autres

Key points Seafloor hotspots and 7,252 new benthic invertebrates have been described since the publication of the second World Ocean Assessment, and there has been a five-fold increase in critically endangered species and a doubling of endangered species. Marine benthic invertebrates are …

Causes of historical decline of the glass sponge reefs in British Columbia, Canada

Anya Dunham, Georgia Clyde, Cooper Stacey, Lily Burke et autres

ABSTRACT Hexactinellid (glass) sponge reefs are unique biogenic habitats found along the Northeast Pacific margin of North America. Seabed surveys with remotely operated vehicles and drop cameras revealed expansive dead areas, with few or no living glass sponges observed on reef surfaces, …

ca, us (code pays fourni par la source)

State of deep-sea science and conservation in the Northeast Pacific: implications for policy and management

Fanny Girard, Joan M. Alfaro-Lucas, Amy R. Baco, James P. Barry et autres

Spanning from the North American continent to the Hawaiian Ridge and from the Aleutian Ridge to the tip of the Baja California Peninsula, the deep Northeast Pacific (>200 m depth) hosts a high diversity of species and habitats. While relatively well studied …

Safeguarding marine protected areas from cumulative effects: a review of methods, best practices, and applications

Cathryn Clarke Murray, Anya Dunham, Emily M. Rubidge, Fiona T.-Y. Francis et autres

Marine Protected Areas (MPAs) are key ocean conservation tools that can safeguard the diversity and function of marine ecosystems in the face of an increasing footprint and intensity of human activities. To be effective, MPA design, implementation, and management must consider not …

ca (code pays fourni par la source)

Causes of Historical Decline of the Glass Sponge Reefs in British Columbia, Canada

Anya Dunham, Georgia Clyde, Cooper Stacey, Lily Burke et autres

Using Ecological Theory as a Guide for Marine Protected Area Monitoring

Anya Dunham, Josephine C. Iacarella, Karen L. Hunter, Sarah C. Davies et autres

The Bulletin of the Ecological Society of America is the official record of business of the Ecological Society of America, publishing non-refereed articles that cover ecological events, news and reports.

Conserving ecosystem integrity: Ecological theory as a guide for marine protected area monitoring

Anya Dunham, Josephine C. Iacarella, Karen L. Hunter, Sarah C. Davies et autres

Global policies increasingly focus on the importance of maintaining or improving the integrity of ecosystems, but defining, assessing, and monitoring integrity in marine protected areas (MPAs) remains a challenge. In this paper, we conceptualized ecological integrity along dimensions of heterogeneity and stability …

ca, us (code pays fourni par la source)

Fishing damage to cloud sponges may lead to losses in associated fish communities in Pacific Canada

Fiona T.-Y. Francis, Lily Burke, Jeff Marliave, Jessica Schultz et autres

Glass sponge gardens are important biogenic habitats that support fish communities in Pacific Canada. However, glass sponges (class Hexactinellida) are delicate and susceptible to damage from fishing gear such as downriggers. In this study we document changes in a fish community before …

ca (code pays fourni par la source)

Monitoring temporal and spatial trends of illegal and legal fishing in marine conservation areas across Canada's three oceans

Josephine C. Iacarella, Lily Burke, Georgia Clyde, Adam Wicks et autres

Abstract Expansion of marine conservation areas (CA) necessitates resource‐efficient and achievable strategies for monitoring and evaluation of ongoing fishing activity at national levels. To demonstrate and explore such a strategy, we conducted the first extensive analysis of fishing activity within Canada's static, …

ca, us (code pays fourni par la source)

Application of AIS ‐ and flyover‐based methods to monitor illegal and legal fishing in Canada's Pacific marine conservation areas

Josephine C. Iacarella, Lily Burke, Georgia Clyde, Adam Wicks et autres

Abstract New approaches are required to undertake the substantial task of monitoring ongoing fishing activity in marine conservation areas to ensure conservation goals are achieved. To address this need, we applied previously developed, yet currently underused, vessel tracking methods based on Automatic …

ca, us (code pays fourni par la source)