Event Title

Little clams making a big difference: Rochefortia tumida obscure juvenile bivalve results in the Gulf Islands

Presentation Abstract

Changing climate in recent years has lead to a decrease in resiliency for marine species, negatively impacting Indigenous food systems and Indigenous peoples’ ability to practice traditional ways of life. One way to increase the resilience of marine ecosystems can be found in ancient technologies used for millennia by Indigenous people, such as clam gardens. Clam gardens are an Indigenous form of shellfish management that allow coastal communities to maintain an interaction with nature that is resilient. Clam gardens were created by First Nation people by rolling rocks down the beach at low tide creating a rock wall. This rock wall created a terrace which expands clam habitat. As part of a joint project between Parks Canada and ten Coast Salish Nations, two clam gardens are being restored in the Southern Gulf Islands, BC. The purpose of this project is to determine how clam gardens are providing a unique habitat for bivalves, specifically under five millimeters. Bivalves were separated from surface sediment core samples taken from clam garden beaches and control sites. Species composition was determined for bivalves above 1mm. Results show that 89% of bivalves assessed on clam gardens were Robust mysella, a unique clam which reaches a maximum length of three millimeters. These results highlight the importance of species level identification to determine the impact of clam gardens on traditional food species.

Session Title

Posters: Ecosystem Management, Policy, & Protection

Conference Track

SSE18: Posters

Conference Name

Salish Sea Ecosystem Conference (Seattle, WA : 2018)

Document Type

Event

SSEC Identifier

SSE18-51

Start Date

5-4-2018 11:30 AM

End Date

5-4-2018 1:30 PM

Type of Presentation

Poster

Contributing Repository

Digital content made available by University Archives, Heritage Resources, Western Libraries, Western Washington University.

Geographic Coverage

Salish Sea (B.C. and Wash.)

Rights

This resource is displayed for educational purposes only and may be subject to U.S. and international copyright laws. For more information about rights or obtaining copies of this resource, please contact University Archives, Heritage Resources, Western Libraries, Western Washington University, Bellingham, WA 98225-9103, USA (360-650-7534; heritage.resources@wwu.edu) and refer to the collection name and identifier. Any materials cited must be attributed to the Salish Sea Ecosystem Conference Records, University Archives, Heritage Resources, Western Libraries, Western Washington University.

Type

text

Language

English

Format

application/pdf

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Apr 5th, 11:30 AM Apr 5th, 1:30 PM

Little clams making a big difference: Rochefortia tumida obscure juvenile bivalve results in the Gulf Islands

Changing climate in recent years has lead to a decrease in resiliency for marine species, negatively impacting Indigenous food systems and Indigenous peoples’ ability to practice traditional ways of life. One way to increase the resilience of marine ecosystems can be found in ancient technologies used for millennia by Indigenous people, such as clam gardens. Clam gardens are an Indigenous form of shellfish management that allow coastal communities to maintain an interaction with nature that is resilient. Clam gardens were created by First Nation people by rolling rocks down the beach at low tide creating a rock wall. This rock wall created a terrace which expands clam habitat. As part of a joint project between Parks Canada and ten Coast Salish Nations, two clam gardens are being restored in the Southern Gulf Islands, BC. The purpose of this project is to determine how clam gardens are providing a unique habitat for bivalves, specifically under five millimeters. Bivalves were separated from surface sediment core samples taken from clam garden beaches and control sites. Species composition was determined for bivalves above 1mm. Results show that 89% of bivalves assessed on clam gardens were Robust mysella, a unique clam which reaches a maximum length of three millimeters. These results highlight the importance of species level identification to determine the impact of clam gardens on traditional food species.