OA in Canada Species Impacts: Dungeness Crab
- OA CoP
- Jul 30
- 2 min read
Our latest poster on OA in Canada Species Impacts is here, featuring Dungeness crab! Browse or download a high-resolution printable version and feel free to share widely! Poster text is provided below.
Download our full-resolution, printable version:
More about the OA in Canada Species Impacts Series:
To summarize the current knowledge of OA impacts on species in Canada, the OA CoP has produced a poster series on how species are impacted by OA in Canada. The information presented here is based on the most current scientific literature (peer-reviewed, published papers) of studies conducted in Canada. We also highlight current gaps in our knowledge and areas that require additional research across Canada. These infographics are intended not only to highlight concerning OA impacts on important species in Canada, but are also meant to act as catalysts to support filling the gaps in our knowledge of OA impacts to species across Canada.
Poster Text:
OA in Canada Species Impacts: Dungeness crab
Fast Facts:
Scientific name: Metacarcinus magister
Range: Pacific Canada and US
Lifestyle: rocky-sandy seafloor, eats shellfish and other invertebrates
BC’s most valuable fishery ($114M in 2023)1
Indigenous communities concerned about long-term commercial crabbing impacts
OA Impacts in Canada (table):
Overall | Calcification | Growth | Survival/ Abundance | Reproduction | Physiological | |
Larval | ? | ? | ? | ? | N/A | ? |
Juvenile | ? | ? | ? | ? | N/A | ? |
Adult | ▼ | ? | ? | ? | ? | ▼ |
Only 2 OA studies of Dungeness crabs conducted in Canada2,3
Only adult physiology has been studied in the lab, with negative impacts to acid-base regulation1 and olfactory (sensory) activity2
Several studies from the US report and model negative impacts of OA on Dungeness crabs across life stages4,5
Current Gaps:
OA impacts to crab reproduction and survival?
OA impacts to crab calcification and growth?
Uncertainty in OA impacts to larval stages?
Citations:
Comments