license: cc-by-nc-2.0
European Green Crab Classifier
By Ryan Luvera
Scientific Context
Correctly documenting the spread of invasive species is incredibly important for stratifying control efforts and predicting future spread.
European green crabs (Carcinus maenas) were first found in Washington state in 1998. Since then, they have invaded into the larger Salish Sea region and have begun to expand into Canada and Alaska.
This invasion is especially worrying due to green crabs impact on native mollusks, crustaceans, and grasses. In Washgington, Dungeness crab fisheries, shellfish aquaculture, and eel grass beds which are critical for juvenile salmon are all in jeporardy due to green crab invasion.
Dataset Description
Data were gathered from iNaturalist "Research Grade" category.
Photos were sorted to only include pictures where the carapace was clearly visable (This is a WIP currently, the model includes false data but performs well still).
This meant the removal of pictures that included only the claw, were too blurry to determine distinctive morphology, or were in pieces/broken.
Classes included:
European green crabs and 9 common crab species found in the Salish Sea.
- Carcinus maenas
- Cancer_productus
- Eriocheir_sinensis
- Hemigrapsus_nudus
- Hemigrapsus_oregonensis
- Metacarcinus_gracilis
- Metacarcinus_magister
- Pugettia_producta
- Romaleon_antennarium
- Telmessus_cheiragonus
Metadata:
Model Selection
YOLOv11 Object Detection Model
Additional Features: Ultralytics Objects Counting in Regions & Heatmap
Model Assessment
Here are the metrics I used to assess the accuracy and performance of my model during training.
Confusion Matrix
F1 Score
Object Detection Model Output
Model Use-case
Example Proposal:
Example Hypothesis: Example Impact:
Model Justification:
Disclaimer
Credit for all videos used in the dataset go to