Lamprey Mark IDs
- Can be somewhat subjective
- Basics:
- A: broken through the skin into the muscle during attack: dimple
- B: attack that does not break skin: fairly smooth
- 1-4: Attack age, 1 most recent -> 4 oldest
- 1 – no healing, fresh mark
- 2 – limited healing
- 3 – considerable healing
- 4 – completely healed mark
- Only the most severe mark should be recorded from a single attack
- Example: If there is an B1 connected to an A1 by a sliding mark, record 1 A1 mark.
Type A Wounds
- A1
- Definite opening thru skin into muscle
- Muscle may or may not be exposed
- Skin rough to touch, no healing
- Scales missing, scale pits easily observable
- A2
- Muscle exposed and reddish
- White mucus covering muscle indicates healing
- Skin not rough to touch
- Scales missing, scale pits not observable
- Pigmentation to skin not evident
Type A Wounds
- A3
- Muscle somewhat exposed and reddish
- Considerable healing, particularly of muscle
- Pigmentation of skin returning and evident
- A4
- No exposed muscle
- Skin and pigments reformed
- No scale present over healed pit
Type B Wounds
- B1
- Pit absent, skin not broken
- Skin rough to touch
- Scales missing, scale pits easily observable
- No signs of healing
- B2
- Skin smooth to touch
- Skin may or may not be broken
- Some healing
- Sometime skin missing and muscle exposed
Type B Wounds
- B3
- Pigments returning but incomplete
- No scales in area of mark
- Considerable pigmentation of skin
- Considerable healing
- B4
- Completely healed mark
- Regenerated scales
- Skin pigments completely recovered
Similar Looking Wounds
- Cormorant Attacks
- Usually located in midsection, appear as vertical gouges
- Pseudomonas virus ulcers
- Deep, red colored pit, raised white edges, pick band around edges
- No circular buccal mark associated with lamprey
About
- Thank you to our partners for providing photos
- USFWS
- DFO
- USGS
- That guy that keeps emailing Ted
- MIDNR
- If you have high resolution photos similar to these and would like to submit them to be included in the quiz, please email them to ted_treska@fws.gov and specify who took the photo.
