| CRD 02-01
Table 6. Impacts of Pots
and Traps on Benthic Habitat |
| TYPE OF IMPACT |
DEGREE OF IMPACT |
DURATION |
TYPE OF EVIDENCE |
COMMENTS |
| MUD |
| Removal of Major Physical Features |
N/A |
|
|
|
| Impacts to Biological Structure |
X |
Months - Years |
GL, PJ |
|
| Impacts to Physical Structure |
X |
Days - Months |
GL, PJ |
|
| Changes in Benthic Prey |
X |
Days - Months |
PJ |
Enrichment mediated effects, damage
mediated effects due to baited gear |
| SAND |
| Removal of Major Physical Features |
N/A |
|
|
|
| Impacts to Biological Structure |
X |
Months - Years |
GL, PJ |
|
| Impacts to Physical Structure |
X |
Days - Months |
GL, JP |
|
| Changes in Benthic Prey |
X |
Days - Months |
PJ |
Enrichment mediated effects, damage mediated
effects due to baited gear |
| GRAVEL |
| Removal of major physical features |
N/A |
|
|
|
| Impacts to Biological Structure |
X |
Months - Years |
GL, PJ |
|
| Impacts to Physical Structure |
X |
Months - Years |
GL, PJ |
|
| Changes in benthic prey |
X |
Months - Years |
PJ |
Enrichment mediated effects, damage mediated
effects due to baited gear |
| KEY: X = Effect can be present, but is rarely
large; XX = Effect is present and moderate; XXX = Effect is often
present and can be large; N/A = Effect is not present or not
applicable; Unknown = effects are not currently known; (H) =
High energy environment; (L) = Low energy environment; PR = Peer
reviewed literature; GL = Grey literature; PJ = Professional
judgement. For definitions of Substrate Type and Type of Impact
see Appendix D. |