Biophysical Survey
Definition
A biophysical survey identifies biological organisms and existing substrates within a defined survey area.
Our Experience
Balanced Environmental has performed over 200 biophysical surveys in the past 5 years throughout coastal British Columbia. Balanced Environmental has developed a reputable client base including government agencies such as Fisheries and Oceans Canada, local governments such as the District of West Vancouver, and private corporations such as Larfage. Our knowledge and experience of coastal British Columbia is second to none.
Components
Biophysical surveys typically involve:
• Identification of visible biota including algae, plants, and animals
• Provide information on the abundance, biodiversity and health of organisms observed
• Identification of substrate type, size and physical location
• Tags are presented over a hydrographic or topographic survey in Chart Datum
• Structures are included in the survey as reference points and to help describe patterns observed
Applications
Biophysical surveys provide information to proponents and Fisheries and Oceans Canada about existing biological and physical conditions at a site. This information is required when performing an Environmental Impact Assessment of projects that occur within 30 metres of a water body.
Who Can Perform a Biophysical Survey
Biophysical surveys are performed by Professional Biologists who have experience and expertise in the identification of species within the target area.
Biophysical surveys often require scientific divers to perform underwater components, although exceptions can be made depending on the level of training, experience, and the supervisor.
How Ofen is a Biophysical Survey Required
A biophysical survey is required prior to any disruption to fish habitat as defined under the Fisheries Act. Biophysical surveys can also be required during post-construction habitat compensation monitoring to ensure compensation areas are functioning as intended.
What Time of Year is Best
Biophysical surveys are performed year-round. However, the density of photosynthetic organisms such as Ulva, Salicornia, and Eelgrass will be low in winter, and many riparian plants are difficult to identify. The most comprehensive biophysical surveys are performed in late spring and early summer where tides are low during the day and seasonal growth allows for plant identification.
Biophysical Inventory | Sea Creatures | Fish Trapping
