Restoration Project

Universidad de Chile - Carrizal

Restoration Objective:

The objective of this study was to improve methodologies, technology and methods.

Site Selection Criteria:

Sites were selected in closed areas with a history of over-exploitation and historical mining activities.

Cause Of Decline:

Along the Chilean coastline, kelp forests (Lessonia- Macrocystis) sustain a broad diversity of marine organisms and are a source of raw materials for several industries (alginates, biofuels, and feed for abalone rearing). Annual harvests of up to 400,000 dry tons provide 10% of the total biomass of brown algae worldwide. However, the frequent harvesting has resulted in population reduction and fragmentation.

Key Reasons For Decline:

Harvest

Scientific Paper

Chimeric kelp: a method to improve survival, growth and genetic diversity in seaweed cultivation and habitat restoration. 9th International Seaweed Conference. Seagriculture. 24-25 September. Bodø, Norway.

González A.V., Tala F., Vásquez J, Santelices B, , p.32.

Organisation:

Universidad de Chile

Site Observations:

Observation Date

23rd Nov 2019 – 21st Jan 2020

Action Summary:

Researchers developed a method to obtain chimeric individuals in brown seaweeds such as Lessonia, Macrocystis, and Durvillaea. Selected strain genotypes were then used to build chimeras.

Project Outcomes:

Not described.

Nature of Disturbance:

Human pressure, wave action and storms disrupted the transplantation process.

Key Reasons For Decline:

Harvest

Indicator Data:

Indicator:

Ending Value:

Starting Value:

Adult Kelp Count

4.53.5
Costings:
Cost Currency:USD