El Segundo Science and Environment

• Artificial Reefs: Pratte's Reef  - Provides biography, programs, publications, and water quality. With membership information and contact details.
• El Segundo Blue Butterfly (Lepidoptera: Lycaenidae)  - Features photograph, with description and habitat. Includes scientific name, federal status, and state status.
• The Glide: Pratte's Reef  - Features news and editorials, connection information, galleries,and information sources. With profile and regristration details.
• Influence on Santa Monica Bay  - Shows Chevron's background, positive and negative impact to environment, with bibliography.