Roberts Lake

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An environmental summary created by the ENVS 560/L Watershed Systems class at CSUMB.


Roberts Lake is a freshwater lake located in the city of Seaside, and within the Canyon del Rey Watershed. It was formerly an estuary but the development of construction and fill for local highways removed any saltwater influence. The lake is connected to Laguna Grande Regional Park, and was named after Dr. John Roberts who was a founder of the city.[1] The lake provides habitat for local waterfowl, including the rare Heermann's Gull making it a potentially important area for wildlife conservation in the area.[2][3]

Ecological Importance

From 1999-2000, Heermann's Gulls were observed using a small island in the lake for breeding, making Robert's Lake the species' only breeding location thought to exist in the United States at the time. The island has since been submerged, but a population of the gulls still live in the area and occasionally attempt to nest in various surrounding locations.[2][4] An attempt to restore this breeding population by creating an artificial island in the lake was launched in 2019 as part of the blank blank blank.(refernece about the plan)[5]
Roberts Lake. Picture provided by:City of Seaside.



  1. See Monterey. Roberts Lake.
  2. 2.0 2.1 Roberson D, Bailey S, Carratello R. 2001. Nesting of Heermann’s Gull: Challenges of an Urban Colonist. North American Birds. 55(2):375–378.
  3. BirdLife International (2020) Species factsheet: Larus heermanni. Downloaded from on 12/04/2020.
  4. BirdLife International 2018. Larus heermanni. The IUCN Red List of Threatened Species 2018: e.T22694296A132539371. Downloaded on 11 April 2020.
  5. Herrera J. 2019 April 9 Nesting island to launch Saturday on Roberts Lake in Seaside. Monterey Herald.


This page may contain students's work completed as part of assigned coursework. It may not be accurate. It does not necessarily reflect the opinion or policy of CSUMB, its staff, or students.