David Magney Environmental Consulting

Fisheries and Aquatic Studies

Fisheries and Aquatic Studies

Fisheries and aquatic studies include a variety of tasks associated with determining the presence and population sizes of species of fish and other aquatic species, analyses of impacts of projects on aquatic species and aquatic ecosystems, and monitoring to detect or protect sensitive fishery and/or aquatic resources.   Fisheries include both freshwater and marine systems.

Several species of fish and other aquatic life are so rare or threatened that they have been listed as Threatened or Endangered by the National Marine Fisheries Service pursuant to the Endangered Species Act or by the California Coastal Commission (for species in California) pursuant to the California Endangered Species Act.   Some species of fish are also protected further in California from any take whatsoever, referred to as Fully Protected Species.   There are 49 species (or subspecies/varieties) of freshwater fish listed as Threatened or Endangered in the United States by the U.S. Fish and Wildlife Service, and another 32 marine or anadromous species listed by the National Oceanic and Atmospheric Administration, Fisheries (formerly the National Marine Fisheries Service).   There are 34 species (including subspecies, varieties, and ecologically significant units) of fish listed as Threatened or Endangered in California.

Some fishes DMEC has worked with include (Note: underlined text indicates link to photo/drawing of species): The Unarmored Threespine Stickleback is a small freshwater fish that is both federally listed Endangered and a Fully Protected Species that occurs only in the upper reaches of the Santa Clara River in Los Angeles County.   Another fish species of importance in southern and central California is the Southern Steelhead Trout, which is listed as federally Endangered.   Projects that have potential to impact sensitive aquatic species, such as those mentioned above, require analysis by a qualified aquatic/fisheries biologist.

Aquatic or amphibian species DMEC has worked with include: DMEC has experience surveying for, mapping, and characterizing aquatic habitats, and with assessing project impacts to aquatic ecosystems, particularly those occupied by listed species.   DMEC has monitored construction work for several projects to protect the aquatic resources of the site, with the monitoring typically required by the permitting agencies.   DMEC has also evaluated aquatic systems on a watershed basis, identifying watershed conditions that both directly and indirectly affect aquatic habitats, such as DMEC's analysis of the streams flowing through the Reports City of Ojai.

Go to the link on DMEC's Reports webpage for DMEC projects related to fisheries, and DMEC's Steelhead Monitoring Presentation for our monitoring work related to fisheries and aquatic resources.

This page last updated 1 February 2007
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