Likely Population-Level Effects of Contaminants on a Resident Estuarine Fish Species: Comparing Gillichthys mirabilis Population Static Measurements and Vital Rates in San Francisco and Tomales Bays
| Autor: | Levi S. Lewis, Hyun-Min Hwang, James A. Hobbs, Naoaki Ikemiyagi, William A. Bennett, Peter G. Green, Catherine R. McGourty, Jason M. Cope |
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| Rok vydání: | 2009 |
| Předmět: |
Freshwater & Marine Ecology
Gillichthys mirabilis Marsh Population Nature Conservation Environment Aquatic Science Contaminants Mortality education Ecology Evolution Behavior and Systematics geography education.field_of_study geography.geographical_feature_category Ecology biology Age and growth Environment general Estuary Aquatic animal Earth Sciences general biology.organism_classification Environmental Management Gillichthys Habitat Environmental science Recruitment Vital rates Bay |
| Zdroj: | McGourty, Catherine R.; Hobbs, James A.; Bennett, William A.; Green, Peter G.; Hwang, Hyun-Min; Ikemiyagi, Naoaki; et al.(2009). Likely Population-Level Effects of Contaminants on a Resident Estuarine Fish Species: Comparing Gillichthys mirabilis Population Static Measurements and Vital Rates in San Francisco and Tomales Bays. Estuaries and Coasts: Journal of the Coastal and Estuarine Research Federation, 32(6), pp 1111-1120. doi: 10.1007/s12237-009-9177-5. Retrieved from: http://www.escholarship.org/uc/item/7bj4g988 |
| ISSN: | 1559-2731 1559-2723 |
| Popis: | Gillichthys mirabilis population static measurements (abundance, age, and size class structures) and vital rates (growth, mortality, recruitment) were monitored on an annual basis from 2002 to 2007. Population-level metrics were used to gauge habitat quality at two study sites (a contaminated site and a reference site) in two large northern California estuaries (San Francisco and Tomales Bays). San Francisco Bay populations exhibited slower growth and higher mortality rates and contained higher amounts of contaminants than Tomales Bay. Recruitment rates were highest at contaminated sites (Stege Marsh and Walker Creek) in 3 years out of 5 years, suggesting low adult survival. This study suggests that population-level effects on a residential fish may be attributed to estuarine contamination on the US Pacific coast. |
| Databáze: | OpenAIRE |
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