Filters: Tags: Recruitment (X) > Types: OGC WFS Layer (X)

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The Effects of Drought on Rio Grande Cutthroat Trout: The Role of Stream Flow and Temperature Increasing temperatures and decreasing precipitation threaten the persistence of the Rio Grande cutthroat trout, the southernmost subspecies of cutthroat trout, found only in parts of New Mexico and Colorado. This subspecies appears to be more vulnerable to drought than more northern subspecies, because it occupies small and fragmented streams which are at greater risk of drying up during drought. Most notably, in 2002 drought in the Southwest resulted in the loss of 14 different Rio Grande cutthroat trout populations – about 10% of the total population. While it is known that drought is having an effect on Rio Grande cutthroat trout, the specific ways in which individuals and populations are affected by drought... Categories: Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 2015, CASC, Climate Change, Completed, Discharge, All tags... Drought, Drought, Drought, Drought, Fire and Extreme Weather, Drought, Fire and Extreme Weather, Fish, Fish, Growth, National CASC, National CASC, Persistence, Projects by Region, Recruitment, Rio Grande cutthroat trout, Rivers, Streams and Lakes, Rivers, Streams and Lakes, Stream Intermittency, Survival, Temperature, Water, Coasts and Ice, Water, Coasts and Ice, Wildlife and Plants, Wildlife and Plants, Fewer tags Benthic Communities as Mediators of Water Quality in Lower San Francisco Bay, California (2012-2019) San Francisco Bay and Estuary is largely urbanized and developed, and the southern bay is the most urbanized with many sources of nutrients, many concerns that the system might become eutrophic, and many questions about how South Bay has maintained its relatively good health. The hypotheses for why South Bay is not eutrophic, where other bays have not been so fortunate, include high bivalve grazing that limits net phytoplankton growth and high turbidity which also limits the phytoplankton growth rate. Understanding the bivalve grazing rates in the south bay includes the necessity of understanding temporal and spatial distributions of bivalves. Despite the critical need to understand all controls on eutrophication,... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Biomass, Bivalves, Lower San Francisco Bay, USGS Science Data Catalog (SDC), benthic community, All tags... benthic invertebrates, benthos, grazing rate, recruitment, Fewer tags A spatially and temporally intensive sampling study of benthic community and bivalve metrics in the Sacramento-San Joaquin Delta (ver. 2.0, May 2021) Phytoplankton is an important and limiting food source in the Sacramento-San Joaquin Delta and San Francisco Bay; the decline of phytoplankton biomass is one possible factor in the pelagic organism decline and specifically in the decline of the protected delta smelt. The bivalves Corbicula fluminea and Potamocorbula amurensis (hereafter Corbicula and Potamocorbula, respectively) have been shown to control phytoplankton biomass in several locations throughout the system, and their distribution and population dynamics are therefore of great interest. As one element of the California Department of Water Resources (DWR) and the U.S. Bureau of Reclamation’s (BOR) Environmental Monitoring Program (EMP), the Generalized... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bivalves, North San Francisco Bay, Sacramento-San Joaquin Delta, USGS Science Data Catalog (SDC), Water Resources, All tags... biomass, grazing rate, recruitment, Fewer tags Bivalve metrics in the North San Francisco Bay and Sacramento-San Joaquin Delta Phytoplankton is an important and limiting food source in the Sacramento-San Joaquin Delta and San Francisco Bay; the decline of phytoplankton biomass is one possible factor in the pelagic organism decline and specifically in the decline of the protected delta smelt. The bivalves Corbicula fluminea and Potamocorbula amurensis (hereafter Corbicula and Potamocorbula, respectively) have been shown to control phytoplankton biomass in several locations throughout the system, and their distribution and population dynamics are therefore of great interest. As one element of the Department of Water Resources' (DWR) and the Bureau of Reclamation’s (BOR) Environmental Monitoring Program (EMP), the benthic monitoring program... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bivalves, North San Francisco Bay, Sacramento-San Joaquin Delta, USGS Science Data Catalog (SDC), benthic community, All tags... benthic ecosystems, benthic invertebrates, biomass, recruitment, Fewer tags