Results 11 to 20 of about 436 (131)
Temporal genetic studies of low‐dispersing organisms are rare. Marine invertebrates lacking a planktonic larval stage are expected to have lower dispersal, low gene flow, and a higher potential for local adaptation than organisms with planktonic ...
Laura M. Melroy, C. Sarah Cohen
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An Open Data Framework for the San Francisco Estuary [PDF]
Author(s): Baerwald, Melinda R.; Davis, Brittany E.; Lesmeister, Sarah; Mahardja, Brian; Pisor, Rachel; Rinde, Jenna; Schreier, Brian; Tobias, Vanessa | Abstract:
Melinda Baerwald +7 more
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Powering Life in the Water: Phytoplankton in the San Francisco Estuary [PDF]
Phytoplankton are probably the most important aquatic organisms that you have NEVER seen! Phytoplankton are nearly invisible and use sunlight, carbon dioxide, and nutrients in water to produce sugars that power the estuary food web. The amount of phytoplankton growth is important because phytoplankton are the food for aquatic animals like zooplankton ...
Alexander E. Parker, Peggy W. Lehman
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Most species of whales are vulnerable to vessel collisions, and the probability of lethality increases logistically with vessel speed. An Automatic Identification System (AIS) can provide valuable vessel activity data, but terrestrial-based AIS has a ...
Nathan C. Greig +7 more
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Dietary specialization is common in animals and has important implications for individual fitness, inter‐ and intraspecific competition, and the adaptive potential of a species. Diet composition can be influenced by age‐ and sex‐related factors including
Laurie A. Hall +4 more
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Delivering Food to Hungry Fish in the San Francisco Estuary [PDF]
The San Francisco Estuary is home to an important endangered fish called delta smelt. Delta smelt eat small, nutritious animals called zooplankton to survive and grow. In turn, zooplankton grow by eating microscopic plant-like organisms called phytoplankton. In the past, the Estuary was full of plankton and delta smelt.
Laura Twardochleb +4 more
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Thermal extremes alter population processes, which can result in part from temperature-induced movement at different spatial and temporal scales. Thermal thresholds for animal movement likely change based on underlying thermal physiology and life-history
Emily K. Lam +11 more
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Mesozooplankton omnivory in the upper San Francisco Estuary [PDF]
While many studies have examined mesozooplankton feeding in coastal environments, less attention has been given to this subject in estuaries. We used bottle incubation experiments to measure the feeding rates of a cladoceran (Daphnia sp.), a calanoid copepod (Acartia spp.), and 2 cyclopoid copepods (Oithona davisae and Limnoithona tetraspina) on the ...
Rollwagen-Bollens, G. +2 more
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Resistance and Resilience of Pelagic and Littoral Fishes to Drought in the San Francisco Estuary [PDF]
Many estuarine ecosystems and the fish communities that inhabit them have undergone substantial changes in the past several decades, largely due to multiple interacting stressors that are often of anthropogenic origin. Few are more impactful than droughts, which are predicted to increase in both frequency and severity with climate change. In this study,
Brian Mahardja +8 more
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Application of a New Shore-Based Vessel Traffic Monitoring System Within San Francisco Bay
Vessel traffic management systems can be employed for environmental management where vessel activity may be of concern. One such location is in San Francisco Bay where a variety of vessel types transit a highly developed urban estuary. We analyzed vessel
Samantha Cope +8 more
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