Results 21 to 30 of about 3,644,032 (224)

Delivering Food to Hungry Fish in the San Francisco Estuary [PDF]

open access: yesFrontiers for Young Minds, 2021
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
openaire   +1 more source

Protection and restoration of coastal habitats yield multiple benefits for urban residents as sea levels rise

open access: yesnpj Urban Sustainability, 2022
Globally, rising seas threaten massive numbers of people and significant infrastructure. Adaptation strategies increasingly incorporate nature-based solutions.
A. D. Guerry   +12 more
doaj   +1 more source

Integrating High-Resolution Coastal Acidification Monitoring Data Across Seven United States Estuaries

open access: yesFrontiers in Marine Science, 2021
Beginning in 2015, the United States Environmental Protection Agency’s (EPA’s) National Estuary Program (NEP) started a collaboration with partners in seven estuaries along the East Coast (Barnegat Bay; Casco Bay), West Coast (Santa Monica Bay; San ...
Nicholas A. Rosenau   +16 more
doaj   +1 more source

Murky Mysteries of Young Lamprey in the San Francisco Estuary

open access: yesFrontiers for Young Minds, 2022
Early one morning, a scientist collecting fish in the San Francisco Estuary was surprised to find a young lamprey. She knew lamprey were ancient fish without jaws, bones, or scales, and she wondered to herself: Where else are young lamprey in the estuary?
Pascale Ava Lake Goertler   +2 more
openaire   +1 more source

Nutrient Dynamics of the San Francisco Estuary [PDF]

open access: yes, 2020
Over the last few decades, the San Francisco Estuary has experienced a decline in primary productivity that has resulted in the scarcity of food at higher trophic levels.
Wong, Kirsten, Quezon, Rhea
core  

Denser and greener cities: Green interventions to achieve both urban density and nature

open access: yesPeople and Nature, 2023
Green spaces in urban areas—like remnant habitat, parks, constructed wetlands, and street trees—supply multiple benefits. Many studies show green spaces in and near urban areas play important roles harbouring biodiversity and promoting human well‐being ...
Robert I. McDonald   +15 more
doaj   +1 more source

Participatory Risk Assessment of Humpback Whale (Megaptera novaeangliae) and Leatherback Turtle (Dermochelys coriacea) Bycatch in Northern Peru

open access: yesFrontiers in Marine Science, 2021
Uncertainties about the magnitude of bycatch in poorly assessed fisheries impede effective conservation management. In northern Peru, small-scale fisheries (SSF) bycatch negatively impacts marine megafauna populations and the livelihoods of fishers which
Anna B. Costanza   +12 more
doaj   +1 more source

An assessment of future tidal marsh resilience in the San Francisco Estuary through modeling and quantifiable metrics of sustainability

open access: yesFrontiers in Environmental Science, 2022
Quantitative, broadly applicable metrics of resilience are needed to effectively manage tidal marshes into the future. Here we quantified three metrics of temporal marsh resilience: time to marsh drowning, time to marsh tipping point, and the probability
James T. Morris   +3 more
doaj   +1 more source

Non-indigenous hydromedusae in California's upper San Francisco Esturary: life cycles, distribution, and potential environmental impacts

open access: yesScientia Marina, 2000
Two species of hydromedusae, assumed to be native to the Black and Caspian Seas, were routinely collected in Suisun Slough, California, at the Suisun City Marina, during late summer and fall of 1997.
John T. Rees, Lisa-Ann Gershwin
doaj   +1 more source

Recovery of great blue herons (Ardea herodias) within the Chesapeake Bay

open access: yesThe Journal of Wildlife Management, EarlyView.
We surveyed great blue herons throughout the tidal reach of the Chesapeake Bay in 2013 and mapped 423 colonies supporting 15,094 pairs. The population has increased more than four‐fold since the mid‐1970s. Colony size has declined. Invasion of colonies by bald eagles may be driving a change in spatial structure.
Bryan D. Watts   +2 more
wiley   +1 more source

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