Results 51 to 60 of about 853 (176)

Re-Examining Factors That Affect Delta Smelt (Hypomesus transpacificus) Entrainment at the State Water Project and Central Valley Project in the Sacramento–San Joaquin Delta [PDF]

San Francisco Estuary and Watershed Science, 2021
Managing endangered species is challenging when increased rarity leads to an inability to detect their responses to environmental conditions. In the San Francisco Estuary, the state and federally listed Delta Smelt (Hypomesus transpacificus) has declined to record low numbers, elevating concern over entrainment at the State Water Project (SWP) and ...
Grimaldo, Lenny F., Smith, William E., Nobriga, Matthew L.   +2 more
openaire   +3 more sources

A novel length back-calculation approach accounting for ontogenetic changes in the fish length – otolith size relationship during the early life of sprat (Sprattus sprattus) [PDF]

, 2012
(Sprattus sprattus), accounting for ontogenetic changes in the relationship between fish length and otolith length. In sprat, metamorphosis from larvae to juveniles is characterized by the coincidence of low length growth, strong growth in body height ...
Anderson J.T., Axel Temming, Bagge O., Bailey K.M., Bastian Huwer, Bronwyn Gillanders, Butler J.L., Catriona Clemmesen, Christian Möllmann, Claudia C. Günther, Hannes Baumann, Heath M.R., Hobbs J.A., Jens-Peter Herrmann, Köster F.W., Laidig T.E., Lee R.M., Nakamura M., Parmanne R., Rudstam L.G., Sogard S.M.   +20 more
core   +2 more sources

Did a Shifting Ecological Baseline Mask the Predatory Effect of Striped Bass on Delta Smelt? [PDF]

, 2020
Striped Bass, Morone saxatilis, has been an established member of the San Francisco Estuary’s (estuary’s) aquatic community for nearly a century and a half.
Nobriga, Matthew L., Smith, Wiliam E.
core  

Association of delta smelt with other small pelagic fishes suggests the potential for competition and proxy monitoring

Endangered Species Research
Development of habitat occupancy models for protected species with low detection rates can be difficult; however a possible solution is to use proxy species.
M Tillotson, CY Lee, C Garcia
doaj   +1 more source

The S2 Pocket Governs the Genus-Specific Substrate Selectivity of Coronavirus 3C-Like Protease. [PDF]

Adv Sci (Weinh)
This study reveals the critical role of the S2 pocket in coronavirus 3C‐like protease (CoV 3CLpro) for substrate selectivity and its variability across CoV genera. Analysis of ancestral and modern 3CLpros sheds light on evolutionary processes and their effect on the efficacy of PF‐07321332.
Zhou J, Sun P, Yang Z, Wang T, Guo J, Qiu R, Li Z, Wei D, Zheng J, Peng G, Fang L, Xiao S.   +11 more
europepmc   +2 more sources

Seasonal changes in morpho-functional aspects of two Anemonia sulcata (Pennant, 1777) wild populations [PDF]

, 2017
Marine benthic organisms can be used as indicators of the quality of environmental status and as monitoring tools to detect natural or anthropogenic perturbations.
Cammarata, M., Lentini, A., Parisi, M.
core   +1 more source

Spatiotemporal Models of an Estuarine Fish Species to Identify Patterns and Factors Impacting Their Distribution and Abundance [PDF]

, 2018
Understanding the distribution and abundance of organisms can be exceedingly difficult for pelagic fish species that live in estuarine environments. This is particularly so for fish that cannot be readily marked and released or otherwise tracked, such as
AJ Bever, C Swanson, CJ Krebs, DA Sweetnam, DD Murphy, EB Peebles, F Arreguín-Sánchez, F Feyrer, F Feyrer, JCP Reum, JE Cloern, JE Merz, JR Thomson, JS Clark, KA Rose, Ken B. Newman, KP Burnham, L Polansky, Lara Mitchell, Leo Polansky, LM Komoroske, LM Komoroske, LR Brown, Matthew L. Nobriga, ML Nobriga, MN Maunder, MN Maunder, NH Augustin, PB Moyle, R Core Team, R Mac Nally, SN Wood, SN Wood, SN Wood, SN Wood, T Hastie, WA Bennett, WA Bennett, WA Bennett, WE Odum, WJ Kimmerer, WN Venables   +41 more
core   +1 more source

SmeltCam: underwater video codend for trawled nets with an application to the distribution of the imperiled delta smelt. [PDF]

PLoS ONE, 2013
Studying rare and sensitive species is a challenge in conservation biology. The problem is exemplified by the case of the imperiled delta smelt Hypomesus transpacificus, a small delicate fish species endemic to the San Francisco Estuary, California ...
Frederick Feyrer, Donald Portz, Darren Odum, Ken B Newman, Ted Sommer, Dave Contreras, Randall Baxter, Steven B Slater, Deanna Sereno, Erwin Van Nieuwenhuyse   +9 more
doaj   +1 more source

Use of affinity analysis to guide habitat restoration and enhancement for the imperiled delta smelt

Endangered Species Research, 2020
Habitat restoration efforts in the upper San Francisco Estuary, including the Sacramento-San Joaquin Delta, California, move forward, despite a paucity of information on the environmental requirements of many targeted species.
Hamilton, SA, Murphy, DD
doaj   +1 more source

Investigating the efficacy of tidal wetland restoration in enhancing aquatic food web resources for native fishes

Restoration Ecology, EarlyView.
Abstract Introduction Endangered fish species, such as Delta smelt (Hypomesus transpacificus), in the San Francisco Estuary are threatened by a multitude of anthropogenic stressors. Tidal wetland restoration can partially mitigate these stressors by increasing food availability of aquatic invertebrate prey, but the efficacy of restoration remains ...
Gabriel Ng, Stacy Sherman, Christy Bowles, Michelle Avila   +3 more
wiley   +1 more source