Steve Blumenshine
Professor - Dept. of Biology
California State University-Fresno M/S SB73
Fresno, CA  93740
Phone: (559) 278-8770
E-mail: sblumens (@)
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·       SB to visit Nann Fangue’s lab group at UC-Davis (Chinook Salmon metabolism)

·       New research contract from Kern Water Bank Authority

·       Welcome new lab people:  Kiana Cabasa (Honors Program), Dalia Dull (Honors Program), Gihad Mohsin, Veronica Salcedo, Gabby Vang, Stephen Winsor (MS), Jackson Xiong

·       Congratulations to undergrad researcher Monet Gomes:  Offered & accepted a competitive MS position at Auburn University

·       2017 Conferences:  Salmon Restoration Federation (Davis), CSU WRPI (San Jose), Soc Freshwater Science (Raleigh, NC), ESA (Portland)


Teaching: General Ecology, Aquatic Ecology, Case Studies in Ecology, Biostats (Grad), Advanced Data Analysis (Grad)


CV Info






Lab People:


Steve Blumenshine
Lab PI, etc…
BS Univ Wisconsin
MS George Mason
PhD Notre Dame
Post-doc U. MD


MS Students

Mike Grill
Chinook Salmon Development; Thermal Regimes

Elli Rosenthal
Growth Rate Variation among Chinook Salmon cohorts and rearing conditions

Jamie Castro
Control of Precocity in Spring-Run Chinook Salmon

Thomas Gromis
Environmental Variables Associated with the Distribution of Western Pearlshell Mussels

Karen Boortz
SJR Floodplain Production Study

Chris Hensley

Trait-Based Analysis of the Urban Biotic Filter on Bird Assemblages

Petros Chyrsafis

Mammal use of Riparian Habitats; Effects of Development & Vegetation Levels

Stephen Winsor

Wetland Pond Invertebrate & Waterbird Assemblages


Raquetball Associate



Emily Ramirez

The role of disturbance on San Joaquin River macroinvertebrate assemblages

Skylar Nguyen

Revision of juvenile Chinook Salmon bioenergetic parameters

Dalia Dull (Undergraduate)

Thermal Variation in Juvenile Chinook Habitats in their Pacific Range

Kiana Cabasa

Prey Resources use by Mosquitofish in KWB Ponds
(Stable Isotopes)

Gabby Vang

15N enrichment in Juvenile Chinook under Controlled Conditions

Jackson Xiong

Coffee Guru & Project TBD

Efrain Jiminez
Field & Lab Support

Primary Invert Guru

Paul Carillo
Fish Habitat Assessment of an Isolated Gravel Mining Pond

Veronica Salcedo
Field & Lab Support

Gihad Mohsin
Aquatic Habitat use of KWB Waterbirds



Research Interests:  My research objectives include asking of how factors intrinsic and extrinsic to aquatic habitats interact and influence the structure and functioning of aquatic ecosystems.  For example, while the transfer of material through food webs is dictated by consumer-resource interactions and/or physical dynamics within the habitat, properties extrinsic to food webs may set a template in which these interactions operate.  Landscape or watershed features coupled with hydrology can play a critical role in both the distribution of species and runoff to ecosystems, which may respectively limit potential food web configurations and productivity.  I also link basic and theoretical research to applied ecosystem management.  A positive and significant outcome of this objective would be to give some resolution to the existing mismatch of the spatial and temporal scales of research and management approaches. 

This research typically straddles the interface of inland aquatic communities and ecosystems.  Research funding is driven by the importance of understanding factors which may compromise surface water and thus aquatic communities and ecosystems.  Within this focus is an emphasis on how human impacts such as hydrological manipulation, nutrient loading, and fish management affect aquatic habitats, populations, and communities.   Recent research methodology includes analysis of large datasets, a broad range of statistical techniques, stable isotope analyses, and enough field sampling of water, habitats, and biota to keep tabs on local conditions.

  Ongoing & Recent Research Projects:

Biological and Habitat Assessment of Ponds in the Kern Water Bank (Kern Water Bank Authority; $50,500, 2017)

Main Qs:  What biological and hydrological variables are associated with waterbird assemblages on the KWB ponds?

How do biological attributes vary spatially in a hydrologically-managed system?

San Joaquin River Floodplain Production & Chinook Salmon Growth (US Bureau of Reclamation;  $990,357, 2013-2016;
Co-PI Joe Merz, Cramer Fish Sciences;)

Main Qs: 

What floodplain attributes best foster juvenile Chinook salmon survival and growth? 


How does water management affect this balance?


San Joaquin River Predator Study - Salmon Restoration (Fresno Regional Foundation; $23,546- 2013; US Fish & Wildlife Service; $60,000 2013-2014)


Main Qs:

How does the probability of predation mortality for juvenile Chinook salmon vary over time and space? 

Are these probabilities more influenced by hydrology, predator movements, or an interaction between the two? 

Habitat and Population Analyses of Delta and Longfin Smelt (Center for California Water Resources Policy and Management; $32,000, 2012-2014)

Main Q:

Are Longfin Smelt populations in the SF Bay-Delta resistant and resilient to variation in freshwater discharge through the system?



Recently Completed Projects

Patterns and Sources of Fecal Indicator Bacteria in the San Joaquin River (Revive the San Joaquin; CSU-Fresno Associated Students and the College of Sci & Math)

San Joaquin River – Effects of River Restoration on Angling and River Recreation
(CA Fish & Game; Lead PI-Dr. Mark Somma; 2010-2012)




Assessment of the Effects of Chemical Contaminants Used in Illegal Marijuana Cultivation in California National Parks (US NPS; w/ Graduate Student Daniel Jeffcoach 2011-2012)