Timothy L. Hoffnagle

736 total citations
25 papers, 558 citations indexed

About

Timothy L. Hoffnagle is a scholar working on Nature and Landscape Conservation, Ecology and Aquatic Science. According to data from OpenAlex, Timothy L. Hoffnagle has authored 25 papers receiving a total of 558 indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Nature and Landscape Conservation, 18 papers in Ecology and 11 papers in Aquatic Science. Recurrent topics in Timothy L. Hoffnagle's work include Fish Ecology and Management Studies (20 papers), Parasite Biology and Host Interactions (7 papers) and Fish Biology and Ecology Studies (7 papers). Timothy L. Hoffnagle is often cited by papers focused on Fish Ecology and Management Studies (20 papers), Parasite Biology and Host Interactions (7 papers) and Fish Biology and Ecology Studies (7 papers). Timothy L. Hoffnagle collaborates with scholars based in United States. Timothy L. Hoffnagle's co-authors include Rebecca A. Cole, Anindo Choudhury, Richard W. Carmichael, Albert J. Fivizzani, Carole C. McIvor, Donald M. Van Doornik, Richard A. Valdez, Ted McKinney, Joseph E. Hazel and Roderic A. Parnell and has published in prestigious journals such as Ecological Applications, Aquaculture and Canadian Journal of Fisheries and Aquatic Sciences.

In The Last Decade

Timothy L. Hoffnagle

24 papers receiving 511 citations

Peers

Timothy L. Hoffnagle

ECOLO

NLC

GPC

WST

Helge Skoglund Norway

Y. Mailhot Canada

P. A. Frear United Kingdom

John W. Heinrich United States

R. G. Doupé Australia

Michael Godard United Kingdom

Allen F. Evans United States

Kimberly A. Hruska Canada

A. De Sostoa Spain

J. Scott Foott United States

Helge Skoglund Norway

Timothy L. Hoffnagle

294 ×0.8

ECOLO

398 ×1.1

NLC

110 ×0.6

154 ×1.3

GPC

80 ×1.0

WST

Citations per year, relative to Timothy L. Hoffnagle Timothy L. Hoffnagle (= 1×) peers Helge Skoglund

Countries citing papers authored by Timothy L. Hoffnagle

Since Specialization

Citations

This map shows the geographic impact of Timothy L. Hoffnagle's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Timothy L. Hoffnagle with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Timothy L. Hoffnagle more than expected).

Fields of papers citing papers by Timothy L. Hoffnagle

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Timothy L. Hoffnagle. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Timothy L. Hoffnagle. The network helps show where Timothy L. Hoffnagle may publish in the future.

Co-authorship network of co-authors of Timothy L. Hoffnagle

This figure shows the co-authorship network connecting the top 25 collaborators of Timothy L. Hoffnagle. A scholar is included among the top collaborators of Timothy L. Hoffnagle based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Timothy L. Hoffnagle. Timothy L. Hoffnagle is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Hoffnagle, Timothy L., et al.. (2016). The Influence of Size at Release on Performance of Imnaha River Chinook Salmon Hatchery Smolts. North American Journal of Fisheries Management. 36(2). 363–374. 9 indexed citations

Doornik, Donald M. Van, et al.. (2013). Genetic Monitoring of Threatened Chinook Salmon Populations: Estimating Introgression of Nonnative Hatchery Stocks and Temporal Genetic Changes. North American Journal of Fisheries Management. 33(4). 693–706. 15 indexed citations

Cole, Rebecca A., et al.. (2012). Parasites of Fishes in the Colorado River and Selected Tributaries in Grand Canyon, Arizona. Journal of Parasitology. 98(1). 117–127. 10 indexed citations

Berejikian, Barry A., et al.. (2010). Mating success of alternative male phenotypes and evidence for frequency-dependent selection in Chinook salmon, Oncorhynchus tshawytscha. Canadian Journal of Fisheries and Aquatic Sciences. 67(12). 1933–1941. 74 indexed citations

Hoffnagle, Timothy L., et al.. (2009). Migration Characteristics of Hatchery and Natural Spring Chinook Salmon Smolts from the Grande Ronde River Basin, Oregon, to Lower Granite Dam on the Snake River. Transactions of the American Fisheries Society. 138(5). 1093–1108. 16 indexed citations

Hoffnagle, Timothy L., et al.. (2008). Run Timing, Spawn Timing, and Spawning Distribution of Hatchery- and Natural-Origin Spring Chinook Salmon in the Imnaha River, Oregon. North American Journal of Fisheries Management. 28(1). 148–164. 39 indexed citations

Hoffnagle, Timothy L., et al.. (2006). The Effect of Moderately Increased and Variable Raceway Flow Rates on Juvenile Physiology, Survival, and Adult Return of Hatchery‐Reared Chinook Salmon. Transactions of the American Fisheries Society. 135(6). 1567–1577. 18 indexed citations

Hansen, Scott P., Anindo Choudhury, Dennis M. Heisey, et al.. (2006). Experimental infection of the endangered bonytail chub (Gila elegans) with the Asian fish tapeworm (Bothriocephalus acheilognathi): impacts on survival, growth, and condition. Canadian Journal of Zoology. 84(10). 1383–1394. 34 indexed citations

Choudhury, Anindo, Timothy L. Hoffnagle, & Rebecca A. Cole. (2004). PARASITES OF NATIVE AND NONNATIVE FISHES OF THE LITTLE COLORADO RIVER, GRAND CANYON, ARIZONA. Journal of Parasitology. 90(5). 1042–1053. 40 indexed citations

10.

Carmichael, Richard W., et al.. (2004). Chinook Salmon Recreational Fishery Creel Survey on Lookingglass Creek for the 2001 Run Year Fish Research and Development, Northeast Region Oregon Department of Fish and Wildlife. 1 indexed citations

11.

Schmidt, John C., Roderic A. Parnell, Paul E. Grams, et al.. (2001). THE 1996 CONTROLLED FLOOD IN GRAND CANYON: FLOW, SEDIMENT TRANSPORT, AND GEOMORPHIC CHANGE. Ecological Applications. 11(3). 657–671. 69 indexed citations

12.

Valdez, Richard A., et al.. (2001). Effects of a Test Flood on Fishes of the Colorado River in Grand Canyon, Arizona. Ecological Applications. 11(3). 686–686. 2 indexed citations

13.

Schmidt, John C., Roderic A. Parnell, Paul E. Grams, et al.. (2001). The 1996 Controlled Flood in Grand Canyon: Flow, Sediment Transport, and Geomorphic Change. Ecological Applications. 11(3). 657–657. 5 indexed citations

14.

Valdez, Richard A., et al.. (2001). EFFECTS OF A TEST FLOOD ON FISHES OF THE COLORADO RIVER IN GRAND CANYON, ARIZONA. Ecological Applications. 11(3). 686–700. 60 indexed citations

15.

Thieme, Michele, et al.. (2001). Effects of pool formation and flash flooding on relative abundance of young‐of‐year flannelmouth suckers in the Paria River, Arizona. Regulated Rivers Research & Management. 17(2). 145–156. 10 indexed citations

16.

Hoffnagle, Timothy L., Rebecca A. Cole, & Anindo Choudhury. (2000). Parasites of Native and Non-native Fishes of the Lower Little Colorado River, Arizona 2000 Annual Report.

17.

Hoffnagle, Timothy L., et al.. (1997). Distribution and prevalence of the Asian fish tapeworm, Bothriocephalus acheilognathi, in the Colorado River and tributaries, Grand Canyon, Arizona, including two new host records.. 64(2). 219–226. 43 indexed citations

18.

Clarkson, Robert W., Anthony T. Robinson, & Timothy L. Hoffnagle. (1997). ASIAN TAPEWORM (BOTHRIOCEPHALUS ACHEILOGNATHI) IN NATIVE FISHES FROM THE LITTLE COLORADO RIVER, GRAND CANYON, ARIZONA. Biodiversity Heritage Library (Smithsonian Institution). 57(1). 66–69. 20 indexed citations

19.

Hoffnagle, Timothy L., Rebecca A. Cole, & Wesley L. Shoop. (1990). Gastrointestinal parasites of the blue catfish (Ictalurus furcatus) in Kentucky Lake, Tennessee.. 57(1). 40–43. 4 indexed citations

20.

Hoffnagle, Timothy L. & Albert J. Fivizzani. (1990). Stimulation of Plasma Thyroxine Levels by Novel Water Chemistry during Smoltification in Chinook Salmon (Oncorhynchus tshawytscha). Canadian Journal of Fisheries and Aquatic Sciences. 47(8). 1513–1517. 29 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

Explore authors with similar magnitude of impact