WorldCat Identities

Brown, Randy J. (Randy John)

Overview
Works: 18 works in 19 publications in 1 language and 46 library holdings
Genres: Academic theses 
Roles: Author, Other
Classifications: SH11, 570
Publication Timeline
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Most widely held works by Randy J Brown
Comparison of inconnu spawning abundance estimates in the Selawik River, 1995, 2004, and 2005, Selawik National Wildlife Refuge by Raymond F Hander( Book )

1 edition published in 2008 in English and held by 4 WorldCat member libraries worldwide

Selawik River inconnu (sheefish) Stenodus leucichthys spawning migrations were sampled using mark-recapture techniques. An increase in population was discovered and discussed as the result of an episodic recruitment event of young inconnu into the spawning population
Estimated abundance of adult fall chum salmon in the middle Yukon River, Alaska, 1998-1999( Book )

1 edition published in 2000 in English and held by 3 WorldCat member libraries worldwide

Whitefish biology, distribution, and fisheries in the Yukon and Kuskokwim River drainages in Alaska : a synthesis of available information( Book )

1 edition published in 2012 in English and held by 3 WorldCat member libraries worldwide

A radiotelemetry investigation of the spawning origins of Innoko River inconnu (sheefish) by Randy J Brown( Book )

1 edition published in 2012 in English and held by 3 WorldCat member libraries worldwide

Radiotelemetry techniques were used to expand our understanding of spawning locations, seasonal distribution, and movements of sheefish or inconnu Stenodus leucichthys in the Innoko River drainage
A radio telemetry investigation of suspected chum salmon spawning activity in the Kashunuk River drainage, Yukon Delta National Wildlife Refuge, 2002 and 2003 by Randy J Brown( Book )

1 edition published in 2005 in English and held by 3 WorldCat member libraries worldwide

Migratory patterns of Yukon River inconnu as determined with otolith microchemistry and radio telemetry by Randy J Brown( Book )

1 edition published in 2000 in English and held by 3 WorldCat member libraries worldwide

"Migratory patterns of Yukon River inconnu Stenodus leucichthys were evaluated using otolith aging and microchemical techniques and radio telemetry. Research was conducted each fall between 1997 and 1999, on inconnu captured at a study site 1,200 river km from the Bering Sea. Biological data were collected to establish maturity and spawning condition. Sagital otoliths were analyzed optically to determine age distribution, and microchemically to determine amphidromy. Inconnu were tagged with radio transmitters and located in upstream spawning destinations. Inconnu captured at the study site were uniformly large, mature fish preparing to spawn. Age estimates ranged from 7 to 28 years. Microchemical analyses suggested that the population was amphidromous rather than freshwater only. Preliminary testing of radio transmitter attachment methods showed that the internal method (pushed through the esophagus into the stomach) was superior to the external method (attached behind the dorsal fin) for use with migrating inconnu. Most radio-tagged inconnu were located during their spawning time in a common region of the Yukon River. Inconnu captured at the study site each fall were mature fish engaged in a spawning migration that originated in the lower Yukon River or associated estuary regions, and continued towards a common spawning destination in the Yukon River, approximately 1,700 river km from the sea"--Leaf 3
A biological assessment of whitefish species harvested during the spring and fall in the Selawik River delta, Selawik National Wildlife Refuge, Alaska by Randy J Brown( Book )

1 edition published in 2004 in English and held by 3 WorldCat member libraries worldwide

A biological sampling was conducted during June and September 2003 to examine age and size distribution, maturity and spawning conditions, the incidence of anadromy, and relative seasonal abundance of broad whitefish (Coregonus nasus), humpback whitefish (Coregonus pidschian), and least cisco (Coregonus sardinella)
Humpback whitefish Coregonus pidschian of the upper Tanana River drainage by Randy J Brown( Book )

1 edition published in 2006 in English and held by 3 WorldCat member libraries worldwide

Movement patterns of radio-tagged adult humpback whitefish in the Upper Tanana River Drainage by Randy J Brown( Book )

1 edition published in 2002 in English and held by 3 WorldCat member libraries worldwide

Estimated abundance of adult fall chum salmon in the Upper Yukon River, Alaska, 1996( Book )

1 edition published in 1998 in English and held by 2 WorldCat member libraries worldwide

Life history and demographic characteristics of arctic cisco, Dolly Varden, and other fish species in the Barter Island region of northern Alaska by Randy J Brown( Book )

1 edition published in 2008 in English and held by 2 WorldCat member libraries worldwide

Estimated abundance of adult fall chum salmon in the upper Yukon River, Alaska, 1997( Book )

1 edition published in 2000 in English and held by 2 WorldCat member libraries worldwide

Presents results of a mark-recapture experiment using Darroch's two-sample, stratified model to estimate the number of fall chum salmon migrating up the Yukon River above the Tanana River from July 21-September 28, 1997. Results reaffirm conclusions drawn in 1996 that this model provides a viable means of estimating the abundance of fall chum salmon in the upper Yukon River
Beaver dam influence on fish distribution in lentic and lotic habitats in the Black River drainage, Alaska by Randy J Brown( Book )

2 editions published in 2001 in English and held by 2 WorldCat member libraries worldwide

Describes populations and distributions of fish in three oxbow lakes with beaver dams across outlet streams. Data include size, sex, feeding location, and stomach contents, and abundance of captured fish
Offshore ocean dispersal of adult Dolly Varden Salvelinus malma in the Beaufort Sea by Michael B Courtney( )

1 edition published in 2018 in English and held by 2 WorldCat member libraries worldwide

Spawning Distribution of Bering Ciscoes in the Yukon River( )

1 edition published in 2015 in English and held by 1 WorldCat member library worldwide

Abstract: Bering Ciscoes Coregonus laurettae are anadromous salmonids with known spawning populations only in the Yukon, Kuskokwim, and Susitna rivers in Alaska. A commercial fishery for the species was recently initiated at the mouth of the Yukon River, inspiring a series of research projects to enhance our understanding of the exploited population. This study was designed to delineate the geographic spawning distribution of Bering Ciscoes in the Yukon River. One hundred radio transmitters per year in 2012 and 2013 were deployed in prespawning Bering Ciscoes at a site located 1, 176km upstream from the sea. A total of 160 fish survived fish wheel capture and tagging, avoided harvest and predation after tagging, and continued migrating upstream to their spawning destinations. Approximately 79% migrated to spawn in the upper Yukon Flats, upstream from the mouth of the Porcupine River, and 21% migrated to spawn in the lower Yukon Flats. Locating the Bering Cisco spawning area, which is almost entirely encompassed by the Yukon Flats National Wildlife Refuge, enhances our ability to protect it from anthropogenic disturbance and enables future biological research on the spawning population. Received July 25, 2014; accepted November 13, 2014
Determining the Movements and Distribution of Anadromous Bering Ciscoes by Use of Otolith Strontium Isotopes( )

1 edition published in 2016 in English and held by 1 WorldCat member library worldwide

Abstract: Methods for tracking the movements and distribution of fishes have often involved expensive field logistics, which is compounded in remote regions such as Alaska. An alternative approach is to use the chemical signatures preserved in the otoliths of teleost fish to track their movement history. We used the strontium isotope signature (87 Sr/ 86 Sr) preserved in the freshwater portion of otoliths taken from Bering Ciscoes Coregonus laurettae to identify their natal river of origin and their movements. Bering Ciscoes spawn in freshwater rivers and rear in coastal marine waters. Just three spawning rivers are known for this species worldwide: the Yukon, Kuskokwim, and Susitna rivers. Rearing commonly occurs in coastal estuaries and lagoons along the Arctic coast of Alaska, the Yukon-Kuskokwim (Y-K) delta, and (rarely) the Alaska Peninsula. We compiled a set (n = 127) of Bering Cisco otoliths from fish caught in coastal marine habitats within each of these rearing areas. We measured the 87 Sr/ 86 Sr values from the freshwater portions of the otoliths and compared them to an established baseline of signatures for Bering Ciscoes sampled from the known spawning rivers. We found that 96% of the unknown-origin specimens from the three rearing groups (Alaska Arctic coast, Y-K delta, and Alaska Peninsula) had 87 Sr/ 86 Sr values that were consistent with a Yukon River origin. The dominance of Yukon River-origin fish in all rearing groups suggests that this population is considerably larger than the Kuskokwim River or Susitna River population. These data also indicate a widespread coastal distribution of Bering Ciscoes, with some individuals estimated to have traveled over 4, 900 km between coastal rearing locations and the spawning habitat. Our approach illustrates that strontium isotopes can be used to determine the natal river and migration behavior for anadromous Bering Ciscoes of unknown origin. Received April 4, 2016; accepted August 12, 2016 Published online October 14, 2016
 
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Alternative Names
Brown, Randolf J.

Brown, Randolph John

Languages
English (19)