B--Assessing Management Actions and Their Effects on
ID: 140G0325Q0167Type: Solicitation
Overview

Buyer

INTERIOR, DEPARTMENT OF THEUS GEOLOGICAL SURVEYOFFICE OF ACQUISITON GRANTSSACRAMENTO, CA, 95819, USA

NAICS

Other Scientific and Technical Consulting Services (541690)

PSC

SPECIAL STUDIES/ANALYSIS- ANIMAL/FISHERIES (B516)

Original Source

https://sam.gov/opp/19ba98cea1ae4676835f7112425a9a7c/view
Timeline
    Description

    The U.S. Geological Survey (USGS) is seeking qualified contractors to provide professional services for statistical modeling support related to trout population dynamics as part of the Glen Canyon Dam Adaptive Management Program. The primary objective is to evaluate the impact of dam operations on the rainbow trout fishery downstream, focusing on environmental factors such as dissolved oxygen levels and temperature variations, as well as the effects of flow management and nonnative species on trout populations. This initiative is critical for enhancing understanding of trout dynamics and informing effective management strategies in the Grand Canyon region. Interested vendors must submit their proposals electronically by August 4, 2025, at 1500 PST, and can direct inquiries to Yangzhi Deng at yangzhideng@usgs.gov. The contract period is estimated from September 1, 2025, to August 31, 2026, with four option years, and the procurement is not set aside for small businesses.

    Point(s) of Contact
    Deng, Yangzhi
    (916) 278-9326
    yangzhideng@usgs.gov
    Files
    Title
    Posted
    Combined_Synopsis_Solicitation_Attachments_trout.pdf
    The project titled "Trout Recruitment and Growth Dynamics Modeling" aims to support the Glen Canyon Dam Adaptive Management Program by providing statistical modeling to evaluate the impact of dam operations on the rainbow trout fishery downstream. Scheduled between fiscal years 2025 and 2027, the project addresses the influence of environmental factors, such as dissolved oxygen levels and temperature variations, on trout recruitment, growth, and survival. It incorporates a mark-recapture sampling design across designated reaches between Glen Canyon Dam and Lees Ferry to estimate demographic parameters. Key research questions focus on the effects of flow management actions, the dispersal of trout populations, and the impact of warm-water nonnative species on trout dynamics. The contractor will analyze data quarterly and produce demographic estimates within 60 days of sampling events, while also enabling the development of peer-reviewed articles and presentations at relevant scientific meetings. Overall, this initiative seeks to enhance understanding of trout population dynamics amid changing aquatic conditions, contributing to effective trout management strategies aligned with the established goals of the Long Term Experimental and Management Plan. This project emphasizes collaboration among various stakeholders, including federal and state agencies, in addressing ecological challenges posed by water management practices.
    Sol_140G0325Q0167_Amd_0001.pdf
    The document pertains to an amendment of a solicitation for professional services related to statistical modeling support for trout species population dynamics. The amendment updates the Statement of Work, indicating that the contractor will not be required to plan and coordinate sampling trips. The deadline for submitting offers remains unchanged, set for August 4, 2025, at 1500 PST, with no additional questions accepted. The performance period for the contract is outlined as from September 1, 2025, to August 31, 2030. Contractors are required to acknowledge receipt of the amendment and return signed copies to the issuing agency. The amendment serves to clarify terms and expectations for potential bidders responding to the request for proposals issued by the government, emphasizing the administrative requirements tied to the contract modification process. Overall, the amendment ensures clarity and provides essential updates that impact the submission of offers and contract execution.
    Sol_140G0325Q0167.pdf
    The document presents a Request for Quotation (RFQ) numbered 140G0325Q0167, issued by the U.S. Geological Survey (USGS) for professional services related to trout population dynamics. It requests quotes from vendors for statistical model support, with the aim to evaluate offers based on technical qualifications, experience, and fixed pricing over a base period (09/01/2025 to 08/31/2026) plus four option years, depending on fund availability. Vendors must submit detailed proposals, including project plans, resumes, and references. The solicitation specifies that it is not set aside for small businesses, with a NAICS code of 541690. Interested parties are encouraged to submit inquiries by a specific deadline and provide all required documents electronically—hardcopy submissions will not be accepted. The project encompasses both immediate and subsequent option years, emphasizing the continuity of support for trout research efforts. Overall, this RFQ aims to engage qualified consultants for a critical environmental study, ensuring compliance with federal procurement standards.
    SOW_Trout_dyn_final_1.pdf
    The Trout Recruitment and Growth Dynamics Modeling project aims to provide statistical modeling support regarding the impact of Glen Canyon Dam operations on the downstream rainbow trout fishery. This work supports the Glen Canyon Dam Adaptive Management Program’s Triannual Workplan for FY 2025-2027. Key goals include understanding how environmental factors like dissolved oxygen and temperature influence trout dynamics and evaluating experimental flow management actions to suppress nonnative species affecting trout populations. The project proposes a mark-recapture sampling design to estimate trout demographic parameters and address eight research questions focused on recruitment, growth, survival, and the effects of climate change and management actions on trout populations. The contractor will conduct quarterly analyses of sampled data and collaborate with partners from the Arizona Game and Fish Department and GCMRC to publish findings and present results at relevant scientific meetings. This project is critical for informing management strategies aimed at maintaining and enhancing the rainbow trout population while balancing ecological health within the Glen Canyon area.
    SOW_Trout_dyn_rev_0001.pdf
    The Trout Recruitment and Growth Dynamics Modeling project aims to provide statistical modeling support to address crucial scientific inquiries regarding the impact of Glen Canyon Dam operations on the rainbow trout fishery downstream. This initiative is part of the Glen Canyon Dam Adaptive Management Program's three-year work plan for fiscal years 2025-2027. It focuses on understanding how environmental conditions, flow management, and the introduction of nonnative species influence trout populations. The project's methodology includes a multi-reach mark-recapture sampling design, which will gather data to analyze demographic parameters. Key objectives include assessing the effects of various factors—such as dissolved oxygen levels, water temperature, and management actions—on the growth and survival of both rainbow and brown trout. Additionally, the project aims to forecast the impacts of climate change and evaluate the operational practices of Glen Canyon Dam that could support a healthy trout fishery alongside native species. Quarterly analysis of collected mark-recapture data will be conducted to provide timely insights into trout population dynamics. Outcomes will contribute to both academic publications and presentations at relevant scientific meetings, underscoring the project's significance in informing management strategies for sustaining fish populations in the Grand Canyon region.
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