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Supervisory Fish Biologist


Job Location:

Wilmington, DE - USA

Yearly Salary: USD 100059 - 100059
Posted: 6 October 2026 (20 days ago)
Application Deadline: 3 January 2027
Vacancies: 1 Vacancy

Job Summary

Summary

You will serve as a Supervisory Fish Biologist within the Department of the Interior U.S. Fish and Wildlife Service Region 3 Carterville Fish & Wildlife Conservation Office located in Wilmington Illinois.

Salary Range:
GS-12: $100059 - $130080


Duties

Some of the major duties you will perform include but are not limited to the following:

  • Conducts biological surveys on complex systems (e.g. Great Lakes and the Mississippi River) for the preservation rehabilitation and enhancement of fish populations and associated sport and commercial harvest opportunities and to determine status and trends of native or invasive aquatic species.
  • Evaluates Federal stocking programs using standard methods and makes recommendations which affect the production distribution and use of Federal hatchery fish.
  • Evaluates results of fish management activities using standard and novel fish sampling methods and statistical with the Project Leader and partners to identify priority projects determine objectives and develop procedures for conducting studies.
  • Ensures studies meet identified needs that data will be statistically representative and that results reported will be valid and reliable for decision-making.
  • Oversees the work of biologists and biological science technicians to carry out the work in a professional manner.

Requirements
Conditions of employment

    • Must provide proof of U.S. citizenship.
    • Appointment subject to background investigation and favorable adjudication.
    • Males born aftermust be registered for Selective Service.
    • Direct Deposit participation required.
    • Successfully pass the E-Verify employment verification check. To learn more visit possess and maintain a valid drivers license throughout employment.
    • You are required to wear a uniform and comply with uniform standards. A uniform allowance will be provided.

    As a condition of employment for accepting this position you may be required to serve a 1-year probationary period to evaluate your fitness and whether your continuation of employment advances the public interest.

    This probationary period is an extension of the appointment process and therefore requires the agency to determine if continued employment would advance the public interest meet the organization goals and mission of the agency and/or otherwise promote the efficiency of the determining if your employment advances the public interest the agency will consider: your performance and conduct; the needs and interests of the agency; whether your continued employment would advance organizational goals of the agency or the Government; and whether your continued employment would advance the efficiency of the Federal service.

    Under applicable law the employment of an individual serving a probationary or trial period automatically terminates when that period ends unless the agency affirmatively certifies in writing that the individuals employment should continue and that their appointment should be the absence of agency action to affirmatively certify continued employment beyond the probationary or trial period such appointments are terminated. Upon completion of your probationary period your employment will be terminated unless you receive certification in writing that your continued employment advances the public interest.

    This is a supervisory position that may require completion of a supervisory probationary period.

    Qualifications

    All qualifications must be met by the closing date of this announcement - 09/15/2026-unless otherwise stated in this vacancy announcement. Competitive candidates must also meet Time-in-Grade requirements as defined in 5 CFR 300 Subpart F.

    For current Federal employees if hours worked per week are not included on your resume you must submit a non-award SF-50 as part of your application to be used to validate your work schedule and determine the amount of specialized experience that you will be granted. An award SF-50 will not be acceptable documentation for which to consider your amount of qualifying experience. For periods of time that reflect military service the DD-214 or Statement of Service is sufficient to meet the work schedule requirement as the service dates will be reflected. For all other applicants who are not current federal employees your resume must state either full-time (or 40 hours a week) or part-time with the number of hours worked per week to ensure proper crediting of specialized experience.

    -AND-

    Minimum Qualification Requirements: To qualify for this position you must meet the following minimum qualifications: Basic Educational Requirement AND Specialized Experience for the series to which you are applying.

    Basic Educational Requirements: In addition to the specialized experience requirements for this position you must meet at least one of the following:
    A. Degree: A major in biological science that included at least 6 semester hours in aquatic subjects such as limnology ichthyology fishery biology aquatic botany aquatic fauna oceanography fish culture or related courses in the field of fishery biology; AND at least 12 semester hours in the animal sciences in such subjects as general zoology vertebrate zoology comparative anatomy physiology entomology parasitology ecology cellular biology genetics or research in these fields. (Excess course work in aquatic subjects may be used to meet this requirement when appropriate.) You must submit transcripts.
    -OR-
    B. Combination of education and experience: course work as shown in A above plus appropriate experience or additional education.

    To qualify for this position at the GS-12 grade level:
    Experience: To qualify you must possess at least one full year of specialized experience equivalent to the GS-11 level in the Federal service (obtained in either the public or private sectors). Specialized experience is defined as demonstrated experience:1) Conducting biological surveys for the management preservation rehabilitation and/or enhancement of fish populations; 2) Evaluating results of fish and other aquatic species management activities using standard and novel fish sampling method and statistical analysis; 3) Preparing reports of scientific findings and delivering presentations at professional meetings conferences and symposia; 4) Leading biological and technical staff to complete work plan objectives and tasks; 5) Collaborating with others to solve biological problems encountered in fishery management; and 6) Preparing annual work plans budget submissions and annual reporting. You must include hours per week worked. -OR-

    Volunteer Experience: Experience refers to paid and unpaid experience including volunteer work done through National Service programs (e.g. Peace Corps AmeriCorps) and other organizations (e.g. professional; philanthropic; religious; spiritual; community student social). Volunteer work helps build critical competencies knowledge and skills and can provide valuable training and experience that translates directly to paid employment. You will receive credit for all qualifying experience including volunteer experience.
    Education

    This position has a mandatory education requirement.

    You must submit a copy of your transcript(s) to support claimed education if substituting education for experience. Transcripts must include your name school name grades credit hours earned major(s) grade point average or class ranking and date the degree was conferred if applicable. A typed list of courses grades semester/quarter hours GPA etc. will not be accepted. Non-submission may result in being rated not qualified for the position. Unofficial transcripts are acceptable but if you are selected for this position and you used your education to qualify you must provide official transcripts before you begin work.

    Foreign Education: To receive credit for education completed outside the United States you must show proof that the education has been submitted to a private organization that specializes in interpretation of foreign educational credentials and such education has been deemed at least equivalent to that gained in conventional U.S. education programs. For more information on how foreign education is evaluated visit: information

    Additional vacancies may be filled using this job announcement.

    If otherwise eligible and qualified you may be offered a recruitment or relocation incentive. The decision to offer an incentive will be made on a case-by-case basis and is neither promised nor guaranteed. For information visit:
    Recruitment Incentive or Relocation Incentive. A continued service agreement may be required if it is determined you are eligible for a permanent change in duty station (PCS) recruitment or relocation incentive.

    All DOI employees their spouses and minor children may not acquire or retain any claim permit lease small tract entry or other rights granted by the Department in Federal lands with limited exceptions. Additional ethics prohibitions can be found here
    DOI Ethics Prohibitions U.S. Department of the Interior.

    Candidates should be committed to improving the efficiency of the Federal government passionate about the ideals of our American republic and committed to upholding the rule of law and the United States Constitution.

    A career with the U.S. government provides employees with a comprehensive benefits package. As a federal employee you and your family will have access to a range of benefits that are designed to make your federal career very rewarding. Opens in a new windowLearn more about federal benefits.

    Review our benefits

    Eligibility for benefits depends on the type of position you hold and whether your position is full-time part-time or intermittent. Contact the hiring agency for more information on the specific benefits offered.


    Required Experience:

    Manager