Senior Fish Biologist-Part Time
Listed on 2025-12-31
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Science
Environmental Science, Biology -
Outdoor/Nature/Animal Care
Environmental Science
Environmental Science Associates (ESA) is a 100% employee-owned environmental consulting firm. We plan, design, permit, mitigate, and restore for projects across our communities, infrastructure systems, open spaces, and wildlands. We are 50 years strong in 21 offices across California, the Pacific Northwest, and the Southern United States.
ESA is looking for a part-time Senior Fish Biologist to join our Fish and Aquatic Sciences team in Northern California. This person has extensive experience implementing fisheries and aquatic science field studies. This position will include serving as a variable part-time professional who implements specialized fisheries and aquatic field investigations, including fish population monitoring, conducting water quality and hydrologic monitoring, and completing compliance monitoring for terrestrial and aquatic species.
Minimum five years of professional experience required with experience operating and trailering boats, using a wide range of fish and water quality sampling gear, and performing light maintenance on sampling gear and equipment.
- You are a field-focused fisheries technician/biologist who thrives in the field and is passionate about monitoring fisheries populations and collecting high-quality environmental data.
- You have a minimum of 10 years of experience in the fisheries or aquatic biology field.
- Extensive experience operating and trailering boats, using a wide range of fish and water quality sampling gear, and performing light maintenance on sampling gear and equipment.
- You have experience maintaining sampling equipment and organizing sampling gear.
- You will thrive in a fast-paced, challenging environment and can manage multiple responsibilities and deadlines while working on a team or independently.
- You enjoy fieldwork and can walk long distances carrying a backpack, and can lift at least 50 pounds.
- You are confident working outside, in remote and rural settings, as well as in urban environments. Physical outdoor work may include, but may not be limited to, work in all types of weather, traversing uneven ground and sometimes steep terrain in forested environments, fields, arid lands, along stream banks, and in coastal/intertidal areas. You may be exposed to inclement weather and uncomfortable working conditions.
Some night and/or weekend work may be required.
- Conduct fisheries and water quality investigations using a large variety of sampling gear across California.
- Provide excellent time/budget management, organizational capabilities, attention to detail, and strong problem-solving skills.
- Act as crew leader, leading teams of biologists in completion of fisheries and aquatic surveys.
- Collaborate with interdisciplinary teams to help deliver projects on time and within budgeting in a fast-paced work environment.
- Use your experience and critical thinking to select and apply standard techniques, methods and procedures for components of a wide range of lower to moderately complex tasks and assignments.
- Use a range of fish collection gear (electrofishing units, nets, traps, water quality sampling gear) to collect data on fish populations.
- Use a wide range of water quality and hydrologic sampling gear (including sondes, data loggers, adcp units).
- Operate and trailer a wide range of boats.
- Help with the maintenance of vessels including but not limited to maintaining service records (Fleetio), performing routine oil changes, supporting boat and trailer repair, and scheduling comprehensive services as needed.
The ESA fish and aquatic sciences practice functions across the entire project life cycle—from strategic planning and permitting, to study design and field implementation, all the way through to analysis, reporting, and public outreach. Our multidisciplinary expertise enables us to provide complete and integrated fisheries and aquatic sciences services. This includes use of advanced technologies to solve some of the most complex scientific and regulatory challenges.
We have a team of 18 fish biologists based out of Northern California that complete field investigations throughout the state of California.
Joining ESA means becoming part of a close-knit team of environmental professionals who contribute to outstanding projects, improve environmental stewardship, and advance a more sustainable and resilient future for our communities and wild places.
Eligible to participate in ESA's sick leave program. May be eligible to participate in our employee stock ownership program and tax deferred 401(k) plan if you meet the eligibility requirements for these plans.
ESA has established multiple pay ranges tailored to the economic factors in the geographies in which ESA staff reside. For this position, the range is approximately as listed based on our anticipated hiring locations as noted in the above job details. Actual compensation is determined by several factors including but not…
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