Why pre-screen ocean plastic researchers before the technical panel
Microplastic research has a contamination problem that is difficult to overstate. Synthetic fibres from clothing, laboratory air and equipment end up in samples, and studies without procedural blanks have reported their own laboratory back to themselves. Researchers worth hiring run blanks as standard. A short screen asks what their blanks showed and how sampling was standardised.
What actually matters when screening Ocean Plastic Researcher candidates
- 01
Technique and experimental design
Check hands-on sampling and identification methods: manta or neuston trawls, Niskin bottles, sediment cores, density separation in ZnCl2, FTIR or Raman polymer confirmation, and blank controls for airborne fibre contamination.
- 02
Results that went somewhere
Probe where their data landed: peer-reviewed papers, MSFD or NOAA marine debris datasets, OSPAR beach litter reports, contributions to plastic treaty submissions or municipal waste policy.
- 03
Troubleshooting and reproducibility
Test how they handle messy field and lab reality: fouled nets in heavy swell, spectral libraries misidentifying weathered polymers, low recovery rates, and inter-lab variability in particle counts.
- 04
Documentation and collaboration
Assess record-keeping and teamwork: field logbooks, R or Python scripts on GitHub, metadata to Darwin Core or ERDDAP standards, plus work with ship crews, volunteers and coastal communities.
Pre-screening questions to ask Ocean Plastic Researcher candidates
12 questions grouped by what they test. Ask the same set in every screen and score answers on a consistent scale, or send them as an async video screen and compare answers side by side.
Fieldwork and findings
3 questions01Can you describe a significant finding from your research?
Listen forA specific result with the method and its limitations described, and their own contribution clear.
Findings described in headline terms, or contribution to a group left unspecified.
02Can you describe your fieldwork experience in this area?
Listen forTime at sea or on shorelines with sampling gear operated personally in real conditions.
Analysis of samples collected by others only, or no field experience at all.
03Have you collaborated with other institutions on this work?
Listen forJoint work with method harmonisation discussed, and data shared in usable form.
Collaboration described as co-authorship, or methods never aligned between partners.
Method disciplined
4 questions04Which research methods are you most proficient in?
Listen forSampling, extraction and identification methods named, with their limits and biases understood.
Methods described generically, or size and mesh limitations never mentioned.
05How do you balance laboratory work with fieldwork?
Listen forBoth handled competently, with sample handling from collection to analysis controlled throughout.
One side of the work avoided, or chain of custody for samples left informal.
06How familiar are you with oceanographic data and analysis tools?
Listen forCurrents, transport modelling and environmental data all used to interpret the sampling results.
Concentrations reported without physical context, or transport processes not considered.
07Which software and instruments do you use in your work?
Listen forSpectroscopic identification used properly, with polymer confirmation rather than visual sorting alone.
Particles identified visually only, or instrument output accepted without spectral checking.
Contamination controlled
3 questions08How do you ensure the accuracy and reliability of your data?
Listen forProcedural blanks and controls run routinely, with contamination measured and reported openly.
No blanks run, or laboratory contamination assumed to be negligible.
09Can you describe troubleshooting a problem during your research?
Listen forA specific problem diagnosed, often contamination or equipment failure, with the fix described.
Problems described as bad luck, or anomalies excluded without investigation.
10What do you do to limit the environmental impact of your own research?
Listen forSampling effort and disturbance kept proportionate, with permits and protected areas respected.
Impact of the research never considered, or sampling in sensitive areas without permits.
Results reported well
2 questions11What outreach or public communication have you done on this subject?
Listen forPublic communication that keeps the uncertainty intact rather than reaching for alarming figures.
Contested statistics repeated for effect, or claims made beyond what the evidence supports.
12Have you contributed to policy work on marine pollution?
Listen forEvidence provided to policy processes, with the limits of the science stated to decision makers.
Advocacy positions presented as research findings, or evidence simplified past accuracy.
How to score responses
Score every candidate on the same four criteria immediately after the screen. At this stage you are shortlisting for panel interviews, not making the final call.
Technique and experimental design
35%5Names mesh sizes, tow durations and separation densities used, and explains why procedural blanks and Nile Red staining were chosen over alternatives.
Results that went somewhere
25%5Points to specific published datasets, first or co-authored papers, and a decision, regulation or cleanup design that changed because of their findings.
Troubleshooting and reproducibility
25%5Describes a specific failure (contaminated blanks, ambiguous spectra) plus the diagnostic steps and method revision that restored trustworthy counts.
Documentation and collaboration
15%5Shares reproducible analysis code and archived metadata, and describes training volunteers or crew to sample consistently across a multi-site campaign.
Laboratory fibres end up in samples and get reported as findings. A one-way video screen asks about blanks.
Try it on HirevireScreening FAQ
Process basics
How long should a pre-screening round for this role take?
Fifteen minutes across eight to ten questions, answered async. Enough to establish fieldwork they did, test their method discipline, and hear how they control contamination.
How much fieldwork experience should I expect?
Enough to know how samples are actually collected at sea and where the errors enter. Analysts working only with delivered samples underestimate the uncertainty in what they receive.
Evaluating answers
What is the strongest signal when screening this role?
Their procedural blanks. Researchers who take contamination seriously run them routinely and report what they found. Anyone who has not run blanks may have been measuring their own laboratory.
How do I judge their handling of comparability?
Ask how their data compares with other studies. Careful answers explain why mesh size and sampling depth make direct comparison difficult rather than presenting one global figure.
Go deeper on this role
Sanat has been hiring since 2012 and watching the recruitment industry change up close ever since, and turned that screening process into Hirevire's video screening platform. LinkedIn
