Understanding effects of EMF emissions from Marine Renewable Energy Devices on commercially important edible crab

2018 · Mixed · Low evidence

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MixedLow evidencePaper 2072

Exposure to simulated EMF had no effect on haemocyanin concentrations, respiration rate, activity level, or antennular flicking rate. EMF exposure significantly disrupted haemolymph l-lactate and d-glucose natural circadian rhythms; crabs showed attraction to…

Study snapshot

Publicationmanual · 2018

Study typeanimal

Reported directionMixed

Evidence ratingLow

Abstract

Understanding effects of EMF emissions from Marine Renewable Energy Devices on commercially important edible crab Scott K, Harsanyi P, Lyndon AR. Understanding the effects of electromagnetic field emissions from Marine Renewable Energy Devices (MREDs) on the commercially important edible crab, Cancer pagurus (L.). Mar Pollut Bull. 2018 Jun;131(Pt A):580-588. Abstract The effects of simulated electromagnetic fields (EMF), emitted from sub-sea power cables, on the commercially important decapod, edible crab (Cancer pagurus), were assessed. Stress related parameters were measured (l- Lactate, d-Glucose, Haemocyanin and respiration rate) along with behavioural and response parameters (antennular flicking, activity level, attraction/avoidance, shelter preference and time spent resting/roaming) during 24-h periods. Exposure to EMF had no effect on Haemocyanin concentrations, respiration rate, activity level or antennular flicking rate. EMF exposure significantly disrupted haemolymph l-Lactate and d-Glucose natural circadian rhythms. Crabs showed a clear attraction to EMF exposed shelter (69%) compared to control shelter (9%) and significantly reduced their time spent roaming by 21%. Consequently, EMF emitted from Marine Renewable Energy Devices (MREDs) will likely affect edible crabs both behaviourally and physiologically, suggesting that the impact of EMF on crustaceans must be considered when planning MREDs. ncbi.nlm.nih.gov

Machine Enhanced Logic

AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typeanimal

Effect directionmixed

PopulationEdible crab (Cancer pagurus)

Sample sizeNot supplied

Exposure24-h periods

Evidence strengthLowConfidence: 74% · Peer reviewed: yes

Main findings

Outcomes measured

Haemocyanin concentrations
Respiration rate
Activity level
Antennular flicking rate
Haemolymph l-Lactate (circadian rhythm disruption)
Haemolymph d-Glucose (circadian rhythm disruption)
Attraction/avoidance (shelter preference)
Time spent resting/roaming

Limitations

EMF exposure characteristics (e.g., field strength, frequency) not reported in the provided abstract
Sample size not reported in the provided abstract

View raw extracted JSON

{
  "study_type": "animal",
  "exposure": {
    "band": null,
    "source": "sub-sea power cables (simulated EMF) from Marine Renewable Energy Devices (MREDs)",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": "24-h periods"
  },
  "population": "Edible crab (Cancer pagurus)",
  "sample_size": null,
  "outcomes": [
    "Haemocyanin concentrations",
    "Respiration rate",
    "Activity level",
    "Antennular flicking rate",
    "Haemolymph l-Lactate (circadian rhythm disruption)",
    "Haemolymph d-Glucose (circadian rhythm disruption)",
    "Attraction/avoidance (shelter preference)",
    "Time spent resting/roaming"
  ],
  "main_findings": "Exposure to simulated EMF had no effect on haemocyanin concentrations, respiration rate, activity level, or antennular flicking rate. EMF exposure significantly disrupted haemolymph l-lactate and d-glucose natural circadian rhythms; crabs showed attraction to EMF-exposed shelter (69% vs 9% control) and reduced time spent roaming by 21%.",
  "effect_direction": "mixed",
  "limitations": [
    "EMF exposure characteristics (e.g., field strength, frequency) not reported in the provided abstract",
    "Sample size not reported in the provided abstract"
  ],
  "evidence_strength": "low",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "electromagnetic fields",
    "sub-sea power cables",
    "Marine Renewable Energy Devices",
    "MREDs",
    "edible crab",
    "Cancer pagurus",
    "behaviour",
    "physiology",
    "circadian rhythm",
    "l-lactate",
    "d-glucose",
    "shelter preference"
  ],
  "suggested_hubs": [
    {
      "slug": "marine-renewables",
      "weight": 0.92,
      "reason": "Study evaluates EMF from Marine Renewable Energy Devices/sub-sea power cables and effects on marine species."
    },
    {
      "slug": "environmental-ecology",
      "weight": 0.78,
      "reason": "Animal/ecological impact assessment of EMF exposure on a commercially important crustacean."
    }
  ]
}

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AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: Not supplied
PubMed: Not supplied

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