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Related Concept Videos

Sources of Food Contamination01:29

Sources of Food Contamination

Contamination of food by microbial agents and natural toxins poses significant risks to public health. These hazards can be introduced at various points across the food supply chain, ranging from environmental sources to processing and storage stages. Understanding these contamination pathways is critical for developing strategies to ensure food safety.Seafood is particularly vulnerable to contamination through both environmental exposure and microbial colonization. Toxins from harmful algal...
Marine Microbial Ecology01:30

Marine Microbial Ecology

Marine microbial ecosystems are shaped by distinct physicochemical limits, including high salinity, low nutrient availability, and fluctuating oxygen levels. These conditions favor smaller microbial cell sizes, which maximize their surface-to-volume ratio for efficient nutrient uptake.Microbial activity and community composition are closely linked to biogeochemical cycles, particularly in dynamic environments like estuaries, where halotolerant microbes thrive in response to variable salinity...
Reservoir of Infection01:30

Reservoir of Infection

Infectious diseases arise from intricate interactions between pathogens and their reservoirs. A reservoir of infection refers to the natural habitat where a pathogen lives, grows, and multiplies, serving as a continual source of infection. Reservoirs are broadly classified as either living or nonliving, and each plays a unique role in disease transmission, significantly influencing public health interventions and control strategies.Humans act as reservoirs for a wide array of pathogens,...
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Biofuels

The microbial conversion of organic matter into biofuels holds potential as a renewable energy source. Among biofuel sources, microalgae are recognized as a highly efficient and adaptable feedstock for biodiesel production, owing to their rapid biomass accumulation, elevated lipid productivity, and capacity to proliferate in diverse aquatic systems, including freshwater, marine, and wastewater habitats. Unlike terrestrial crops, microalgae do not compete for land and can achieve significantly...
Hazard Analysis and Critical Control Points (HACCP)01:30

Hazard Analysis and Critical Control Points (HACCP)

Hazard Analysis and Critical Control Points (HACCP) is a science-based, preventive system used globally to ensure food safety by identifying, evaluating, and controlling biological, chemical, and physical hazards throughout food production. Originally developed by NASA and the Pillsbury Company for astronaut food, HACCP is now a core component of the Codex Alimentarius.HACCP operates on prerequisite programs—such as Good Manufacturing Practices (GMPs), sanitation procedures, and supplier...
Primary Production01:06

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The total amount of energy acquired by primary producers in an ecosystem is called gross primary production (GPP). However, of this energy, producers use some for metabolic processes, and some is lost as heat, decreasing the amount of energy available to the next trophic level. The remaining usable amount of energy is called the net primary productivity (NPP). In terrestrial ecosystems, NPP is driven by climate, while light penetration and nutrient availability drive NPP in aquatic ecosystems.

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Related Experiment Video

Updated: Jul 18, 2026

Design and Use of an Apparatus for Quantifying Bivalve Suspension Feeding at Sea
07:20

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Published on: September 5, 2018

Problems associated with shellfish farming.

S Chinabut1, T Somsiri, C Limsuwan

  • 1Department of Fisheries, Jatujak, Bangkok, Thailand.

Revue Scientifique Et Technique (International Office of Epizootics)
|November 11, 2006
PubMed
Summary

Shellfish farming poses public health risks primarily from algal biotoxins and sewage contamination, not direct disease transmission from shellfish. Shrimp farming also presents risks from zoonoses and drug residues.

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Area of Science:

  • Aquaculture and Public Health
  • Food Safety
  • Environmental Science

Background:

  • Shellfish culture is a significant global aquaculture sector.
  • Public health concerns include zoonoses and drug residues from shellfish farming.
  • Key species examined are molluscs, crabs, and shrimp.

Purpose of the Study:

  • To identify and evaluate public health and environmental hazards associated with shellfish farming practices.
  • To differentiate between shellfish diseases and risks from farming methods.
  • To assess specific risks in shrimp farming.

Main Methods:

  • Review of scientific literature on shellfish farming and associated risks.
  • Analysis of common contaminants and pathogens.
  • Examination of environmental impacts of aquaculture effluent.

Main Results:

  • Shellfish diseases are generally not transmissible to humans.
  • Primary human health risks stem from marine algal biotoxins and sewage contamination (bacteria, viruses).
  • Shrimp farming hazards include zoonoses, chemical contamination, and veterinary drug residues.

Conclusions:

  • Shellfish farming methods, not shellfish diseases, are the main public health concern.
  • Algal biotoxins and sewage contamination are significant risks.
  • Environmental risks from untreated shrimp farm effluent, including plankton blooms, are notable.