Marine teleost locates live prey through pH sensing.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 24904164.
- Also identified by DOI 10.1126/science.1252697.
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Abstract
We report that the Japanese sea catfish Plotosus japonicus senses local pH-associated increases in H(+)/CO2 equating to a decrease of ≤0.1 pH unit in ambient seawater. We demonstrated that these sensors, located on the external body of the fish, detect undamaged cryptic respiring prey, such as polychaete worms. Sensitivity is maximal at the natural pH of seawater (pH 8.1 to 8.2) and decreases dramatically in seawater with a pH <8.0.
Medical subject headings
- Catfishes
- Feeding Behavior
- Food
- Perception
- Seawater