Direct observation and quantitative characterization of chemotactic behaviors in Caribbean coral larvae exposed to organic and inorganic settlement cues DOI Creative Commons

Koumudhi Deshpande,

Daniel Gysbers,

Joaquín Yus

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: March 24, 2025

Upon their arrival in the water column, coral larvae use physical and chemical cues to navigate toward a suitable habitat begin settlement process. To engineer substrates that influence settlement, it is important have quantitative data about types concentrations of chemicals elicit desired behavioral responses before after contact with substrate. Here, we quantified morphological (Colpophyllia natans Orbicella faveolata) crustose coralline algae exudates (CCA) ions found skeletons using chemotactic assays microfluidic channels. Multiple each channel were tracked over 30 min quantify overall attraction or repulsion presence various dissolved cues. Larvae showed $${\text{MgC}}{\text{l}}_{2}$$ , both $${\text{CaC}}{\text{l}}_{2}$$ CCA exudates, $${\text{SrC}}{\text{l}}_{2}$$ depending on concentration. The changes exhibited by individual investigated as well. Using particle tracking methods larval behavior, typically straight swimming C. increased turning behavior regions high associated local searching, while they decreased near . We also shrink length when exposed 50× seawater concentration calcium, potential stress escape response, these elongated response benthic crawling. These results highlight value direct observation understanding interplay between environment. Incorporating such calcium into artificial can specific larvae, thereby enhancing contributing reef restoration efforts.

Language: Английский

Direct observation and quantitative characterization of chemotactic behaviors in Caribbean coral larvae exposed to organic and inorganic settlement cues DOI Creative Commons

Koumudhi Deshpande,

Daniel Gysbers,

Joaquín Yus

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: March 24, 2025

Upon their arrival in the water column, coral larvae use physical and chemical cues to navigate toward a suitable habitat begin settlement process. To engineer substrates that influence settlement, it is important have quantitative data about types concentrations of chemicals elicit desired behavioral responses before after contact with substrate. Here, we quantified morphological (Colpophyllia natans Orbicella faveolata) crustose coralline algae exudates (CCA) ions found skeletons using chemotactic assays microfluidic channels. Multiple each channel were tracked over 30 min quantify overall attraction or repulsion presence various dissolved cues. Larvae showed $${\text{MgC}}{\text{l}}_{2}$$ , both $${\text{CaC}}{\text{l}}_{2}$$ CCA exudates, $${\text{SrC}}{\text{l}}_{2}$$ depending on concentration. The changes exhibited by individual investigated as well. Using particle tracking methods larval behavior, typically straight swimming C. increased turning behavior regions high associated local searching, while they decreased near . We also shrink length when exposed 50× seawater concentration calcium, potential stress escape response, these elongated response benthic crawling. These results highlight value direct observation understanding interplay between environment. Incorporating such calcium into artificial can specific larvae, thereby enhancing contributing reef restoration efforts.

Language: Английский

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