FEEDING BEHAVIOR IN POLYPS OF THE CHESAPEAKE BAY SEA NETTLE,CHRYSAORA QUINQUECIRRHA(DESOR, 1848)

Feeding mechanisms and feeding strategies of Atlantic reef corals

“…Our observations for all species suggest that there were two levels of response to feeding stimuli in corals. The two responses, the adoption of a preparatory feeding posture and the capture/ingestive movements, appeared to be separate and were similar to feeding behaviour described for the sea anemone Tealia by McFarlane (1970), for the sea nettle C'hrysaora by Loeb & Blanquet (' 1973), for the zooanthiid Palythoa by Reimer (1971), and for hermatypic corals by Mariscal & Lenhoff (1968) and Lehman & Porter (1973). In all cases a chemical stimulus was needed to evoke a preparatory feeding posture and a tactile stimulus triggered a series of subsequent feeding reactions.…”

Feeding mechanisms and feeding strategies of Atlantic reef corals

“…Our observations for all species suggest that there were two levels of response to feeding stimuli in corals. The two responses, the adoption of a preparatory feeding posture and the capture/ingestive movements, appeared to be separate and were similar to feeding behaviour described for the sea anemone Tealia by McFarlane (1970), for the sea nettle C'hrysaora by Loeb & Blanquet (' 1973), for the zooanthiid Palythoa by Reimer (1971), and for hermatypic corals by Mariscal & Lenhoff (1968) and Lehman & Porter (1973). In all cases a chemical stimulus was needed to evoke a preparatory feeding posture and a tactile stimulus triggered a series of subsequent feeding reactions.…”

Sensory discrimination by isolated feeding tentacles in Sanderia malayensis

“…In sea anemone, for example, proline triggers a food capture response while glutathione triggers ingestion (Lindstedt 1971). In scyphomedusa, polyps of Chrysaora exhibit feeding behaviors in response to various amino acids and peptides, and a specific feeding step for each amino acid such as contraction or writhing was also observed in excised tentacles (Loeb and Blanquet 1973). For a Sanderia medusa tentacle, filtered mussel juice and nine amino acids were used to investigate the roles of chemosensory system on the feeding response.…”

Aquatic Invertebrates: Model Systems for Study of Receptor Activation and Evolution of Receptor Proteins

“…For example, let us assume that the earliest cnidarians responded to a wider range of amino acids and to GSH, as has been reported for Chrysaora (81). Possibly from these early cnidarians there evolved one whose receptor was modified so that it would recognize both GSH and proline.…”

Feeding mechanisms and feeding strategies of Atlantic reef corals

“…Our observations for all species suggest that there were two levels of response to feeding stimuli in corals. The two responses, the adoption of a preparatory feeding posture and the capture/ingestive movements, appeared to be separate and were similar to feeding behaviour described for the sea anemone Tealia by McFarlane (1970), for the sea nettle C'hrysaora by Loeb & Blanquet (' 1973), for the zooanthiid Palythoa by Reimer (1971), and for hermatypic corals by Mariscal & Lenhoff (1968) and Lehman & Porter (1973). In all cases a chemical stimulus was needed to evoke a preparatory feeding posture and a tactile stimulus triggered a series of subsequent feeding reactions.…”

Sensory discrimination by isolated feeding tentacles in Sanderia malayensis

“…In sea anemone, for example, proline triggers a food capture response while glutathione triggers ingestion (Lindstedt 1971). In scyphomedusa, polyps of Chrysaora exhibit feeding behaviors in response to various amino acids and peptides, and a specific feeding step for each amino acid such as contraction or writhing was also observed in excised tentacles (Loeb and Blanquet 1973). For a Sanderia medusa tentacle, filtered mussel juice and nine amino acids were used to investigate the roles of chemosensory system on the feeding response.…”

Aquatic Invertebrates: Model Systems for Study of Receptor Activation and Evolution of Receptor Proteins

“…For example, let us assume that the earliest cnidarians responded to a wider range of amino acids and to GSH, as has been reported for Chrysaora (81). Possibly from these early cnidarians there evolved one whose receptor was modified so that it would recognize both GSH and proline.…”

Feeding mechanisms and feeding strategies of Atlantic reef corals

“…Our observations for all species suggest that there were two levels of response to feeding stimuli in corals. The two responses, the adoption of a preparatory feeding posture and the capture/ingestive movements, appeared to be separate and were similar to feeding behaviour described for the sea anemone Tealia by McFarlane (1970), for the sea nettle C'hrysaora by Loeb & Blanquet (' 1973), for the zooanthiid Palythoa by Reimer (1971), and for hermatypic corals by Mariscal & Lenhoff (1968) and Lehman & Porter (1973). In all cases a chemical stimulus was needed to evoke a preparatory feeding posture and a tactile stimulus triggered a series of subsequent feeding reactions.…”

Sensory discrimination by isolated feeding tentacles in Sanderia malayensis

“…In sea anemone, for example, proline triggers a food capture response while glutathione triggers ingestion (Lindstedt 1971). In scyphomedusa, polyps of Chrysaora exhibit feeding behaviors in response to various amino acids and peptides, and a specific feeding step for each amino acid such as contraction or writhing was also observed in excised tentacles (Loeb and Blanquet 1973). For a Sanderia medusa tentacle, filtered mussel juice and nine amino acids were used to investigate the roles of chemosensory system on the feeding response.…”

Aquatic Invertebrates: Model Systems for Study of Receptor Activation and Evolution of Receptor Proteins

“…For example, let us assume that the earliest cnidarians responded to a wider range of amino acids and to GSH, as has been reported for Chrysaora (81). Possibly from these early cnidarians there evolved one whose receptor was modified so that it would recognize both GSH and proline.…”