title: Behavioral thermoregulation and critical thermal limits of giant keyhole limpet Megathura crenulata(Sowerby 1825) (Mollusca; Vetigastropoda).
abstract: The thermoregulatory behavior of the giant keyhole limpet Megathura crenulata was determined in a horizontal thermal gradient during the day at 18.9 °C and 18.3 °C for the night. The final preferendum determined for giant keyhole limpets was of 18.6±1.2 °C. Limpets' displacement velocity was 10.0±3.9 cm h(-1) during the light phase and 8.4±1.6 cm h(-1) during the dark phase. The thermotolerance (measured as CTMax at 50%) was determined in a keyhole limpet in three acclimation temperatures 17, 20, and 23 °C. Limpets were subjected to water increasing temperatures at a rate of 1 °C every 30 min, until they detached from the substrate. The critical thermal maximum at 50% was 27.2, 27.9 and 28.3 °C respectively.
authors.affiliation: Laboratorio de Ecofisiología de Organismos Acuáticos, Departamento de Biotecnología Marina, Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE), Carretera Ensenada-Tijuana # 3918, Ensenada, Baja California, México. Electronic address: fdiaz@cicese.mx.
authors.forename: Fernando
authors.initials: F
authors.lastname: Díaz
authors.affiliation: Laboratorio de Ecofisiología de Organismos Acuáticos, Departamento de Biotecnología Marina, Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE), Carretera Ensenada-Tijuana # 3918, Ensenada, Baja California, México.
authors.forename: Ana
authors.initials: A
authors.lastname: Denisse Re
authors.affiliation: Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Kilometro 103 Carretera Tijuana-Ensenada, Ensenada, Baja California, México.
authors.forename: Alfredo
authors.initials: A
authors.lastname: Salas
authors.affiliation: Laboratorio de Genómica Funcional, Departamento de Biotecnología Marina, Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE), Carretera Ensenada-Tijuana # 3918, Ensenada, Baja California, México.
authors.forename: Clara E
authors.initials: CE
authors.lastname: Galindo-Sanchez
authors.affiliation: Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Kilometro 103 Carretera Tijuana-Ensenada, Ensenada, Baja California, México.
authors.forename: Marco A
authors.initials: MA
authors.lastname: Gonzalez
authors.affiliation: Unidad Multidisciplinaria de Docencia e Investigación, Facultad de Ciencias, Universidad Nacional Autónoma de México, Puerto de abrigo s/n, Sisal, Yucatán, México.
authors.forename: Adolfo
authors.initials: A
authors.lastname: Sanchez
authors.affiliation: Unidad Multidisciplinaria de Docencia e Investigación, Facultad de Ciencias, Universidad Nacional Autónoma de México, Puerto de abrigo s/n, Sisal, Yucatán, México.
authors.forename: Carlos
authors.initials: C
authors.lastname: Rosas
mesh_terms: D000064:Acclimatization / Q000502:physiology*; D000818:Animals; D001522:Behavior, Animal; D001833:Body Temperature Regulation / Q000502:physiology; D049851:Gastropoda / Q000502:physiology*; D013696:Temperature
keywords: Critical thermal maxima; Gastropod; Preferred temperature