Collin Lab

Directory of Calyptraeid Researchers

Cristian Segura

My research is focused on the ecophysiology of estuarine mollusks. During the last few years my main interest has been on the problems related to the brooding of encapsulated embryos of Crepipatella dilatata. Mothers of this species have the ability of isolate themselves and their brooded capsules from the external environment during low salinity events. Taking into consideration that situation, my research has focused on metabolic response of mother and embryo during these isolated events. Also, I study the impacts of oxygen deficiency on the future juvenile development.

Phone: 56 63 221791
Address: Instituto de Biología Marina, Universidad Austral de Chile, casilla 567, Valdivia, CHILE

Publications on Calyptraeids from the last 6 years.

Chaparro OR, Segura CJ, Navarro JM & RJ Thompson (2004). The effect of food supply on feeding strategy in sessile female gastropds Crepidula fecunda. Marine Biology 144: 79-87.

Chaparro OR, Saldivia CL, Pereda SV, Segura CJ, Montiel YA & R Collin (2005). The reproductive cycle and development of Crepipatella fecunda (Gastropoda: Calyptraeidae) from southern Chile. Journal of Marine Biology Association of the United Kingdom 85: 157-161.

Montiel YA, Chaparro OR & CJ Segura (2005). Changes in feeding mechanisms during early ontogeny in juveniles of Crepidula fecunda (Gastropoda, Calyptraeidae). Marine Biology 147: 1333-1342.

Chaparro OR, Montiel YA, Segura CJ, Cubillos VM, Thompson RJ & JM Navarro (2008). The effect of salinity on clearance rate in the suspension-feeding estuarine gastropod Crepipatella dilatata under natural and controlled conditions. Estuarine, Coastal and Shelf Science 76: 861-868.

Chaparro OR, Segura CJ, Montory JA, Navarro JM & Pechenik JA (2009). Brood chamber isolation during salinity stress in two estuarine mollusk species: from a protective nursery to a dangerous prision. Marine Ecology Progress Series. 374: 145-155.

Segura CJ, Chaparro OR, Paschke KA, Pechenik JA (2010). Capsule walls as barriers to oxygen availability: Implications for the development of brooded embryos by the estuarine gastropod Crepipatella dilatata (Calyptraeidae) Journal of Experimental Marine Biology and Ecology 390: 49–57.

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