Two ill-explored hypotheses might explain host castration by parasitic pea crabs. The ‘energy drain’ hypothesis states that castration is caused by host-derived nutrient consumption of parasites that ultimately diminishes ...

On the intertidal rocky shores of central Chile, the lichen Thelidium litorale (Ascomycete: Verrucariacea) is commonly found encrusting shells of gastropods such as Scurria araucana, S. ceciliana and S. boehmita, and plates ...

Parasitic castrators utilize the energy reserves that the host allocates on reproduction resulting in sterilization of the host. However, whether other processes (e.g., growth) are also impaired depends on the balance ...

In this study we analyze the predator-prey relationship between muricid gastropods (mainly Trophon geversianus) and the limpets Nacella magellanica, Fissurella radiosa, Diodora patagonica and Siphonaria lessoni from recent ...

Limpets are gastropod molluscs that inhabit intertidal rocky shores. Due to the localization of these animals, they are exposed to a wide variety of environmental stressors: tidal immersion/emersion cycles, sharp salinity ...

During the last years, shell alterations in gastropods have been proposed as tools to be used in monitoring programs. However, no studies were so far performed investigating the relationships among shell parameters and ...

Siphonaria lessoni (Blainville, 1824) is the most abundant marine gastropod in the rocky intertidal zone of Buenos Aires Province, Argentina. The morphology of this species was studied in 6 sites near the city of Quequén, ...

The hypothesis of this work was that oxidative and nitrosative metabolism in the digestive gland (DG) of two limpet populations (intertidal and subtidal) of the Antarctic species Nacella concinna show different behavior ...

Parasites may induce metabolic changes and imbalances in the redox status of hosts. This study tested the effect of parasites on the O2 consumption rate (O2-CR) of hosts, and explored the link between O2-CR and oxidative ...