Publications by authors named "Katherine Jeno"
Massive mortalities in farmed larvae of the scallop have been associated with pathogenic outbreaks. An energetic trade-off between development-associated demands and immune capacity has been observed. Given that highly unsaturated fatty acids (HUFAs) are essential nutrients for larval development, we evaluated the effect of diets based on microalgae low and high in HUFAs (LH and HH, respectively) on the energetic condition and the immune response of scallop larvae.
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- Climate change stressors like ocean warming (OW) and ocean acidification (OA) impact the fitness traits of the rocky-shore gastropod Concholepas concholepas, particularly when considering non-consumptive effects (NCEs) from predators like the crab Acanthocyclus hassleri.
- Despite some resilience, certain traits such as metabolic rate and feeding rates are negatively affected by these stressors, especially under predation risk, showing that the interplay between climate factors and predator presence is crucial.
- The study highlights the complex interactions between climate change and biotic stressors, suggesting that while some traits of C. concholepas remain stable, others are vulnerable to disruptions caused by warming and acid
The scallop is an important resource for Chilean and Peruvian aquaculture. Seed availability from commercial hatcheries is critical due to recurrent massive mortalities associated with bacterial infections, especially during the veliger larval stage. The immune response plays a crucial role in counteracting the effects of such infections, but being energetically costly, it potentially competes with the physiological and morphological changes that occur during early development, which are equally expensive.
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