5 documents found, page 1 of 1
Defective skeletogenesis and oversized otoliths in fish early stages in a chang...
Pimentel, Marta S.; Faleiro, Filipa; Dionisio, Gisela; Repolho, Tiago; Pousão-Ferreira, Pedro; Machado, Jorge; Rosa, RuiEarly life stages of many marine organisms are being challenged by rising seawater temperature and CO(2) concentrations, but their physiological responses to these environmental changes still remain unclear. In the present study, we show that future predictions of ocean warming (+4 degrees C) and acidification (DeltapH=0.5 units) may compromise the development of early life stages of a highly commercial teleost...
Differential impacts of ocean acidification and warming on winter and summer pr...
Rosa, Rui; Trubenbach, Katja; Pimentel, Marta S.; Boavida-Portugal, Joana; Faleiro, Filipa; Baptista, Miguel; Dionísio, Gisela; Calado, RicardoLittle is known about the capacity of early life stages to undergo hypercapnic and thermal acclimation under the future scenarios of ocean acidification and warming. Here, we investigated a comprehensive set of biological responses to these climate change-related variables (2°C above winter and summer average spawning temperatures and ΔpH=0.5 units) during the early ontogeny of the squid Loligo vulgaris. Embryo...
Developmental and physiological challenges of octopus (Octopus vulgaris) early ...
Repolho, Tiago; Baptista, Miguel; Pimentel, Marta S.; Dionísio, Gisela; Trübenbach, Katja; Lopes, Vanessa M.; Lopes, Ana Rita; Calado, RicardoThe ability to understand and predict the effects of ocean warming (under realistic scenarios) on marine biota is of paramount importance, especially at the most vulnerable early life stages. Here we investigated the impact of predicted environmental warming (+3 °C) on the development, metabolism, heat shock response and antioxidant defense mechanisms of the early stages of the common octopus, Octopus vulgaris....
Trophic and reproductive biochemistry of a deep-sea gelatinous octopus, Opistho...
Rosa, Rui; Pimentel, Marta S.; Baptista, Miguel; Trübenbach, Katja; Calado, Ricardo; Nunes, Maria L.; Moreno, Ana; Pereira, JoãoThe present study provides a comprehensive analysis of the biochemical composition (proximate composition, amino acids and fatty acids in gonad, digestive gland and muscle) of the cirrate octopod, Opisthoteuthis calypso, collected off the coast of Portugal. Protein and energy contents of O. calypso were significantly lower (p\0.05) than those observed for coastal octopods, suggesting that the gelatinous musculat...
Reproduction and respiration of a climate change indicator species: effect of t...
Cruz, Joana; Garrido, Susana; Pimentel, Marta S.; Rosa, Rui; Santos, A. Miguel P.; Re, PedroThe abundance of the calanoid copepod Centropages chierchiae has increased at the northern limits of its distribution in recent decades, mainly due to oceanic climate forcing, suggesting this as a key species in monitoring climate change. Laboratory experiments were conducted to study the combined effect of temperature, food type and concentration on the egg production rate (EPR) and hatching success (HS) of C....