12 documents found, page 1 of 2
Hypercapnia-induced disruption of long-distance mate-detection and reduction of...
Borges, Francisco; Sampaio, Eduardo; Figueiredo, Cátia; Rosa, Rui; F. Grilo, TiagoOcean acidification (OA) has been shown to disrupt behavioural responses either by affecting metabolic processes, or by effectively impairing an organisms' ability to gather and assess information and make decisions. Given the lack of information regarding the effects of high CO2 on olfactory-mediated mating behaviours in crustaceans, the possible chemosensory disruption in male mate-tracking in the keystone am...
Ocean acidification dampens physiological stress response to warming and contam...
Sampaio, Eduardo; Lopes, Ana Rita; Francisco, Sofia; Paula, José Ricardo; Pimentel, Marta; Luísa Maulvault, Ana; Repolho, Tiago; F. Grilo, TiagoIncreases in carbon dioxide (CO2) and other greenhouse gases emissions are changing ocean temperature and carbonate chemistry (warming and acidification, respectively). Moreover, the simultaneous occurrence of highly toxic and persistent contaminants, such as methylmercury, will play a key role in further shaping the ecophysiology of marine organisms. Despite recent studies reporting mostly additive interaction...
Accumulation, elimination and neuro-oxidative damage under lanthanum exposure i...
Figueiredo, Cátia; F. Grilo, Tiago; Lopes, Clara; Brito, Pedro; Diniz, Mário S.; Caetano, Miguel; Rosa, Rui; Raimundo, JoanaRare earth elements (REEs) comprise elements from lanthanum to lutetium that together with yttrium and scandium are emergent contaminants of critical importance for numerous groundbreaking environmental technologies. Transfer to aquatic ecosystems is expected to increase, however, little information is known about their potential impacts in marine biota. Considering the endangered conservation status of the Eur...
Seasonal and latitudinal variation in seagrass mechanical traits across Europe:...
Soissons, L. M.; van Katwijk, M. M.; Peralta, G.; Brun, F. G.; Cardoso, P. G.; F. Grilo, Tiago; Ondiviela, B.; Recio, M.; Valle, M.; Garmendia, J. M.Seagrasses are marine flowering plants distributed worldwide. They are however threatened, mostly due to the increase of human activities. Seagrasses have the capacity to adapt their morphological, physiological, and mechanical traits to their local conditions. Mechanical traits have been identified as a good tool to investigate a plant‐species capacity to withstand physical forces or disturbances but are still...
Transgenerational deleterious effects of ocean acidification on the reproductiv...
Borges, Francisco; Figueiredo, Cátia; Sampaio, Eduardo; Rosa, Rui; F. Grilo, TiagoOcean acidification (OA) poses a global threat to marine biodiversity. Notwithstanding, marine organisms may maintain their performance under future OA conditions, either through acclimation or evolutionary adaptation. Surprisingly, the transgenerational effects of high CO2 exposure in crustaceans are still poorly understood. For the first time, the present study investigated the transgenerational effect of OA,...
Latitudinal Patterns in European Seagrass Carbon Reserves: Influence of Seasona...
Soissons, Laura M.; Haanstra, Eeke P.; van Katwijk, Marieke M.; Asmus, Ragnhild; Auby, Isabelle; Barillé, Laurent; Brun, Fernando G.Seagrass meadows form highly productive and valuable ecosystems in the marine environment. Throughout the year, seagrass meadows are exposed to abiotic and biotic variations linked to (i) seasonal fluctuations, (ii) short-term stress events such as, e.g., local nutrient enrichment, and (iii) small-scale disturbances such as, e.g., biomass removal by grazing. We hypothesized that short-term stress events and sma...
Sex differences in oxidative stress responses of tropical topshells (Trochus hi...
F. Grilo, Tiago; Lopes, Ana Rita; Sampaio, Eduardo; Rosa, Rui; Cardoso, Patrícia G.Given scarcity of knowledge on gender ecophysiological responses of tropical marine organisms to global climate change, the major aim of this research was to investigate potential sex differences in oxidative status of topshell Trochus histrio, after a combined exposure to increased temperature and pCO2. Lipid peroxidation, heat-shock response and antioxidant enzymatic activities were evaluated. Lipid peroxidat...
Seagrass ecophysiological performance under ocean warming and acidification
Repolho, Tiago; Duarte, Bernardo; Dionísio, Gisela; Paula, José Ricardo; Lopes, Ana Rita; Rosa, Inês; F. Grilo, Tiago; Caçador, Isabel; Calado, RicardoSeagrasses play an essential ecological role within coastal habitats and their worldwide population decline has been linked to different types of anthropogenic forces. We investigated, for the first time, the combined effects of future ocean warming and acidification on fundamental biological processes of Zostera noltii, including shoot density, leaf coloration, photophysiology (electron transport rate, ETR; ma...
New climatic targets against global warming: will the maximum 2 °C temperature ...
Crespo, Daniel; F. Grilo, Tiago; Baptista, Joana; Coelho, João Pedro; Lillebø, Ana Isabel; Cássio, Fernanda; Fernandes, Isabel; Pascoal, CláudiaThe Paris Agreement signed by 195 countries in 2015 sets out a global action plan to avoid dangerous climate change by limiting global warming to remain below 2 °C. Under that premise, in situ experiments were run to test the effects of 2 °C temperature increase on the benthic communities in a seagrass bed and adjacent bare sediment, from a temperate European estuary. Temperature was artificially increased in s...
Intersexuality in aquatic invertebrates: Prevalence and causes
F. Grilo, Tiago; Rosa, RuiThis review is the first assembling information on intersexuality in aquatic invertebrates, from freshwater to estuarine and marine environments. Intersex is a condition whereby an individual of a gonochorist (separate sexes) species has oocytes or distinct stages of spermatogonia, at varying degrees of development, within the normal gonad of the opposite gender (i.e. spermatocytes in the ovary or oocytes in th...