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Reproduction traits and strategies of two Sardinella species off the Southwest ...
Quiatuhanga, Domingas; Morais, Pedro; Krug, Lilian; Teodosio, MariaSmall pelagic fishes such as Sardinella aurita (Valenciennes, 1847) and Sardinella maderensis (R. T. Lowe, 1838) are key intermediate-level components of the marine food web of the southwestern African coast. Their biomass off Angola has shown significant interannual variability, and information about their reproduction is insufficient in the region for adequate stock management. Thus, we aimed to unveil the re...
An integrated coastal ecosystem monitoring strategy: Pilot case in Naf-Saint Ma...
Sarker, Subrata; Krug, Lilian; Islam, Kazi Mainul; Basak, Shyamal Chandra; Huda, A. N. M. Samiul; Hossain, Md. Shahadat; Das, NabanitaRapid population growth creating an excessive pressure on the marine environment and thus monitoring of marine ecosystem is essential. However, due to high technical and financial involvement, monitoring of coastal ecosystem is always challenging in developing countries. This study aims to develop an integrated coastal ecosystem monitoring system that combines scientific sampling, numerical model simulation and...
Impact of the citizen science project COLLECT on ocean literacy and well-being ...
Severin, Marine I.; Akpetou, Lazare Kouame; Annasawmy, Pavanee; Asuquo, Francis Emile; Beckman, Fiona; Benomar, Mostapha; Jaya-Ram, AnnettePlastic pollution is both a societal and environmental problem and citizen science has shown to be a useful tool to engage both the public and professionals in addressing it. However, knowledge on the educational and behavioral impacts of citizen science projects focusing on marine litter remains limited. Our preregistered study investigates the impact of the citizen science project Citizen Observation of Local...
Putting training into practice: an alumni network global monitoring program
Krug, Lilian; Sarker, Subrata; Huda, Samiul; Gonzalez-Silvera, Adriana; Edward, Akinnigbagbe; Berghoff, Carla; Naranjo, Christian; Mahu, EdemThe ocean benefits humankind by producing half of the global oxygen supply, absorbing a significant portion of atmospheric carbon dioxide, and providing us with food, transportation, and a means of livelihood. Nevertheless, human activities have been making the global ocean more acidic, warmer, and lower in oxygen (IPCC, 2021). Such changes and their impacts on ecosystems are highly variable, particularly in co...
Strong upwelling conditions drive differences in species abundance and communit...
Lourenco, Carla R.; Nicastro, Katy; McQuaid, Christopher D.; Krug, Lilian; Zardi, Gerardo I.Upwelling strongly influences the composition and dynamics of coastal communities by affecting species abundances, recruitment, dispersal and distribution. Coastal upwelling areas are key model regions to study the responses of coastal species to climate change because they are characterized by cooler water conditions and experience lower warming rates than adjacent regions, making them effective 'control' or r...
Delineation of ocean surface provinces over a complex marine domain (off SW Ibe...
Krug, Lilian; Platt, Trevor; Barbosa, Ana B.incorporating its dynamic nature. The area off Southwest Iberian Peninsula (SWIP), located between temperate and subtropical waters, includes oceanic and coastal domains affected by atmospheric and ocean circulation patterns, as well as coastal processes. The objectives of this study were to delineate a dynamic abiotic-based partition of the heterogeneous surface SWIP area into environmental provinces (EPs), ev...
Ocean surface provinces off Southwest Iberia based on satellite remote sensing
Krug, LilianThis thesis aimed to partition the complex surface marine domain off Southwest Iberia Peninsula (SWIP), using satellite remote sensing, and use it to assess phytoplankton variability patterns and underlying environmental drivers (1997 – 2015). Three unsupervised partition strategies, based on distinct input databases and temporal representations, detected a variable number of partition units (regions, provinces...
Are submarine groundwater discharges affecting the structure and physiological ...
Piló, David; Barbosa, Ana B.; Teodosio, Maria; Encarnação, J.; Miguel de Sousa Leitão, Francisco; Range, Pedro; Krug, Lilian; Cruz, J.; Chícharo, LuísThis study evaluated the impacts of submarine groundwater discharges (SGD) on a rocky intertidal community of South Portugal, during April-November 2011. Chlorophyll-a concentration was higher at the SGD site in respect to the Reference site. Epibenthic community structure differed between sites, with an increase in Chthamalus spp. and a decrease in macroalgae coverage at the SGD site. The abundance and body si...
Patterns and drivers of phytoplankton phenology off SW Iberia: a phenoregion ba...
Krug, Lilian; Platt, Trevor; Sathyendranath, Shubha; Barbosa, Ana B.Phytoplankton patterns, tightly linked to the dynamics of the ocean surface layer and its atmospheric forcing, have major impacts on ecosystem functioning and are valuable indicators of its response to environmental variability and change. Phytoplankton phenology and its underlying drivers are spatially variable, and the study of its patterns, particularly over heterogeneous regions, benefits from a delineation...
Ocean surface partitioning strategies using Ocean Colour Remote Sensing: a review
Krug, Lilian; Platt, T.; Sathyendranath, S.; Barbosa, Ana B.The ocean surface is organized into regions with distinct properties reflecting the complexity of interactions between environmental forcing and biological responses. The delineation of these functional units, each with unique, homogeneous properties and underlying ecosystem structure and dynamics, can be defined as ocean surface partitioning. The main purposes and applications of ocean partitioning include the...