Internal Cycle of Seminars IMEDEA - Perrine Bauchot - «Deep learning for the reconstruction of oceanic currents from multi-platform observations» 

El segundo Think Tank (tanque de ideas) organizado por el IMEDEA se centrará en el sector pesquero (profesional y recreativo). Durante este encuentro, se reflexionará sobre cómo la ciencia puede ofrecer posibles soluciones a los desafíos clave en áreas como la sostenibilidad de la actividad pesquuera y el estado de las poblaciones, el efecto de las reservas, el cambio climático, la digitalización y otros temas.

El día incluirá presentaciones de los últimos avances científicos sobre el estado de la pesca recreativa y profesional, trabajo por mesas y debate plenario.

El principal objetivo de la celebración de Think Tanks organizados por el IMEDEA es el de establecer un espacio de reflexión conjunta que trascienda las fronteras entre la academia y la sociedad. 

Para más información contactar con sdo@imedea.uib-csic.es

Internal Cycle of Seminars IMEDEA - Daniel R. Tarry - «The Joy of Oceanography» 

Abstract

Join us for a captivating journey into the depths of oceanography as we share the highlights of an adventurous oceanographic cruise. From meticulous planning to unexpected events during the experiment, we'll unravel the excitement and challenges faced on the high seas. Our spotlight will be on the CALYPSO 2022 cruise, a thrilling exploration of the mesmerizing Balearic Sea.

Dive into the details as we explore the mission's primary goal: uncovering subduction regions that connect the sea surface with the depths below. The synergy of two ships and multiple observing platforms provided a comprehensive dataset on submesoscale motions.

Abstract

Understanding the extent of animal mortality, the where and when mortality occurs, is paramount to implement effective conservation actions and secure the persistence of animal populations. Unfortunately, so far our understanding of animal survival (which is the inverse of mortality) is very limited, even for well-studied species such as vultures. Project SURVIVALIST has the ambitious objective of filling this knowledge gap for three European vultures (Griffon, Cinereous and Bearded vulture). Based on a large collaborative network, SURVIVALIST collated a uniquely large dataset (including >1400 vulture individuals across the three species) of high-resolution vulture tracking data. These data are analysed using novel approaches to quantify survival in time across the species annual cycle (e.g. during the breeding and non-breeding season) and life-stages (juvenile, immature, adults; Objective 1). Survival variation for each species is then mapped across space by integrating survival modeling with space use from the tracking data, to identify hotspots of vulture mortality (Objective 2).

El Centro Balear de Biodiversidad es una iniciativa que pretende generar conocimiento acerca de la rica diversidad biológica y el excepcional entorno natural del archipiélago Balear. Esta información es crucial para establecer políticas de gestión y conservación en un contexto de cambio global y que permitan mantener los servicios ecosistémicos que la biodiversidad provee a la sociedad. Los objetivos del CBB son: 1) fortalecer el potencial y la capacidad de la comunidad científica de la región, generando conocimiento y estableciendo colaboraciones y sinergias; 2) dar apoyo científico-técnico a gestores gubernamentales y el sector privado, y 3) establecer colaboraciones estratégicas, servicios, asesoramiento y formación en cuestiones relacionadas con la biodiversidad. El CBB está compuesto por cuatro unidades que responden a sus objetivos científicos, formativos y de apoyo técnico a la comunidad científica interesada en la biodiversidad de las Islas Baleares, estos son: la Unidad de colecciones de historia natural, la Unidad de genómica, la unidad de gestión de datos y la unidad de formación y divulgación científica. El equipo humano lo componen un equipo multidisciplinar de investigadores y técnicos. En este seminario parte del equipo del CBB hablará de los objetivos, composición y estructura del centro, de los equipos y servicios que ofrece y de cómo establecer contacto con nosotros.

Abstract

Mangrove deforestation and land subsidence have led to significant challenges such as coastal floods and retreat in northern Java. To address these issues, a large-scale Building with Nature (BwN) solution is being implemented by re-establishing a mangrove forest that acts as a coastal defence. Large semi-permeable bamboo dams are being built to facilitate natural mangrove recruitment by accumulating sediments and creating a habitat for the trees. The ecosystem that grows on these bamboo artificial structures and its effect on the surrounding ecosystem has not yet been fully studied. Within this context, we set up a three-month field experiment in which we looked at the development of a macrofouling community on bamboo poles and mangrove Avicennia marina trees, and the effect of the BwN structure on the development of such communities. We observed that bamboo poles get colonized faster and support a different community than mangrove trunks. Mangrove trees were colonized mostly by Ostreidae whereas bamboo poles by Amphibalanus. Percentage coverage was consistently higher on bamboo poles. Additionally, we observed lower coverage in the location affected by the semi-permeable barrier compared to locations that were not, potentially due to the sediments trapped by the barrier which may impede larval settlement. Lastly, we discuss the idea that the structure and its ecosystem may have a nutrient enrichment effect, potentially influencing mangrove tree resilience to strong winds. Our findings contribute insights into the ecological functions and implications of these BwN structures in the marine environment, emphasizing the importance of considering their broader impacts on mangrove ecosystems. 

Abstract

Monitoring hydrodynamic and morphological features in coastal areas, as well as their evolution, is a key task to support coastal management, of upmost importance in the current context of sea-level rise. In-situ sampling is commonly used to monitor the nearshore; however, they are time-consuming, spatially-limited and scarce, especially during large wave or strong current events. In contrast, remote sensing measurements are able to estimate hydrodynamics and morphology at higher sampling rates and over broader coastal areas. However, some remote sensing technologies, like satellite, and video cameras, are not able to measure continuously, as opposed to shore-based X-band radars. Pulsed radar has been used for this purpose over 20 years now, but continuous wave radars, which are safer and cheaper than their pulsed counterpart, have been virtually unexplored for this purpose. In this talk I will present our current work on the adaptation of a continuous X-band radar system to measure ocean wave spectra, aiming to complement and improve video camera systems for nearshore monitoring.