Browsing by Author "Marques, Daniel"
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- Berlengas Biosphere Reserve : plan for the assessment of ecosystem services and functionsPublication . Leandro, Sérgio; Marques, Daniel; Mouga, Teresa; Coelho, Helena; Rodrigues, Sandra; Maranhão, PauloThe project Berlengas Biosphere Reserve Plan for the Assessment of Ecosystem Services and Functions arises from the need to identify and assess ecosystem services, promoting sustainable uses of the services in the Reserve. The high degradation rate currently observed in the natural systems, thus reducing the level and quality of ecosystem services, is reflected in a negative effect on environmental quality, human wellbeing and in some economic activities. Thus, it becomes inevitable to promote the need to convey the importance of these services to society. It is also essential to contribute to the development of innovative and environmentally sustainable practices which will maintain the functioning of the local ecosystem and the sustainability of the services. Thus, the main goals of this project are i) to identify and analyse the impacts and dependencies on ecosystem services in the Reserve; ii) to analyse the trends of the priority services, iii) to identify the risks and opportunities associated with these services; iv) to evaluate their value and ultimately iv) to disseminate the results improving conservation and management. Based on the results to be obtained through the evaluation and maintenance of these services it is expected an improvement on the environment in the region and the development of efficient mechanisms for the management of resources. Started in February 2014, over the past 3 months much research has already been conducted, with emphasis for the identification of services and opportunities in the Reserve. Ecosystem services in Berlengas can range from simply providing essential goods or support (e.g. fish) to cultural services (e.g. field trips, diving). Work is also being done to develop, define and optimize the methods to assess ecosystems services trends and values.
- Description of the complete larval development of Lysmata amboinensis (De Man) (Decapoda: Lysmatidae) reared under laboratory conditionsPublication . Sousa, Lígia F. de; Marques, Daniel; Leandro, Sérgio; Santos, Antonina dosComplete larval morphological descriptions are currently only known for three of the 48 species of genus Lysmata. The present study describes and illustrates the larval development of Lysmata amboinensis (De Man) reared under laboratory conditions. Lysmata amboinensis larval development is composed by a total of ten zoea and a decapodite stage. The first zoeal stage larvae presents sessile eyes, a carapace with a pterigostomial spine and anterio-ventral marginal denticles, a long, slender, and pointed rostrum, an antennal exopod terminally segmented, a pleon with five somites, the fifth one bearing a pair of dorso-lateral spines on the posterior margin, and a triangular shaped telson with 7+7 posterior processes. The decapodite resembles a smaller adult and has extremely long antennas (more than twice the total length of the decapodite), the first two pair of pereiopods with chela, first four pairs of pereiopods with reduced and unsegmented exopods, and fully developed pleopods. The morphological features of L. amboinensis are compared with those currently available for the larval stage of the genus Lysmata.