Essays about: "benthic habitats"

Showing result 6 - 10 of 12 essays containing the words benthic habitats.

  1. 6. Spatial and temporal variations in stable isotope signatures (δ13C and δ15N) of the gammarids and the common carp in the southern coast of the Caspian Sea

    University essay from SLU/Dept. Of Aquatic Resources

    Author : Nazila Hajizadeh Koupayeh; [2020]
    Keywords : carbon stable isotope; Caspian sea; Cyprinus carpio; food webs; Gammarus aequicauda; nitrogen stable isotope; Pontogammarus maeoticus;

    Abstract : Despite the growing body of research on the use of stable isotope analysis in food web studies, spatial and temporal variations in stable isotope ratios of coastal communities are still poorly understood. The aim of my study is to explore how carbon and nitrogen stable isotopes of selected benthic communities vary spatially and temporally across the south of Caspian Sea. READ MORE

  3. 7. Importance of fish community structure, nutrients and browning for shallow lake ecosystem dynamics : A modelling perspective

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Ylva Karlberg; [2019]
    Keywords : biological modelling; bowning; food webs; trophic interactions; top-down and bottom-up control; nutrients; light; shallow lake; biologisk modellering; brunifiering; födovävar; trofiska interaktioner; näring; ljus; grund sjö;

    Abstract : In a changing climate, it is increasingly important to be able to model environmental effects on food webs, and to do that, one must have appropriate dynamic models. I present a shallow lake ecosystem model where producers, grazers, carnivores, piscivores, and detritivores are coupled through resource (light, nutrients and detritus) fluxes between the benthic and pelagic habitats and through carnivore life history events (ontogenetic habitat and diet shifts). READ MORE

  4. 8. Spring ice melt effect on benthic oxygen production

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Tommy Karlsson; [2015]
    Keywords : Benthic; Oxygen; Ice release; Ecology;

    Abstract : In biology, the winter season is less studied than other seasons partly due to technical and logistical difficulties. The Arctic region is undergoing rapid changes with shorter and warmer winters, shorter snow duration and considerable changes in snow and ice cover as a result. READ MORE

  5. 9. Benthic mapping of the Bluefields Bay fish sanctuary, Jamaica

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Karen Mcintyre; [2015]
    Keywords : remote sensing; image classification; GIS; acoustic survey; benthic habitat mapping; Earth and Environmental Sciences;

    Abstract : Small island states, such as those in the Caribbean, are dependent on the nearshore marine ecosystem complex and its resources; the goods and services provided by seagrass and coral reef for example, are particularly indispensable to the tourism and fishing industries. In recognition of their valuable contributions and in an effort to promote sustainable use of marine resources, some nearshore areas have been designated as fish sanctuaries, as well as marine parks and protected areas. READ MORE

  6. 10. Exploring the relationships between biodiversity and benthic habitat in the Primeiras and Segundas Protected Area, Mozambique

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Luisa Teixeira; [2015]
    Keywords : fish biodiversity; coral reef; benthic habitats; object-based image classification; very-high resolution remote sensing; geography; physical geography; Earth and Environmental Sciences;

    Abstract : A Reserva dos Arquip�lagos Primeiras e Segundas, localizada no norte de Mo�ambique, � a maior zona mar�tima protegida de �frica, estendendo-se por mais de 200 km de costa. Apesar da sua import�ncia para a economia local, informa��es sobre os seus ecossistemas marinhos, e particularmente habitats b�nticos, s�o escassas. READ MORE