Izvorni znanstveni članak

Taxonomic composition and seasonal distribution of microphytoplankton in Mali Ston Bay (eastern Adriatic)

Damir Viličić ; University of Zagreb, Faculty of Science, Department of Botany, Zagreb, Croatia
Nenad Jasprica ; Institute of Oceanography and Fisheries, Laboratory of Plankton Ecology, Dubrovnik, Croatia
Marina Carić ; Institute of Oceanography and Fisheries, Laboratory of Plankton Ecology, Dubrovnik, Croatia
Zrinka Burić ; University of Zagreb, Faculty of Science, Department of Botany, Zagreb, Croatia

Sažetak

Mali Ston Bay is an elongated, sparsely inhabited neritic environment and traditionally important shellfish-farming region in the south-eastern part of the Adriatic coast. The hydrography of the bay is influenced by the specific karstic hydrology (underwater springs in the inner part of the bay), and the Neretva River discharging into the outer part of the bay. Due to the estuarine circulation in winter, a stratified water column is formed, the surface layer being mostly formed above, and the subsurface layer below 6 m in depth. This vertical structure was detected on the basis of temperature, salinity, and phytoplankton and non-living suspended particle distribution. Phytoplankton accumulated most frequently in the surface layer in more stable conditions, and below the halocline during greater input of freshwater. Due to the relatively low phytoplankton cell density, the cell density of species indicating nutrient enrichment, as well as high species diversity and transparency, Mali Ston Bay may be indirectly classified as moderately eutrophic ecosystem, and recommended for the further development of shellfish farming activities.

Ključne riječi

phytoplankton; halocline; stratification; cell density; chlorophyll; thermohaline conditions; suspended particles; Neretva river

Hrčak ID:

160511

URI

https://hrcak.srce.hr/160511

Datum izdavanja:

31.12.1998.

Posjeta: 1.172 *