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Distribution and abundance of postlarval and juvenile Pleuragramma antarcticum (Pisces, Nototheniidae) off Terra Nova Bay (Ross Sea, Antarctica)
The northern part of Terra Nova Bay seems to represent nursery ground of early stages of P. antarcticum and the presence of permanent polynya could provide favourable food conditions for development of the first stages of life. Expand
Interannual variability, growth, reproduction and feeding of Pelagia noctiluca (Cnidaria: Scyphozoa) in the Straits of Messina (Central Mediterranean Sea): Linkages with temperature and diet
It is proposed that more frequent P. noctiluca outbreaks stimulated by increasing sea surface temperature and shifts in their prey availability and composition would become, in the near future, a major cause of ecosystem shift. Expand
Ichthyoplankton abundance and distribution in the Ross Sea during 1987–1996
During Italian expeditions, ichthyoplankton was collected in the Ross Sea and Terra Nova Bay, by BIONESS and Hamburg Plankton Net and a total of 394,453 fish larvae representing 46 species, 27 genera and 9 families were collected. Expand
Spatio-temporal distribution and abundance of Euphausia crystallorophias in Terra Nova Bay (Ross Sea, Antarctica) during austral summer
The distribution patterns of E. crystallorophias in TNB seem to be strictly correlated both to hydrological features such as the presence of polynyas, pack-ice zone and certain temperatures values. Expand
Inhibition of population growth in the copepods Acartia clausi and Calanus helgolandicus during diatom blooms
The main factor responsible for reduced population recruitment rates of both species in winter was low hatching viability and that the bulk of annual recruitment in the North Adriatic Sea occurred in post-bloom conditions, since the mixed protistan community that succeeded the bloom was probably a better food source for copepod embryogenesis. Expand
Summer and spring trophic niche of larval and juvenile Pleuragramma antarcticum in the Western Ross Sea, Antarctica
The results suggest that the diet of younger Pleuragramma specimens shifted in prey composition from the first summer to the following spring, and the key role of the copepod, P. antarctica, in the food web of Terra Nova Bay is drawn attention. Expand
Species diversity, spatial distribution, and assemblages of zooplankton within the Strait of Magellan in austral summer
Plankton assemblages of the Strait of Magellan seem closely linked to the remote sub-Antarctic and adjacent ocean biota, but populations may have independent evolutionary lines and population dynamics. Expand
Potential use of ecotoxicological biomarkers in Serratella ignita (Ephemeroptera) larvae for Alcantara river (Sicily, Italy) water quality assessment
Benthic macroinvertebrates are important components of aquatic river ecosystems. These organisms are often used for biological monitoring since they are good indicators of the aquatic freshwaterExpand
The deleterious effect of diatoms on the biomass and growth of early stages of their copepod grazers
Results show that a SKE/SKE diet induced lower egg production and egg viability, as well as slower embryonic development than the control diet, which may have important consequences on prey–predator relationships and on the biomass flux through marine food chains. Expand
Spring diel vertical distribution of copepod abundances and diversity in the open Central Tyrrhenian Sea (Western Mediterranean)
Few other copepod species showed significant DVM (the epipelagic Scolecithricella dentata and the subsurface Corycaeus furcifer and Pleuromamma gracilis ), confirming previous information about the presence of few strong migrants in the Mediterranean Sea. Expand