We assessed the effects of hypoxia on macrobenthic communities in the York and Rappahannock Rivers, Chesapeake Bay, in box-core samples before and after hypoxic episodes in 2003 and 2004. Hypoxia occurred in both years and was associated with a decrease in biomass and a shift in community structure toward opportunistic species in both rivers. Long-term data indicate that the frequency of hypoxi...

An attack of Lauritrioza alacris (Flor, 1861) (Hemiptera: Triozidae) was recorded in a commercial plantation bay laurel (Laurus nobilis L., Lauraceae) the municipality Dois Lajeados, Rio Grande do Sul state (RS), Brazil. The immature triozids induced galls on attacked leaves consisting thickened margins that became folded downward, forming an elongated tube-shaped roll sheltered immatures. All ...

From mid-May to August 2011, extreme runoff in the Columbia River ranged from 14,000 to over 17,000 m(3)/s, more than two standard deviations above the mean for this period. The extreme runoff was the direct result of both melting of anomalously high snowpack and rainfall associated with the 2010-2011 La Niña. The effects of this increased freshwater discharge were observed off Newport, Oregon,...

The vertical distribution and abundance of conspicuous gastropod and bivalve species were studied at five rocky beaches in Cuastecomate Bay, Jalisco. Sampling was done from September, 1993 through March, 1994 with 0.75 m2 quadrants placed along replicate transect lines (10 m long) in the supralittoral and mesolittoral (upper, middle and lower intertidal) zones. A total of 6,643 mollusks were co...

This investigation was conducted in order to identify the heavy minerals of the beach sands of Carmel Bay, and to analyze the distribution of these minerals, Carmel Bay offers the opportunity to study heavy mineral assemblages in a small isolated bay, internally divided by a submarine canyon, containing smaller pocket beaches influenced by several geological formations and two fresh water strea...

The present study was undertaken to verify ancient data in the literature on ovipositional preference o f the cuttlefish Sepia officinalis for the terrestrial plant Pistacia lentiscus (mastic tree). Adult specimens o f Sepia were placed in basins together with aerial parts not only of P. lentiscus, but also o f Artemisia arborescens, Centaurea alba var. deusta, Quercus ilex and Laurus nobilis. ...

Three evergreen (Laurus nobilis, Viburnum tinus and Thuja plicata) and two autumnal abscission deciduous trees (Cydonia oblonga and Prunus domestica) have been investigated for the presence (zymogram and immunodetection) and functionality (post-illumination chlorophyll fluorescence) of the thylakoid Ndh complex. The presence of encoding ndh genes has also been investigated in T. plicata. Wester...

Studies on the characterization and evaluation of plant genetic resources should be carried out in order to identify conserve laurel (Laurus nobilis L.) gene from medicinal aromatic plants commercial importance Turkey. This study was with aim determining photosynthetic characteristics containerized seedlings grown seeds collected Antalya, Muğla İzmir regions. Photosynthetic properties (net rate...