A series of laboratory experiments on the chemical composition of aerosol particles formed after photodissociation of CH212, a major volatile alkyl halide released from macroalgae, have been performed in a laboratory scale reaction chamber using on-line atmospheric pressure chemical ionization mass spectrometry (APCI/MS). Based on the mass spectrometric results and the molecular properties of i...

introduction a considerable percentage of the world’s population is living in the coastal areas. thus, there are many different kinds of problems in these regions. because of the large amount of the people in these areas, their ecosystems are confronted with huge and serious problems. there are different types of arrangements for preventing destruction of ecosystems around the seas. unified man...

The California killifish, Fundulus parvipinnis, is a marine species that lives in salt marshes, estuaries and wetlands along the California and Baja California coasts. In order to estimate levels of dispersal between different coastal habitats over its range, we have studied six populations using morphological and genetic markers. Lateral line scale and vertebrae counts showed significant diffe...

In order to elucidate the distribution of soil nematodes in coastal wetlands and the effect of different distance from the sea line on soil nematode communities, we investigated the community structure of soil nematodes in one wetland perpendicularly oriented from Bohai sea coastline. In June 2006, soil samples were collected from the Yellow River Delta wetlands, in Dongying city of Shandong Pr...

Knowledge of the refractivity index in the lower atmosphere is very important in the design, transmission and performance analysis of line-of-sight (LOS) terrestrial links. In oceanic environments, radio wave propagation is affected by the high variability with space and time of the meteorological parameters. Radiosonde data have been used in the analysis of the effect of climatic conditions in...

We investigated the current geographic distribution of species of Ameivula and Contomastix along the Brazilian coast. We also estimated population sizes and conservation status of species from both genera and recorded potential sources of habitat degradation. Fieldwork was carried out in 12 areas of restinga (coastal sandy plain) from northeastern (Rio Grande do Norte) to southern Brazil (Santa...

The analysis of IRS 1A satellite imagery has indicated the existence of two NE SW trending sub parallel faults along which the coast is undergoing land subsidence as revealed by the concavity in the shore line, preferential migration of the river systems and the drainage congestion, absence of beach ridges, occurrence of off shore shoal etc. The study has further indicated chains of tectonicall...

outbreaks causing mass mortalities have been observed in the golden grey mullet (liza auratus) population in southern coastal area of the caspian sea since 2002. the clinical signs include neurological abnormalities, such as erratic swimming behavior, spiral swimming, belly-up at rest and over inflation of the swim bladder. three hundred and twelve samples of moribund fish with sizes that range...

sensitive coastal areas are fragile ecosystems affected by geographic features and in the same time settlements were developed around these areas due to their ecological capability. coastal ecosystems due to their countless benefits are very important for protection. hence, this paper attempts to determine the sensitivity of coastal ecosystem to disturbances in hormozgan province. we reviewed 2...