The carp, Cyprinus carpio, was found to have eight pairs of muscles inserting on the pharyngeal bones. These were the levator arcus branchialis V, retractor 0 s pharyngeus superioris, retractor 0s pharyngeus inferioris, cleithropharyngeus superficialis, cleithropharyngeus profundus, coracobranchialis posterior, transversus ventralis V and subarcualis rectus communis. Complete morphoIogical desc...

Population structure and growth of Mossul bleak, Alburnus mossulensis, a native species of cyprinids in Bibi-Sayyedan River of Semirom, Isfahan, were investigated by monthly sampling during December 2010 to December 2011. For this purpose, 543 speciments (353 females, 159 males and 31 immature) were caught using seine net (5 mm mesh size) and a cast net. Age groups of males and females were 0+ ...

Rapid water level decreases due to hydropeaking are known negatively affect riverine biota, mainly the stranding of organisms in river bank area that becomes regularly dewatered. Even though studies last decades have focused on salmonid fish, also cyprinids may be affected. However, limited knowledge is available this fish family. Therefore, we conducted mesocosm experiments under semi-natural ...

This study provides fundamental information on some key aspects of the reproductive traits of qanati tailor fish, Alburnoides qanati, an Iranian endemic, poorly studied cyprinid fish species. Sampling was performed on a monthly basis during one year (from March 2011 through February 2012) from a tributary of endorheic Kor River Basin, Southern Iran. The results of data analyzing showed that the...

In spite of overall improvements in air and water quality, biological stress from low pH high concentrations inorganic aluminum continue to impact fish habitat northeastern North America, with independent interactive effects on individuals, populations communities. Integrative indicators can therefore be useful monitoring both recovery across multiple scales. Using coupled chemistry (pH, conduc...

• A statistical approach to adjust for variation in ambient environmental conditions coastal fish indicators is proposed. Adjusting condition reduce uncertainty ecological focus. The had however low impact on the status assessments each area. generic monitoring Baltic Sea and can be applied other areas. application of indictors assessing ecosystems play an important role effective management. H...