FishLife cycle assessmentCarbon footprintEnvironmental impactNutrient offsettingEutrophicationOne of the major global environmental challenges is the overuse of nutrients and related eutrophication problems. Specifically in Finland, the roach fish population is rapidly increasing in eutrophic water systems. ...
内容提示: Population Modeling of the Fish Species Roach (Rutilusrutilus) to Investigate How Latitudinal Variations in LifeHistory Traits Affect the Sensitivity to Anthropogenic StressNiklas HansonReceived: 13 September 2010 /Accepted: 14 February 2011 /Published online: 8 March 2011# Springer Science+Bus...
It is usual for the parasite index (PI) of Ligula -infected fish to be high and to increase throughout their first few years of life. At Slapton, however, a lack of multiple infections has prevented high PIs from occurring, and in recent years the growth rate of the roach has been so...
The survival of the roach was very poor, and the spawning population therefore consisted largely of 2-and some 3-year-old fish. Consequently, the size of the spawning stock was small and dependent on the strengths of the year classes that it contained. Recruitment to many year classes was ...
Fish are more sensitive to introduced disturbances from synthetic endocrine disrupting compounds during early life phases compared with mature stages. 17伪-Ethinylestradiol (EE2), which is the active compound in human oral contraceptives and hormone replacement therapies, is today ever present in the ...
Fish occurring in the outlets of water basins reduce the abundance of zooplankton. The study was performed at the outlet sections of the lake and waste stabilization pond of a sewage treatment plant. The aim of the study was to determine which zooplankto
2. Fish host age, habitat use and parasite occurrence and abundance were determined during a 1 year cycle using monthly gill-net catches. Multivariate analysis [generalized linear models (GLIM)], revealed significant relationships ( P < 0.05) between roach age, its spatial occupancy and parasite ...