نتایج جستجو برای: aquarium
تعداد نتایج: 1551 فیلتر نتایج به سال:
Nitrifying biofilters are used in aquaria and aquaculture systems to prevent accumulation of ammonia by promoting rapid conversion to nitrate via nitrite. Ammonia-oxidizing archaea (AOA), as opposed to ammonia-oxidizing bacteria (AOB), were recently identified as the dominant ammonia oxidizers in most freshwater aquaria. This study investigated biofilms from fixed-bed aquarium biofilters to ass...
allometric growth pattern and body shape changes of the green terror (andinoacara rivulatus)(cichlidae) were studied using landmark-based geometric morphometric (gm) and traditional methods, from hatching up to 1266 hours post hatching (hph) under culture conditions. the left side of specimens were photographed using digital camera and morphometric characters, including total length, head lengt...
OBJECTIVE To investigate the source and risk factors associated with Australia's largest outbreak of Legionnaires' disease. DESIGN AND SETTING Epidemiological and environmental investigation of cases of Legionnaires' disease associated with visits to the Melbourne Aquarium; two case-control studies to confirm the outbreak source and to investigate risk factors for infection, respectively. P...
A network of nine marine protected areas was established on the west coast of the island of Hawai’i in 2000 in response to declines of reef fishes taken by aquarium collectors. In 1999, we established 23 study sites in MPA areas, areas open to fishing, and control areas (existing protected areas) to collect data both prior to and after the closure of the MPA network in 2000. To date we have con...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید