نتایج جستجو برای: cockle shells
تعداد نتایج: 15024 فیلتر نتایج به سال:
Growth, mortality, exploitation rate, and recruitment of Anadara granosa cockle in Rangsang Barat coastal waters were studied from July to October 2019. The objective this research was study growth. mortality. rate A cockle. Sampling done monthly at three main stations. collected plot 1 x m2 on quadrat transect. result showed that the asymptotic length (L∞) P. acutidens 30.45 mm. annual growth ...
December 2006 | Volume 4 | Issue 12 | e418 Most governments around the world set conservation policy based on the assumption that resource exploitation and species protection can co-exist in the same place. These policies have led to Orwellian “marine protected areas” that host commercial fi shing operations, leading one to wonder who’s protecting whom. A new study reveals the danger of this ap...
December 2006 | Volume 4 | Issue 12 | e418 Most governments around the world set conservation policy based on the assumption that resource exploitation and species protection can co-exist in the same place. These policies have led to Orwellian “marine protected areas” that host commercial fi shing operations, leading one to wonder who’s protecting whom. A new study reveals the danger of this ap...
December 2006 | Volume 4 | Issue 12 | e418 Most governments around the world set conservation policy based on the assumption that resource exploitation and species protection can co-exist in the same place. These policies have led to Orwellian “marine protected areas” that host commercial fi shing operations, leading one to wonder who’s protecting whom. A new study reveals the danger of this ap...
background: marine pollution is a global environmental problem that its monitoring by ideal biomonitors is of great importance. marine organisms, especially mussels, have the ability to accumulate metals from the environment they can be considered as a biomonitoring agent. methods: in this study, concentrations of heavy metals were measured in saccostrea cucullata collected from seven sites on ...
this research was conducted to evaluate the possibility using peanut shells compost as a suitable medium in cultivating ornamental plants. effect of peanut shells composts on the growth of viola tricolor and marigold was investigated during seven months. peat + perlite (with a ratio of 2:1) used as control treatment and peat replaced by 25, 50, 75 and 100 % v/v of peanut shells compost. plant g...
December 2006 | Volume 4 | Issue 12 | e418 Most governments around the world set conservation policy based on the assumption that resource exploitation and species protection can co-exist in the same place. These policies have led to Orwellian “marine protected areas” that host commercial fi shing operations, leading one to wonder who’s protecting whom. A new study reveals the danger of this ap...
December 2006 | Volume 4 | Issue 12 | e418 Most governments around the world set conservation policy based on the assumption that resource exploitation and species protection can co-exist in the same place. These policies have led to Orwellian “marine protected areas” that host commercial fi shing operations, leading one to wonder who’s protecting whom. A new study reveals the danger of this ap...
December 2006 | Volume 4 | Issue 12 | e418 Most governments around the world set conservation policy based on the assumption that resource exploitation and species protection can co-exist in the same place. These policies have led to Orwellian “marine protected areas” that host commercial fi shing operations, leading one to wonder who’s protecting whom. A new study reveals the danger of this ap...
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