rn malmqvist، نويسنده , , per-ola hoffsten، نويسنده , issue information : روزنامه با شماره پیاپی سال pages : from page : to page : abstract : we analysed the benthic macroinvertebrate species composition, taxonomic richness (as expected richness for individuals), total abundance and biomass at stream...
fish or fish waste to which no other matter has been added. it is a solid product from which most ofthe water is removed and some or all ofthe oil is removed. four or five tones of fish are needed to manufacture one tonne of dry fish meal. there are several ways of making fishmeal from raw fish; the...
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licorice world – brochure bgg roots in the licorice world bgg has been extracting licorice roots since our founding in . with over years of continuous experience, we have become well-known for production of mono ammonium glycyrrhizinate (mag). bgg's principles at bgg, everything starts from nature with...
j. kiger jan , " " a hawksbill sea turtle swimming off the coast of australia. mark kolbe/getty images advertisement back in , out of concern that many of america's native plants and animals were in danger of extinction , congress passed the endangered species act . the law enables regulators to designate...
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