the main purpose of the present study was to investigate effective factors of the market development of aquatics and products processed from them. the present research was applied research. also, it was quantity research and in terms of the method of collecting data was a survey research. the statistical population of this study consisted of experts of agricultural jihad organization, experts o...

As the earth faces a warming climate, the rock record reminds us that comparable climatic scenarios have occurred before. In the Late Cretaceous, Arctic marine organisms were not subject to frigid temperatures but still contended with seasonal extremes in photoperiod. Here, we describe an unusual fossil assemblage from Devon Island, Arctic Canada, that offers a snapshot of a ca 75 Myr ago marin...

Most organisms have complex life cycles, and in marine taxa, larval life-history stages tend to be more sensitive to environmental stress than adult (reproductive) life-history stages. While there are several models of stage-specific adaptation across the life history, the extent to which differential sensitivity to environmental stress (defined here as reductions in absolute fitness across the...

Newman R.D., Showler A.J.1, Harvey M.C.2 & Showler D.A.3 112 Wedgwood Drive, Hughenden Valley, High Wycombe, Buckinghamshire HP14 4PA, UK; 2Buckinghamshire and Milton Keynes Environmental Records Centre, Museum Resource Centre, Tring Road, Halton, Aylesbury, HP22 5PN, UK (Email [email protected] ); 3CEEC, School of Biological Sciences, University of East Anglia, Norwich, NR4 7TJ, UK (Emai...

The degree to which population fluctuations arise from variable adult survival relative to variable recruitment has been debated widely for marine organisms. Disentangling these effects remains challenging because data generally are not sufficient to evaluate if and how adult survival rates are regulated by stochasticity and/or population density. Using unique time series for a largely unexploi...

marine environment of the caspian sea, due to extensive human exploitation and discharge of large magnitudes of urban, industrial and agricultural waste, is under extensive pressure. nutrients such as phosphate and nitrate, and other human wastes are introduced into the caspian sea by river inflows and by direct waste dumping threatening marine life and eco system of the sea. high concentration...

the present study was aimed to assess the influence of brown marine algae and vitamin e (ve) (160 ppm α-tocopheryl acetate) on stability of chicken meat enriched with fish oil. in this study, 360 d-old broilers (arbor acres plus) were randomly assigned to 6 treatment groups with 4 replicates of 15 birds in each. experimental groups consisted of corn-soybean basal diet (c), corn-soybean basal di...

l-asparaginase is a candidate enzyme for anti-neoplastic agent againstacute lymphoblasticleukemia and also extensively use in the food industry for prevention of acrylamide formation. l-asparaginase is widely distributed among microorganisms. in this study, marine bacteria were isolated from persian gulf and screened for l-asparaginase activity. production of l-asparaginase was carried out by u...