Juniper Publishers-Oceanography Open Access Journal

                      Juniper Publishers -  Journal of Oceanography Abstract In a first instance, we approached a view of the Brazilian fishery management underwent political decisions that have modified its organizational administrative structure along last years, for example, no longer consider seasonal fishing closures subsidies to small scale fishers, in part given the current political and economic crisis creating the need to cut down on costs; a decision, that is likely to create further costs, nullifying the savings hoped for. Secondly, we provide suggestions on ways to maintain these subsidies, as to improve the fishery management processes, urging that considering fisheries participants in the political decisions will become essential for sustainable small- scale fisheries. Keywords:  Small-scale fisheries; Planned disorganization; Poorly-adapted management; Fishers benefits; Sustainable fishing; Brazil ...

Juniper Publishers- Open access journal of Oceanography and Fisheries Structural and Thermodynamic Properties of Tropomyosins from the Ordinary and Hybrid Tilapia Tilapia is a very common aquaculture species in Taiwan and both the so-called freshwater tilapia (Oreochromis niloticus) and seawater tilapia (O. mossambica) are available. In order to characterize muscle tropomyosin from these tilapia and hybrid ones (O. mossambica × O.niloticus ), the biochemical properties of tropomyosin among these tilapia species were analysed. The nucleotide sequences of tropomyosin genes were determined by cDNA cloning, and the amino acid sequences were deduced. Fast skeletal muscle tropomyosins were isolated by the combination of isoelectric point precipitation and salting out with ammonium sulfate. The thermodynamic properties of the purified tropomyosins were examined by differential scanning calorimetry (DSC) and circular dichroism (CD) spectrometry. The results showed that those tropomy...