Seasonal variations of dissolved free, total and particulate enantiomeric amino acids were investigated in eutrophic (middle–inner) to oligotrophic (outer) parts of the İzmir Bay. Mean dissolved free, dissolved combined, total dissolved hydrolysable and particulate hydrolysable amino acid levels in middle–inner parts were higher than that of outer part, and found as 232.5, 757.3, 989.8 and 20.9 nM, respectively. Among all amino acid forms, highest mol percentages were found for glycine and L-glutamate. Total D-enantiomers in all forms were only present at trace amounts ($\le$10%). While dissolved organic carbon and nitrogen enriched with freshly produced dissolved amino acids especially in spring, degradation processes were dominant in summer and autumn. According to degradation index of DFAA, seasonal production and degradation were balanced in eutrophic middle–inner bays. On the other hand, seasonally constant fresh production was observed in oligotrophic outer bay. Seasonal and spatial variations of amino acids and organic matter pools in eutrophic and oligotrophic waters of İzmir Bay were under the influences of autochthonous and allochthonous processes.

研究了伊兹密尔湾富营养化（中内）到贫营养（外）部分的游离，总和颗粒对映体氨基酸的季节性变化。中内部分的平均游离游离，可溶结合，总可水解和颗粒可水解氨基酸水平高于外部，分别为232.5、757.3、989.8和20.9 nM。在所有氨基酸形式中，发现甘氨酸和L-谷氨酸的最高摩尔百分数。所有形式的总D-对映体仅以痕量存在（$\le$10％）。虽然溶解的有机碳和氮富含新鲜产生的溶解的氨基酸，尤其是在春季，但降解过程在夏季和秋季占主导地位。根据DFAA的降解指数，富营养化中内湾的季节性生产和降解是平衡的。另一方面，在贫营养型外湾中观察到季节性稳定的新鲜生产。伊兹密尔湾富营养化和贫营养化水中氨基酸和有机质库的季节性和空间变化都受到自发过程和异源过程的影响。