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|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
Variability of the Characteristics of the First Scale Annulus and Length of Year-Old Fish in the Bering Sea Walleye Pollock Ther
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By these parameters, walleye pollock from the western Bering Sea significantly differs statistically from walleye pollock of the eastern Bering Sea.
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Interannual variability of the three parameters was found for walleye pollock from the Navarinskii region.
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The molecular weights of Pacific herring, chum salmon, pond smelt, glassfish, and Alaska pollock egg protease inhibitors were 120, 89, 84.5, 17, and l6.8kDa, respectively.
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The specific inhibitory activity of glassfish egg protease inhibitor was the highest followed by those of Pacific herring and Alaska pollock in order.
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| | During a survey of Bering Sea pollock resources from June to August,1993,a large concentration of age zero pollock was discovered in the Aleutian Basin by using echointegration/midwater trawl survey method. The study result indicates that :1)The juvenilewere mainly distributed in the northeast part of the Aleutia n Basin extending fromnorihwest to southeast,and the densest distribution area was observed between the easterncontinental slope and the Bering High Seas;2)The juveniles mainly inhabite... | | 1993年夏季白令海狭鳕资源调查期间,作者等应用声学/拖网评估调查方法,首次发现阿留申海盆区有大量当年生狭鳕幼鱼分布。研究结果表明:(1)当年生幼鱼主要分布在海盆区东北部,密集区位于东白令海陆架斜坡与公海区之间,呈西北东南走向;(2)鱼群主要栖息于中上层80—120米处,有明显的昼夜垂直移动现象;(3)7月份海盆区东北部幼鱼鱼体长度为29—47毫米,而南部波哥斯洛夫岛附近的鱼体长度仅为11—17毫米,系两个不同产卵期鱼群的子代;(4)幼鱼主要栖息层的水温为3—5℃,盐度为32.9—33.1,其分布与陆架斜坡地理环境和饵料生物关系较密切。 | | 文摘来源 | | An acoustic/midwater trawl survey of the resource of walleye pollockTheragra chalcogramma (Pallas) in the Aleutian Basin and the high seas of the Sea ofOkhotsk was carried out by the R/V "Bel Don)" during the period of June 10 - August 24,1993 with a coverage of 760 × 103 km2. The survey results indicate that: (1) during summer,the water from surface to 25 m depth vertically mixed well in the Aleutian Basin with thetemperature of 5. 4- 9. 6℃, salinity of 32. 4-33. 2, dissolved oxygen of 9. 7- 10. 6 mg... | | 1993年夏季使用“北斗”号渔业调查船对北太平洋的狭鳕进行资源声学评估和渔场环境调查,调查覆盖面积达76万平方公里。调查结果表明:夏季白令海阿留申海盆区50—200m为冷水团占据,水温为1.3—4.9C。狭鳕成鱼主要分布于海盆区东南部及公海区,主要栖息在175-225m层。在公海区东北部与陆架之间,首次发现大量狭鳕当年生幼鱼,主要栖息在80—100m层。成鱼和幼鱼均有明显昼夜垂直移动。海盆区狭鳕平均叉长52.6cm,平均体重1095g,个体较往年偏大,公海区狭鳕资源评估结果为5.2万吨,预计1995年公海狭鳍资源将逐渐恢复。夏季鄂霍次克海公海区50—150m为较强冷水团占据,水温为-1.2-0.2℃。狭鳕密集分布区在北纬55°以北的500m等深线以浅海区,主要分布水层在冷水团下方的150—300m处。该海区狭鳕平均叉长38.3cm,平均体重358.7g,优势年龄组成为5—6龄,资源状况良好。 | | 文摘来源 | | A fish protein hydrolysate was prepared from fish offal, the processing waste of pollock (Theragra chalcogramma), by hydrolysis with proteolytic enzymes. The offal was first hydrolyzed with 240IU/ml AS 1.398 neutral proteinase at 50℃, pH 7.0, for 2h, and then, in order to eliminate the bitter taste, the hydrolysate was further hydrolyzed with 1.5% (w/w) IFF12342 (Proteinase activity was 2000IU/g)at 50℃, pH6.0 for 6h. The end product gained by vacuum concentration and spray dry from the hydrolysate was... | | 用蛋白酶水解法从鳕鱼加工废弃物──鳕鱼碎肉中提取水解蛋白。鳕鱼碎肉经枯草杆菌AS1.398中性蛋白酶240IU/ml,pH7.0,50℃下水解2h;再经黄曲霉IFFI2342(蛋白酶活力2000IU/g)1.5%(W/v),50℃,pH6.0下水解6h以脱苦味。水解液经真空浓缩后喷雾干燥得水解蛋白粉。该制品易溶于水,无苦味,有海鲜味。其氨基酸组成合理,是优良的蛋白质制品。 | | 文摘来源 | |   | | << 更多相关文摘 |
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