• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Russian journal of marine biology >Fish production in estuaries of Primorye
【24h】

Fish production in estuaries of Primorye

机译：滨海边疆区的鱼类生产

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Production of fish communities in 15 different-types estuaries was assessed based on the data collected as a result of 90 surveys (860 seine stations) conducted in Primorye in 2002-2015. The main contribution to production was made by semi-anadromous species (the so-iuy mullet Liza haematocheilus, Far Eastern redfins Tribolodon spp., and Japanese smelt Hypomesus nipponensis, etc.). In both external (EP (ext)) and internal (EP (int)) polyhaline estuaries (EP) a substantial portion of the production was provided by resident marine species (mainly by the saffron cod Eleginus gracilis, Far Eastern smooth flounder Liopsetta pinnifasciata, and tidepool gunnel Pholis nebulosa) and southern immigrants (flathead grey mullet Mugil cephalus, dotted gizzard shad Konosirus punctatus, Japanese halfbeak Hyporhamphus sajori, and Pacific needlefish Strongylura anastomella). In mesohaline (EM) and oligohaline (EO) estuaries, the proportion of marine residents and southern immigrants was reduced to a minimum, while that of freshwater species (bighead gudgeon Gobio macrocephalus, Prussian carp Carassius gibelio, minnow Phoxinus spp., Amur bitterling Rhodeus sericeus, spiny bitterlings Acanthorhodeus spp., etc.) substantially added to the production of semi-anadromous fish. The mean fish biomass for the vegetation season varied in the 143-1463 mgC/m(2) range; the mean annual production was 174-4267 mgC/m(2) and the mean P/B ratio was 0.2-3.2. In 2007, the high annual production in the Artemovka River estuary, 9356 mgC/m(2), was formed by the juvenile so-iuy mullet of the strong yearclass that hatched in 2006. The lowest mean production and P/B values were typical mainly for the water bodies with a salinity more often close to that of the barrier zones (5-8aEuro degrees for alpha-horohalinicum and 22-26aEuro degrees for beta-horohalinicum), i.e., for EM and EP (ext). This relationship is explained by the features of the osmotic regulation in fish of various origins and its ontogenetic variations. In particularly, the salinity in EM is more frequently close to the critical salinity (5-8aEuro degrees, alpha-horohalinicum); thus, the proportion of juveniles of most of the species in the catches decreases (as their resistance to salinity variations is lower). This results in higher mean values of the specific and absolute production of fish communities in EP (int) and EO as compared to those in EM. The conclusion was made that the estimates of fish production in the estuaries of Primorye are similar to those in the well-studied estuaries of the temperate, subtropical, and tropical zones. Moreover, they are comparable to the fish production estimates for mesotrophic and eutrophic lakes in northwestern Russia, substantially lower than those for large lowland rivers, and higher than those for small rivers. The fish production in seas, including the Japan/East Sea (0.20 gC/m(2)) and, particularly, Peter the Great Bay (0.28 gC/m(2)), is mostly lower than that in Primorye estuaries.
机译：根据2002年至2015年在滨海边疆区进行的90项调查（860个围网站）收集的数据，对15个不同类型河口的鱼类群落生产进行了评估。对生产的主要贡献是半厌氧物种（乌鱼，za鱼丽莎，金枪鱼，远东红鳍Tri，日本JapaneseHypomesus nipponensis等）。在外部（EP（ext））和内部（EP（int））的多卤河口（EP）中，很大一部分产量是由常驻海洋物种提供的（主要是藏红花鳕鱼Eleginus gracilis，远东平滑比目鱼Liopsetta pinnifasciata，以及潮汐河豚（Pholis nebulosa）和南部移民（扁平灰gray鱼Mugil cephalus，点缀着g的印度sha（Konosirus punctatus），日本半喙Hyporhamphus sajori和太平洋针鱼（Strongylura anastomella）。在中盐（EM）和低盐（EO）河口，海洋居民和南部移民的比例降低到最低限度，而淡水物种（Go头g头Gobio macrocephalus，普鲁士鲤鱼Carassius gibelio，minnow Phoxinus spp。，阿穆尔苦ter Rhodeus）锯齿鱼，多刺的苦瓜Acanthorhodeus spp。等）大大增加了半厌食鱼的生产。植被季节的平均鱼类生物量在143-1463 mgC / m（2）范围内变化；年平均产量为174-4267 mgC / m（2），平均P / B比为0.2-3.2。 2007年，阿尔特莫夫卡河河口的高年产量为9356 mgC / m（2），是由2006年孵化的强年幼so鱼形成的。典型的最低平均产量和P / B值是典型的主要用于盐度通常更接近屏障区的水体（α-水平卤水为5-8aEuro度，β-水平卤水为22-26aEuro度），即EM和EP（ext）。这种关系可以通过各种来源的鱼类的渗透调节及其特征来解释。特别是，EM中的盐度更经常接近临界盐度（5-8aEuro度，α-水平卤代）。因此，渔获物中大多数物种的幼鱼比例下降（因为它们对盐分变化的抵抗力较低）。与EM相比，EP（int）和EO中鱼类群落的特定和绝对产量的平均值更高。得出的结论是，滨海边疆区河口的鱼类产量估算值与温带，亚热带和热带地区经过精心研究的河口相似。而且，它们与俄罗斯西北部的中养和富养湖泊的鱼类产量估计值相当，大大低于大型低地河流的鱼类产量，而高于小型河流的鱼类产量。包括日本/东海（0.20 gC / m（2）），尤其是彼得大帝海湾（0.28 gC / m（2））在内的海洋中的鱼类产量大多低于滨海边疆区。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号