A review of three species of Hesperonoe (Annelida: Polynoidae) in Asia,with descriptions of two new species and a new record of Hesperonoe hwanghaiensis from Korea

A taxonomic review of three Asian species of Hesperonoe (Annelida: Polynoidae) is presented. Hesperonoe hwanghaiensis Uschakov and Wu, 1959 Uschakov PV, Wu B. 1959. [The polychaete worms of the families Phyllodocidae and Aphroditidae (Polychaeta, errantia) from the Yellow Sea]. Arch Inst Oceanol Sinica. 1:1–40, pls. I–X. (In Chinese and Russian). [Google Scholar] (type locality: Qingdao, China) is redescribed based on five specimens collected from an intertidal site in the Korean coast of the Yellow Sea, as a new record of this species from Korea, which is the only known habitat outside the type locality. Hesperonoe coreensis sp. nov. is described based on nine specimens collected from two intertidal sites in the Korean coast of the Yellow Sea, including the same site as the habitat of H. hwanghaiensis. Hesperonoe japonensis sp. nov. is described by re-examination of many specimens collected from eight intertidal sites and a subtidal one in Japan, which was previously misidentified as H. hwanghaiensis. The three species are clearly distinguishable from one another by the species-specific morphology of the macrotubercles (or marked ridges) on the surface of elytra. All of the three species seemed to be commensal with the burrowing mud shrimp Upogebia major in intertidal flats, except for an additional probable host of another upogebid shrimp Austinogebia narutensis for H. japonensis sp. nov. in a subtidal habitat. The morphological characteristics and host species of the three Asian species are compared with all of the other five congeners known from the North American Pacific and Arctic Sea.

http://www.zoobank.org/urn:lsid:zoobank.org:pub:51CB5C5B-0838-48AC-A0BA-8E63AA7628CB     

Structure of the reproductive system and hectocotylus in males of lesser flying squid Todaropsis eblanae (Cephalopoda: Ommastrephidae)

This paper introduces new data on Todaropsis eblanae morphology, morphometry and functional aspects of the male reproductive system and hectocotylus. Spermatophores differ in specimens from the Atlantic Ocean (average length, 18.28 ± 1.45 mm, 15.63 ± 0.8% of mantle length; weight, 2.0–12.0 mg) and the Indian Ocean (average length, 24.8 ± 2.85 mm, 16.9 ± 2.1% of mantle length; weight, 35.0–39.6 mg) (t?=?3.14; p < 0.01 for absolute sizes and t?=?0.711; p > 001 for relative sizes). An additional important distinctive trait is the form of connection of the cement body with the ejaculatory tube. In recent years, T. eblanae has been regularly caught in the Barents Sea, meaning its range has extended to subarctic waters. The morphology and morphometry of the spermatophoric complex of organs did not vary in investigated parts of its range. Hectocotylus patterns and some important spermatophore traits distinguish Todaropsis from other Ommastrephidae.     

高效液相色谱反相分离测定海洋生物氨基酸

本文研究了高效液相色谱异硫氰酸苯柱前衍生反相分离测定海洋生物氨基酸.样品采用盐酸水解,异硫氰酸苯柱前衍生,反相分离,流动相为乙睛与水梯度。测定了七种海洋生物的氨基酸.色谱部分变异系数低于2％,氨基酸总量回收率大于98％.     

河北平原旱涝时北太平洋海温演变特征分析

本文对河北平原旱涝与北太平洋海温距平之间关系进行了研究,发现东太平洋赤道区和黑潮区海温异常分布对河北旱涝影响最为显著。基于统计分析结果,本文提出了北太平洋海温异常对河北平原旱涝影响的可能途径。     

湄洲湾海洋生物体内痕量金属含量的研究

用湿法消化和火焰原子吸收分光光度计测定了福建湄洲湾六种海洋生物体内Ｚｎ、Ｃｕ、Ｐｂ、Ｃｄ、Ｎｉ、Ｆｅ、Ｍｎ、Ｃｏ的含量，并计算了富集系数．湄洲湾海洋生物体内痕量金属含量与国内外某些海域的相近，远低于海洋生物评价标准和人体消费卫生标准．     

定常流中立管的多参数分叉

本文讨论立管在拉力、自重及定常流的影响下的非线性分叉问题.奇摄动法用于求解多个独立参数的摄动分叉解.获得了模拟非对称平衡的分叉曲面.文中同时研究了各分叉曲面的稳定性.     

隔水管非线性振动的线性化分析

本文在规则波浪与海流联合作用下对海洋钻井隔水管进行了动力分析,对非线性拖曳力采用改进的线性化方法,推导了有限元线性振动方程。求解这些方程几乎象静力方程一样,只需要少数几次迭代就可求得响应最大值。同时给出一些规则波浪与海流联合作用下的算例,并对由本文方法和由非线性时间域动力分析方法分别求得的两种结果进行了比较。比较表明,两种计算结果吻合。本文的线性化方法及把动力方程变换为静力方程的方法,能节约计算机时。隔水管是海洋工程中较典型的构件,该分析方法便于实际应用。