The northernmost record of Bassanago albescens and comments on the occurrence of Rhynchoconger guppyi (Teleostei: Anguilliformes: Congridae) along the Brazilian coast

The northernmost occurrence of Bassanago albescens in the western Atlantic Ocean (off the coast of Rio de Janeiro, Brazil) is presented and compared with the available data on this species. Specimens formerly identified as Rhynchoconger guppyi from off the southern Brazilian coast are regarded as B. albescens.     

中国尺蛾科新纪录属——离顶尺蛾属及其一新纪录种记述（鳞翅目：尺蛾科：姬尺蛾亚科）

首次报道姬尺蛾亚科离顶尺蛾属Apostegania Prout,1932和离顶尺蛾A.crina(Swinhoe,1892)在中国分布,给出了形态描述和特征图。     

长白山区黏菌物种多样性编目

系统记载了长白山地区黏菌 2 10种 ,隶属于 32属 10科 6目 3亚纲。其中 ,环丝团网菌 (Arcyriaannulif eraTorrend)、大团网菌 [A .major (G .Lister)B .Ing]、暗红垂网菌 (A .oerstedtiiRost .)、球囊白柄菌 [Diacheabul billosa (Berk .&Br.)A .Lister]、高山双皮菌 (DidermaalpinumMeylan)、白煤绒菌 [Fuligocinerea (Schw .)Mor gan]、大粉瘤菌 [Lycogalaflavofuscum (Ehrenb .)Rost .]、金黄绒泡菌 (PhysarumcitrinumSchum .)、刺发网菌 (Stemo nitisflavogenitaJahn)、半网发网菌 (S .hyperoptaMeylan)和小孢发网菌 (S .microspermaB .Ing)等 11个种为吉林省新记录种。给出了全部物种的市县级地理分布信息。     

中国长喙天蛾属一新种及一新纪录种记述（鳞翅目：天蛾科）

记述产自海南、广西的长喙天蛾属Macroglossum Scopoli,1777 1新种:朱氏长喙天蛾Macroglossum chui Pan Han sp.nov.,以及1中国新纪录种:斜带长喙天蛾Macroglossum clemensi Cadiou,1998,提供了种的鉴别特征、成虫和外生殖器图。     

中国窄吉丁属二新种及一新记录种记述(鞘翅目:吉丁科)

记述脊窄吉丁种团Agrilus japanocarinatus species-group 2新种:长脊窄吉丁Agrilus longicarinus sp.nov.(广东)和林氏窄吉丁 A.lini sp.nov.(海南).首次记录了阿氏窄吉丁 A.arsenevi Jendek,2009.编制了该种团的中国种检索表...     

中国林蛙新亚种研究

本文根据采集于陕西户县、甘肃榆中,四川康定和吉林白河产中国林蛙Rana chensinensis 371号标本,对其形态、染色体组型、C带、银带及血清LDH同工酶电泳酶带进行了比较研究,发现榆中、康定和白河的标本与中国林蛙模式产地户县的标本两两之间均存在显著差异,因此确定榆中、康定和白河产中国林蛙为三个新亚种。     

Composition and distribution of zooplankton across an upwelling front on the northern Portuguese coast during summer

Zooplankton was sampled during the summer of 1995 from a grid of 34 shelf stations located off the Ria de Aveiro (northwestern Portugal), which were arranged into cross-shore transects extending either to the shelf break or to the 50 m isobath. At each station, a bongo net was hauled obliquely from close to the bottom or a maximum depth of 50 m to the surface. STD casts were made also at each station and wind data were obtained from a land station. Analysis of salinity and temperature data detected the presence of strong thermohaline stratification and a lens of reduced salinity water at the surface. A well-defined front, located at a depth of 10 to 35 m, separated cold water close to shore from warmer offshore water. Isopycnals between the front and the shore were bent towards the surface. The structure of the thermohaline features was consistent with the upwelling-favourable winds measured during the sampling period. A classification and a multivariate analysis of variance of the more abundant species showed the presence of two distinct assemblages that were separated by the front, indicating that these formations are important features structuring the zooplanktonic community of upwelling areas. The data further indicate that the zooplankton was composed of Palaeartic Atlantic and Mediterranean neritic species, and that oceanic species were absent from the samples. The absence of oceanic species is interpreted as resulting from the offshore displacement of the slope poleward flow and of the Portugal Current that takes place during the summer, as a response to upwelling-favourable winds.     

尖叶青冈在中国香港及广东的新分布记录

基于对中国主要标本馆的青冈亚属标本的全面整理,该研究证实尖叶青冈(Quercus acuta Thunberg)在中国香港及广东省有分布,并且本文对尖叶青冈及其近缘种鉴别特征进行了讨论和界定。     

Resource partitioning in sympatric delphinids: space use and habitat preferences of Australian snubfin and Indo-Pacific humpback dolphins

1. Many species of delphinids co-occur in space and time. However, little is known of their ecological interactions and the underlying mechanisms that mediate their coexistence. 2. Snubfin Orcaella heinsohni, and Indo-Pacific humpback dolphins Sousa chinensis, live in sympatry throughout most of their range in Australian waters. I conducted boat-based surveys in Cleveland Bay, north-east Queensland, to collect data on the space and habitat use of both species. Using Geographic Information Systems, kernel methods and Euclidean distances I investigated interspecific differences in their space use patterns, behaviour and habitat preferences. 3. Core areas of use (50% kernel range) for both species were located close to river mouths and modified habitat such as dredged channels and breakwaters close to the Port of Townsville. Foraging and travelling activities were the dominant behavioural activities of snubfin and humpback dolphins within and outside their core areas. 4. Their representative ranges (95% kernel range) overlapped considerably, with shared areas showing strong concordance in the space use by both species. Nevertheless, snubfin dolphins preferred slightly shallower (1-2 m) waters than humpback dolphins (2-5 m). Additionally, shallow areas with seagrass ranked high in the habitat preferences of snubfin dolphins, whereas humpback dolphins favoured dredged channels. 5. Slight differences in habitat preferences appear to be one of the principal factors maintaining the coexistence of snubfin and humpback dolphins. I suggest diet partitioning and interspecific aggression as the major forces determining habitat selection in these sympatric species.