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2008040228现 生 ( 染 色 的 ) 底 栖 有 孔 虫 对 瑞 典 西 海 岸Gullmar 海 湾 最 深 部 分 水 体 原 始 生 产 力 和 水文 状 况 的 的 响 应 以 及 和 Hoglund(1927) 材料 的 对 比 研 究 = Living (stained) benthic foraminiferalresponse to primary production andhydrography in the deepest part of the gullmarfjord, Swedish west coast, with comparisons toHoglund's 1927 material. ( 英 文 ). Gustafsson M;Nordberg K. Journal of Foraminiferal Research,2001, 31(1): 2-11 1 图 版 .Living (stained) benthic foraminifera werestudied in the deepest part (116 m) of the classicalmarine study area, the Gullmar Fjord on theSwedish west coast. This is a silled fjord with astrongly stratified water column where stagnantconditions temporarily develop in the deeperparts. The aim of this study is to determine howthe living foraminiferal assemblage developswith seasonal variations in bottom water hydrographyand primary production in the surfacewater. From August 1993 to December 1994,monthly hydrographic and oxygen measurementswere made. Parallel undisturbed sedimentcores were taken using a Multiple-corer. Foraminiferafrom the >63 µm fraction werestained with Rose Bengal to separate living fromdead specimens. Monthly values of the surfacewater chlorophyll a content were also availableand give a measure of the primary production.During spring 1994 the dominant foraminiferalspecies, Stainforthia fusiformis, multiplied itspopulation size by seven times during one monthas a consequence of food input from the springphytoplankton bloom. The abundance of thisspecies correlates positively with the surfacewater chlorophyll a content. Populations of severalother species also increased during thespring of 1994. A deep-water inflow in February1994 may have triggered reproduction of severalforaminiferal species, recognized as a temporarypopulation decline. We also compared our resultswith Höglund’s (1947) foraminiferal study,performed in the same area in the summer of1927. We found that a major alteration trendingtowards a more opportunistic low oxygen tolerantfauna has occurred since then.2008040229英 国 南 部 潮 间 带 现 生 有 孔 虫 垂 直 分 布 的 短 期变 化 = Temporal variability in vertical distributionsof live(stained) intertidal foraminifera,southern England. ( 英 文 ). Alve E; Murray J W.Journal of Foraminiferal Research, 2001, 31(1):12-24 2 图 版 .The temporal variability (over 27 months) inabundance, depth of life in the sediment, andspecies diversity of hard-shelled, live (stained)foraminifera in an intertidal area has been determined.Throughout the investigation period,the same three species (Haynesina germanica,Ammonia beccarii (tepida), Elphidium excavatum)were dominant at the two investigated stations,the maximum abundance of all species(dominant and subsidiary) was in the surface0.25cm, and there was a general lack of seasonalchange in the vertical distribution of the foraminifera.Seasonality does not seem to be acontrolling factor for the vertical distribution ofindividuals in this area and none of the foraminiferashowed high subsurface abundances.Because of the difference in depth position ofthe redox boundary within the sediment (often1cm) and the maximum abundance of individuals(surface 0.25cm) the former cannot be themain factor limiting their vertical distribution ofabundance. The generally high dominance ofindividuals in the surface few millimeters isprobably related to the presence there of microalgalfood and limited burrowing activity of thesparse macrofauna. Subsidiary species colonizedthe area ephemerally, thus the number of speciesrecorded varied from one season to another. Theminimum and maximum number of speciesfound at any single sampling event were 5 and22, whereas the cumulative number of stainedspecies found throughout the investigation periodwas 35 (plus at least three soft-shelledforms). Species diversity is one of the principalunivariate methods used to assess both naturalvariability and possible human impacts. Thelarge natural seasonal variability demonstratedhere suggests that caution should be taken inassessing the significance of diversity changeswhen based on occasional sampling only.2008040230四 个 浮 游 有 孔 虫 种 反 映 的 晚 第 四 纪 北 大 西 洋古 海 洋 学 和 稳 定 同 位 素 变 化 特 征 = Late Quaternarynorth Atlantic paleoceanographic recordsand stable isotopic variability in four planktonicforaminiferal species. ( 英 文 ). Bäckström D L;Kuijpers A. Journal of Foraminiferal Research,2001, 31(1): 25-32The distribution of planktonic foraminiferalspecies in two cores, ENAM 30 and ENAM 94-13, taken within the framework of the EuropeanNorth Atlantic Margin (ENAM) project fromwater depths of around 1200 m, south-west ofthe Faeroe Islands, were investigated. The oxygenisotope record of the polar Neogloboquadrinapachyderma sinistral includes OxygenIsotope Stages (OIS) 4 to OIS 1 in core ENAM30, whereas that of core ENAM 94-13 precedesthe OIS 6/7 boundary. The age of the sedimentsis based on AMS 14C measurements. The micropaleontologicalrecord suggests much morevariable hydrographic conditions during OIS 773