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101.
Abstract. The recruitment and growth modalities of two populations of Acrocnida brachiata (Echinodermata: Ophiuroidea) from the intertidal and from a depth of 20 m in Douarnenez Bay (Brittany) were compared. This study was conducted in order to establish whether the populations developed differently according to environmental stability. The results were compared with those found in another amphiurid, Amphiura filiformis , distributed along a similar gradient of disturbance in the subtidal zone. The purpose was to determine whether the biological parameters from different species vary in a similar manner along such a gradient and. if not, what is the role of biotic and physical factors in the control of demographic structure in intertidal and subtidal populations. 相似文献
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A potential source of recruitment of Acartia pacifica nauplii: viable benthic resting eggs 总被引：4，自引：0，他引：4
1 Introduction M any estuarine and coastal copepods that havepreviously been classified as holoplankton m ightbestbe described as adultm eroplankton since they actuallyspend a portion oftheir life cycle in the seabed as rest-ing eggs [review ed by G rice and M arcus (1981) andM arcus (1996)]. R esting eggs can be extrem ely abun-dant (106 m ) in bays and estuaries especially w here -2w aterdepths are less than 20 m (M arcus,1989).Theyare likely to profoundly influence the dynam ics ofpel… 相似文献
105.
Managing fish stocks under climate uncertainty 总被引：1，自引：0，他引：1
Rothschild Brian J.; Chen Changsheng; Lough R. Greg 《ICES Journal of Marine Science》2005,62(7):1531-1541
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Francisco E. Werner John A. Quinlan Brian O. Blanton Richard A. Luettich Jr. 《Journal of Sea Research》1997,37(3-4)
A review of the physical processes present in coastal regions and their effect on pelagic stages of flatfish populations is presented. While quantitative understanding of processes affecting cross-shelf transport and exchange continues to be a fundamental problem shared by physical oceanographers and fisheries scientists studying the early life history of flatfish, advances in hydrodynamic and coupled physical-biological models have made it possible to begin to examine population-level implications of environmental processes. There is now a need to rank these processes in terms of their impact on recruit strength. Existing paradigms provide testable frameworks for explaining the role of physical variability in the observed population patterns, abundance and variability. Identifying explicit links between physical variability and recruitment could result in new approaches to fisheries management strategies. 相似文献
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Santos A. Miguel P.; de Fatima Borges Maria; Groom Steve 《ICES Journal of Marine Science》2001,58(3):589-596
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酵母双杂交系统是一种新兴的体内研究蛋白质之间相互作用以及筛选cDNA文库的技术手段,自建立以来得到了不断的改进与发展。在此基础上又相继出现了单杂交、三杂交、反向双杂交以及SOS富集系统等多种衍生系统,它们在功能基因组学、蛋白质组学以及药物开发研究中发挥了重要作用。本文拟就双杂交系统的原理、改进、发展及应用做一综述。 相似文献