Aquatic ecosystems

... himasako4713@yahoo.co.jp Received May 15, 2010, Accepted August 24, 2010. - 393 - Seasonal Changes of Shallow Aquatic Ecosystems in a Bird Sanctuary Pond Masako NAKAMURA*, Tohru YABE**, Yuichi ISHII**, Kaname ... macrophyte in one year. Keywords: migratory waterfowl, seasonal changes of water quality, shallow aquatic ecosystems. INTRODUCTION Waterfowl such as Anseri...

Ngày tải lên: 05/09/2013, 10:15

... [ 14 C] chlorpyfiros uptake in aquatic insects. Canadian Journal of Fisheries and Aquatic Science, 59, 1315–1322. Camargo, J.A., Alonso, A. & Salamanca, A. (2005). Nitrate toxicity to aquatic animals: ... sympo- sium to aquatic ecosystems. Evidently we did not change the culture, since the Body Size symposium held at the University of Hertfordshire in September 2005 was only the...

Ngày tải lên: 17/02/2014, 19:20

... lipids and contaminants in aquatic food webs. In doing so we will examine their dynamics in aquatic ecosystems and demonstrate their potential for assessing and predicting aquatic food web health, ... and A.T. Fisk sense, strengthen the nutritional status of aquatic food webs. Although de novo synthesis of omega-3 (n-3) PUFA in aquatic ecosystems is generally restricted to al...

Ngày tải lên: 17/02/2014, 19:20

... organic matter (DOM) is the major form of organic matter in almost all aquatic ecosystems. It plays significant roles in aquatic food webs, mediates the availability of dissolved nutrients and ... and hydrology on DOM delivery to aquatic ecosystems is becoming clearer, providing a nice example of how physical structure affects material movements among ecosystems. Somewhat less apprec...

Ngày tải lên: 16/03/2014, 11:45

Ngày tải lên: 16/03/2014, 11:45

... are permanently removed from aquatic ecosystems by rapid flushing downstream and by volatilization or degradation. Research into PTOC transport and fate in aquatic ecosystems should remain focused ... Contaminants in Aquatic Environments (Proceedings of the Rostov-on-Don Symposium, May 1993). IAHS Publ. no. 219, 1994. 21 Transport and fate of persistent toxic organic chemic...

Ngày tải lên: 22/03/2014, 14:20

... Climate control of underwater UV exposure in polar and alpine aquatic ecosystems. In Orbaek, J.B. et al. (eds), Arctic Alpine Ecosystems and People in a Changing Environment, pp. 227–249. ... Arctic and Antarctic  uvial ecosystems 96 5.8.1 Stream discharge 96 5.8.2 Stream ecosystems 97 5.9 Conclusions 97 Acknowledgments 98 References 98 6 Ice-based freshwater ecosystems 103 Ian...

Ngày tải lên: 29/03/2014, 17:20

... shrimp may or Manual of Diagnostic Tests for Aquatic Animals 2009 xv DEFINITIONS The Aquatic Animal Health Code (companion volume to this Aquatic Manual) contains a list of definitions ... be consulted for the meaning of terms used in this Aquatic Manual. Some terms that are not used in the Aquatic Code but that appear in the Aquatic Manual, are defined below: Confidence...

Ngày tải lên: 21/08/2013, 13:57

... organic matter, and it is considered that controlling them can create a diverse aquatic biota. KEYWORDS Aquatic biota; biofilm; detritus; macrobenthos; river restoration; surface area ... attention in that utilizes the self-design function of an ecosystem for recovering original aquatic ecosystems (Mitsch and Jørgensen, 1989; Shield Jr. et al., 1995), river restorations of d...

Ngày tải lên: 05/09/2013, 08:40

... islands with vegetation have been a focus as a means of removing nutrients, and restoring the aquatic ecosystems. The artificial floating islands with vegetation have been applied to many lakes, ... Agriculture and Technology, 2-24-16 Naka, Koganei, Tokyo 184-8588, Japan ABSTRACT Certain aquatic and/or terrestrial plants have been used as artificial floating island systems in...

Ngày tải lên: 05/09/2013, 09:38