Zooplankton refers to the weakly swimming animals inhabiting aquatic habitat. It plays an important role in the aquatic ecosystem since it is considered as a primary consumer transferring energy to higher ones in the food web. Crustacean zooplankton constitutes a major part of zooplankton which includes Copepoda, Cladocera and Ostracoda. The present book is the outcome of several taxonomic works started in 1987 and concentrated on the freshwater crustacean zooplankton of Egypt. It includes 145 figures and keys illustrating the morphology of these groups. Also previous works on the ecology of the groups are summarized. No doubt, the book will help workers all over the world to identify these important groups and to understand their ecology and distribution. This will initiate subsequent studies on the groups.
Zooplankton of the Atlantic and Gulf Coasts – A Guide to Their Identification and Ecology
Zooplankton of the Atlantic and Gulf Coasts – A Guide to Their Identification and Ecology
The Cladocera (Crustacea: Branchiopoda) are primarily a freshwater group and an important component of the crustacean zooplankton. Seventy seven water bodies have been sampled from South Rajasthan State (India) for the study of Cladocerans covering seven districts: Udaipur, Rajsamand, Chittorgarh, Pratapgarh, Bhilwara, Dungarpur, and Banswara. These are located in the southern part of Rajasthan between 23o11' to 27o50 North latitude and 72o16' to 75o25' East longitude. In Rajasthan, India, many studies have been conducted on the diversity of freshwater fishes, phytoplankters, rotifers, and copepods; however, no proper record on cladocerans is available till date. Zooplankton samples from 77 different water bodies of South Rajasthan were analyzed to investigate the Cladocera inhabiting these water bodies. In all, 58 species of cladocerans were reported belonging to six families viz. the Sididae, Daphniidae, Moinidae, Bosminidae, Macrothricidae, and Chydoridae. In general, it was noticed that rich nutrients, the presence of weeds and shallow stagnant waters favoured rich diversity as well as biomass of cladocerans.
The plankton community is a heterogeneous group consisting of tiny plants to large jelly fishes of over 10 m long adapted to suspension in the sea and freshwaters. Animals with feeble locomotory power and which are carried along by the moving water are called as plankton. They are divided into phytoplankton and zooplankton. The zooplankton assemblage inhibiting freshwater mostly comprise of Protozoa, Coelenterate, Rotifera, Gastrotricha, Bryozoa and Arthropoda (Battish 1992). Most zooplankton occupies the second or third tropic level of the aquatic food web as such these herbivores, carnivores and omnivores play a significant role in aquatic food webs. The minute size of phytoplankton denotes that aquatic grazers are very small and therefore there exits many steps or links in aquatic food webs which are necessary to support large carnivores such as fish. There are many studies on the zooplankton populations of tropical ponds. As zooplankton constitutes important live feed for many economically important fishes and prawns a large quantity of zooplankton is harvested daily by the aquarists from the ponds (Altaff et al 2002).
This book is mainly focused on freshwater zooplankton diversity and dominance in a freshwater pond ecosystem from kanchipuram District Tamilnadu, India.This study mainly focus on qualitative and quantitative analysis of freshwater ecosystem in kanchipuram district and This study was carried out in aquaculture and aquatic toxicology laboratory, The New College,Chennai, India. I am extremely grateful thank to my publication LAP LAMBERT Academic Publishing Germany. For their keen interest and kind co-operation in this book.
Antioxidant and anti-inflammatory agents play a critical role in body protection by scavenging active oxygen and free radicals and neutralizing lipid peroxides Therefore, there is need for a natural product that protects the body but cost-effective, safe and without side effects. pharmacological effects due to the properties of their constituents.Freshwater bivalves occurring in Egypt represent a neglected animal group and little is known about them or their diversity; perhaps due to the fact that they have no apparent economic or medical importance. Egyptian freshwater mussels (Coelatura aegyptiaca) are a Molluscan Bivalve belonging to Unionoidae common in the Egyptian River Nile. This book aimed to evaluate the possible effect of C. aegyptiaca extract for the first time in Egypt, in order to establish whether it would exacerbate or ameliorate the adverse effects of MSG on some serum parameters and oxidative markers in the liver, kidney, testis and brain of rats using vitamin C as a positive control group.
Zooplankton samples were collected on seasonal basis from King Talal Dam to determine the concentration of selected heavy metals, and to assess the possible use of zooplankton as bioindicator for heavy metals pollution. Zooplankton composition and biomass were determined in KTD. Horizontal gradient in temperature of the surface water of the dam was absence. A positive correlation has been found between chlorophyll a, zooplankton biomass and temperature, while the correlation with transparency was negative. The results showed that zooplankton in the size fraction (350-500 µm) concentrate relatively higher heavy metals compared to othe fractions. The Zn, Cu, Pb and Mg in zooplankton showed seasonal variations in concentrations with higher values during summer. The most abundant zooplankton species in KTD were Mesocyclops leuckarti, Daphnia magna, Brachionus caliciflorus and Filina longiseta which can be used as bioindicator for over all reservoir health and heavy metals pollution in the dam
Antioxidants or free radical scavengers are very important in protecting the living cells against any damage induced by free radicals which are produced continuously in cells either during phagocytosis or accidentally as by-product metabolites. Each biological system has certain antioxidant mechanisms against the aggregations of such free radicals. Products from freshwater and marine sources have recently become attractive as nutraceutical and functional foods as well as a source material for the development of drugs and specific health foods. Since, the red swamp crayfish, Procambarus clarkii (Girard, 1852) and Erugosquilla massavensis, (Koossmann,1880) are rich in taurine and other sulphur containing amino acid, we aim to throw the light for the first time in Egypt on their antioxidant activity and subsequently their curative effect against CCl4 induced hepatotoxicity and nephrotoxicity as well as erythrocytes toxicity in rats.
The present work deals with the changes in the Ecology (environmental conditions which include physico-chemical conditions and the biological features) of the Rosetta Estuary of Nile River and its effect on the dynamics of zooplankton organisms in this rapid changing area. Sampling of both water and zooplankton was carried out monthly along one year from April, 2007 to April, 2008. Sampling was undertaken from the littoral and mid stream sites (two stations at east and west of estuary mouth in the Mediterranean Se, one at the entrance of estuary and the remaining five stations in the estuary). The work includes photo graphic cataloge to the fauna of this estuary.
Field Guide to Freshwater Invertebrates of North America,
The perspective of climate change and its direct affects on freshwater resources and indirect affects on diversity of fish fauna and freshwater micro-fauna such as zooplankton was presented here. North-eastern India- a mega biodiversity hot spot is considered as a natural resource of observation. Two key environmental parameters such as temperature and rainfall have been investigated in relation to climate change in North-eastern India in general and Tripura in particular. During a period of 28 years from 1982 to 2010 the atmospheric temperature is increased- 17.2-22.12 0C with average increase-0.2 0C per year. Rainfall is decreased from 162 mm to 37 mm, with average decrease- 3.34-5.26 mm per year. Data of CO2 at 0530 hrs shows a mean value- 17.27±6.43 ppm. Hence,data of climate change is relatively greater. Diversity of freshwater fish species in the freshwater ecosystem is reduced to 67 species from 146 species of 1982. Therefore,gradual decrease of rainfall as well as increase of temperature and CO2 over a period of three decades are the results of climate change in freshwater environment of North-Eastern Indian region.
Traditions of the Bible – A Guide to the Bible as it was at the Start of the Common Era
This book aims to providing the scientists and students with a guide for coral disease identification in the northern Red Sea, Egypt and to quantify the coral diseases relative to both biological and non biological stresses in the area. A data base on coral diseases in the area will be established, this will help using coral diseases as biomonitors of environmental impacts, in turn acting to remove or minimize these impacts. Removing or minimizing these impacts will improve the coral reef environment, in turn help to improving fish stocks, tourist attraction, national income; economic, scientific and medical values of coral reef ecosystems. However conserving the marine biodiversity will be improved.
Fly Fishing Long Island – A Comprehensive Guide to Freshwater and Saltwater Angling