H.R. 4465, "Endangered Fish Recovery Programs Extension Act of 2017" PDF Download

Author: United States. Congress. House. Committee on Natural Resources. Subcommittee on Water, Power, and Oceans
Publisher:
ISBN:
Category : Endangered species
Languages : en
Pages : 34

View

Book Description

Author: United States. Congress
Publisher:
ISBN:
Category : Law
Languages : en
Pages : 114

View

Book Description

Author: United States
Publisher:
ISBN:
Category : Election law
Languages : en
Pages : 6

View

Book Description

Author: Hans-Curt Flemming
Publisher: IWA Publishing
ISBN: 1780407416
Category : Science
Languages : en
Pages : 336

View

Book Description
The Perfect Slime presents the latest state of knowledge and all aspects of the Extracellular Polymeric Substances, (EPS) matrix – from the ecological and health to the antifouling perspectives. The book brings together all the current material in order to expand our understanding of the functions, properties and characteristics of the matrix as well as the possibilities to strengthen or weaken it. The EPS matrix represents the immediate environment in which biofilm organisms live. From their point of view, this matrix has paramount advantages. It allows them to stay together for extended periods and form synergistic microconsortia, it retains extracellular enzymes and turns the matrix into an external digestion system and it is a universal recycling yard, it protects them against desiccation, it allows for intense communication and represents a huge genetic archive. They can remodel their matrix, break free and eventually, they can use it as a nutrient source. The EPS matrix can be considered as one of the emergent properties of biofilms and are a major reason for the success of this form of life. Nevertheless, they have been termed the “black matter of biofilms” for good reasons. First of all: the isolation methods define the results. In most cases, only water soluble EPS components are investigated; insoluble ones such as cellulose or amyloids are much less included. In particular in environmental biofilms with many species, it is difficult to impossible isolate, separate the various EPS molecules they are encased in and to define which species produced which EPS. The regulation and the factors which trigger or inhibit EPS production are still very poorly understood. Furthermore: bacteria are not the only microorganisms to produce EPS. Archaea, Fungi and algae can also form EPS. This book investigates the questions, What is their composition, function, dynamics and regulation? What do they all have in common?

Author: Jordi Catalan
Publisher: Springer
ISBN: 3319559826
Category : Nature
Languages : en
Pages : 413

View

Book Description
This book provides case studies and general views of the main processes involved in the ecosystem shifts occurring in the high mountains and analyses the implications for nature conservation. Case studies from the Pyrenees are preponderant, with a comprehensive set of mountain ranges surrounded by highly populated lowland areas also being considered. The introductory and closing chapters will summarise the main challenges that nature conservation may face in mountain areas under the environmental shifting conditions. Further chapters put forward approaches from environmental geography, functional ecology, biogeography, and paleoenvironmental reconstructions. Organisms from microbes to large carnivores, and ecosystems from lakes to forest will be considered. This interdisciplinary book will appeal to researchers in mountain ecosystems, students and nature professionals. This book is open access under a CC BY license.

Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9251091870
Category : Social Science
Languages : en
Pages : 37

View

Book Description
The understanding that some pesticides are more hazardous than others is well established. Recognition of this is reflected by the World Health Organization (WHO) Recommended Classification of Pesticides by Hazard, which was first published in 1975. The document classifies pesticides in one of five hazard classes according to their acute toxicity. In 2002, the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) was introduced, which in addition to acute toxicity also provides classification of chemicals according to their chronic health hazards and environmental hazards.

Author: Ololade Olatunji
Publisher: Springer Nature
ISBN: 3030347095
Category : Technology & Engineering
Languages : en
Pages : 371

View

Book Description
This book presents a comprehensive survey about the most recent developments in industrial applications, processing techniques and modifications of polymers from marine sources. It systematically introduces the reader to the biomaterials Chitin, Collagen, Alginates, Cellulose and Polyesters and links their interwoven industrial significance and environmental implications. The book elucidates the impact of industrial sourcing of the aquatic system for organic and inorganic matter on the environment and deepens the understanding of the industrial and economic significance of aquatic biopolymers. Further it addresses the question of how to balance the conservation of aquatic life and the industrial and economic interest in developing biodegradable alternatives for plastic. Thus the book will appeal to scientists in the field of chemistry, materials and polymer science as well as engineering.

Author:
Publisher:
ISBN:
Category : Armor
Languages : en
Pages : 2

View

Book Description

Author: United States. President's Committee on Youth Employment
Publisher:
ISBN:
Category : Youth
Languages : en
Pages : 130

View

Book Description

Author: United States. Congress. House. Committee on Natural Resources. Subcommittee on Water and Power
Publisher:
ISBN:
Category : Endangered species
Languages : en
Pages : 37

View

Book Description