| ► Description: |
■ Vol1:
The biology of the Siberian sturgeon,
Acipenser baerii Brandt 1869, has
become a very attractive subject of
investigation for biologists since the
1980s. This volume 1 is part of a
two-volume set devoted to the species, the
second of which focuses on farming. The
present volume is divided into three
parts: Biology and ecology, Biology and
physiology of reproduction, and
Ecophysiology, i.e. adaptation to the
environment.
The first part addresses a broad range of
topics, such as: the ecology, including a
new approach to species-specificity, a new
insight on the mineralization of vertebral
elements, two approaches to sex
determination, transposable elements in
the gonads, early ontogeny, olfaction and
gustation, nutrition and swimming. The
second part includes neurochemical and
anatomical descriptions of the central
nervous system and an updated version of
the oogenesis, the characteristics of both
sperm and spermatozoa, and a synthesis on
gonadal steroids (synthesis, plasmatic
levels and biological activities). In
turn, the third part reveals how the
physiology of the species changes
depending on environmental factors such as
oxygen, ammonia, and nitrite. Some
fundamental consequences of ammonia are
developed (sublethal and lethal levels,
effects on gill epithelium and
haematology, acid-base balance, on AA and
adenyl nucleotides levels in plasma, brain
and muscle tissue). In addition, the book
includes two methodological chapters
dealing with fish dorsal aortic
cannulation and respiration physiology.
■ Vol2:
The Siberian sturgeon, Acipenser baerii
Brandt 1869 is the most widely farmed
sturgeon species. Continuing from Volume
1, which focuses on the biology of the
species, the present Volume 2 in turn
examines farming aspects. It is divided
into six parts, the first of which deals
with reproduction and early ontogenesis,
i.e. reproductive cycles, controlled
reproduction, sperm cryoconservation, and
weaning of larvae. The second covers the
growing phase with a focus on food and
feeding (management, fish meal
replacement, potential endocrine
disruptions, usefulness of prebiotics and
immunostimulants, and nitrogen excretion).
Production-related data are the focus of
the third part and include:
characteristics (countries, structures of
production, evolution in production,
economic features) of the gross production
of the species (meat and caviar)
worldwide, a method for assessing the
quality of caviars, off-flavors
management, and an example of production
of fingerlings for restocking. Part four
addresses selected long-term management
issues: genetic variability of brood
stocks, genome manipulation and sex
control, and the advantages of hybrids.
The next three chapters constitute the
fifth part, which is devoted to health
status (immunology and welfare). In
closing, the absence of ecological risks
of introducing the species in non-native
waters is shown using two long-term
documented examples (Russia and France).
Three methodological chapters round out
the volume, covering: in vitro incubation
of ovarian follicles, a richly illustrated
library of echographies and photos, and a
detailed presentation of oxygen demand
studies.
Contents
Volume 1
Part I: Biology & Ecology
Part II. Biology & Physiology of
Reproduction
Part III. Ecophysiology: Adaptation to
Environment
Part IV. Specific Methods
Volume 2
Part I: Reproduction and Early Ontogenesis
Part II: Ongrowing
Part III. Production: Caviars: How To
Describe And Compare Their Qualities?
Part IV: Long-Term Management of Brood
Stock
Part V: Ecological Risks
Part VI: Specific Methods
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