A Guide To The Euphausiacea Of The Southern Ocean
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Biology and Ecology of Antarctic Krill
| Author | : Volker Siegel |
| Publisher | : Springer |
| Total Pages | : 458 |
| Release | : 2016-08-03 |
| Genre | : Science |
| ISBN | : 331929279X |
This book gives a unique insight into the current knowledge of krill population dynamics including distribution, biomass, production, recruitment, growth and mortality rates. Detailed analysis is provided on food and feeding, reproduction and krill behaviour. The volume provides an overview on the aspects of natural challenges to the species, which involve predation, parasites and the commercial exploitation of the resource and its management. A chapter on genetics shows the results of population subdivision and summarizes recent work on sequencing transcriptomes for studying gene function as part of the physiology of live krill. The focus of Chapter 4 is on physiological functions such as biochemical composition, metabolic activity and growth change with ontogeny and season; and will demonstrate which environmental factors are the main drivers for variability. Further discussed in this chapter are the bottle necks which occur in the annual life cycle of krill, and the mechanisms krill have adapted to cope with severe environmental condition.
Fisheries and Aquaculture
| Author | : Gustavo Lovrich |
| Publisher | : Oxford University Press |
| Total Pages | : 579 |
| Release | : 2020-07-08 |
| Genre | : Science |
| ISBN | : 0190865636 |
This is the ninth volume of ten in the The Natural History of the Crustacea Series. The chapters in this volume synthesize the diverse topics in fisheries and aquaculture. In the first part of the book, chapters explore worldwide crustacean fisheries. This section comes to a conclusion with two chapters on harvested crustaceans that are usually not within the focus of the mainstream fisheries research, possibly because they are caught by local fishing communities in small-scale operations and sold locally as subsistence activity. In the second part of the book, the authors explore the variety of cultured crustacean species, like shrimps, prawns, lobsters, and crabs. Chapters in the third part of the volume focus on important challenges and opportunities, including diseases and parasitism, the use of crustacean as bioindicators, and their role in biotechnology.
The Southern Ocean II
| Author | : Paul Tréguer |
| Publisher | : |
| Total Pages | : 328 |
| Release | : 2002 |
| Genre | : Carbon cycle (Biogeochemistry) |
| ISBN | : |
Krill
| Author | : Jonah Young |
| Publisher | : Ice Press |
| Total Pages | : 79 |
| Release | : 2015-01-06 |
| Genre | : Science |
| ISBN | : |
Note that this book is based on Wikipedia and other public domain resources. Krill are small crustaceans of the order Euphausiacea, and are found in all the world's oceans. The name krill comes from the Norwegian word krill, meaning "young fry of fish", which is also often attributed to other species of fish. Krill are considered an important trophic level connection – near the bottom of the food chain – because they feed on phytoplankton and to a lesser extent zooplankton, converting these into a form suitable for many larger animals for whom krill makes up the largest part of their diet. In the Southern Ocean, one species, the Antarctic krill, Euphausia superba, makes up an estimated biomass of around 379 million tons, more than that of humans. Of this, over half is eaten by whales, seals, penguins, squid and fish each year, and is replaced by growth and reproduction. Most krill species display large daily vertical migrations, thus providing food for predators near the surface at night and in deeper waters during the day.
Southern Ocean Ecology
| Author | : Sayed Z. El-Sayed |
| Publisher | : Cambridge University Press |
| Total Pages | : 448 |
| Release | : 1994-02-24 |
| Genre | : Nature |
| ISBN | : 9780521443326 |
BIOMASS (Biological Investigations of Marine Antarctic Systems and Stocks) was a unique, large-scale, long-term, international research programme established in 1977 to investigate the ecology of the Southern Ocean. Its main aim was to gain a greater understanding of the biological systems and stocks in the marine Antarctic environment, thereby providing a sound basis for the future management of the living resources within this immense ocean. The programme was drawn to a close in 1991 and its completion marked by a colloquium which brought together key researchers to summarise and review the results obtained. This volume, arising from that colloquium, provides a succinct, state-of-the-art account of the ecology of the Southern Ocean and serves as a comprehensive record of this unique and successful international project.
An Annotated Atlas of the Vascular Flora of Macquarie Island
| Author | : G. R. Copson |
| Publisher | : |
| Total Pages | : 80 |
| Release | : 1984 |
| Genre | : Botany |
| ISBN | : |
The atlas shows the known distribution and abundance of each vascular species on Macquarie Island immediately prior to the commencement of control measures against rabbits in 1978. It gives a baseline against which changes in the vegetation can be monitored. The effects of the introduced vertebrates on the vegetation are discussed. Additional data are given on the habitat, gregarious performance and phenology of some species.
