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Animal biodiversity: An outline of higher-level classification and survey of taxonomic richness
  • Language: en
  • Pages: 239
Advances in Sponge Science: Phylogeny, Systematics, Ecology
  • Language: en
  • Pages: 451

Advances in Sponge Science: Phylogeny, Systematics, Ecology

Outgrowth of the [8th] World Sponge Conference held in Girona, Spain, in Sept. 2010. Cf. pref.

Comprehensive Natural Products II
  • Language: en
  • Pages: 7944

Comprehensive Natural Products II

  • Type: Book
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  • Published: 2010-03-05
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  • Publisher: Elsevier

This work presents a definitive interpretation of the current status of and future trends in natural products—a dynamic field at the intersection of chemistry and biology concerned with isolation, identification, structure elucidation, and chemical characteristics of naturally occurring compounds such as pheromones, carbohydrates, nucleic acids, and enzymes. With more than 1,800 color figures, Comprehensive Natural Products II features 100% new material and complements rather than replaces the original work (©1999). Reviews the accumulated efforts of chemical and biological research to understand living organisms and their distinctive effects on health and medicine Stimulates new ideas am...

Marine Pharmacognosy
  • Language: en
  • Pages: 457

Marine Pharmacognosy

  • Type: Book
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  • Published: 2012-12-06
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  • Publisher: CRC Press

Diverse and abundant, marine-derived bioactive compounds offer a plethora of pharmacologically active agents with the potential to produce valuable therapeutic entities. Marine-derived organisms, including some macroalgae, microalgae, blue-green algae, invertebrates, and vertebrates—valued in traditional Chinese medicine since ancient times—are now recognized as rich sources of pharmaceutically active compounds. These factors, coupled with the growing need for novel bioactives for the treatment of severe human diseases such as cancer, diabetes, microbial infections, and inflammatory processes, has brought marine pharmaceuticals to the forefront of pharmacology. Marine Pharmacognosy: Tren...

na
  • Language: en
  • Pages: 382

na

One of the major questions in the evolution of animals is the transition from unicellular to multicellular organization, which resulted in the emergence of Metazoa through a hypothetical Urmetazoa. The Comparative Embryology of Sponges contains abundant original and literary data on comparative embryology and morphology of the Porifera (Sponges), a group of 'lower Metazoa'. On the basis of this material, original typization of the development of Sponges is given and the problems concerning origin and evolution of Porifera and their ontogenesis are discussed. A morphogenetic interpretation of the body plan development during embryogenesis, metamorphosis and asexual reproduction in Sponges is ...

The Alkaloids
  • Language: en
  • Pages: 308

The Alkaloids

This series is world-renowned as the leading compilation of current reviews of this vast field. Internationally acclaimed for more than 40 years, The Alkaloids, founded by the late Professor R.H.F. Manske, continues to provide outstanding coverage of this rapidly expanding field. Each volume provides, through its distinguished authors, up-to-date and detailed coverage of particular classes or sources of alkaloids. - Up-to-date reviews on a large and very important group of natural products from both a chemical and biological perspective - Comprehensive, dynamic reviews written by leading authors in the respective fields - Broad coverage on the biological aspects

Skeletons in confusion: a review of astrophorid sponges with (dicho?)calthrops as structural megascleres (Porifera, Demospongiae, Astrophorida)
  • Language: en
  • Pages: 96

Skeletons in confusion: a review of astrophorid sponges with (dicho?)calthrops as structural megascleres (Porifera, Demospongiae, Astrophorida)

Sponges usually obtain their distinct shape and structure by arrangement of mineral or organic skeletal elements (spicules, ?bers). A small group, although provided with spicules, nevertheless is incapable of developing recognizable shapes because the type of structural spicules they have (equal-length four-rayed siliceous elements called calthrops) preclude the possibility of building a cohesive skeleton. Such sponges insinuate themselves in crevices and holes, diminishing the chance of their discovery and collection. The study addresses the taxonomy and biodiversity of two globally distributed genera of these sponges, Dercitus and Calthropella, including the description of ten new species (of 38 species so far documented). The two genera appear similar in spiculation, but they differ in the types of small spicules (microscleres). This induces a discussion of their phylogeny and classi? cation: are they closely related or is it convergent evolution? No proposals are made for a rearranged classi? cation pending independent evidence from molecular studies.

Wildlife Review
  • Language: en
  • Pages: 120

Wildlife Review

  • Type: Book
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  • Published: 1975
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  • Publisher: Unknown

None

A Guide to the Deep-water Sponges of the Aleutian Island Archipelago
  • Language: en
  • Pages: 206

A Guide to the Deep-water Sponges of the Aleutian Island Archipelago

  • Type: Book
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  • Published: 2011
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  • Publisher: Unknown

Furthermore, sponges are extremely fragile and easily damaged by contact with fishing gear. High rates of fishery bycatch clearly indicate a strong interaction between existing fisheries and sponge habitat. Bycatch in fisheries and fisheries-independent surveys can be a major source of information on the location of the sponge fauna, but current monitoring programs are greatly hampered by the inability of deck personnel to identify bycatch. This guide contains detailed pecies descriptions for 112 sponges collected in Alaska, principally in the central Aleutian Islands. It addresses bycatch identification challenges by providing fisheries observers and scientists with the information necessary to adequately identify sponge fauna.Using that identification data, areas of high abundance can be mapped and the locations of indicator species of vulnerable marine ecosystems can be determined.

Climate Change, Ocean Acidification and Sponges
  • Language: en
  • Pages: 456

Climate Change, Ocean Acidification and Sponges

  • Type: Book
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  • Published: 2017-10-27
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  • Publisher: Springer

While sponges represent a very simple group of organisms, which are represented by over 8000 species, there is considerable interest in the increasing role they may play in future marine ecosystems. While we still have a comparatively limited understanding of how sponges will respond to ocean warming and acidification there is evidence that some species may have the ability to acclimate or even adapt to these stressors. This comprehensive collection of articles describes our current understanding of the impacts of ocean acidification and warming on sponges across multiple levels of biological organisation, and from the geological past to the present. With expert contributions from across the world this book represents the most up-to-date view on sponge responses to climate change. This book will be of interest to a wide audience of marine scientists and managers, who are grappling with how to manage, conserve and protect marine ecosystems.