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Books > Science & Mathematics > Biology, life sciences > Zoology & animal sciences > Invertebrates > General
Despite their enormous bulk and complexity of architecture, plants make up only around a quarter of a million of the 8 million or so species on Earth. The major components of biodiversity, instead, are the smaller, largely unseen, silent majority of invertebrates - most of which are arthropods. Vertebrates, a mere blip on the biotic horizon, are elevated in importance in the bigger scheme of things only by the human psyche.This collection of more than 30 peer-reviewed papers focuses on the diversity and conservation of arthropods, whose species inhabit virtually every recess and plane - and feature somewhere in virtually every food web - on the planet. Highlighting issues ranging from large-scale disturbance to local management, and from spatial heterogeneity to temporal patterns, these papers reflect some of the most exciting new research taking place today - and in some of the most biodiverse corners of the planet.
As sequel to Aquatic Animal Nutrition - A Mechanistic Perspective from Individuals to Generations, the present treatise on organic macro- and micronutrients continues the unique cross fertilization of aquatic ecology/ecophysiology and aquaculture. This treatise considers proteins and their constituents, carbohydrates from mono- to polysaccharides, fatty acids from free acids to fat, and waxes. It becomes obvious that these organic nutrients are more than only simple fuel for the metabolism of animals; rather, their constituents have messenger and controlling function for the actual consuming individual and even for succeeding generations. This aspect will become particularly clear by putting the organisms under consideration back into their ecosystem with their interrelationships and interdependencies. Furthermore, micronutrients, such as vitamins and nucleotides as well as exogenous enzymes, are in the focus of this volume with known and still-to-be-discovered controlling physiological and biomolecular functions. Aquatic Animal Nutrition - Organic Macro and Micro Nutrients addresses se veral gaps in nutritional research and practice. One major gap is the lack of com mon research standards and protocols for nutritional studies so that virtually incomparable approaches have to be compared. This applies also to the studied animals, since most approaches disregard intraspecific variabilities and the existence of epimutations in farmed individuals. Furthermore, recalling the Mechanistic Perspective from Individuals to Generations, dietary benefits and deficiencies have effects on succeeding generations. In most studies, this long-term and sustainable aspect is overruled by pure short-term production aspects. By comparing nutritional behavior and success of fishes and invertebrates, Aqua tic Animal Nutrition points out different metabolic pathways in these animal groups and discusses how, for instance, fishes would benefit when having some successful metabolic pathway of invertebrates. Application of novel ge ne tic techniques will help turn this vision into reality. However, a widely missing link in the current nutritional research is epigenetics regarding transgenerational heritages of acquired morphological and physiological properties. To in crease public acceptance, nutritional optimization of farmed animals based on this mechanism, rather than genetical engineering, appears promising.
This book is a comprehensive elucidation on aspects of reproduction and development in platyhelminthes covering from acoelids to taeniids. With the unique presence of neoblasts, turbellarians serve as a model for studies on cancer and senescence. Of ~ 27,000 species, ~ 77% are parasites; they are harmful to man and his food basket from livestock and fish. The stress hormone, cortisol level is responsible for susceptibility and resistance of the host. In digeneans, the propagatory multiplication potency is retained by all the larval forms and in either direction in sporocyst. The higher clonal diversity, mixing and selection in Second Intermediate Host (SIH) may purge inbreeding depression suffered by the fluke on propagatory multiplication in First Intermediate Host (FIH). Of 12,012 digeneans, 88% may engage 33,014 potential SIH species. They have the choice to select one among the available/awaiting 3.5 host species. The motility of vertebrate host and euryxenic flexibility/scope for selection of SIH species has increased lineage diversification in digeneans. The life cycle of cestodes is divided into aquatic and terrestrial patterns. The former includes (i) oncosphere and (ii) coracidium types and the latter (iii) hexacanth-cysticercoid, (iv) hexacanth-tetrathyridium and (v) hexacanth-cysticercus types. The share for the oncosphere, coracidium and hexacanth types is 17.0, 29.5 and 46.5%, respectively. The staggering fecundity and adoption of the intermediate host in the herbivorous/insectivorous food chain have enriched Taenioidea as the most (2,264) speciose order. Sex specific genes Smed-dmd 1 and macbol have been identified, and neuropeptides and dipeptides are involved in sexualization. Trematodes are unable to parasitize elasmobranchs, as they cannot suck body fluid/blood containing a high level of urea. Relatively higher fecundity supplemented with propagatory multiplication, incorporation of SIH in 88% species, clonal selection in SIH, and euryxenic flexibility and the widest choice for selection of SIH have led to the highest lineage diversification to render digeneans as the most speciose order in Platyhelminthes.
Members of the phylum Echinodermata are among the most familiar marine invertebrates. Forms such as the sea star have become virtually a symbol of sea life. Used in ancient oriental medicine as a source of bioactive compounds, sea cucumbers, sea stars and sea urchins are now used for the extraction and purification of cytotoxic, haemolytic, antiviral, antifungal, antifouling, antimicrobial and even anti-tumoural activities. In addition, of the five extant classes, sea urchins and sea cucumbers are important economic resources for current fishery and aquaculture. Molecular and cell biological techniques described in this book are, on the one hand, indicative of the improvements made over the years and, on the other, stress the need of their further exploitation for the sustainable production of bioactive compounds and their application in biomedicine.
This book is a concise informative elucidation of all aspects of reproduction and development in annelids covering from arenicola to tubifex. Annelids flourish between 4,900 m depth to 2,000 m altitude; some of them occur in unusual habitats like hydrothermal vents and subterranean aquatic system (stigobionts). A few have no gut and acquire adequate nutrients through osmotrophism and/or engaging symbiotic microbes. In the absence of exoskeleton to escape predation, the 17,000 speciose annelids have explored bewildering modes of reproduction; not surprisingly, 42-47% of them are brooders. With 13,000 species, polychaetes are gonochores but some 207 species of them are hermaphrodites. Clitellates are all hermaphrodites; of them, 76 species are parthenogens, of which 56 are earthworms. Regenerative potency of annelids ranges from an organ to an entire worm from a single 'seminal' segment. The head, tail and both together can be regenerated 21, 42 and 20 times, respectively. However, the potency is limited to ~1% of polychaetes and < 2% of oligochaetes. In oligochaetes, the chloragogue temporally separates regeneration and reproduction but sedentary polychaetes undertake them together at the reduced reproductive output. Only 79 polychaete and 111 oligochaete species have the potency for clonal reproduction. Within families, the potency ranges from 2% in spionids to 54% in naidids. Epitoky, a spectacular and unique phenomenon, involves the transformation from benthic to meroplanktonic reproductive morphism. It occurs in 106 errant polychaete species. The larger glycerides, nereidids and eunicids use muscular energy to climb < 50 m vertical distance. But the small phyllodocids and cteniodrilids may reduce buoyancy to climb 1,000-4,000 m vertical distance. Heterogamatic sex determination is reported to occur only in six polychaete species, although karyotype is known for 83 annelid species. In temperate polychaetes, a dozen neuroendocrines, arising mostly from the 'brain' regulates reproductive cycle. A complete chapter devoted to vermiculture, (i) recognizes the fast-growing candidate species, (ii) distinguishes 'layers' from 'brooders', (iii) indicates that the harvest of oligochaetes may reduce the input of nitrogenous fertilizer in the ricefield, and (iv) explores the scope for increasing wealth from waste.
Recent research has focused attention on the importance of intrinsic antiviral immunity, i.e. immunity mediated by factors that are constitutively expressed in many cells. In this volume, leading experts provide a comprehensive overview of this relatively new and rapidly evolving field. They cover intrinsic proteinaceous antiviral immune effectors, such as the APOBEC3 and TRIM protein families as well as Tetherin and SAMHD1, which were initially discovered by researchers studying HIV-1. Furthermore, the role of RNA interference in antiviral defense in plants and invertebrates, as well as the interplay between microRNAs and viruses in mammalian cells, are analysed. One chapter discusses how intrinsic immunity and viral countermeasures to intrinsic immune effectors drive both pathogen and host evolution, and finally the emerging evidence that DNA damage response proteins restrict infection by DNA viruses is highlighted. "
Biology of Termites, a Modern Synthesis brings together the major advances in termite biology, phylogenetics, social evolution and biogeography. In this new volume, David Bignell, Yves Roisin and Nathan Lo have brought together leading experts on termite taxonomy, behaviour, genetics, caste differentiation, physiology, microbiology, mound architecture, biogeography and control. Very strong evolutionary and developmental themes run through the individual chapters, fed by new data streams from molecular sequencing, and for the first time it is possible to compare the social organisation of termites with that of the social Hymenoptera, focusing on caste determination, population genetics, cooperative behaviour, nest hygiene and symbioses with microorganisms. New chapters have been added on termite pheromones, termites as pests of agriculture and on destructive invasive species.
Echinoderms and prochordates occupy a key position in vertebrate evolution. The genomes of sea urchin share 70% homology with humans. Researches on cell cycle in sea urchin and phagocytosis in asteroids have fetched Nobel Prizes. In this context, this book assumes immense importance. Echinoderms are unique, as their symmetry is bilateral in larvae but pentamerous radial in adults. The latter has eliminated the development of an anterior head and bilateral appendages. Further, the obligate need to face the substratum for locomotion and acquisition of food has eliminated their planktonic and nektonic existence. Egg size, a decisive factor in recruitment, increases with decreasing depths up to 2,000-5,000 m in lecithotrophic asteroids and ophiuroids but remains constant in their planktotrophics. Smaller (< 18 mm) ophiuroids do not produce a lecithotrophic eggs but larger (> 110 mm) asteroids generate planktotrophic eggs only. Publications on sex ratio of echinoderms indicate the genetic determination of sex at fertilization but those on hybridization, karyotype and ploidy induction do not provide evidence for heterogametism. But the herbivorous echinoids and larvacea with their gonads harboring both germ cells and Nutritive Phagocytes (NPs) have economized the transportation and hormonal costs on gonadal function. Despite the amazing potential just 2 and 3% of echinoderms undergo clonal reproduction and regeneration, respectively. Fission is triggered, when adequate reserve nutrients are accumulated. It is the most prevalent mode of clonal reproduction in holothuroids, asteroids and ophiuroids. However, budding is a more prevalent mode of clonal reproduction in colonial hemichordates and urochordates. In echinoderms, fission and budding eliminate each other. Similarly, autoregulation of early development eliminates clonal reproduction in echinoids and solitary urochordates. In pterobranchs, thaliaceans and ascidians, the repeated and rapid budding leads to colonial formation. Coloniality imposes reductions in species number and body size, generation time and life span, gonad number and fecundity as well as switching from gonochorism to simultaneous hermaphorditism and oviparity to ovoviviparity/viviparity.
This book presents the latest information on canine parasites with zoonotic potential, to help avoid human infections. Compiled by international specialists, it covers protozoa, ectoparasites and helminth species of clinical importance in dogs, as well as the state of the art in diagnosis, preventive measures and potentially necessary treatment schemes. Dogs are commonly kept in families around the world and can predispose their human companions to disease. Updating and deepening insights from other specialist literature, the book is intended for practitioners and scientists alike. It also offers practical guidance for veterinary and human physicians and highlights unexplored research areas, making it a valuable resource for students and educated non-experts with an interest in parasitology, infectiology and zoonotic pet diseases.
This richly illustrated book presents the diversity and natural history of sea snail groups. By integrating aspects of morphology, ecology, evolution and behaviour, it describes how each group copes with problems of defence, locomotion, nutrition, reproduction and embryonic development. First come general characteristics of the Mollusca, to which snails belong; and next, characteristics by which snails (Gastropoda) differ from other molluscs. Then a broad, panoramic view of all major sea snail groups, from the primitive to the more advanced, is presented, including both the more abundant and some remote ones of special interest. In detailing primitive sea snails, first limpets (Patellogastropoda) are described, followed by brush snails (Vetigastropoda: top-shells, turbans and allies) and nerites (Neritimorpha), a small group with remarkably high variation in shell colour and in habitats. In looking at advanced-snails (Caenogastropoda), it details the herbivorous grazers and filter-feeders and the many voracious predators, some which use venomous darts. The book also covers sea slugs (Opisthobranchia), which have shifted from mechanical to chemical defence; some are herbivores, some use their food to harness solar energy, others are predators that gain stinging cells and poisonous compounds from their food. In addition, readers will learn about aspects of sea snails in human culture, including use as sacred artefacts and objects of magic and money, as a source of the royal and sacred dyes of purple and blue and as holy ceremonial trumpets. The text, in which scientific terms are accompanied by parallel common ones, is accompanied by over 200 illustrations (mostly in colour). This comprehensive, insightful portrait of sea snails will appeal to marine biologists, zoology lecturers and students, biology teachers, field-school instructors, nature reserve wardens, amateur naturalists, as well as to lecturers and learners of human culture.
The first International Conference on Horseshoe Crab's Conservation conducted at Dowling College, USA, (2007) and it's proceedings published by Springer in 2009, prompted the continued research and conservation efforts presented at subsequent conferences and colloquium in Hong Kong, Taiwan, (2011); San Diego, CA, (2014), (CERF); Japan, Sasebo (2015) and an accepted inclusion for a special session on Horseshoe Crabs at the 2017 CERF Conference held in Providence, RI, USA. All these aforementioned conferences contributed manuscripts, posters, workshop "position papers", and oral presentations the majority of which have not been published in total. In 2015, Carmichael et al. had published by Springer the majority of manuscripts from the 2011 Hong Kong / Taiwan conference. However, workshop results and all subsequent presentations and workshops were not. The Japan conference presented over 40 papers alone. A collection of all workshop summaries, poster presentations and new manuscript submittals (San Diego, CA; Sasebo, Japan; and Providence, RI) as well as products prepared for the IUCN World Congress in Hawaii, (2016), are included potential contributions for review in this compilation now available for global distribution in this Springer Nature publication.The "Proceedings of International Conferences on the Biology and Conservation of Horseshoe Crabs", thus contains over 50 manuscripts and a diversified collection of documents, photos and memorabilia covering all four of the horseshoe crab species globally: their biology, ecology evolution, educational, and societal importance. This book exposes the impacts that humans have imposed on all four of these species, revealing through the coordinated effort of horseshoe crab scientists with the IUCN, of the worldwide need for a clear conservative effort to protect these paleo- survival organisms from a looming extinction event. Biologists, conservationists, educators, and health professionals will all welcome this book not only for exploration of its pharmacological interest, but also for the mystery of their longevity. This book also clarifies the future research needs and the conservation agenda for the species worldwide. Anyone working or studying estuaries on a global scale, will need to obtain this seminal work on horseshoe crabs.
Fourteen informative papers dealing with their DNA, species interactions, adventiveness, host specificity, potential as boi-contol agents of weeds, chemical control, behaviour, their role in fungal pathogen epidemiology, influence in forests and on ornamentals, collecting and mounting techniques and their interaction with crops are presented here. This is an extensive and valuable contribution to eriophyoid science and a must for present and future researchers in this field.
"Cephalopod Culture "is the first compilation of research on the culture of cephalopods. It describes experiences of culturing different groups of cephalopods: nautiluses, sepioids ("Sepia officinalis," "Sepia pharaonis," "Sepiella"" inermis," "Sepiella japonica"" Euprymna hyllebergi," "Euprymna tasmanica"), squids ("Loligo" "vulgaris," "Doryteuthis opalescens," " Sepioteuthis"" lessoniana") and octopods ("Amphioctopus aegina," "Enteroctopus megalocyathus," "Octopus maya," "Octopus"" mimus," "Octopus minor," "Octopus vulgaris," "Robsonella fontaniana"). It also includes the main conclusions which have been drawn from the research and the future challenges in this field. This makes this book not only an ideal introduction to cephalopod culture, but also a valuable resource for those already involved in this topic.
The Purpose of this book is to provide a helpful reference for invertebrate pathologist, virologists, and electron microscopists on invertebrate viruses. Investigators from around the world have shared their expertise in order introduce scientists to the exciting advances in invertebrate virology.
This book provides updated and comprehensive information on the effective functioning of earthworms used alone or in combination with other biological systems/microbes, as well as factors affecting the process and performance of vermiremediation under a range of conditions. It also compares earthworm assisted vermifiltration with other conventional biochemical methods. Presenting cutting-edge research on the earthworm assisted remediation of industrial and municipal effluents and sludges, along with its role in solid waste management (SWM), the book will benefit readers from the research community and industrial sector alike, familiarizing them with the latest remediation techniques for wastewater and different types of solid waste.
This book is a concise informative elucidation of all aspects of reproduction and development in annelids covering from arenicola to tubifex. Annelids flourish between 4,900 m depth to 2,000 m altitude; some of them occur in unusual habitats like hydrothermal vents and subterranean aquatic system (stigobionts). A few have no gut and acquire adequate nutrients through osmotrophism and/or engaging symbiotic microbes. In the absence of exoskeleton to escape predation, the 17,000 speciose annelids have explored bewildering modes of reproduction; not surprisingly, 42-47% of them are brooders. With 13,000 species, polychaetes are gonochores but some 207 species of them are hermaphrodites. Clitellates are all hermaphrodites; of them, 76 species are parthenogens, of which 56 are earthworms. Regenerative potency of annelids ranges from an organ to an entire worm from a single 'seminal' segment. The head, tail and both together can be regenerated 21, 42 and 20 times, respectively. However, the potency is limited to ~1% of polychaetes and < 2% of oligochaetes. In oligochaetes, the chloragogue temporally separates regeneration and reproduction but sedentary polychaetes undertake them together at the reduced reproductive output. Only 79 polychaete and 111 oligochaete species have the potency for clonal reproduction. Within families, the potency ranges from 2% in spionids to 54% in naidids. Epitoky, a spectacular and unique phenomenon, involves the transformation from benthic to meroplanktonic reproductive morphism. It occurs in 106 errant polychaete species. The larger glycerides, nereidids and eunicids use muscular energy to climb < 50 m vertical distance. But the small phyllodocids and cteniodrilids may reduce buoyancy to climb 1,000-4,000 m vertical distance. Heterogamatic sex determination is reported to occur only in six polychaete species, although karyotype is known for 83 annelid species. In temperate polychaetes, a dozen neuroendocrines, arising mostly from the 'brain' regulates reproductive cycle. A complete chapter devoted to vermiculture, (i) recognizes the fast-growing candidate species, (ii) distinguishes 'layers' from 'brooders', (iii) indicates that the harvest of oligochaetes may reduce the input of nitrogenous fertilizer in the ricefield, and (iv) explores the scope for increasing wealth from waste.
On rocky coastlines, receding tides leave standing pools that have long held a fascination for the amateur seashore naturalist, revealing glimpses of colourful and curious marine plants and animals. Animal diversity is far greater in the sea than in terrestrial or freshwater habitats, and the hugely varied fauna of rock pools reflects that fact. Rock pools also undergo dramatic shifts in temperature, salinity and pH, making such habitats crucibles of adaptation and change. This Naturalists' Handbook offers a comprehensive introduction to this captivating world, with chapters covering rock-pool ecology, seaweeds, animals, identification and guidelines for possible fieldwork and further study. Also presented are detailed keys to all the main groups likely to be encountered when rockpooling around Britain and Ireland - from sea squirts to chitons, from anemones to sea spiders, from amphipods to fishes. Rock pools is an indispensable tool in discovering these kaleidoscopic habitats and their multitudinous inhabitants.
This book consists of a series of papers that help to unravel the taxonomy of the phylum Brachiopoda and describe associated marine communities in the Levant. These faunas inhabited shallow shelf environments near the boundary of the Indo-African and Tethyan faunal realms near the Jurassic equator along the southern Tethyan margin. This research is part of a long term project that aims to delineate the distribution of brachiopods across faunal realm boundaries and reconstruct the biogeographic history of the region. The work provides a more detailed analysis of the endemism that is characteristic of the faunas of northern Sinai, the Negev and Jordan, and will also aid in the construction of a biogeographic framework for Jurassic strata in the Middle East. It represents an important contribution to our knowledge of the evolution of modern marine communities because their roots lie in the ecological diversifications of the Jurassic.
Taxonomy and Geographic Distribution. 1. Tenagodrilus musculus g.n., sp.n., a New Genus and Species of Lumbriculidae (Clitellata) from a Temporary Pond in Alabama, USA; M. Eckroth, R.O. Brinkhurst. 2. Kathrynella, a New Oligochaete Genus from Guyana; P. Omodeo. 3. Oligochaetes (Nididae, Tubificidae, Opistocystdae, Enchytraeidae, Sparganophilidae and Alluroididae) of Guyana; D.F. Stacey, K.A. Coates. 4. Species Separation and Identification in the Enchytraeidae (Oligochaeta, Annelida): Combining Morphology and General Protein Pattern; R. Schmelz. Distribution, Abundance and Habitat Types. 5. Naidids and Other Oligochaetes of Italy; A. di Chiara Paoletti, Sambugar. 6. The Distribution of Oligochaeta on an Exposed Rocky Shore in South East Ireland; B. Healy. 7. Oligochaeta and Aphanoneura in Ancient Lakes: a Review; P. Martin. 8. Distribution Patterns of Aquatic Oligochaetes Inhabiting Watercourses in the North-Western Iberian Peninsula; E. Martinez-Ansemil, R. Collado. 9. The Influence of Water Movement on the Distribution of Oligochaetes; T.D. Slepukhina. 10. Oligochaeta of Lake Taimyr: a Preliminary Survey; T. Timm. 11. Influence of Grain Size on the Distribution of Tubificid Oligochaetes; G. Sauter, H. Gude. 12. Investigations of Oligochaete Community Structure in Different Habitats of a River Marsh Near Hamburg; R. Grimm. 13. Long-Term Changes in Oligochaete Communities in Lake Ladoga; T. Slepukhina. 14. Oligochaetes in the Southern Basin of the Venetian Lagoon: Community Composition, Species Abundance Biomass and Dispersion Pattern; S. Casellato. Population Dynamics. 15. Seasonal Dynamics of Aufwuchs Naididae (Oligochaeta) on Phragmites australis in a Eutrophic Lake; B. Lohlein. 16. Age, Stage and Size Structure as Population State Variables for Tubifex tubifex (Oligochaeta, Tubificidae); A. Pasteris, et al. 17. Oligochaete Species and their Biomass as a Source of Fish Food in Hungarian Rice Fields; A. Szito. 18. Intermediate Host Specificity of Caryophllaeus laticeps (Pallas) in Swedish Tubificid Oligochaetes and Population Dynamics of the Parasite in its Final Host the Bream, Abramis brama (L.) in Lake Malaren; G. Milbrink. 19. Energy Budget of Oligochaeta and its Connection with the Primary Production of a Reservoir; K. Jenderedjian. 20. Production and Population Dynamics of Tubifex tubifex in the Profundal Zone of a Freshwater Reservoir in N. Italy; C. Bonacina, et al. Pollution Studies. 21. Superficial and Hyporheic Communities as Indicators of Pollution and Water Exchange in the River Moselle (France); M. Lafont, et al. 22. Reversal of Eutrophication in Four Swiss Lakes; Evidence from Oligochaete Communities; C. Lang, O. Reymond. 23. A Comparison of Two Tubificid Oligochaete Species as Candidates for Sublethal Bioassay Tests Relevant to Subtropical and Tropical Regions; M. Marchese, R.O. Brinkhurst. 24. Oligochaetes in a Long Term Eutrophication Experiment; P.F.M. Verdonschot. Anthropogenic Impacts on Oligochaete Communities in the Mouth of the Neva; N.P. Finogenova. 26. Upstream and Downstream Movement of Macrofauna (with Special Referenc
Recent research on skin immunity and the skin microbiome reveals the complexity of the skin and its importance in the development of immunity against arthropod-borne diseases. In diseases such as malaria, borreliosis, leishmaniasis, trypanosomiasis, etc., the skin interface has been shown as an essential site for pathogens to hide from the immune system, and as a potential site of persistence. Only very few vaccines have been successfully developed so far against these diseases, likely because of an insufficient understanding on the development of skin immunity against pathogens. Skin and Arthropod Vectors expands our knowledge on the role of the skin interface during the transmission of arthropod-borne diseases and particularly its immunity. This work may support researchers who strive for developing more efficient diagnostic tools and vaccines. It also gives scientists and advanced students working in related areas a better insight on how humans and animals are attractive to arthropods to develop better repellents, or to set up transgenic arthropods.
Protozoa may be found in almost every aquatic habitat, each containing dozens of species. The diversity can provide invaluable insights into the nature of the habitat. Protozoa can thus be used to illustrate biological principles. This colour guide makes the identification of individual protozoa easily accessible to students and professionals and provides information on protozoan communities found in different environments by means of a wealth of colour photomicrographs supported by original and detailed line drawings and concise text. The guide has been welcomed by professional practitioners, researchers and instructors, by graduate, undergraduate and secondary level students, in a wide range of disciplines, for its clarity in providing a logical system for learning and recognition, the first step towards understanding and using the protozoan community as a biological indicator of environmental change, pollution and contamination.
This textbook provides a comprehensive, reliable and practical guide to the dissection and parasitological examination of marine fish and cephalopods. The first part provides a general introduction, presenting basic information on: parasitology, ecology of the marine environment, history and methods of fisheries and aquaculture, as well as the ecology of marine fish and cephalopods and the impact of parasites on hosts. In turn, the second part provides general information on the morphology and anatomy of marine fish and cephalopods using the example of abundant morphotypes (including e.g. habitus photos of the body cavity and internal organs). The third part covers the relevant parasitic groups, their ecology (e.g. lifecycles, transmission), related diseases, and detection. The fourth part, a comprehensive methods section, provides essential protocols and applications of common dissection methods (for roundfish, flatfish and cephalopods) and stomach content analyses, as well as parasite preservation, preparation and molecular identification. Basic calculations of the most common infection and ecological parameters are also introduced. The book's fifth and final part provides information on health risks associated with fish and cephalopod consumption, as well as the prevention of human infection through the correct handling and processing of fish samples. The appendix provides e.g. blank sheets for recording fish dissections and parasitological examinations.
This book aims at providing students and researchers an advanced integrative overview on zooplankton ecology, covering marine and freshwater organisms, from microscopic phagotrophic protists, to macro-jellyfishes and active fish larvae. The first book section addresses zooplanktonic organisms and processes, the second section is devoted to zooplankton spatial and temporal distribution patterns and trophic dynamics, and the final section is dedicated to emergent methodological approaches (e.g., omics). Book chapters include comprehensive synthesis, observational and manipulative studies, and sediment-based analysis, a vibrant imprint of benthic-pelagic coupling and ecosystem connectivity. Most chapters also address the impacts of anticipated environmental changes (e.g., warming, acidification).
Atlas of Marine Invertebrate Larvae, Second Edition covers the origins and history of marine larval science, contemporary state-of-the-art approaches to larval development and biology, and the highest-quality images and schematics showing the broadest diversity of marine larvae in the animal tree of life. This book illustrates larval body plans, the anatomy of their organ systems (muscular, sensory, digestive), including distinct ciliation patterns that facilitate swimming, and the complex metamorphic changes they undergo between different larval and growth stages. Each chapter contains in-text references that direct readers to both historical and contemporary research on the forms, functions, behaviors and biogeographical distributions of marine larvae.This book is a valuable and foundational resource for biologists across various disciplines, including biodiversity, biogeography, and developmental biology. Ecologists, taxonomists, oceanographers, and environmental scientists also benefit from the complete coverage of marine larval forms offered by this book. Additionally, the broad scope and phyletic coverage of marine biodiversity presented in this atlas is ideal for students in oceanography and marine biology, animal development, biological oceanography and invertebrate zoology.
Sponges (phylum Porifera) are known to be very rich sources for bioactive compounds, mainly secondary metabolites. Main efforts are devoted to cell- and mariculture of sponges to assure a sustainable exploitation of bioactive compounds from biological starting material. These activities are flanked by improved technologies to cultivate bacteria and fungi which are associated with the sponges. It is the hope that by elucidating the strategies of interaction between microorganisms and their host (sponge), by modern cell and molecular biological methods, a more comprehensive cultivation of the symbiotic organisms will be possible. The next step in the transfer of knowledge to biotechnological applications is the isolation, characterization and structural determination of the bioactive compounds by sophisticated chemical approaches. |
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