Keywords:
Sea urchins.
;
Electronic books.
Type of Medium:
Online Resource
Pages:
1 online resource (736 pages)
Edition:
4th ed.
ISBN:
9780128195697
Series Statement:
Issn Series
URL:
https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=6010979
DDC:
593.95
Language:
English
Note:
Intro -- Sea Urchins: Biology and Ecology -- Copyright -- Contents -- Contributors -- Chapter 1: Phylogeny and classification of echinoids -- 1. Introduction -- 2. Class Echinoidea Leske, 1778 -- 2.1. Stem group Echinoidea (Paleozoic echinoids) -- 2.2. Subclass Perischoechinoidea McCoy, 1849 (possibly paraphyletic) -- 3. Crown group Echinoidea -- 3.1. Subclass Cidaroidea Smith, 1984 -- 3.2. Subclass Euechinoidea Bronn, 1860 -- 3.2.1. Infraclass Aulodonta Jackson, 1912 (= Diadematacea sensu Mongiardino Koch et al., 2018) -- 3.2.2. Infraclass Carinacea Kroh and Smith, 2010 -- 3.2.3. Irregularia Latreille, 1825 -- 3.2.4. Stem group Irregularia -- 3.2.5. Crown group Irregularia -- 3.2.6. Neognathostomata Smith, 1981 -- 3.2.7. Atelostomata von Zittel, 1879 -- 3.2.8. Order Holasteroida Durham and Melville, 1957 -- 3.2.9. Order Spatangoida Agassiz, 1840 -- 4. Conclusion -- References -- Further reading -- Chapter 2: Sea urchin life-history strategies -- 1. Concepts -- 2. Habitats and life-history strategies of sea urchins -- 2.1. The deep sea -- 2.2. Antarctic seas -- 2.3. Tropical reef flats -- 2.4. Kelp forests -- 2.5. Tropical seagrass beds -- 3. Conclusions -- Acknowledgments -- References -- Further reading -- Chapter 3: Gametogenesis in regular sea urchins: Structural, functional, and molecular/genomic biology -- 1. Sea urchin gametogenesis: Structural microenvironment -- 2. Sea urchin gametogenesis: Annual structural variation -- 2.1. The dual functionality of sea urchin gonads: Gametogenesis of germinal cells and nutrient storage in somatic NPs -- 2.2. Nutritive phagocytes in ovaries and testes -- 2.3. Intergametogenesis and NP phagocytosis in S. droebachiensis -- 2.4. Pregametogenesis and NP renewal in S. droebachiensis -- 2.5. Gametogenesis and NP utilization in S. droebachiensis.
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2.6. End of gametogenesis, NP exhaustion, and spawning in S. droebachiensis -- 3. Sea urchin gametogenesis: Annual molecular variation -- 3.1. Differentiation and identification of oogonia and spermatogonia -- 3.2. Gamete differentiation including nutrient input (ova) and meiotic division and preparation of gametes for fertilizat ... -- 3.3. Meiosis in oocytes and spermatocytes -- 3.4. Preparation of ova and spermatozoa for fertilization -- 3.5. Recycling NPs and regenerating the gametogenic microenvironment -- 4. Sea urchin gametogenesis: Environmental control -- Acknowledgments -- References -- Further reading -- Chapter 4: Biochemical and energy requirements of gonad development in regular sea urchins -- 1. Cellular energy utilization -- 2. Energy metabolism during development -- 3. Biochemical components of cellular metabolism -- 4. Gonad growth -- 5. Gonad energy metabolism -- 5.1. Protein metabolism -- 5.2. Carbohydrate metabolism -- 5.3. Lipid metabolism -- 5.4. Anaerobic metabolism -- 6. Feeding and metabolism -- 7. Summary -- Acknowledgments -- References -- Chapter 5: Endocrine regulation of regular echinoid reproduction -- 1. Sea urchin gonads -- 2. Exogenous regulation of reproduction -- 2.1. Environmental factors -- 2.2. Endocrine disruptors -- 3. Endogenous regulation of reproduction -- 3.1. Steroids -- 3.1.1. Early studies on sex steroids in the gonads -- 3.1.2. Steroid-converting enzymes in the gonads -- 3.1.3. Sex steroids in the gonads -- 3.1.4. Response to exogenous administration of sex steroids -- 3.2. Protein and peptidergic factors -- 3.3. Catecholaminergic and cholinergic factors -- 4. Mechanisms of regulation -- 4.1. Paracrine -- 4.2. Endocrine -- 5. Gene regulation in reproduction -- 6. Conclusions -- Acknowledgments -- References -- Chapter 6: Larval ecology of echinoids -- 1. Introduction -- 2. Patterns in abundance.
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3. Growth and development -- 4. Mortality and predation -- 5. Feeding -- 6. Swimming behavior and vertical distributions -- 7. Dispersal -- 8. Settlement -- 9. Conclusions -- References -- Chapter 7: Growth and survival of postsettlement sea urchins -- 1. Growth -- 1.1. Introduction -- 1.2. Skeletal composition -- 1.3. Resorption -- 1.4. Natural growth lines -- 1.5. Tagging -- 1.6. Growth models -- 2. Survival -- Acknowledgments -- References -- Further reading -- Chapter 8: Digestive system in regular sea urchins -- 1. Introduction -- 2. Structure and function of the definitive digestive system as a whole -- 2.1. General anatomy -- 2.2. General histology of digestive system -- 2.2.1. Fundamental tissue layers -- 2.2.2. Ossicle-forming scleroblasts in the wall of the digestive system -- 2.2.3. Coelomocytes wandering in the wall of the digestive system -- 2.3. Cell kinetics in the digestive system of regular sea urchins -- 2.4. Passage of food through the digestive system -- 3. Major regions of the regular sea urchin digestive system -- 3.1. Teeth and buccal cavity -- 3.2. Pharynx -- 3.3. Esophagus -- 3.4. Cecum and stomach -- 3.5. Siphonal grooves and siphons -- 3.6. Intestine and rectum -- 3.7. Symbionts in the intestinal lumen -- 3.7.1. Symbiotic bacteria -- 3.7.2. Symbiotic protists -- 3.7.3. Symbiotic metazoans -- 4. Development of the digestive system -- Acknowledgments -- References -- Further reading -- Chapter 9: Ingestion, digestion, and digestibility of regular sea urchins -- 1. Introduction -- 2. Ingestion -- 2.1. Attractants -- 2.2. Stimulants -- 2.3. Deterrents -- 2.4. Environmental conditions -- 2.4.1. Hydrodynamics -- 2.4.2. Light -- 2.4.3. Temperature -- 2.5. Food shape -- 2.6. Food quality -- 2.7. Physiological state -- 2.7.1. Nutritional state -- 2.7.2. Body size -- 2.7.3. Reproductive state -- 3. Digestion -- 3.1. Digestive enzymes.
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3.2. Role of bacteria -- 3.2.1. Digestion -- 3.2.2. Nitrogen fixation -- 3.3. Gut transit time -- 4. Digestibility -- 5. Conclusions -- Acknowledgments -- References -- Further reading -- Chapter 10: Nutrition -- 1. Introduction -- 1.1. Why nutrition? -- 1.2. Nutrition vs dietetics -- 1.3. Historical and contemporary approaches -- 2. Basic considerations in sea urchin nutrition research -- 3. Feed development-Dietary nutrient requirements -- 3.1. Purified, semipurified, and practical ingredients -- 3.2. Physical feed characteristics -- 3.3. Toxins in feed ingredients -- 3.4. Feed management -- 3.4.1. Feed ration -- 3.4.2. Feeding rate -- 3.4.3. Feeding time -- 3.4.4. Feed ration at each feeding period -- 3.4.5. Preexposure/sensitization -- 3.4.6. Group vs individual culture -- 3.5. Outcome assessment -- 3.5.1. Ingestion -- 3.5.2. Digestibility -- 3.5.3. Survival and growth -- 3.5.4. Effect of nutrients on organs -- 3.5.5. Production, production efficiencies, and energetics -- 3.5.6. Functional or physiological metrics -- 3.5.7. Role of gut flora -- 3.5.8. Molecular advances -- 4. Basic nutrient profiles -- 4.1. Protein -- 4.2. Carbohydrate -- 4.3. Lipids -- 4.4. Fiber -- 4.5. Minerals -- 4.6. Vitamins -- 4.7. Feed additives -- 5. Basic applications of feed development -- 6. Summary -- Acknowledgments -- References -- Further reading -- Chapter 11: Carotenoids in sea urchins -- 1. Introduction -- 2. Distribution of carotenoids in sea urchins -- 2.1. Gonad pigments -- 2.2. Sex differences, eggs, and larvae -- 2.3. Gut pigments -- 2.4. Test pigments -- 2.5. Changes during the reproductive cycle -- 2.6. Heritability -- 3. Metabolism of carotenoids in sea urchins -- 3.1. Isomerization -- 4. The effect of dietary carotenoids on gonad color and deposition -- 4.1. Assessing color -- 4.2. Carotenoid deposition -- 5. The role of carotenoids in sea urchins.
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5.1. Egg production and development -- 5.2. Biological functions -- Acknowledgment -- References -- Chapter 12: Sea urchin diseases: Effects from individuals to ecosystems -- 1. Introduction -- 2. Documented diseases -- 3. Effects on individuals -- 3.1. Paramoebiasis -- 3.2. Vibriosis -- 3.3. Bald sea urchin disease -- 4. Effects on populations and ecosystems -- References -- Chapter 13: Immunology in sea urchins -- 1. Introduction -- 1.1. General concepts -- 1.2. Coelomocytes -- 1.3. Phagocytosis -- 1.4. Inflammatory process -- 1.5. Origin of the coelomocytes -- 1.6. Coelomic fluid and coelomocyte concentration -- 1.7. Coelomocytes as biomarkers -- 1.8. Coagulation and encapsulation -- 1.9. The complement system -- 2. Humoral factors -- 2.1. The sea urchin genome and advances in the immune system studies -- References -- Further reading -- Chapter 14: Deep-sea sea urchins -- 1. Taxa characteristic of the deep sea -- 2. Unique morphologies -- 3. Life-history traits: Growth and reproduction -- 4. Nutrition, growth, and reproduction -- 4.1. Food sources, trophic positioning, and nutrient partitioning -- 4.2. Seasonal dietary shifts -- 4.3. Bioerosion of deep-sea corals -- 5. Ecology -- 5.1. Patterns in distribution, abundance, and habitat associations -- 5.2. Predation and competition in the deep sea -- 5.3. Symbionts -- 6. Evolutionary history -- 7. Summary -- Acknowledgments -- References -- Chapter 15: Regular sea urchins as drivers of shallow benthic marine community structure -- 1. Introduction -- 2. Functional evolution of sea urchins and their rise in ecological importance -- 3. Agents of biological disturbance, strong interactors, and drivers of community structure -- 4. Drivers of ecosystem structure and function: Sea grass, coral reef, and kelp forest biome case studies -- 4.1. Sea grass ecosystems -- 4.2. Coral reef ecosystems.
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4.2.1. Ecological impact of D. antillarum: Revelations from mass mortality.
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