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Elasmobranchii. --- Fishes --- Fishes --- Elasmobranchii. --- Poissons --- Poissons --- Anatomy. --- Dissection. --- Anatomie. --- Dissection. --- University of Toronto.
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Chondrichthyes. --- Teeth. --- Odontography --- Odontology --- Mouth --- Dentistry --- Dentition --- Cartilaginous fishes --- Chondrichthyan fishes --- Chondrichthyans --- Elasmobranch fishes --- Elasmobranchi --- Elasmobranchiate fishes --- Elasmobranchii --- Elasmobranchiomorphi --- Elasmobranchs --- Plagiostomi --- Selachian fishes --- Selachians --- Selachii --- Selachimorpha --- Fishes
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Chondrichthyes --- Cartilaginous fishes --- Chondrichthyan fishes --- Chondrichthyans --- Elasmobranch fishes --- Elasmobranchi --- Elasmobranchiate fishes --- Elasmobranchii --- Elasmobranchiomorphi --- Elasmobranchs --- Plagiostomi --- Selachian fishes --- Selachians --- Selachii --- Selachimorpha --- Fishes --- Physiology. --- Anatomy.
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Chondrichthyes --- Cartilaginous fishes --- Chondrichthyan fishes --- Chondrichthyans --- Elasmobranch fishes --- Elasmobranchi --- Elasmobranchiate fishes --- Elasmobranchii --- Elasmobranchiomorphi --- Elasmobranchs --- Plagiostomi --- Selachian fishes --- Selachians --- Selachii --- Selachimorpha --- Fishes --- Physiology. --- Ecology. --- Anatomy.
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Sharks --- Chondrichthyes --- Cartilaginous fishes --- Chondrichthyan fishes --- Chondrichthyans --- Elasmobranch fishes --- Elasmobranchi --- Elasmobranchiate fishes --- Elasmobranchii --- Elasmobranchiomorphi --- Elasmobranchs --- Plagiostomi --- Selachian fishes --- Selachians --- Selachii --- Selachimorpha --- Fishes
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Primitive fishes are a relatively untapped resource in the scientific search for insights into the evolution of physiological systems in fishes and higher vertebrates. Volume 26 in the Fish Physiology series presents what is known about the physiology of these fish in comparison with the two fish groups that dominate today, the modern elasmobranchs and the teleosts. Chapters include reviews on what is known about cardiovascular, nervous and ventilatory systems, gas exchange, ion and nitrogenous waste regulation, muscles and locomotion, endocrine systems, and reproduction. Editors prov
Fishes --- Living fossils. --- Physiology. --- Evolution. --- Fossils, Living --- Organisms --- 597.2 --- 597.3 --- 597.4 --- 591.1 --- 597.3 Elasmobranchii (Plagiostomata). Cartilaginous fishes. Selachii. Sharks etc. --- Elasmobranchii (Plagiostomata). Cartilaginous fishes. Selachii. Sharks etc. --- 597.2 Cyclostomata (Marsipobranchii). Lampreys. Hagfishes --- Cyclostomata (Marsipobranchii). Lampreys. Hagfishes --- 591.1 Animal physiology --- Animal physiology --- 597.4 Ganoidei --- Ganoidei
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Saltwater fishes --- identification. --- identification --- taxonomy --- Rays (fish) --- Sharks --- Mediterranean Sea --- Black Sea --- 597.3 --- 639.2 <262> --- Fishing. Fisheries--Black Sea --- 597.3 Elasmobranchii (Plagiostomata). Cartilaginous fishes. Selachii. Sharks etc. --- Elasmobranchii (Plagiostomata). Cartilaginous fishes. Selachii. Sharks etc. --- 639.2 <262> Fishing. Fisheries--Middellandse Zee --- Fishing. Fisheries--Middellandse Zee --- Chondrichthyes --- 639.2 <262.5>
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Shark conservation and management is often hindered by a lack of basic biological information for most species. An understanding of the age structure and growth dynamics of a population is important for effective conservation and management because this information is often utilized for determination of natural mortality and longevity. Ultimately age and growth information is used for calculation of vital rates in population models. Over the last few years there have been advances in the quantitative study of age and growth of chondrichthyan fishes. Novel approaches to ageing of various chondrichthyan fishes continue to arise. This volume is a collection of papers on several of these topics that include new hard parts (e.g. caudal thorns) for assessments of age, new techniques for validation (e.g. bomb radiocarbon) and reexaminations of previous age and growth models. This volume also contains papers on the importance of assessing the precision and accuracy of statistical formulas, analyses, and models that are used in age and growth studies. There is currently a great deal of research being conducted, some of which is truly "pushing the envelope," in attempts to assess the life history parameters of numerous chondrichthyan fishes.
Chondrichthyes. --- Fishes. --- Fish --- Pisces --- Aquatic animals --- Vertebrates --- Fisheries --- Fishing --- Ichthyology --- Cartilaginous fishes --- Chondrichthyan fishes --- Chondrichthyans --- Elasmobranch fishes --- Elasmobranchi --- Elasmobranchiate fishes --- Elasmobranchii --- Elasmobranchiomorphi --- Elasmobranchs --- Plagiostomi --- Selachian fishes --- Selachians --- Selachii --- Selachimorpha --- Fishes
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Chondrichthyes are a group of cartilaginous fish, where we have sharks, rays, and chimeras as members. This group plays an important role in aquatic ecology, as they act as predators throughout the food chain (e.g., sharks). However, many populations of Chondrichthyes are threatened by several factors (increased direct fishing, high mortality rate as accompanying fauna, marine pollution, habitat destruction, etc.). These declines are evident in many parts of the world and have come to the attention of scientists, conservation organizations, the media, and the general public. Fisheries legislation regulating international fisheries markets has been amended to provide greater protection for this group along with other species of fish. However, little is known about these species, which reinforces the importance of studies in order to have a better understanding of the elasmobranch stocks, as well as to identify the influences of the anthropic action of fishing. In response to knowledge on the low sustainability of cartilaginous fish fisheries on a global scale, FAO has developed an international plan of action for the management and conservation of these fish, with the aim of developing and implementing national plans of action to ensure management and conservation of these stocks, having as main recommendation the collection of information about the Chondrichthyes, especially the sharks. Even so, this group is little known in terms of biodiversity, ecology, behavior, and a host of other characteristics relevant to this taxon, which is very worrying. Chondrichthyes - Multidisciplinary Approach attempts to portray to the readers up-to-date information on Chondrichthyes to promote an overview of the current taxon, serving as an indispensable source of access to more accurate and detailed information on shark rays and chimeras.
Chondrichthyes. --- Cartilaginous fishes --- Chondrichthyan fishes --- Chondrichthyans --- Elasmobranch fishes --- Elasmobranchi --- Elasmobranchiate fishes --- Elasmobranchii --- Elasmobranchiomorphi --- Elasmobranchs --- Plagiostomi --- Selachian fishes --- Selachians --- Selachii --- Selachimorpha --- Fishes --- Life Sciences --- Marine Biology --- Agricultural and Biological Sciences --- Ichthyology
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