Download or read book The Bashford Dean Memorial Volume written by Eugene Willis Gudger and published by . This book was released on 1930 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Bashford Dean Memorial Volume Gregory W K Memorial of Bashford Dean written by Bashford Dean and published by . This book was released on 1930 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bulletin of the Bureau of Fisheries written by and published by . This book was released on 1940 with total page 942 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Preliminary Report on the Life History of the Common Shrimp Penaeus Setiferus Linn written by Frank Walter Weymouth and published by . This book was released on 1933 with total page 922 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bulletin of the United States Bureau of Fisheries written by United States. Bureau of Fisheries and published by . This book was released on 1912 with total page 954 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fishery Bulletin written by and published by . This book was released on 1983 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bulletin of the United States Bureau of Fisheries written by and published by . This book was released on 1933 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Cyclostomata written by G. Tandler and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 307 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Archaic Fishes written by Eugene Willis Gudger and published by . This book was released on 1930 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Marine Fisheries Review written by and published by . This book was released on 2012 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Bashford Dean Memorial Volume Smith B G The anatomy of the frilled shark Chlamydoselachus anguineus Garman written by Eugene Willis Gudger and published by . This book was released on 1942 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The reproduction and development of sharks skates rays and ratfishes written by Leo S. Demski and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume had its origin in a symposium on the Reproduction and Development of Cartilaginous Fishes that was held at the annual meetings of the American Elasmobranch Society and the American Society of Ichthyologists and Herpetologists in Charleston, South Carolina in 1990. The cartilaginous fishes, class Chondrichthyes, are a large and diverse group of fishes that include approximately 900 to 1100 living species of sharks, skates, rays and ratfishes. Throughout their history, which dates back at least 400 million years, they have been a successful major component of the marine ecosystem. The chondrichthyan fishes occupy a pivotal position in comparative and evolutionary studies of vertebrate reproduction and development. They are the oldest surviving group of jawed vertebrates and they possess both the adult vertebrate Bauplan and the vertebrate program of embryonic development. The major features of the female reproductive system, including its embryonic origin, structure, physiological function, and biochemistry, apparently were established early in vertebrate evolution and are fully developed in chondrichthyan fishes. These features of the female reproductive system have been retained during the evolution of the other classes of vertebrates. Much the same can be said for the male reproductive system. Moreover, viviparity, placental nourishment of developing embryos, and the hormonal regulation of these events made an initial appearance in this group. The 22 articles presented in this volume bring together a wide variety of complementary research by investigators from seven countries, allowing us to broaden the scope and implications of our studies while identifying opportunities for future research. The appearance of a volume on the reproduction and development of cartilaginous fishes is quite opportune. The continued existence of these fishes, which survived the great extinction events of Earth's history, is now threatened by overexploitation unless immediate steps for their conservation are undertaken. Knowledge of their reproduction and development not only is an end in itself, but is of critical importance in devising successful conservation and resource management strategies.

Download or read book Bibliography of Fossil Vertebrates 1928 1933 written by Charles Lewis Camp and published by . This book was released on 1940 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Neural Crest and Neural Crest Cells in Vertebrate Development and Evolution written by Brian K. Hall and published by Springer Science & Business Media. This book was released on 2008-12-28 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: A presentation of all aspects of neural crest cell origins (embryological and evolutionary) development and evolution; neural crest cell behavior (migration) and anomalies (neurocristopathies and birth defects) that arise from defective neural crest development. The treatment of development will include discussions of cellular, molecular and genetic aspects of the differentiation and morphogenesis of neural crest cells and structures derived from neural crest cells. The origins of the neural crest in embryology will be discussed using the recent information on the molecular basis of the specification of the neural crest. Also presented are the advances in our understanding of the evolution of jaws from studies on lampreys and of the neural crest from studies on ascidians and amphioxus.

Download or read book Report of the Bureau of Commercial Fisheries Biological Laboratory Gulf Breeze Florida Fiscal Year 1966 written by Biological Laboratory (Gulf Breeze, Fla.) and published by . This book was released on 1967 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book North Carolina Coastal Oceanography Symposium written by Robert Y. George and published by . This book was released on 1989 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reproductive Biology and Phylogeny of Chondrichthyes written by William C. Hamlett and published by CRC Press. This book was released on 2011-10-14 with total page 573 pages. Available in PDF, EPUB and Kindle. Book excerpt: Internal fertilization is universal in chondrichthyan fishes and, as such, requires a suite of biological activities, including behavioral, morphological and physiological mechanisms, to ensure successful copulation and fertilization. This volume correlates available data and ideas concerning the development, reproductive morphology, function, and