Download or read book An Investigation of the Nutritional Condition of Low Latitude Fish Larvae written by Martha J. Hauff and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Coral reef fishes are typically characterized by a protracted pelagic larval dispersal period, which creates the potential for connectivity of geographically discrete populations. The degree to which connectivity occurs is affected not only by whether larvae are transported from one reef to another, but also by whether they reach a settlement site in adequate nutritional condition to survive the juvenile period and beyond. It is possible that larvae with different dispersal trajectories (i.e. those that are retained close to shore as compared to those that travel great distances) may differ in their condition levels, and thereby, the extent to which they serve to replenish local populations. Condition levels during larval life, and their relationship to environmental factors, are thus important determinants of regional demography and patterns and scales of population connectivity. In the work presented here, larval fish condition was measured using two different indices: RNA/DNA ratios (R/Ds) and otolith-derived growth measurements. R/Ds are utilized frequently in studies of temperate larval fish ecology, but have only rarely been applied to investigations of low-latitude taxa. The sensitivity of the R/D to variations in prey availability in a tropical/subtropical context was assessed in a laboratory feeding experiment in which larval cobia were subjected to full and reduced (20%) rations. R/Ds were found to respond to reductions of prey availability, and this response was on par with analogous decreases in larval otolith growth. Having established that the R/D can reflect changes in larval food supply in warm water species, the index was used in concert with otolith size and growth to assess the condition of coral reef fish larvae collected in and around the Florida Keys Reef Tract. When nearshore (likely locally retained) and offshore (broadly dispersing) larvae were compared, it was found that, for three of four species examined, nearshore larvae exhibited faster growth and higher R/Ds as compared to their offshore counterparts. An examination of the changes in the distributions of individual condition levels with age (coupled with measurements of larval fish prey availability) indicated that the observed differences in mean condition were likely due to predation-related selective loss of the lowest condition larvae in nearshore waters. To identify possible molecular correlates of larval survival and condition, single nucleotide polymorphisms (SNPs) were genotyped in nearshore and offshore-collected larvae of a common Caribbean reef fish, the bluehead wrasse. Results revealed multiple loci that were likely under selection due to association with condition-related traits, and these loci may therefore be relevant to future investigations into gene-mediated physiological determinants of condition. As a whole this dissertation sheds light on both environmental and genetic components of larval coral reef fish condition, and it thereby contributes to our understanding of the processes that govern population connectivity, as well as our ability to manage and protect coral reef resources in a rapidly changing environment.
Download or read book Special Scientific Report written by and published by . This book was released on 1965 with total page 1100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Characterization of Information Requirements for Studies of CO2 Effects written by Margaret R. White and published by . This book was released on 1986 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Importance of Behavior in the Recruitment of Marine Fauna and Flora written by Claire Beatrix Paris and published by Frontiers Media SA. This book was released on 2020-08-05 with total page 131 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 1999 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Antarctic Journal of the United States written by and published by . This book was released on 1989 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solving Complex Ocean Challenges Through Interdisciplinary Research Advances from Early Career Marine Scientists written by Stephanie Brodie and published by Frontiers Media SA. This book was released on 2022-06-01 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Topic Editors Stephanie Brodie, Christopher Cvitanovic, Maria Grazia Pennino, Jon Lopez and André Frainer declare that they are members of the IMBeR (Integrated Marine Biosphere Research) network and IMECaN (Interdisciplinary Marine Early Career Network) and are collaborating with the IMBeR research community.
Download or read book Freshwater Fishes of North America written by Melvin L. Warren Jr. and published by JHU Press. This book was released on 2020-07-14 with total page 934 pages. Available in PDF, EPUB and Kindle. Book excerpt: The highly anticipated second volume of Freshwater Fishes of North America, a monumental, fully illustrated reference that provides comprehensive details on the freshwater fishes of the United States, Canada, and Mexico. When the first volume of Freshwater Fishes of North America was published, it was immediately hailed as the definitive reference in the field. Readers have been fervently awaiting the next volume in this encompassing three-book set ever since. Now complete, volume 2, covering families Characidae to Poeciliidae, is the result of decades of analysis by leading fish experts from universities and research laboratories across North America. Each volume in this authoritative synthesis covers the ecology, morphology, reproduction, distribution, behavior, taxonomy, conservation, and the fossil record of the included North American fish families. The encyclopedic reviews of each family are accompanied by color photographs (nearly 250 in this volume alone), range maps, and artwork created by noted fish illustrator Joseph R. Tomelleri. The result is a rich textual and visual experience that covers everything known about the diversity, natural history, ecology, and biology of North American freshwater fishes. Volume 2 covers the following North American families of fishes: Characidae (Characins) Ictaluridae (North American Catfishes) Ariidae (Sea Catfishes) Heptapteridae (Three-barbeled Catfishes) Osmeridae (Smelts) Esociformes (Esocidae, Pikes and Umbridae, Mudminnows) Percopsidae (Trout-perches) Amblyopsidae (Cavefishes) Aphredoderidae (Pirate Perches) Gadidae (Cods and Cuskfishes) Mugilidae (Mullets) Atherinopsidae (New World Silversides) Beloniformes (Needlefishes and Halfbeaks) Rivulidae (New World Rivulines) Profundulidae (Middle American Killifishes) Goodeidae (Goodeids) Fundulidae (Topminnows) Cyprinodontidae (Pupfishes) Poeciliidae (Livebearers) The chapter authors of Volume 2 are: Gianetta Adams Clyde Barbour Micah Bennett Ricardo Bentancur-R. Peter B. Z. Berendzen Brooks M. Burr Mollie Cashner Robert C. Cashner Bruce B. Collette Matthew Davis Alice F. Echelle Anthony A. Echelle Fernando Galvez Michael Ghedotti Nicholas Gidmark Terry Grande Robert L. Hopkins Lauren M. Kuehne Frank McCormick Norman Mercado-Silva Ann U. O'Connell Martin T. O'Connell Julian D. Olden Claudia Patricia Ornelas-Garcia Mark Sabaj Perez Kyle R. Piller Steven Powers Jacob Schaefer Juan J. Schmitter-Soto Andrew M. Simons Roger A. Tabor Cheryl Thiele Matthew Thomas Melvin L. Warren, Jr. Mark V. H. Wilson
Download or read book Oceanic Abstracts written by and published by . This book was released on 1997-10 with total page 1070 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Journal of Fisheries and Aquatic Sciences written by and published by . This book was released on 2005 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ocean Acidification written by National Research Council and published by National Academies Press. This book was released on 2010-09-14 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ocean has absorbed a significant portion of all human-made carbon dioxide emissions. This benefits human society by moderating the rate of climate change, but also causes unprecedented changes to ocean chemistry. Carbon dioxide taken up by the ocean decreases the pH of the water and leads to a suite of chemical changes collectively known as ocean acidification. The long term consequences of ocean acidification are not known, but are expected to result in changes to many ecosystems and the services they provide to society. Ocean Acidification: A National Strategy to Meet the Challenges of a Changing Ocean reviews the current state of knowledge, explores gaps in understanding, and identifies several key findings. Like climate change, ocean acidification is a growing global problem that will intensify with continued CO2 emissions and has the potential to change marine ecosystems and affect benefits to society. The federal government has taken positive initial steps by developing a national ocean acidification program, but more information is needed to fully understand and address the threat that ocean acidification may pose to marine ecosystems and the services they provide. In addition, a global observation network of chemical and biological sensors is needed to monitor changes in ocean conditions attributable to acidification.
Download or read book A Preliminary Bibliography with KWIC Index on the Ecology of Estuaries and Coastal Areas of the Eastern United States written by Robert Livingstone and published by . This book was released on 1965 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agrindex written by and published by . This book was released on 1995 with total page 1280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spiny Lobster Explorations in the Pacific and Caribbean Waters of the Republic of Panama written by Johnny A. Butler and published by . This book was released on 1965 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1982 with total page 998 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Marine Fish Larvae written by Reuben Lasker and published by University of Washington Press. This book was released on 1981 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: THE LARVAL LIFE AND HISTORY OF MARINE FISHES.
Download or read book Characterization of Information Requirements for Studies of CO2 Effects written by Margaret R. White and published by . This book was released on 1985 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
