Download or read book Hermaphroditism and Mating Systems in Fish written by Tetsuo Kuwamura and published by Springer Nature. This book was released on 2022-12-13 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive review of hermaphroditism in fishes. It focuses on the behavioral ecology of functional hermaphroditism in fishes and discusses its evolution. Approximately 99% of all vertebrate species consist of separate-sex individuals (gonochorists), i.e., pure males and pure females. The other 1% of vertebrate species are hermaphroditic, and almost all of them are fishes. Among hermaphroditic fishes, four major types of hermaphroditism are known: simultaneous (or synchronous) hermaphroditism, protandry (male-to-female sex change), protogyny (female-to-male sex change), and bidirectional sex change (or reversed sex change in protogynous species). The book examines the occurrence of hermaphroditism in relation to phylogeny and mating systems. It also reviews the hypotheses for the evolution of hermaphroditism, and the size-advantage model, which is the main theory for the evolution of sex change, tested in relation to the mating system. The appendix in the last chapter provides an annotated list of hermaphroditic fish species (ca. 500 spp.).

Download or read book Distribution and Sighting Frequency of Reef Fishes in the Florida Keys National Marine Sanctuary written by and published by . This book was released on 2001 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Living Marine Resources of Somalia written by Corinna Sommer and published by Food & Agriculture Org.. This book was released on 1996 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Myths of Mountains and Seas written by Tang YiGuDian and published by Funstory. This book was released on 2020-05-15 with total page 721 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the four seas and eight wastelands, the Mystic Maiden offered up the secret arts of the Mountain and Sea Realm, the Seven Domains of the Nine Prefectures, and the Nine Tripod Commerce. When this cauldron reached ten percent completion, the rain of blood would rain down upon the deities and devils. The River Diagram appeared, as did Luo Shu. The human world was in turmoil. It was rumored that these nine cauldrons were the ones that had gained the world. However, he did not know that the treasures of the nine cauldrons were all in the Mountain Sea Secret Art that was drawn on the cauldron. After that, the nine cauldrons sank into the Luo River, disappearing without a trace. The five paths of the world, the Wonder Gate, the Illusion Dao, the Mountain Sect, the Sea Sect, the Scripture Pavilion, and the five sects' heirs, each had their own secret treasures, all for the sake of obtaining the Mountain Sea secret arts within the nine cauldrons. This fight lasted for thousands of years ...

Download or read book A Review of the Genera and Species of Serranidae Found in the Waters of America and Europe written by David Starr Jordan and published by . This book was released on 1890 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Biology of Blennies written by Robert A Patzner and published by CRC Press. This book was released on 2009-01-05 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Blennies are diverse group of bony fishes found around the globe. Most blennies are small and somewhat difficult to identify, so until recently these fish did not occupy the interests of many ichthyologists and even fewer ecologists. With nearly 900 species, blennies are important members of most coastal marine communities. This book should stimula

Download or read book Kiribati Country Report written by Kim Friedman and published by Pacific Community. This book was released on 2008-01-01 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Otolith Atlas of Southern African Marine Fishes written by Malcolm J. Smale and published by . This book was released on 1995 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book FAO annuaire 1997 written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 1999 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents statistical data on capture production & foreign trade of fishery commodities for all countries & territories worldwide. Recommended in: Walford's Guide to Reference Material.

Download or read book Oceanography and Marine Biology written by R. N. Gibson and published by CRC Press. This book was released on 2005-06-24 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by experts actively engaged in the field, . Oceanography and Marine Biology: An Annual Review explores the physical, chemical, and biological aspects of marine science. An essential reference for researchers and students in all fields of marine science, the text contains analyses on cold sleep sediments, unburnt coal in the marine environment, biofiltration and biofouling on artificial structures in Europe, ecology of rafting in marine ecosystems, effects of globalisation in marine environments, and much more. Its consistent presentation and timely topics make it a perennial favorite among researchers and students in all fields of marine science.

Download or read book Synopsis of Biological Data on the Spottail Pinfish Diplodus Holbrooki Pisces Sparidae written by George H Darcy and published by . This book was released on 1985 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NOAA Technical Report NMFS written by and published by . This book was released on 1984 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Functioning of Ecosystems written by Mahamane Ali and published by BoD – Books on Demand. This book was released on 2012-04-27 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ecosystems present a great diversity worldwide and use various functionalities according to ecologic regions. In this new context of variability and climatic changes, these ecosystems undergo notable modifications amplified by domestic uses of which it was subjected to. Indeed the ecosystems render diverse services to humanity from their composition and structure but the tolerable levels are unknown. The preservation of these ecosystemic services needs a clear understanding of their complexity. The role of the research is not only to characterise the ecosystems but also to clearly define the tolerable usage levels. Their characterisation proves to be important not only for the local populations that use it but also for the conservation of biodiversity. Hence, the measurement, management and protection of ecosystems need innovative and diverse methods. For all these reasons, the aim of this book is to bring out a general view on the biogeochemical cycles, the ecological imprints, the mathematical models and theories applicable to many situations.

Download or read book Marine Fish Culture written by John W. Tucker Jr. and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 755 pages. Available in PDF, EPUB and Kindle. Book excerpt: 4 Water Sources ........................................ 149 Criteria ............................................. 149 Major types .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 . . . . . . . . . . . . Summary ............................................ 152 5 Water Treatment ...................................... 155 Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155 . . . . . . . . . . . . Materials ............................................ 155 Treatment options . . . . . . . . . . . . . . . . . . . . . . . . . . . 156 . . . . . . . . . . . System design ........................................ 169 System monitoring and control . . . . . . . . . . . . . . . . . . . . . 172 . . . . . . . . Environmental considerations .............................. 174 Summary ............................................ 174 6 Culture Units ......................................... 175 Considerations in choosing culture units ...................... 175 Characteristics of culture units . . . . . . . . . . . . . . . . . . . . . 175 . . . . . . . . Applications of culture units .............................. 191 Hatchery design " . . . . . . . . . . . . . . . . . . . . . . . . . . 208 . . . . . . . . . . . Summary ............................................ 210 7 Obtaining Fish for Stocking . ............................. 211 Stock from the wild .................................... 211 Stock from the hatchery ................................. 211 Spermatogenesis (sperm formation) ....................... 232 Oogenesis (egg formation) ............................. 232 Oocyte maturation ................................... 233 Endocrine control of oocyte maturation and ovulation .......... 237 fuduced ovulation . . . . . . . . . . . . . . . . . . . . . . . . . . 238 . . . . . . . . . . Timing and egg quality . . . . . . . . . . . . . . . . . . . . . . . 257 . . . . . . . . . Artificial fertilization ................................. 265 Care of eggs ....................................... 267 Storage of gametes ................. ' .................. 269 Natural ovulation . . . . . . . . . . . . . . . . . . . . . . . . . . 270 . . . . . . . . . . Care of broodfish . . . . . . . . . . . . . . . . . . . . . . . . . . 289 . . . . . . . . . . Egg collection .. . . . . . . . . . . . . . . . . . . . . . . . . . . 290 . . . . . . . . . . fuduced vs natural ovulation ............................ 290 Broodfish adaptability . . . . . . . . . . . . . . . . . . . . . . . . . 291 . . . . . . . . . . Examples ............................................ 291 Genetic considerations . . . . . . . . . . . . . . . . . . . . . . . . . 295 . . . . . . . . . . Hybridization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296 . . . . . . . . . . . . Sex control .......................................... 296 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298 . . . . . . . . . . . . . vi 8 Nutrition of Larval Fish . . . . . . . . . . . . . . . . . . . . . . . 299 . . . . . . . . . . Feeding criteria ....................................... 299 Choice and culture of foods . . . . . . . . . . . . . . . . . . . . . . 307 . . . . . . . . . General feeding practices . . . . . . . . . . . . . . . . . . . . . . . 336 . . . . . . . . . . Specific feeding practices ................................ 352 General methods used in our hatchery . . . . . . . . . . . . . . . . . 372 . . . . . . . Industrial-scale larval food processing in Italian hatcheries ......... 373 Summary ............................................ 374 9 Nutrition of Juvenile and Adult Fish ...................... 375 ............................. 375 Requirements and components Broodstock nutrition .................................... 407 Nutritional disorders .................................... 408 Environmental considerations . . . . . . . . . . . . . . . . . . . . . 411 . . . . . . . . . Feed studies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 411 . . . . . . . . . . . . Suggested feed formulas ................................. 460 Making and storing feeds ................................ 461 Feeding methods ...................................... 464 Summary ............................................ 467 10 Energetics ............................................ 469 Energy budget components and influencing factors . . . . . . . . . . . 469 . . . .

Download or read book Local Common Names of Indonesian Fishes written by Walter H. Schuster and published by . This book was released on 1952 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Coral Reefs of the Gulf written by Bernhard Riegl and published by Springer Science & Business Media. This book was released on 2012-04-13 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coral Reefs of the Gulf: Adaptation to Climatic Extremes is a complete review and reference for scientists, engineers and students concerned with the geology, biology or engineering aspects of coral reefs in the Middle East. It provides for the first time a complete review of both the geology and biology of all extant coral areas in the Gulf, the water body between Iran and the Arabian Peninsula. In summer, this area is the hottest sea with abundant coral growth on earth and already today exhibits a temperature that is predicted to occur across the topical ocean in 2100. Thus, by studying the Gulf today, much can be learned about tomorrow’s world and the capability of coral reefs to adapt to climatic extremes. This volume provides the most authoritative and up-to-date review of the coral reefs in the Gulf. It can be used as a volume of general reference or as a textbook treating recent coral reefs. Written by local and international experts, the text is richly illustrated and will remain a standard reference for the region for decades to come. Contributions stretch from climatology through geology, biology, ecological modelling and fisheries science to practical conservation aspects. The book is useful for the technical expert and casual reader alike.

Download or read book Fish Names of Western Polynesia written by Karl Heinz Rensch and published by . This book was released on 1994 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: