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Author: Karen L.M. Martin
Publisher: CRC Press
Published: 2014-09-13
Total Pages: 223
ISBN-13: 1482208008
DOWNLOAD EBOOK →Beach-spawning fishes from exotic locations on most continents of the world provide spectacular examples of extreme adaptations during the most vulnerable life cycle stages. The beauty, intriguing biology, and importance of these charismatic fishes at the interface of marine and terrestrial ecosystems have inspired numerous scientific studies. Adap
Author: Karen L.M. Martin
Publisher: CRC Press
Published: 2014-09-13
Total Pages: 228
ISBN-13: 1482207974
DOWNLOAD EBOOK →Beach-spawning fishes from exotic locations on most continents of the world provide spectacular examples of extreme adaptations during the most vulnerable life cycle stages. The beauty, intriguing biology, and importance of these charismatic fishes at the interface of marine and terrestrial ecosystems have inspired numerous scientific studies. Adaptations of behavior, physiology, development, and ecology are gathered together for the first time in this book. Beach-Spawning Fishes: Reproduction in an Endangered Ecosystem is a comprehensive guide to beach spawning, a charismatic animal behavior that is seen in a surprising number of teleost species. This unexpected form of reproduction provides a window into the ecology of coastal areas, the behaviors and physiology necessary for fishes and their eggs to adapt to terrestrial conditions, and the threats and challenges for conservation and management. Beach-spawning species include important forage fishes such as the capelin, exotic fishes such as the fugu puffer, and the spectacular midnight runs of the California grunion.
Author: William Francis Thompson
Publisher:
Published: 1872
Total Pages: 36
ISBN-13:
DOWNLOAD EBOOK →Author: U.S. Fish and Wildlife Service. Office of Biological Services
Publisher:
Published: 1982
Total Pages: 214
ISBN-13:
DOWNLOAD EBOOK →Author: Bernard Einar Skud
Publisher:
Published: 1959
Total Pages: 24
ISBN-13:
DOWNLOAD EBOOK →Aerial surveys to observe milt clouds produced by spawning herring in Southeastern Alaska waters hold promise as a method for assessing the extent of spawn deposition. Flights are conducted at altitudes of 500 to 700 feet and at cruising speeds of 120 knots. The mileage of beach utilized for spawning is recorded on reduced prints of navigation charts. The surveys have resulted in the discovery of 80 previously unreported spawning beaches. Observations during these preliminary flights have also added valuable information on the time of spawning and the physical characteristics of the beaches.
Author: Marah J. Hardt
Publisher: Macmillan + ORM
Published: 2016-02-09
Total Pages: 313
ISBN-13: 146687922X
DOWNLOAD EBOOK →An Oprah.com "Best Book for National Reading Month" Forget the Kama Sutra. When it comes to inventive sex acts, just look to the sea. There we find the elaborate mating rituals of armored lobsters; giant right whales engaging in a lively threesome whilst holding their breath; full moon sex parties of groupers and daily mating blitzes by blueheaded wrasse. Deep-sea squid perform inverted 69s, while hermaphrodite sea slugs link up in giant sex loops. From doubly endowed sharks to the maze-like vaginas of some whales, Sex in the Sea is a journey unlike any other to explore the staggering ways life begets life beneath the waves. Beyond a deliciously voyeuristic excursion, Sex in the Sea uniquely connects the timeless topic of sex with the timely issue of sustainable oceans. Through overfishing, climate change, and ocean pollution we are disrupting the creative procreation that drives the wild abundance of life in the ocean. With wit and scientific rigor, Hardt introduces us to the researchers and innovators who study the wet and wild sex lives of ocean life and offer solutions that promote rather than prevent, successful sex in the sea. Part science, part erotica, Sex in the Sea discusses how we can shift from a prophylactic to a more propagative force for life in the ocean.
Author: Emma Choi
Publisher:
Published: 2020
Total Pages: 38
ISBN-13:
DOWNLOAD EBOOK →Many studies have used the spawning activity of fishes to assess the abundance, distribution, and reproductive success of populations. While spawning activity of marine fishes in offshore waters has been studied extensively, little is known about the spawning activity that occurs in near shore communities. This study utilized weekly fish egg sampling in order to construct a seven-year time series of fish spawning near the Scripps Pier in La Jolla, California. Additionally, fish egg sampling was recently introduced to five other sites along the California coast--Santa Cruz, San Luis Obispo, Santa Barbara, Santa Monica, and Newport Beach. The majority of fish eggs collected have been identified to a species level through the use of DNA barcoding of the COI and 16S genes. Strong seasonal trends have been identified in the spawning seasons of fishes in La Jolla. However, the spawning activity within the summer spawning season, varies greatly among years, both in egg production and species diversity. The unpredictable shifts in spawning activity pose a threat to the stability of their populations and need to be analyzed further to identify factors responsible for these changes. While only one year of data has been collected from the newer sites, the two sites North of Point Conception show greatly reduced diversity in species composition compared to the Southern sites. The extent of spatial variation between sites will become more evident as more data is gathered from continuous sampling.
Author: Zeehan Jaafar
Publisher: CRC Press
Published: 2017-07-12
Total Pages: 390
ISBN-13: 1498717888
DOWNLOAD EBOOK →Mudskippers are amphibious fishes native to the Indo-West Pacific and tropical western Africa. Unlike most fishes, mudskippers emerse to forage, find mates, and defend territories. Adaptations to their morphology, physiology and behavior enable mudskippers to accommodate both aquatic and terrestrial habitats. For these traits, mudskippers have long captured the fascination of scientists, naturalists, and fish hobbyists. Some mudskipper taxa (e.g. Periophthalmodon spp., Periophthalmus spp., Boleophthalmus spp.) are readily observed on mudflats and mangrove forests during the ebb tide. Correspondingly, these conspicuous and widespread taxa are relatively well-studied. The autecology and basic biology for the remaing taxa (e.g. Apocryptodon spp. and Oxuderces spp.) are still poorly understood. Fishes Out of Water: Biology and Ecology of Mudskippers is the first comprehensive book to synthesize published scientific information and observation on these fishes. Two dozen subject experts present thorough overviews in fifteen distinct chapters. Contents span mudskipper anatomy, distribution, systematics, physiology, ecology, and conservation. Unique adaptations to terrestriality are discussed within the context of each chapter foci. This authoritative reference equips the reader with the basic foundation to understand mudskipper biology and ecology, while providing a framework in which emerging data are discussed. The book will be of interest to a broad range of students, researchers, and professionals in ichthyology, evolution, ecology, animal behavior, and comparative physiology.
