Search results for: loggerhead-sea-turtles

Loggerhead Sea Turtles

Author : Alan E. Bolton
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Sea turtles have been the focus of research and intense conservation efforts for decades and the Loggerhead Sea Turtle, currently listed as a threatened species, is arguably one of the best studied of the seven species. Loggerhead Sea Turtles brings together, for the first time, international experts to synthesize the knowledge of Loggerhead biology and conservation and sets the stage for future ecological, biological, and conservation research. Highly detailed coverage includes diet, growth, nesting, migration, habitat selection, and conservation.

Green Sea Turtle Loggerhead Sea Turtle and Pacific Ridley Sea Turtle Listing and Protection Under the Endangered Species Act of 1973

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The Biology of Sea Turtles

Author : Jeanette Wyneken
File Size : 22.83 MB
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Since the first volume of The Biology of Sea Turtles was published in 1997, the field has grown and matured in ways few of the authors would have predicted—particularly in the areas of physiology, behavior, genetics, and health. Volume III presents timely coverage of emerging areas as well as the integration of approaches and information that did not exist even a decade ago. The book assembles the foremost experts in each topic to provide the most up-to-date and comprehensive book on sea turtles available today. New areas covered include in vivo imaging of structure, spatial distributions of marine turtles at sea, epibiosis, imprinting, parasitology, and climatic effects. Life history is explored in three chapters covering age determination, predator-prey interactions, and mortality from bycatch. The Biology of Sea Turtles, Volume III will inspire scientists and students to explore and expand their understanding of these intriguing animals. The book provides clear baseline summaries, thoughtful syntheses, and effective presentation of the most fundamental topics spanning form and function, health, distributions, behavior, genetics, evolution, and ecology. Its scope and depth make it the definitive go-to reference in the field.

Loggerhead Sea Turtles Caretta Caretta A Target Species for Monitoring Litter Ingested by Marine Organisms in the Mediterranean Sea

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Abstract: Marine litter is any persistent, manufactured or processed solid material discarded, disposed of or abandoned in the marine and coastal environment. Ingestion of marine litter can have lethal and sub-lethal effects on wildlife that accidentally ingests it, and sea turtles are particularly susceptible to this threat. The European Commission drafted the 2008/56/EC Marine Strategy Framework Directive with the aim to achieve a Good Environmental Status (GES), and the loggerhead sea turtle ( Caretta caretta, Linnaeus 1758) was selected for monitoring the amount and composition of litter ingested by marine animals. An analogous decision has been made under the UNEP/MAP Barcelona Convention for the protection of the Mediterranean Sea, following the Ecosystem Approach. This work provides for the first time, two possible scenarios for the Marine Strategy Framework Directive GES, both related to " Trends in the amount and composition of litter ingested by marine animals" in the Mediterranean Sea. The study validates the use of the loggerhead turtle as target indicator for monitoring the impact of litter on marine biota and calls for immediate use of this protocol throughout the Mediterranean basin and European Region. Both GES scenarios are relevant worldwide, where sea turtles and marine litter are present, for measuring the impact of ingested plastics and developing policy strategies to reduce it. In the period between 2011 and 2014, 150 loggerhead sea turtles, found dead, were collected from the Italian Coast, West Mediterranean Sea Sub-Region. The presence of marine litter was investigated using a standardized protocol for necropsies and lab analysis. The collected items were subdivided into 4 main categories, namely, IND-Industrial plastic, USE-User plastic, RUB-Non plastic rubbish, POL-Pollutants and 14 sub-categories, to detect local diversity. Eighty-five percent of the individuals considered (n=120) were found to have ingested an average of 1.3±0.2g of litter (dry mass) or 16±3 items. Graphical abstract: Highlights: Interaction between marine litter and sea turtles: relevant worldwide scenarios were examined to measure the impact of ingested plastics and to develop policy strategies to reduce it. GES and Target scenarios relating to " Trends in the amount and composition of litter ingested by marine animals" in the Mediterranean Sea were established. The Loggerhead is confirmed to be the main target species for litter ingested by marine animals in European and Non-EU Mediterranean Countries. Abstract : This paper presents new scenarios relating to " Trends in the amount and composition of litter ingested by marine animals" in the Mediterranean Sea. It is the result of a pilot study on the use of the loggerhead turtle, Caretta caretta as indicator species under the Marine Strategy Framework Directive and the Barcelona Convention for the achievement of Good Environmental Status.

Assessment Update for the Kemp s Ridley and Loggerhead Sea Turtle Populations in the Western North Atlantic

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Synopsis of the Biological Data on the Loggerhead Sea Turtle

Author : C. Kenneth Dodd
File Size : 40.13 MB
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Sea turtles in the Mediterranean Distribution threats and conservation priorities

Author : Paolo Casale
File Size : 74.21 MB
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The Biology of Sea Turtles

Author : Jeanette Wyneken
File Size : 74.46 MB
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Since the first volume of The Biology of Sea Turtles was published in 1997, the field has grown and matured in ways few of the authors would have predicted—particularly in the areas of physiology, behavior, genetics, and health. Volume III presents timely coverage of emerging areas as well as the integration of approaches and information that did not exist even a decade ago. The book assembles the foremost experts in each topic to provide the most up-to-date and comprehensive book on sea turtles available today. New areas covered include in vivo imaging of structure, spatial distributions of marine turtles at sea, epibiosis, imprinting, parasitology, and climatic effects. Life history is explored in three chapters covering age determination, predator-prey interactions, and mortality from bycatch. The Biology of Sea Turtles, Volume III will inspire scientists and students to explore and expand their understanding of these intriguing animals. The book provides clear baseline summaries, thoughtful syntheses, and effective presentation of the most fundamental topics spanning form and function, health, distributions, behavior, genetics, evolution, and ecology. Its scope and depth make it the definitive go-to reference in the field.

Nest to surf Mortality of Loggerhead Caretta Caretta Sea Turtle Hatchings on Florida s East Coast in 2016

Author : Victoria Erb
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Worldwide, sea turtles are especially vulnerable immediately after emerging from nests. Many monitoring programs measure hatchling production from nest inventories. These inventories rarely account for mortality occurring post-emergence, leaving an incomplete estimate of hatchling production. This study addresses the nest-to-surf data gap for Florida's east coast nesting assemblages of loggerhead sea turtles (Caretta caretta). Five locations were surveyed during the 2016 nesting season by using infrared time-lapse imagery, night vision optics, and track maps. Over all beaches, 7.6% of the observed hatchlings did not survive to reach the water. Mortality sources varied by location. Observed predators included: foxes, bobcats, yellow-crowned night herons, ghost crabs, and gulls. Hatchling disorientation and misorientation occurred more frequently in urban areas than natural areas. Factors including number of hatchlings emerging, nest-to-surf distance, and urbanization may help managers estimate nest-to-surf mortality. This study will improve life history models that serve as foundations of conservation management.

Sea Turtles

Author : Jeff Ripple
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Examines every species of sea turtle and their characteristics, how they navigate, what their threats are, and how conservation efforts are helping them survive.

Sea Turtle Journey

Author : Lorraine A. Jay
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A tiny loggerhead turtle hatches on the beach, rushes to the water, and makes her journey far out to sea, where she grows bigger and stronger in preparation for returning to the beach to lay her own eggs.

Do You Know Where Sea Turtles Go

Author : Paul Lowery
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Simple rhyming text follows a sea turtle from her birth through her wanderings in the ocean to her return to the original beach to lay her own eggs.

Sea Turtles

Author : Blair E. Witherington
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Describes the life of sea turtles including their form and function, their transition from land to sea and back again, and their relationship with humans.

Sea Turtles

Author : Books Llc
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 51. Chapters: Sea turtle, Fibropapillomatosis, Loggerhead sea turtle, Green sea turtle, Leatherback sea turtle, Hawksbill sea turtle, Olive ridley sea turtle, Mazunte, Threats to sea turtles, Kemp's ridley, Protostegidae, Turtle excluder device, Psephophorus, Flatback sea turtle, Tour de Turtles, Caribbean Conservation Corporation, Protostega, Archelon, Marine Turtles in Africa MoU, IOSEA, Mesodermochelys, Corsochelys, Santanachelys, Terlinguachelys fischbecki, Mexichelys, Cheloniidae, Kazanl, Gigantatypus, Arabemys, Toxochelys, Notochelone, Chelosphargis, Itilochelys, Glarichelys, Carolinochelys, Pneumatoarthrus, Procolpochelys, Argillochelys, Protosphargis, Thalassemys, Allopleuron, Bouiachelys, Desmatochelys, Adelita, Eurysternum, Miocaretta, Cratochelone. Excerpt: The loggerhead sea turtle (Caretta caretta), or loggerhead, is an oceanic turtle distributed throughout the world. It is a marine reptile, belonging to the family Cheloniidae. The loggerhead measures up to 213 centimetres (84 in) long when fully grown. The adult loggerhead sea turtle weighs approximately 135 kilograms (300 lb). The skin ranges from yellow to brown in color, and the shell is typically reddish-brown. There are no external differences in gender until the turtle becomes an adult, the most obvious difference being that adult males have thicker tails and shorter plastrons than the females. The loggerhead sea turtle is found in the Atlantic, Pacific, and Indian oceans as well as the Mediterranean Sea. It spends most of its life in saltwater and estuarine habitats, with females briefly coming ashore to lay eggs. The loggerhead sea turtle has a low reproductive rate; females lay an average of four egg clutches and then become quiescent, producing no eggs for two to three years. The loggerhead reaches sexual maturity within 17-33 years and has a lifespan of ...

Results from the Long term Monitoring of Nesting Loggerhead Sea Turtles Caretta Caretta on Wassaw Island Georgia

Author : Kristina L. Williams
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Sea Turtle Scientist

Author : Stephen R. Swinburne
File Size : 62.80 MB
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This compelling addition to the award-winning Scientists in the Field series explores the leatherback sea turtle's remarkable natural history and recounts the extraordinary efforts being made by scientists trying to save them. 15,000 first printing.

Sea Turtles of the World

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Sea Tu rtles of the World provides an in-depth look at these prehistoric looking reptiles that have lived on earth longer than 210 million years, surviving two waves of mass extinction. Author and photographer Doug Perrine guides the reader through the fascinating life-cycle of the sea turtle, from their harrowing dash from the nest to the ocean as vulnerable hatchlings through the many years spent at sea during maturation, to sexual maturity, reproduction, and migration. Perrine describes the evolution of the sea turtle, its anatomy, events that lead to its endangerment, and attempts to save the sea turtle. Table of Contents: Origin and Anatomy, Mating Behavior and Reproduction, The Lost Decade, Growing Up, The Incredible Journey, Sea Turtles and Humans, Families and Species, Watching Sea Turtles, Appendices, Bibliography, Index. Detailed descriptions of the Green Sea Turtle, Loggerhead Turtle, Hawksbill Turtle, Olive Ridley Turtle, Kemp's Ridley Turtle, Australian Flatback Turtle, and the Leatherback Turtle are included, as is a chapter on watching sea turtles from land and from the water. Annotation. Perrine, a writer and photographer specializing in marine life, offers an in-depth look at the natural history of sea turtles and details efforts to preserve them in this guide for general readers. Those who would like to watch sea turtles in their natural habitat will find information on the best land and water locations for observing them. A wealth of color photos highlights species diversity and the sea turtle's relationships with fish (and divers).

Sea Turtles Race to the Sea

Author : Kathy Allen
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"Describes the sea turtle and its disappearing habitat"--Provided by publisher.

Proceedings of the Second Western Pacific Sea Turtle Cooperative Research Management Workshop

Author : Irene Kinan
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Turtle Turtle Watch Out

Author : April Pulley Sayre
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From before the time she hatches until she returns to the same beach to lay eggs of her own, a sea turtle is helped to escape from danger many times by different human hands.