Download or read book Analysis of Stranded Loggerhead Sea Turtles Caretta Caretta in North and South Carolina written by Kristen T. Mazzarella and published by . This book was released on 2007 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synopsis of the Biological Data on the Loggerhead Sea Turtle written by C. Kenneth Dodd and published by . This book was released on 1988 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book History of Research and Management of the Loggerhead Turtle Caretta Caretta on the South Carolina Coast written by Sally R. Hopkins-Murphy and published by . This book was released on 1999 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sea turtle nesting projects in South Carolina data back to the 1930's. In the last decade the Department of Natural Resources' Wildlife Diversity Section has been standardizing the nesting projects methodology and the data that is collected, Through annual training seminars and semiannual site visits, sea turtle project volunteers and employees are updated on the latest scientific information regarding sea turtle conservation and management. Over the years the number of projects has grown. In 1997, 19 permits were issued to conduct nest protections projects along the South Carolina coast ...
Download or read book The Biology and Conservation of Sea Turtles in North Carolina written by Deborah Townsend Crouse and published by . This book was released on 1985 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Assessment of the Loggerhead Turtle Population in the Western Northern Atlantic Ocean written by Southeast Fisheries Science Center (U.S.). Turtle Expert Working Group and published by . This book was released on 2009 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Assessment Update for the Kemp s Ridley and Loggerhead Sea Turtle Populations in the Western North Atlantic written by and published by . This book was released on 2000 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Assessment of Organohalogen Contaminants in Benthic Juvenile Loggerhead Sea Turtles Caretta Caretta from Coastal North Carolina Including Method Development Blood Compartment Partitioning and Temporal Analysis with Emphasis on Polybrominated Diphenyl Ethers written by Brianna K. R. Carlson and published by . This book was released on 2006 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synopsis of the Biological Data on the Loggerhead Sea Turtle written by C. Kenneth Dodd and published by . This book was released on 1988 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Life History and Environmental Requirements of Loggerhead Turtles written by David A. Nelson and published by . This book was released on 1988 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Life History and Environmental Requirements of Loggerhead Turtles written by David Arthur Nelson and published by . This book was released on 1988 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surfacing Behavior of Loggerhead Caretta Caretta Sea Turtles in Estuarine and Coastal Waters of North Carolina written by Joanne Braun-McNeill and published by . This book was released on 2010 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: "To be in compliance with the Endangered Species Act, the United States Department of the Navy is required to assess the potential environmental impacts of conducting at-sea training operations on sea turtles. As a result, the National Marine Fisheries Service (NMFS) was contracted to examine the seasonal distribution and density of sea turtles within North Carolina's Core and Pamlico Sounds where the U.S. Navy Marine Corps Air Station (MCAS) Cherry Point performs at-sea bombing operations. The NMFS's current assessment of sea turtle populations likely underestimated sea turtle density because they did not account for surfacing behavior when calculating density (Goodman et al. 2007). To improve the assessment, we satellite tagged sea turtles to estimate the amount of time they spent at the surface of the water, and then applied a correction factor to previous density estimates"--Executive summary.
Download or read book Decline of the Sea Turtles written by National Research Council and published by National Academies Press. This book was released on 1990-02-01 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores in detail threats to the world's sea turtle population to provide sound, scientific conclusions on which dangers are greatest and how they can be addressed most effectively. Offering a fascinating and informative overview of five sea turtle species, the volume discusses sea turtles' feeding habits, preferred nesting areas, and migration routes; examines their status in U.S. waters; and cites examples of conservation measures under way and under consideration.
Download or read book A Long term Dietary Analysis of Loggerhead Sea Turtles Caretta Caretta Based on Strandings from Cumberland Island Georgia written by Dale A. Youngkin and published by . This book was released on 2001 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Assessment Issuance of a Protected Species Cooperative Conservation Grant to the South Carolina Department of Natural Resources Award No NA10NMF4720035 to Conduct Research on Threatened Loggerhead Sea Turtles written by and published by . This book was released on 2010 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The current EA analyzed the effects of the proposed sea turtle research, which will be conducted in South Carolina, North Carolina, and Georgia. Specifically, the proposed work includes six components: I) conducting a genetic mark -recapture study to evaluate the annual nesting population size, clutch frequency, site fidelity, remigrations rates and population structure for the Northern Recovery unit of loggerheads; 2) sequencing loggerhead mitochondrial DNA to further define and characterize the genetic structure of nesting and foraging popUlations; 3) monitoring sea turtle mortality through maintenance of the Sea Turtle Stranding and Salvage Network (STSSN); 4) monitoring bycatch of marine turtles in North Carolina and Georgia state waters; 5) characterizing pivotal temperatures to estimate sex ratios of loggerhead hatchlings; and 6) continuing a study to characterize and minimize the impacts of boat strikes on sea turtles. Results of this work would be used to assess popUlation status, characterize threats, and develop management strategies to recover the Northern Recovery Unit of loggerhead sea turtles. The proposed action analyzed in the EA would not have significant environmental effects on the target or non-target species; public health and safety would not affected; no unique geographic area would be affected; and the effects of this study would not be highly uncertain, nor would they involve unique or unknown risks. Issuance of this permit would not set a precedent for future actions with significant effects, nor would it represent a decision in principle about a future consideration. There would not be individually insignificant but cumulatively significant impacts associated with the proposed action, and there would not be adverse effects on historic resources. The permit would contain mitigating measures to avoid unnecessary stress to the subject animals"--Cover letter summary.
Download or read book Nest Success and the Survival and Movement of Hatchlings of the Loggerhead Sea Turtle Caretta Caretta on Cape Lookout National Seashore written by Joseph S. Ferris and published by . This book was released on 1986 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nesting Patterns of Loggerhead Sea Turtles Caretta Caretta in North Carolina 2005 2014 written by Alyssa L. Randall and published by . This book was released on 2015 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Defining Habitat Preferences of Pelagic Loggerhead Sea Turtles Caretta Caretta in the North Atlantic Through Analysis of Behavior and Bycatch written by Abigail L. McCarthy and published by . This book was released on 2007 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: For many species of marine turtle the characteristics that define pelagic habitat have yet to be fully identified. A better understanding of these habitat characteristics is critical to reduce high seas fisheries interactions with turtles, especially as the status of many turtle populations has placed them on the threatened or endangered species list. The combination of high-resolution satellite-tracking data with remotely sensed oceanographic data makes it possible to identify habitat for loggerhead turtles by analyzing the behavior of individual animals. Bycatch of loggerhead turtles in longline fisheries can also be examined using the same high-resolution oceanographic data to determine if there are identifiable habitat differences in high- and low- bycatch areas. I analyzed the tracks of ten loggerhead turtles tagged in the spring and fall of 1998 near Madeira, Portugal in relation to the marine environment they occupied. To determine the relationship between an individual turtle and its environment, some measure of behavior was necessary. I calculated the straightness index (SI), the ratio of the displacement of the animal to the total distance traveled, for individual weekly segments of the ten tracks as a measure of individual behavior. I then extracted information about the chlorophyll, sea-surface temperature (SST), bathymetry, and geostrophic current of the ocean in a 20km buffer surrounding the tracks, and examined the relationship between the straightness index and those characteristics using logistic regression. Chlorophyll a value, bathymetry, and movement of the turtle with geostrophic currents were consistently related to the straightness index of the tracks of all ten animals (two-sided p-value from Wald's test: 0.005, 0.0017, and 0.0018, respectively). Tracks were less straight in high chlorophyll regions and in shallower ocean areas, and animals were more likely to be moving with prevailing geostrophic currents during straighter track segments. These results confirm comparable analyses of loggerhead tracks in the Pacific, and indicate that sea turtles alter their behavior (likely representing a shift from traveling to foraging) when they encounter high-chlorophyll regions. Turtles with highly sinuous tracks spend more time in a given area or habitat than those who pass straight through, and therefore may be more susceptible to incidental capture by fisheries operating in those habitats. To address the fisheries bycatch/ habitat interactions I analyzed longline bycatch data to determine whether the marine environmental variables identified in the first part of my study were related to the probability of catching a turtle on a given longline set. I performed a logistic regression analysis using bycatch of turtles as the response variable, and bathymetry, SST, SST gradient (indicative of frontal activity), chlorophyll a, and chlorophyll a gradient as the independent variables. I also included the location and the date of the longline sets as potential predictor variables. I found that the most important variables predicting the odds that a turtle would be caught on a given set were chlorophyll a value in the area of the haul ( Wald's test, p=0.009) and the latitude at the beginning of the haul (Wald's test, p=0.0005). Turtles were more likely to be caught on sets in lower chlorophyll regions and in higher latitude regions of the data set, and there was no indication of important effects of bathymetry. These results disagree with my predictions from the tracking analysis, either because the fisheries-dependent bycatch data set did not provide enough contrast of habitat types, or because bycatch probability is not related to turtle behavior. My results indicate a difference between the critical variables selected as predictors of turtle habitat using the bycatch data and those selected using the behavior of individual tracked animals. While bycatch information is important, the distribution of fisheries data is highly biased towards frontal zones and regions of historic high catch. Judgments about turtle behavior based on only fisheries interactions could lead to incorrect conclusions about where animals spend the majority of their time. Assuming that animals are more likely to have an increased probability of interaction with longlines in areas where they spend more time foraging, fishing pressure should be reduced in those areas of high-use for pelagic loggerheads. It is crucial to base fisheries time-area closures and the design of marine protected areas on the behavior of tracked animals, and not just on fisheries bycatch data.
