Journal Article

Clinical Pathology Reference Intervals for an In-Water Population of Juvenile Loggerhead Sea Turtles (Caretta caretta) in Core Sound, North Carolina, USA

Cluse, Wendy M., Hohn, Aleta A., Kelly, Terra R., Avens, Larisa, Goshe, Lisa R., Harms, Craig A., Hall, April Goodman, Godfrey, Matthew H., McNeill, Joanne Braun, Mihnovets, A. Nicole

2015

Overview

The loggerhead sea turtle (Caretta caretta) is found throughout the waters of the Atlantic, Pacific, and Indian Oceans. It is a protected species throughout much of its range due to threats such as habitat loss, fisheries interactions, hatchling predation, and marine debris. Loggerheads that occur in the southeastern U.S. are listed as \"threatened\" on the U.S. Endangered Species List, and receive state and federal protection. As part of an on-going population assessment conducted by the National Marine Fisheries Service, samples were collected from juvenile loggerhead sea turtles in Core Sound, North Carolina, between 2004 and 2007 to gain insight on the baseline health of the threatened Northwest Atlantic Ocean population. The aims of the current study were to establish hematologic and biochemical reference intervals for this population, and to assess variation of the hematologic and plasma biochemical analytes by season, water temperature, and sex and size of the turtles. Reference intervals for the clinical pathology parameters were estimated following Clinical Laboratory Standards Institute guidelines. Season, water temperature, sex, and size of the turtles were found to be significant factors of variation for parameter values. Seasonal variation could be attributed to physiological effects of decreasing photoperiod, cooler water temperature, and migration during the fall months. Packed cell volume, total protein, and albumin increased with increasing size of the turtles. The size-related differences in analytes documented in the present study are consistent with other reports of variation in clinical pathology parameters by size and age in sea turtles. As a component of a health assessment of juvenile loggerhead sea turtles in North Carolina, this study will serve as a baseline aiding in evaluation of trends for this population and as a diagnostic tool for assessing the health and prognosis for loggerhead sea turtles undergoing rehabilitation.

• Publisher: Public Library of Science,Public Library of Science (PLoS)
• Subject: Animal Shells - anatomy & histology / Animals / Aquatic reptiles / Biochemistry / Biology / Caretta caretta / Cell size / Chelonia mydas / Cheloniidae / Consortia / Dermochelys coriacea / Diagnostic software / Diagnostic systems / Endangered & extinct species / Endangered Species / Environmental health / Female / Fisheries / Genetic aspects / Habitat loss / Health risks / Hematology / Intervals / Laboratories / Lepidochelys kempii / Male / Marine debris / Marine fish / North Carolina / Oceans / Parameter estimation / Pathology / Physiological effects / Plasma / Population / Predation / Protected species / Protection and preservation / Reference Values / Rehabilitation / Reptiles & amphibians / Sea turtles / Seasonal variations / Seasons / Sex / Temperature effects / Turtles - anatomy & histology / Turtles - blood / Veterinary medicine / Water temperature / Wildlife conservation