Download or read book Spatial and Behavioral Ecology of the Sand Tiger Shark Carcharias Taurus in the Northwestern Atlantic written by Danielle E. Haulsee and published by . This book was released on 2017 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quantifying the biogeography of coastal marine species is difficult and requires innovative study designs. These challenges are the motivation behind this dissertation. The Sand Tiger shark (Carcharias taurus) is an important apex predator in the coastal oceans along the Eastern Coast of the United States. I conducted a study in the Delaware Bay and Mid-Atlantic coastal Ocean, which used historical species location records from acoustic telemetry matched to static and satellite-measured dynamic environmental predictor variables, to create a near-real time predictive species distribution model. Notably we found Sand Tigers were predicted by water temperature, water depth, day length and ocean color absorption in the near-infrared, which likely relates to turbidity in the coastal ocean. In this study I identified the timing and location of migratory corridors used by Sand Tigers, as well as how the timing and location of migration differed between juvenile, mature male and mature female Sand Tigers. ☐ In my second study, I investigated the timing and migration of Sand Tigers along the Delmarva Peninsula on much smaller spatiotemporal scales during their fall migration south, a time during which Sand Tigers are susceptible to anthropogenic threats. For the first time, I used an autonomous underwater vehicle to concurrently detect Sand Tigers carrying acoustic tags, and measure fine scale environmental properties of the sub-surface ocean to determine habitat selectivity. I found that Sand Tigers migrated rapidly and en masse through the coastal ocean off the Delmarva Peninsula and were selecting for waters near-shore, lower in salinity, and higher in color dissolved organic matter. These results support the larger scale patterns in environmental predictors I found in my first study, as well as prove that using autonomous underwater vehicles is an effective method for extending our capabilities of detecting acoustically tagged marine species. ☐ Finally, I developed a novel tagging method that implanted an archival acoustic receiver into the body cavity of Sand Tigers, which were released alive and continued to conduct their annual migration before they were recaptured and the tags were removed. This tagging method allowed me to record associations between Sand Tigers and other acoustically tagged species for one year of the Sand Tigers life. Analysis of that dataset revealed potential fission-fusion behavior, or the change in size and composition of groups, in the Sand Tiger population depending on where the Sand Tigers were along the East Coast, and what they were likely doing during that time (i.e. feeding, searching for mates, migrating, etc.). I observed Sand Tiger aggregations change from mixed groups of male and female juveniles and adults, to groups of only adult males, to solitary phases where Sand Tigers were completely dispersed for weeks at a time. This study is important because it suggests the potential for social behavior in a shark species, but also identifies the possibility of anthropogenic impacts disproportionally impacting one sector of the Sand Tiger population as the composition of their aggregations changes in time and space. This dissertation uses advances in remote sensing and animal tagging methods to provide insights into the species distribution, habitat selection, and the migratory and grouping behavior of a coastal shark species under threat of population decline due to anthropogenic impacts along the East Coast of the United States and provides insights into the ecology and biogeography of this species that will assist managers and researchers in future conservation efforts for this and other imperiled species.
Download or read book Spatial Ecology and Capture Physiology of Juvenile Sand Tiger Sharks Carcharias Taurus in the Western North Atlantic written by Jeff Kneebone and published by . This book was released on 2013 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Update on the Status of the Sand Tiger Shark Carcharias Taurus in the Northwest Atlantic Ocean written by John Keith Carlson and published by . This book was released on 2009 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Movements of Sand Tiger Sharks Carcharias Taurus Rafinesque 1810 in the Northwest Atlantic Ocean written by Hans Walters and published by . This book was released on 2009 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Movement and Habitat Use of Sand Tiger Sharks Carcharias Taurus in North Carolina Coastal Waters written by Madeline Marens and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Behavior of Female and Male Sand Tiger Sharks Carcharias Taurus at the New York Aquarium Prior to Copulation written by Andrea J. Falotico and published by . This book was released on 2008 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Sand Tiger Shark written by Brad Burnham and published by PowerKids Press. This book was released on 2001 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduces the physical characteristics, behavior, habitat, and life cycle of the sand tiger shark.
Download or read book The Behaviour of Sand Tiger Sharks Carcharias Taurus in Captive Environments written by Kathryn Ruth Harris and published by . This book was released on 2002 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Sand Tiger Shark written by Megan Borgert-Spaniol and published by Shark Fact Files. This book was released on 2012-08 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The sand tiger shark's ragged mess of needle-sharp teeth inspires terror that is ultimately unnecessary. The crazed-looking shark isn't interested in preying on humans, but it does have a unique way of seeking out its usual fare. Learn all about sand tiger sharks in this informative title.
Download or read book Sand Tiger Shark written by Carol Carrick and published by . This book was released on 1977-01-01 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examines the life cycle of a sand tiger shark.
Download or read book Sand Tiger Sharks written by Christine Thomas Alderman and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Broad scale Vertical and Horizontal Behavior of the White Shark Carcharodon Carcharias in the Western North Atlantic written by Taryn Szalay and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The ecology of white sharks Carcharodon carcharias in the western North Atlantic (WNA) is largely unknown. With a lack of essential fish habitat (EFH) identified by the National Oceanic and Atmospheric Administration (NOAA), understanding white shark behaviors is crucial to protect aggregation sites and other essential habitats (e.g., mating, parturition) for white sharks. To better understand the movements of these animals, data from 26 tagged white sharks are examined here. Data from the pop-up satellite archival transmitting (PSAT) tags from these sharks were analyzed using the HMMoce package for R (R Development and Core Team 2015) and tracks were generated for all 26 individuals. Additional environmental parameters from the PSAT data were used to generate improved tracks, which were cross referenced with oceanographic data from ocean observing system portals.Vertical movements uncovered 3 main behavior clusters: ROD (rapid oscillatory dives), Travel, and Coastal. These behaviors occurred both on and off the continental shelf, but ROD did not occur in waters around Cape Cod. This behavior was also not present in juveniles (n = 3). There was no evidence of an offshore common foraging area, but Cape Cod was shown to be a large aggregation site, likely due to the increased seal population and warm waters in the summer months. Overall, this research provides a more comprehensive understanding of the temporal and spatial movements in white sharks in the WNA. It also helps establish the diving behaviors of this population. With large knowledge gaps regarding the white shark life history and ecology, these findings help pinpoint areas of importance for white sharks in the WNA, to better assist with management of this species and its habitat.
Download or read book Sharks and Their Relatives written by Merry Camhi and published by IUCN. This book was released on 1998 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sharks and their relatives, the rays and chimaeras, are the diverse group of cartilaginous fishes that have evolved over 400 million years. Historically considered of low economic value to large-scale fisheries, today many of these fishes have become the target of directed commercial and recreational fisheries around the world, and they are increasingly taken in the by-catch of fisheries targeting other species. This report emphasizes the widely-acknowledged need to improve shark fishery monitoring, expand biological research and take management action. It serves as an introduction to the ecology, status and conservation of the sharks and their relatives for a general audience. Shark fisheries can only be managed sustainably, and shark populations remain viable, with the introduction of new conservation and management initiatives.
Download or read book Global Perspectives on the Biology and Life History of the White Shark written by Michael L. Domeier and published by CRC Press. This book was released on 2012-02-03 with total page 571 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inspired by the International White Shark Symposium in 2010, Global Perspectives on the Biology and Life History of the White Shark incorporates the most important contemporary research findings into a single peer-reviewed book. This beautifully illustrated reference represents a historic change in the context of White Shark (Carcharodon carcharias) research. Once considered one of the most poorly understood and difficult sharks to study, this timely book recognizes a new sophisticated focus on the White Shark, raising its status from obscurity to enlightenment. The Global Perspectives on the Biology and Life History of the White Shark celebrates the White Shark as the most studied shark in the sea. Within the chapters one can find new insights into a vast range of topics, such as behavior, physiology, migration patterns, habitat preferences, daily activity patterns, molecular genetics, reproductive biology and new research methods. The book also delves into population monitoring and policy options for managers and researchers.
Download or read book Elasmobranch Biodiversity Conservation and Management written by Sarah L. Fowler and published by IUCN. This book was released on 2002 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Darwin Elasmobranch Biodiversity Conservation and Management project in Sabah held a three-day international seminar that included a one-day workshop in order to highlight freshwater and coastal elasmobranch conservation issues in the region and worldwide, to disseminate the result of the project to other Malaysian states and countries, and to raise awareness of the importance of considering aspects of elasmobranch biodiversity in the context of nature conservation, commercial fisheries management, and for subsistence fishing communities. These proceedings contain numerous peer-reviewed papers originally presented at the seminar, which cover a wide range of topics, with particular reference to species from freshwater and estuarine habitats. The workshop served to develop recommendations concerning the future prospects of elasmobranch fisheries, biodiversity, conservation and management. This paper records those conclusions, which highlight the importance of elasmobranchs as top marine predators and keystone species, noting that permanent damage to shark and ray populations are likely to have serious and unexpected negative consequences for commercial and subsistence yields of other important fish stocks.
Download or read book Sharks of the World written by Leonard J. V. Compagno and published by Food & Agriculture Org.. This book was released on 2001 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: An extensively rewritten, revised and updated version of the original FAO Catalogue of Sharks of the World. This volume reviews all 15 families, 25 genera and 57 species of living bullhead, mackerel and carpet sharks, including certain well-established but currently undescribed species, mainly from Australia.
Download or read book The Galapagos Marine Reserve written by Judith Denkinger and published by Springer Science & Business Media. This book was released on 2014-01-24 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on how marine systems respond to natural and anthropogenic perturbations (ENSO, overfishing, pollution, tourism, invasive species, climate-change). Authors explain in their chapters how this information can guide management and conservation actions to help orient and better manage, restore and sustain the ecosystems services and goods that are derived from the ocean, while considering the complex issues that affect the delicate nature of the Islands. This book will contribute to a new understanding of the Galapagos Islands and marine ecosystems.
