Download or read book North Atlantic Right Whale Eubalaena Glacialis Acoustic Behavior And Feeding In Cape Cod Bay Massachusetts written by Ingrid Biedron and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surveillance Monitoring and Management of North Atlantic Right Whales Eubalaena Glacialis in Cape Cod Bay Massachusetts written by Moira W. Brown and published by . This book was released on 2000 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Urban Whale written by Scott D. Kraus and published by Harvard University Press. This book was released on 2007-02-15 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1980 a group of scientists censusing marine mammals in the Bay of Fundy was astonished by the sight of 25 right whales. Until that time, scientists believed the North Atlantic right whale was extinct or nearly so. The sightings electrified the research community, spurring a quarter century of exploration, which is documented here.
Download or read book Disappearing Giants written by Scott Kraus and published by Bunker Hill Publishing, Inc.. This book was released on 2003 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: The North Atlantic right whale is the most endangered large whale in the oceans today. This is a story of science and rediscovery, of survival and protection, and of research, without which we cannot hope to protect the right whale's habitat.
Download or read book Surveillance Monitoring and Management of North Atlantic Right Whales eubalaena Glacialis in Cape Cod Bay Massachusetts written by Massachusetts. Division of Marine Fisheries and published by . This book was released on 1999 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: ...Report on the results of the research activities on the Right Whales in 1999...
Download or read book Surveillance Monitoring and Management of North Atlantic Right Whales Eubalaena Glacialis in Cape Cod Bay Massachusetts written by Moira W. Brown and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Models of North Atlantic Right Whale Habitat written by Daniel Edward Pendleton and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intense whaling nearly abolished the North Atlantic right whale (Eubalaena glacialis) population. Present day threats to the species are collisions with vessels, entanglement in fishing gear, and environmental variability. In this body of work we quantify the relationship between right whales and their prey, ricegrain sized crustaceans called copepods, and employ a spatial model to predict the potential distribution of right whales on a weekly basis. Time series datasets of right whale abundance and copepod concentration were analyzed to quantify the relationship between right whales and their prey. We found significant relationships between right whales and copepods in Cape Cod Bay and the Great South Channel. These results tell us that accurate regional-scale models of copepod concentration can be used to infer the time and location of good right whale feeding conditions. The environmental niche of right whales was characterized using modeled prey abundance, sea surface temperature, chlorophyll concentration and bathymetry. With environmental data for the time and location of each right whale occurrence between 2002 and 2006, we trained and tested a model to predict right whale habitat suitability on a weekly basis. The accuracy of predictions was good, and the feasibility of our approach was verified. Results suggest that right whale habitat preferences are dynamic and that the distribution of prey is an important to the distribution of whales. We built an operational forecasting model of right whale habitat suitability in Cape Cod Bay, and used it to make weekly predictions for the year 2009. Modeled concentration of two right whale prey taxa (C. finmarchicus and Pseudocalanus spp.) sea surface temperature, chlorophyll and bathymetry were used as predictor variables. Predictions were verified with occurrences of right whales in Cape Cod Bay from 2009. Model output was used to assess the utility of moving shipping routes in Cape Cod Bay. The model was then projected, beyond the model-training region, into Massachusetts Bay. Results suggested that altering of shipping lanes in Cape Cod Bay is unlikely to reduce the risk of ship-strikes. A significant positive relationship was found between predicted habitat suitability and the number of acoustic detections of right whales in Massachusetts Bay. We conclude that our modeling approach could be used to: 1) issue weekly forecasts of right whale habitat quality, 2) assess conservation actions, 3) guide survey effort in other regions, and ultimately to reduce human-caused risk to the right whales.
Download or read book Acoustic Communication in the North Atlantic Right Whale Eubalaena Glacialis written by and published by . This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The focus of this thesis is the use of sound for communication by the North Atlantic right whale (Eubalaena glacialis). The surface active group (SAG) is the predominant social interaction in this species for which use of sound has been documented. Different group compositions in SAGs indicate that both potentially reproductive and non-reproductive groups have been combined under one label. Sound production in SAGs suggests that females form and maintain the groups by producing Scream calls. Males produce Upcalls and Gunshot sounds. Some calves produce Warble sounds in SAGs. Acoustic recordings confirm that SAGs are complex interactions between individuals, rather than simple groups with only one whale producing all the sounds to attract other whales to the group. Playback experiments demonstrate that right whales can use sounds from SAGs to locate the groups. Male right whales approached both North Atlantic and Southern right whale SAG playbacks. Female right whales only approached Southern right whale playbacks. Anatomical modeling resulted in a frequency range of hearing for the right whale (10 Hz - 22 kHz) that is consistent with the sounds that they produce and overlaps the frequency range of most anthropogenic noise sources. This combination of research provides a thorough description how North Atlantic right whales use sound in SAGs and how increasing levels of noise in the oceans may impact right whales in these groups. (25 tables, 68 figures, chapter refs.).
Download or read book Surveillance Monitoring and Management of North Atlantic Right Whales Eubalaena Glacialis in Cape Cod Bay Massachusetts written by Moira W. Brown and published by . This book was released on 2002 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acoustic Communication in the North Atlantic Right Whale Eubalaena Glacialis written by Susan Elizabeth Parks and published by . This book was released on 2003 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: The focus of this thesis is the use of sound for communication by the North Atlantic right whale (Eubalaena glacialis). The surface active group (SAG) is the predominant social interaction in this species for which use of sound has been documented. Different group compositions in SAGs indicate that both potentially reproductive and non-reproductive groups have been combined under one label. Sound production in SAGs suggests that females form and maintain the groups by producing Scream calls. Males produce Upcalls to advertise their presence as they come into a group or when the female is on a dive. Males may use Gunshot sounds as threat signals to other males in the group or potentially as reproductive advertisement signals to the female. Some calves produce Warble sounds in SAGs. This may be limited to female calves. This description of acoustic activity in the groups adds to the picture of the SAGs as complex interactions between individuals, rather than simple groups with only one whale producing all the sounds to attract other whales to the group. Playback experiments demonstrate that right whales can use sounds from SAGs to locate the groups. Male right whales approached both North Atlantic and Southern right whale SAG playbacks. Female right whales only approached Southern right whale playbacks. Anatomical modeling resulted in a frequency range of hearing for the right whale (10 Hz - 22 kHz) that is consistent with the sounds that they produce and overlaps the frequency range of most anthropogenic noise sources. This combination of research provides a thorough description how North Atlantic right whales use sound in SAGs and how increasing levels of noise in the oceans may impact right whales in these groups.
Download or read book Surveillance Monitoring and Management of North Atlantic Right Whales Eubalaena Glacialis in Cape Cod Bay Massachusetts written by Moira W. Brown and published by . This book was released on 1998 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fishery Bulletin written by and published by . This book was released on 1971 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book North Atlantic Right Whales written by David W. Laist and published by JHU Press. This book was released on 2017-03-29 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fascinating story of North Atlantic right whales—from their evolutionary origin, through a thousand-year history of relentless pursuit by whalers, to ongoing efforts to rescue them from the brink of extinction. In the cold waters of the unforgiving North Atlantic Ocean, some of the heartiest humans of medieval days ventured out in search of whales. Through the centuries, people on both sides of the Atlantic became increasingly dependent on whale oil and other cetacean products. To meet this growing demand, whaling became ever more sophisticated and intense, leading to the collapse of what was once a seemingly inexhaustible supply of large cetaceans. Central to the whale's subsequent struggle for existence has been one species—the North Atlantic right whale. Conservationist David W. Laist now provides the first complete history of the North Atlantic right whale, from its earliest encounters with humans to its close brush with extinction, to its currently precarious yet hopeful status as a conservation icon. Favored by whalers because of their high yields of oil and superior baleen, these giants became known as "the right whale to hunt," and their numbers dwindled to a mere 100 individuals worldwide. Their dire status encouraged the adoption of a ban on hunting and a treaty that formed the International Whaling Commission. Recovery of the species, however, has proven elusive. Ship strikes and entanglement in commercial fishing gear have hampered herculean efforts to restore the population. Today, only about 500 right whales live along the US and Canadian Atlantic coasts—an improvement from the early twentieth century, but still a far cry from the thousands that once graced Atlantic waters. Laist's masterpiece features an incredible collection of photographs and artwork that give life to the fascinating history that unfolds in its pages. The result is a single volume that offers a comprehensive understanding of North Atlantic right whales, the role they played in the many cultures that hunted them, and our modern attempts to help them recover.
Download or read book Federal Register written by and published by . This book was released on 1994-12-22 with total page 1044 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Impact of Ships written by Stephen de Mora and published by Cambridge University Press. This book was released on 2020-11-05 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: Shipping is responsible for transporting 90% of the world's trade. This book provides a comprehensive review of the impact shipping has on the environment. Topics covered include pollutant discharges such as atmospheric emissions, oil, chemical waste, sewage and biocides; as well as non-pollutant impacts including invasive species, wildlife collisions, noise, physical damage, and the environmental effects associated with shipwrecks and shipbreaking. The history of relevant international legislation is also covered. With chapters written by eminent international authors, this book provides a global perspective on the environmental impact of ships, making it a useful reference for advanced students and researchers of environmental science, as well as practitioners of maritime law and policy, and marine business.
Download or read book A Leviathan of Our Own written by Warren D. Allmon and published by . This book was released on 2004 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Northern Right Whale written by United States. National Marine Fisheries Service and published by . This book was released on 2004 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
