Download or read book An Assessment of the Habitat Quality and Nutritional Intake of North Atlantic Right Whales in Cape Cod Bay written by Amy Susanna Delorenzo and published by . This book was released on 2005 with total page 458 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 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 Dissertation Abstracts International written by and published by . This book was released on 2006 with total page 780 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 2009-01-01 with total page 566 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 at the sight of 25 right whales. It was, one scientist later recalled, "like finding a brontosaurus in the backyard." 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. The authors present our current knowledge about the biology and plight of right whales, including their reproduction, feeding, genetics, and endocrinology, as well as fatal run-ins with ships and fishing gear. Employing individual identifications, acoustics, and population models, Scott Kraus, Rosalind Rolland, and their colleagues present a vivid history of this animal, from a once commercially hunted commodity to today's life-threatening challenges of urban waters. Hunted for nearly a millennium, right whales are now being killed by the ocean commerce that supports our modern way of life. This book offers hope for the eventual salvation of this great whale.
Download or read book Investigating the Migration and Foraging Ecology of North Atlantic Right Whales with Stable Isotope Geochemistry of Baleen and Zooplankton written by Nadine Stewart J. Lysiak and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: The foraging grounds of the endangered North Atlantic right whale (Eubalaena glacialis) are protected under management rulings, but several datasets suggest that right whales use habitats far beyond these areas. In 2005, the National Marine Fisheries Service published a Right Whale Recovery Plan citing the "characterization and monitoring of important habitats" as high research priorities. Stable isotopes ratios in animal tissue are intrinsic tags of migration, as they vary regionally in the environment, and are assimilated via trophic transfer. This dissertation describes carbon, nitrogen, oxygen, and hydrogen stable isotope ratios in baleen and zooplankton collected in the Gulf of Maine, and their application in determining the migration patterns and foraging ecology of E. glacialis. The Gulf of Maine stable isotope landscape was examined through analysis of zooplankton samples from seven E. glacialis habitats. Cape Cod Bay, Great South Channel, and the Bay of Fundy represent distinct isotope sources to right whales. All other habitat areas were statistically indistinguishable, and seasonal right whale movements between these areas cannot be resolved with stable isotope geochemistry. Isotope records in E. glacialis baleen, like those of other large whale species, contain annual oscillations that correspond to broad-scale north/south migrations. To examine right whale movement patterns at seasonal time scales, baleen isotope records, the North Atlantic Right Whale Catalog sighting records, and habitat-specific zooplankton stable isotope values were compared. Poor correlations were found between observed and expected baleen isotope values, likely because of the confounding contribution of body nutrient pools that were de-coupled from diet (i.e. non-essential amino acids). Comparisons of recently collected E. glacialis baleen data with isotope records from late 19 th -early 20 th century baleen revealed a long-term decrease in carbon and increase in nitrogen isotopes. The observed trends are attributed to increasing anthropogenic inputs of carbon dioxide and nitrogen species, climatic forcing from the North Atlantic and Pacific Decadal Oscillations, and poor overall health in the present- day right whale population. The results of this study revealed that right whales use "historic habitat" areas more frequently than currently assumed, and demonstrates both the spatial/temporal limitations of the stable isotope method and the confounding effect of fluctuating biogeochemical signals in the environment
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: In the cold waters of the North Atlantic Ocean, some of the heartiest humans of medieval days ventured out in search of whales. Through the centuries, people 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. This book is a 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.
Download or read book Whale Protection and the Impact on North Atlantic Fisheries written by United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Subcommittee on Oceans and Fisheries and published by . This book was released on 1997 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book North Atlantic Ocean Habitats Important to the Conservation of North Atlantic Right Whales Eubalanea Glacialis written by Richard M. Pace and published by . This book was released on 2008 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: "We provide a spatial and temporal description of the habitats important to the conservation of North Atlantic right whales (Eubalaena glacialis) in US waters of the Northwest Atlantic Ocean. This analysis is based on the premise that the biological and physical feature of habitat essential to the conservation of right whales in this region (i.e., the primary constituent element [PCE] which a species needs to survive and reproduce) is the presence of dense patches of calanoid copepods (notably Calanus finmarchicus). Despite the general importance of copepods to the marine food web of the region, only limited data are available to map the distribution of dense copepod patches that constitute the PCE for foraging right whales. Hence, we used right whale foraging areas as a proxy for the spatial locations of these patches. Based on systematic sighting surveys for right whales conducted from 1970 through 2005, we identified concentrations of foraging right whales in US Atlantic waters north of 40° N latitude. These data were then used to define Dynamic Area Management (DAM) zones, which indicated that most of the area north of the Great South Channel on Georges Bank was used at least seasonally for foraging. This region included seasonal foraging subareas generally identified as Cape Cod Bay, Great South Channel, Northern Edge of Georges Bank, Western Gulf of Maine, Wilkinson Basin, and Jordan Basin. Wilkinson and Jordan Basins are also considered essential to the conservation of right whales because these two basins are source areas for the dense copepod concentrations upon which right whales prey in US Northwest Atlantic waters"--Publication's home page.
Download or read book Surveillance Monitoring and Management of North Atlantic Right Whales in Cape Cod Bay and Adjacent Waters 2002 written by Provincetown Center for Coastal Studies and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In order to gain a better understanding of both the spatial and temporal distribution of individually identified right whales in Cape Cod Bay, an extensive surveillance and monitoring research program was undertaken [from] ... 1998 ... [to] 2002, [so as] to document the right whales in the ... Critical Habitat area ..., to provide sighting data ... [and] to monitor right whales in the study area for evidence of entanglement ...
Download or read book Amending the Atlantic Large Whale Take Reduction Plan Broad based Gear Modifications written by and published by . This book was released on 2007 with total page 808 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surveillance Monitoring and Management of North Atlantic Right Whales in Cape Cod Bay and Adjacent Waters 2008 written by R. H. Leeney and published by . This book was released on 2008 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surveillance Monitoring and Management of North Atlantic Right Whales in Cape Cod Bay and Adjacent Waters 2009 written by R. H. Leeney and published by . This book was released on 2009 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surveillance Monitoring and Management of North Atlantic Right Whales in Cape Cod Bay and Adjacent Waters 2007 Final Report written by Nathalie Jaquet and published by . This book was released on 2007 with total page 130 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 2002 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surveillance Monitoring and Management of North Atlantic Right Whales in Cape Cod Bay and Adjacent Waters 2003 written by Provincetown Center for Coastal Studies and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Surveillance Monitoring and Management of North Atlantic Right Whales in Cape Cod Bay and Adjacent Waters 2002 written by Moira W. Brown and published by . This book was released on 2002 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt:
