Evaluating British Columbias Artificial Reefs In A Conservation Context

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Evaluating British Columbia's Artificial Reefs in a Conservation Context

Author : Desirée Bulger
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (119 download)

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Book Synopsis Evaluating British Columbia's Artificial Reefs in a Conservation Context by : Desirée Bulger

Download or read book Evaluating British Columbia's Artificial Reefs in a Conservation Context written by Desirée Bulger and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Synthetic marine habitats such as artificial reefs (ARs) are deployed to offset marine habitat losses and aid conservation of marine communities, including species at risk. Though environmental benefit is often assumed, AR's ability to support northern temperate marine fish communities has rarely been tested. The structural orientation and location of a reef can strongly influence biodiversity and productivity of faunal communities inhabiting it. For ARs, understanding how reef characteristics affect species and community composition are key in optimizing their use in conservation initiatives. I used ROV and sonar to survey threatened rockfish (Sebastes spp.) and other groundfish species associated with 18 ARs and natural reefs (NRs) along the northeast Pacific coastal shelf, along the coast of BC, Canada. In my second chapter, I investigate how ARs compare to NRs in achieving conservation objectives as measured by fish abundance and species richness. I found that community composition significantly differed between NRs and ARs. ARs had high variability in rockfish abundance, while NRs consistently supported intermediate rockfish abundances. Groundfish diversity was markedly greater on NRs. Depth and relief significantly explained variability in abundance and species richness. Interestingly, rockfish abundance was negatively associated with proximity to nearest rockfish conservation area. In my third chapter, I assess variation between AR fish communities on six reefs to better understand efficacy of meeting conservation objectives. I quantified structural characteristics of each reef using high-definition sonar data to create three-dimensional models and calculate measurements of reef structure. I also examined the effects of surrounding habitat associated with reef locations. I found that depth, conservation status, rugosity, and reef age significantly explained rockfish abundance. Groundfish species richness was significantly associated with conservation status, relief, reef size, and an interaction between depth and reef age. This research is a first step in proposing underlying mechanisms for differences between fish communities on ARs in BC, and which reef attributes facilitate successful contributions to conservation. Though ARs show promise in the conservation of some threatened species, the maintenance of diverse fish communities may depend on protection of heterogeneous natural reef communities. Given that a critical component of AR success is structure, using three-dimensional technologies can be used as a tool to understand species-habitat association on existing reefs and help predict the success of future reefs.

Structure in the Sea

Author : William Seaman
Publisher : Elsevier
ISBN 13 : 0128225823
Total Pages : 350 pages
Book Rating : 4.1/5 (282 download)

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Book Synopsis Structure in the Sea by : William Seaman

Download or read book Structure in the Sea written by William Seaman and published by Elsevier. This book was released on 2022-09-23 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: Structure in the Sea: The Science, Technology and Effects of Purpose-Built Reefs and Related Surfaces provides a review of the history, development, status and emerging trends in research, technology and applications of artificial reef habitats and sea floor structures. The book helps readers understand, utilize and add to the research of modern reef deployment efforts, presenting a guide to equip stakeholders requiring technical foundations and best practices. Topics include materials, designs and construction methods, along with the ecology of these structures, including key aspects of the life history of plants and animals associated with artificial reefs. Rigorous research addressing ecological, economic and engineering questions, coupled with the innovative deployment of structures worldwide by diverse stakeholders, have created a synergy that makes the book a valuable synthesis and analysis for this growing subject. Thus, its broad audience includes marine (coastal and ocean) environmental sciences, including aquatic ecologists, those working in ocean sustainability and conservation, benthic habitat and coral reef restoration practitioners, and more. Presents a new perspective on how we might save natural wonders under threat Provides a representation of reefs, showing the economic and humanitarian value of these natural ecosystems Unlocks potentials for solutions for conservation by including global case studies

Artificial Reefs in Fisheries Management

Author : Stephen A. Bortone
Publisher : CRC Press
ISBN 13 : 1439820082
Total Pages : 342 pages
Book Rating : 4.4/5 (398 download)

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Book Synopsis Artificial Reefs in Fisheries Management by : Stephen A. Bortone

Download or read book Artificial Reefs in Fisheries Management written by Stephen A. Bortone and published by CRC Press. This book was released on 2011-05-09 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: While artificial reefs may have much to offer, they remain an anecdote in the greater scheme of fisheries management, primarily due to the lack of data specific to validating their use. Based on papers presented at the 9th Conference on Artificial Reefs and Artificial Habitats (CARAH) and also including original articles written for this reference,

Artificial Reef Evaluation

Author : William Seaman
Publisher : CRC Press
ISBN 13 : 1420036637
Total Pages : 265 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Artificial Reef Evaluation by : William Seaman

Download or read book Artificial Reef Evaluation written by William Seaman and published by CRC Press. This book was released on 2000-03-23 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beneath the coastal waters of the world lie thousands of artificial reefs. Some are old and retired freighters and ships that once plied the oceans of the world but now serve as habitats for marine life. Others are newer reefs that have been designed and built for specific applications. With the field of aquatic habitat technology continually growi

Impact of Artificial Reefs on the Environment and Communities

Author : Ramos, Jorge H. P.
Publisher : IGI Global
ISBN 13 : 1668423464
Total Pages : 304 pages
Book Rating : 4.6/5 (684 download)

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Book Synopsis Impact of Artificial Reefs on the Environment and Communities by : Ramos, Jorge H. P.

Download or read book Impact of Artificial Reefs on the Environment and Communities written by Ramos, Jorge H. P. and published by IGI Global. This book was released on 2022-05-13 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Among the most important reasons that artificial reefs have been created are the protection of the seabed with macroalgae, the possibility of improving fishing, and meeting the expectations and demands of tourists. Coastal managers have realized that it is important that artificial reefs are useful to people, especially local communities, and that it is therefore important that they are promoted by government entities for various professional and leisure activity use. Coastal managers must take this into consideration when reefs are designed. They must also define the ecosystem services they promote as well as the main uses for which the reefs are created. Impact of Artificial Reefs on the Environment and Communities presents insights on the connection between artificial reefs and the tourism industry in order to encourage the sharing of experiences and development of new innovative possibilities that create value for society. It presents the experiences, testimonies, and innovations of those who work closely with artificial reefs. Covering topics such as computational fluid dynamics, dive tourism, and Industry 4.0, this book is an essential resource for entrepreneurs, researchers, students and educators of higher education, coastal managers, government officials, leaders in tourism, engineers, and academicians.

ARTIFICIAL REEFS AS A PLATFORM FOR RESEARCH AND CONSERVATION IN CORAL REEF ECOSYSTEMS.

Author : Emily Higgins
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (134 download)

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Book Synopsis ARTIFICIAL REEFS AS A PLATFORM FOR RESEARCH AND CONSERVATION IN CORAL REEF ECOSYSTEMS. by : Emily Higgins

Download or read book ARTIFICIAL REEFS AS A PLATFORM FOR RESEARCH AND CONSERVATION IN CORAL REEF ECOSYSTEMS. written by Emily Higgins and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Artificial reefs (ARs) increasingly are being deployed to mitigate damage to coral reef ecosystems from local anthropogenic stressors and climate change. Evaluating the efficacy of ARs in enhancing or sustaining reef assemblages is key to assessing their role in conservation or management. In this thesis, I review global patterns of AR deployment and monitoring in coral ecosystems, and evaluate their success in achieving conservation objectives. I also present results of a 13-month field experiment that compared patterns of colonization on settlement collectors (ceramic tiles) on ARs and natural reefs at Eilat, Gulf of Aqaba. I found that the composition of algal and invertebrate colonists differed with collector aspect (top or underside) and between reef types (ARs vs. natural reef) in shaded microhabitats (undersides). Invertebrate biomass also tended to be greater on ARs than natural reefs, suggesting that ARs can potentially enhance the abundance of certain reef-associated assemblages.

Artificial Circulation in British Columbia : Review and Evaluation

Author : Kenneth Ian Ashley
Publisher :
ISBN 13 : 9780772606976
Total Pages : 34 pages
Book Rating : 4.6/5 (69 download)

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Book Synopsis Artificial Circulation in British Columbia : Review and Evaluation by : Kenneth Ian Ashley

Download or read book Artificial Circulation in British Columbia : Review and Evaluation written by Kenneth Ian Ashley and published by . This book was released on 1987 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Reef Fish Community Structure [microform] : an Experimental Study Using Small Artificial Reefs in Barkley Sound, British Columbia

Author : Gascon, Dominique
Publisher : National Library of Canada
ISBN 13 : 9780315123724
Total Pages : 0 pages
Book Rating : 4.1/5 (237 download)

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Book Synopsis Reef Fish Community Structure [microform] : an Experimental Study Using Small Artificial Reefs in Barkley Sound, British Columbia by : Gascon, Dominique

Download or read book Reef Fish Community Structure [microform] : an Experimental Study Using Small Artificial Reefs in Barkley Sound, British Columbia written by Gascon, Dominique and published by National Library of Canada. This book was released on 1982 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using small artificial reefs made of cement blocks, a community of shallow water reef fishes was experimentally studied in Barkley Sound (British Columbia) to examine the structuring mechanisms in this assemblage The community under study inhabited a shallow reef made of rock boulders. The abundance of fish fluctuated with the seasons The species diversity of this fish community was low (H' = 0.3-10), one species (Coryphopterus nicho/si) comprising more than 80% of the individuals present Four species of rockfishes ( Sebastes caurinus, S. ma/iger, S. me/anops, and S. pinniger) and three species of benthic fishes (Hexagrammos decagrammus, Jordania zonope, and Artedius spp.) were also common. Experimental communities were established on ten identical artificial reefs made of cement blocks. Two series of reefs, built six months apart on sand 10 m away from the natural reef, tested the effects of seasons on community development. A third series, built in direct contact with the natural reef, examined the effects of distance and isolation on community development In each series a species equilibrium (approximately 6 species) was reached within six months The specific composition of the artificial reefs was similar to that of the natural reef, although species other than Coryphopterus nicho/si were more abundant Both juveniles and adults of all species were present, except for the rockfishes, which were represented only by young individuals. Tagging indicated that the benthic species remained permanently on the reefs, whereas a yearly turnover in rockfishes occurred The intensity of interactions between species was estimated by measuring shifts in habitat use on the artificial reefs. Only Sebastes me/anops showed consistent shifts in its space use in response to changes in the density of other species Only two of these shifts appeared to be the result of interspecific competition. Interactions between species, with the exception of S. me/anops had little effect on the spatial distribution of fish within the reefs. I examined the significance of the patterns of similarity between communities inhabiting identical habitats. High similarity values are usually interpreted as indicating the equilibrium status -- that is communities structured primarily by interspecific competition -- of a community, whereas low values are usually interpreted in the opposite direction -- i.e non-equilibrium communities structured by mechanisms other than interspecific competition (mostly stochastic events). This was tested using a randomization test. The null hypothesis of the test was that random colonization from the surrounding habitats was sufficient to explain the community structure on the artificial reefs. Six additional reefs (one third the original size) were built to test the effects of habitat size on community structure. The observed values on the reefs did not differ significantly from the null values, indicating that mechanisms, such as competition, were not required to explain the structure of the community. Habitat size had a strong effect, and the interpretations of previous studies were re-examined in light of this finding.

Seafloor heterogeneity: Artificial structures and marine ecosystem dynamics - recent advances

Author : Toyonobu Fujii
Publisher : Frontiers Media SA
ISBN 13 : 2832521797
Total Pages : 275 pages
Book Rating : 4.8/5 (325 download)

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Book Synopsis Seafloor heterogeneity: Artificial structures and marine ecosystem dynamics - recent advances by : Toyonobu Fujii

Download or read book Seafloor heterogeneity: Artificial structures and marine ecosystem dynamics - recent advances written by Toyonobu Fujii and published by Frontiers Media SA. This book was released on 2023-04-26 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Management of Natural Coastal Carbon Sinks

Author : Dan Laffoley
Publisher : IUCN
ISBN 13 : 283171205X
Total Pages : 64 pages
Book Rating : 4.8/5 (317 download)

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Book Synopsis The Management of Natural Coastal Carbon Sinks by : Dan Laffoley

Download or read book The Management of Natural Coastal Carbon Sinks written by Dan Laffoley and published by IUCN. This book was released on 2009 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Sustainable Fisheries Management

Author : E. Eric Knudsen
Publisher : CRC Press
ISBN 13 : 1439822670
Total Pages : 745 pages
Book Rating : 4.4/5 (398 download)

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Book Synopsis Sustainable Fisheries Management by : E. Eric Knudsen

Download or read book Sustainable Fisheries Management written by E. Eric Knudsen and published by CRC Press. This book was released on 2020-02-10 with total page 745 pages. Available in PDF, EPUB and Kindle. Book excerpt: What has happened to the salmon resource in the Pacific Northwest? Who is responsible and what can be done to reverse the decline in salmon populations? The responsibly falls on everyone involved - fishermen, resource managers and concerned citizens alike - to take the steps necessary to ensure that salmon populations make a full recovery. T

Fisheries Centre Research Reports

Author :
Publisher :
ISBN 13 :
Total Pages : 432 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Fisheries Centre Research Reports by :

Download or read book Fisheries Centre Research Reports written by and published by . This book was released on 2007 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Conservation and Environmentalism

Author : Robert C. Paehlke
Publisher : Routledge
ISBN 13 : 1136640002
Total Pages : 784 pages
Book Rating : 4.1/5 (366 download)

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Book Synopsis Conservation and Environmentalism by : Robert C. Paehlke

Download or read book Conservation and Environmentalism written by Robert C. Paehlke and published by Routledge. This book was released on 2013-04-03 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focusing on both problems and solutions, this authoritative reference work maintains a healthy balance between science and the social sciences in its coverage of all aspects of the environment. The book is arranged alphabetically and is divided into three major sections: Ecology, Pollution, and Sustainability. The list of 240 contributors reads like a who's who of the world's leading conservation and environmental professionals. Best Reference Source Outstanding Reference Source

Conservation and Environmentalism

Author : Robert Paehlke
Publisher : Taylor & Francis
ISBN 13 : 9780824061012
Total Pages : 810 pages
Book Rating : 4.0/5 (61 download)

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Book Synopsis Conservation and Environmentalism by : Robert Paehlke

Download or read book Conservation and Environmentalism written by Robert Paehlke and published by Taylor & Francis. This book was released on 1995 with total page 810 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Focusing on problems and solutions, this authoritative reference work covers all aspects of the environment, from the Everglades to the Himalayas, from legislation in Australia to pollution problems in Eastern Europe, from tropical rain forests to the Porcupine Caribou herd of the Alaskan and Canadian Arctic." "Some of the best-known environmental professionals from 14 countries around the world have written original articles for this multidisciplinary Encyclopedia, including Norman Myers, Eugene C. Hargrove, Reed F. Noss, Max Oelschlaeger, J. Baird Callicott, George Sessions, M. S. Swaminathan, Gilbert F. White, Michael E. Kraft, Michael P. Cohen, Paul Ekins, and many others."--BOOK JACKET.Title Summary field provided by Blackwell North America, Inc. All Rights Reserved

Oceanic Abstracts

Author :
Publisher :
ISBN 13 :
Total Pages : 900 pages
Book Rating : 4.X/5 (6 download)

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Book Synopsis Oceanic Abstracts by :

Download or read book Oceanic Abstracts written by and published by . This book was released on 1997-04 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt:

An Assessment of Assessments

Author :
Publisher : UNEP/Earthprint
ISBN 13 : 9789280729764
Total Pages : 436 pages
Book Rating : 4.7/5 (297 download)

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Book Synopsis An Assessment of Assessments by :

Download or read book An Assessment of Assessments written by and published by UNEP/Earthprint. This book was released on 2009 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite the central role oceans play in the economic, environmental and social affairs of the planet's 6.7 billion inhabitants, significant gaps exist in our understanding and management of the complex processes at work from the global climate system, to the water cycle and circulation of nutrients, to changes affecting marine habitats. In addition, the vastness of the world's oceans have for far too long been perceived as impervious and indestructible to human impact. To deal with this situation, improved monitoring and observation practices, regular assessments to provide a deeper understanding of the status and trends of environmental changes, and the know-how and ability to prevent, mitigate and adapt to these changes are urgently required. The UN General Assembly in 2005 -- recommended that a regular process for the global reporting and assessment of the state of the marine environment, including its socio-economic aspects (Regular Process), be initiated. The UN Environment Programme (UNEP) and the Intergovernmental Oceanographic Commission of UNESCO (IOC-UNESCO) were asked to serve as the lead agencies in the start-up phase that came to be known as the "Assessment of Assessments" (AoA). Under the AoA, an Expert Group have developed options and a framework for such a Regular Process, which can serve as the mechanism to keep the world's oceans and seas under continuing review.

Systematic Conservation Planning

Author : Chris Margules
Publisher : Cambridge University Press
ISBN 13 : 9780521878753
Total Pages : 278 pages
Book Rating : 4.8/5 (787 download)

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Book Synopsis Systematic Conservation Planning by : Chris Margules

Download or read book Systematic Conservation Planning written by Chris Margules and published by Cambridge University Press. This book was released on 2007-09-13 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: Systematic Conservation Planning provides a clear, comprehensive guide to the process of deriving a conservation area network for regions, which will best represent the biodiversity of regions in the most cost-effective way. The measurement of biodiversity, design of field sampling strategies, alongside different data treatment methods are detailed helping to provide a conceptual framework for identifying conservation area networks, underpinned by the concept of complementarity. Setting conservation targets and then multi-criteria analyses, using complementarity but bringing in other criteria reflecting competing uses of land or water, to show how conservation area networks can achieve conservation targets in ways that also allow for the production of food, fiber and shelter are also discussed. Providing a clear procedure for identifying conservation priority areas underpinned by cutting edge science, this book will be of interest to graduate students, academics, planners and decision makers dealing with natural resource use and exploitation, alongside conservation NGOs.