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Using Local And Scientific Perspectives To Understand Factors Affecting The Distribution Of Invasive Green Crab Carcinus Maenas L
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Book Synopsis USING LOCAL AND SCIENTIFIC PERSPECTIVES TO UNDERSTAND FACTORS AFFECTING THE DISTRIBUTION OF INVASIVE GREEN CRAB (CARCINUS MAENAS L.). by : Jessica Cosham
Download or read book USING LOCAL AND SCIENTIFIC PERSPECTIVES TO UNDERSTAND FACTORS AFFECTING THE DISTRIBUTION OF INVASIVE GREEN CRAB (CARCINUS MAENAS L.). written by Jessica Cosham and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental management is becoming more informed through the use of less conventional knowledge sources to understand environmental systems. Following this realization, our study accesses both local and scientific knowledge to improve understanding of which environmental factors drive local-scale distribution of an invasive species, the European Green Crab (Carcinus maenas L.). It also attempts to understand how C. maenas behaviour might differ in the South Shore area of Nova Scotia, Canada. We synthesized scientific knowledge through an extensive literature review, while interviewing local South Shore fishermen who have experience with C. maenas. While several environmental factors are delineated, our research also notes internal (i.e. age, sex, moult phase) and temporal (i.e. seasonal, tidal, diel) variables that affect local distribution patterns. Local knowledge of this species is still developing, however it may play a significant role in understanding the local distributions and movements of this species, especially as knowledge develops.
Book Synopsis Biotic Resistance and Other Factors Affecting the Distribution, Habitat Use, and Potential Impacts of Invasive European Green Crab, Carcinus Maenas, in the Northeastern Pacific by : Patrick Sean McDonald
Download or read book Biotic Resistance and Other Factors Affecting the Distribution, Habitat Use, and Potential Impacts of Invasive European Green Crab, Carcinus Maenas, in the Northeastern Pacific written by Patrick Sean McDonald and published by . This book was released on 2006 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ethnozoology by : Romulo Romeu Nobrega Alves
Download or read book Ethnozoology written by Romulo Romeu Nobrega Alves and published by Academic Press. This book was released on 2017-10-23 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ethnozoology: Animals In Our Lives represents the first book about this discipline, providing a discussion on key themes on human-animal interactions and their implications, along with recent major advances in research. Humans share the world with a bewildering variety of other animals, and have interacted with them in different ways. This variety of interactions (both past and present) is investigated through ethnozoology, which is a hybrid discipline structured with elements from both the natural and social sciences, as it seeks to understand how humans have perceived and interacted with faunal resources throughout history. In a broader context, ethnozoology, and its companion discipline, ethnobotany, form part of the larger body of the science of ethnobiology. In recent years, the importance of ethnozoological/ethnobiological studies has increasingly been recognized, unsurprisingly given the strong human influence on biodiversity. From the perspective of ethnozoology, the book addresses all aspects of human connection, animals and health, from its use in traditional medicine, to bioprospecting derivatives of fauna for pharmaceuticals, with expert contributions from leading researchers in the field. Draws on editors’ and contributors’ extensive research, experience and studies covering ethnozoology and ethnobiology Covers all aspects of human-animal interaction through the lens of this emerging discipline, with coverage of both domestic and wild animal topics Presents topics of great interest to a variety of researchers including those in wildlife/conservation (biologists, ecologists, conservationists) and domestic-related disciplines (psychologists, sociologists)
Book Synopsis Distribution and Biological Characteristics of European Green Crab, Carcinus Maenas, in British Columbia, 2006-2013 by : G. E. Gillespie
Download or read book Distribution and Biological Characteristics of European Green Crab, Carcinus Maenas, in British Columbia, 2006-2013 written by G. E. Gillespie and published by . This book was released on 2015 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: The European Green Crab, Carcinus maenas is native to coastal areas from northern Europe to North Africa. It is also a highly invasive species worldwide with reproductive populations in Australia, South Africa, North America and South America. In British Columbia, European Green Crabs were surveyed from 2006 to 2013. Data collected during annual surveys was used to elucidate C. maenas distribution, life history, growth and reproductive habits on the coast of British Columbia. Niche overlap with local crabs and other marine species was described in order to understand ecological impacts on native species by the establishment of C. maenas in British Columbia. In this document, methods and results related to location and catch rates, crab sizes, sex ratio and eggs, shell condition and colour, age structure and recruitment, native crab species, and bycatch are presented.--Includes text from document.
Book Synopsis Distribution and Biological Characteristics of European Green Crab, Carcinus Maenas, in British Columbia, 2006-2013 by : Graham E. Gillespie
Download or read book Distribution and Biological Characteristics of European Green Crab, Carcinus Maenas, in British Columbia, 2006-2013 written by Graham E. Gillespie and published by . This book was released on 2015 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ecophysiology of the European Green Crab (Carcinus maenas) and Related Species by : Dirk Weihrauch
Download or read book Ecophysiology of the European Green Crab (Carcinus maenas) and Related Species written by Dirk Weihrauch and published by Elsevier. This book was released on 2023-09-01 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecophysiology of the Green Shore Crab (Carcinus maenas) and Related Species: Mechanisms Behind the Success of a Global Invader provides an in-depth perspective of this devastatingly invasive coastal species. During the last 175 years, Carcinus maenas has spread around the globe by human activities. Because of its ability to flourish in a wide variety of ecosystems and outcompete native species it has been listed as one of the top 100 worst global invaders. Written by international experts, this book focuses on Carcinus maenas and discusses other brachyurans with similar physiologies as comparisons, including control systems and mechanisms used. This book serves as a valuable resource for researchers in marine biology and invasive biology, as well as for university lecturers, government or environmental agencies. Gathers all information on ecological physiology of this important species into one place Discusses how this one species of crab has managed to be spread around the globe and survive in many different environments Features a chapter by First Nations members on how this species may impact indigenous fisheries and culture
Book Synopsis In the Wrong Place - Alien Marine Crustaceans: Distribution, Biology and Impacts by : Bella S. Galil
Download or read book In the Wrong Place - Alien Marine Crustaceans: Distribution, Biology and Impacts written by Bella S. Galil and published by Springer Science & Business Media. This book was released on 2011-04-01 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt: In The Wrong Place: Alien Marine Crustaceans - Distribution, Biology And Impacts provides a unique view into the remarkable story of how shrimps, crabs, and lobsters – and their many relatives – have been distributed around the world by human activity, and the profound implications of this global reorganization of biodiversity for marine conservation biology. Many crustaceans form the base of marine food chains, and are often prominent predators and competitors acting as ecological engineers in marine ecosystems. Commencing in the 1800s global commerce began to move hundreds – perhaps thousands – of species of marine crustaceans across oceans and between continents, both intentionally and unintentionally. This book tells the story of these invasions from Arctic waters to tropical shores, highlighting not only the importance and impact of all prominent crustacean invasions in the world's oceans, but also the commercial exploitation of invasive crabs and shrimps. Topics explored for the first time in one volume include the historical roots of man's impact on crustacean biogeography, the global dispersal of crabs, barnacle invasions, insights into the potential scale of tropical invasions, the history of the world's most widely cultured shrimp, the invasive history and management of red king crabs in Norway, Chinese mitten crabs in England, and American blue crabs in Europe, the evolutionary ecology of green crabs, and many other subjects as well, touching upon all ocean shores.
Book Synopsis Global Invader by : Sylvia Behrens Yamada
Download or read book Global Invader written by Sylvia Behrens Yamada and published by . This book was released on 2001 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Writing to educate those concerned with sea life in the Pacific Northwest, Yamada (zoology, Oregon State U., Corvallis) traces the generally devastating impact of the invasive European green crab with reference to research carried out in New England, California, Oregon, South Africa, Australia, and Tasmania. A full description of the biology and life history of the European green crab is provided, along with photos, glossary, list of references, and descriptive table of Pacific Northwest crabs. Annotation copyrighted by Book News, Inc., Portland, OR.
Book Synopsis Temperature and Predator Effects on Green Crabs (Carcinus Maenas) and Their Distribution in South Slough National Estuarine Research Reserve by :
Download or read book Temperature and Predator Effects on Green Crabs (Carcinus Maenas) and Their Distribution in South Slough National Estuarine Research Reserve written by and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The invasive green crab (Carcinus maenas) has increased in abundance and distribution among Oregon's estuaries. Its global success in establishing in new environments and tolerance for abiotic stressors, such as temperature, raises concern for C. maenas to negatively influence native crab species, especially given global climate change. To improve in predicting invasion impacts, this work analyzed the results from a controlled tank experiment at Portland State University and the field data on a population of C. maenas in South Slough National Estuarine Research Reserve (SSNERR). The aquarium experiment documented predation pressure on C. maenas across a range of temperatures (9° to 30°C) and predatory crabs Callinectes sapidus, Cancer productus, and, as a control C. maenas. The behavioral responses of prey C. maenas were observed across temperature and predator combinations. There were five categories of behavioral responses measured in time duration. The west Atlantic C. sapidus preyed heavily on C. maenas, especially at warmer water temperatures; however, east Pacific C. productus preyed much less on C. maenas and only at the cold temperatures, suggesting different trajectories of biotic resistance across the coasts as waters warm. Crab behavior aligned with the predation findings. For example, C. productus were most active at 9°C and all died at 27°C and higher. In tanks with C. productus, C. maenas were most aggressive at warm temperatures. In contrast C. maenas spent more time feeding at 9°C when in tanks with C. sapidus and, surprisingly, also with C. productus. Crab trap data from SSNERR was plotted on a map to identify surrounding habitat and bottom substrate of areas with high catch per unit effort (CPUE) of C. maenas in the last six years. Mean CPUE of C. maenas was below five throughout the SSNERR region with sites closest to the mouth of the estuary having the highest CPUE rates. Little structure was surrounding trapping sites; however, there was seagrass at sites with the highest CPUE of C. maenas. The mean CPUE difference of native species prior to (2002-2016) and following (2016-2021) C. maenas abundance increase in 2016 was compared to the mean CPUE of C. maenas in the last six years. Results indicated no correlation between the CPUE of C. maenas influencing the difference of CPUE of native crab species. The tolerance and predation avoidance demonstrated from prey C. maenas in warmer temperatures indicate their ability to acclimate and/or adapt in stressful climate change conditions of higher water temperatures. This is of concern due to the increasing potential to negatively affect Oregon native crab species, such as C. productus over time.
Book Synopsis Holistic Approaches for Invasive Species Management by : Bobbie Buzzell
Download or read book Holistic Approaches for Invasive Species Management written by Bobbie Buzzell and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Establishment of the European green crab (Carcinus maenas) on the west coast United States has led to concerns regarding loss of eelgrass beds and influence on marine communities. To begin examining whether predators can potentially buffer green crab expansion, I studied river otter (Lontra canadensis) diet from scat remains and estimated green crab abundance from removal trapping efforts. River otter scats on the Wa'atch and Tsoo-Yess rivers, Washington, USA, were collected during August-September 2018 and April-September 2019. Hard remains of prey were reported as percent frequency of occurrence, and green crab prey were compared to monthly catch-per-unit-effort (CPUE). Scats collected from the Tsoo-Yess River contained no green crab, perhaps due to the relatively low abundance of green crab compared to other crustacean and fish prey. River otters consumed green crab in the Wa'atch River, but its low occurrence in their diet (0.7-5.2%) suggests that they were not an important prey source. However, I hypothesize that if green crab numbers increase there will be a subsequent increase in consumption by river otters and, as such, suggest documenting the population status of green crabs in both rivers, and conducting additional predator-prey diet studies to gauge the potential for long-term biotic resistance of green crab populations.
Book Synopsis Recent Trends in the Abundance of the Invasive Green Crab (Carcinus Maenas) in Bras D'Or Lakes and Eastern Nova Scotia Based on Trap Surveys by : M. J. Tremblay
Download or read book Recent Trends in the Abundance of the Invasive Green Crab (Carcinus Maenas) in Bras D'Or Lakes and Eastern Nova Scotia Based on Trap Surveys written by M. J. Tremblay and published by . This book was released on 2006 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Trapping surveys for the invasive green crab (Carcinus maenas) were undertaken in Eastern Nova Scotia and in the Bras d'Or Lakes in 1999-2000 and 2005. Interviews were also conducted with fishermen and other coastal inhabitants. Green crab were widespread throughout the sampling area and showed no change in range over the time period. Green crab abundance either decreased or did not change between 1999-2000 and 2005. Catch rates of green crab in the Bras d'Or Lakes were lower in 2005 than the earlier period. The decline in green crab abundance in Bras d'Or Lakes was not clearly linked to lower water temperatures. Outside of the Bras d'Or Lakes, there were no significant differences in green crab catch rate between 1999-2000 and 2005.--Abstract.
Book Synopsis Assessing Impacts of Green Crab (Carcinus Maenas) on the Abundance of American Lobster (Homarus Americaus) in Nature by : Mark Alan Wilcox
Download or read book Assessing Impacts of Green Crab (Carcinus Maenas) on the Abundance of American Lobster (Homarus Americaus) in Nature written by Mark Alan Wilcox and published by . This book was released on 2012 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigating Presence/absence of Invasive European Green Crab in Southern Southeast Alaska by : Tammy J. Davis
Download or read book Investigating Presence/absence of Invasive European Green Crab in Southern Southeast Alaska written by Tammy J. Davis and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this study are to detect the presence of invasive European green crab Carcinus maenas in nearshore habitats at locations in southern Southeast Alaska, including Revillagigedo and Gravina Islands, targeted for potential suitability for establishment. Where the invasive crab is detected, additional surveys will be implemented to determine the magnitude of abundance and delineate distribution. ShoreZone is used to identify survey locations. Roadside and remote shoreline molt and trapping surveys will be conducted. Alaska Department of Fish and Game will use presence and absence data to understand the extent of the aquatic invasive species in southern Southeast Alaska and may inform future assessment.
Book Synopsis The Effect of Temperature on Phenotypes of the Invasive European Green Crab by :
Download or read book The Effect of Temperature on Phenotypes of the Invasive European Green Crab written by and published by . This book was released on 2013 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: Invasion physiology is an emerging field that endeavors to understand the influence of physiological traits on the establishment of non-native species in novel environments. The invasive European green crab,Carcinus maenas, is one of the world's most successful aquatic invaders, and is currently distributed across temperate marine ecosystems globally. The work presented here explored the thermal physiology of this species, and has highlighted several physiological traits that have likely influenced establishment success. Intraspecific comparisons of crabs sampled from the northern and southern edges of their recipient, or invaded range on the west coast of North America have identified both organismal and cellular physiological difference with respect to upper and lower thermal tolerances. Crabs sampled from British Columbia, Canada (BC) had a significantly lower mean upper thermal tolerance threshold and heat shock protein synthesis, Hsp70, compared to their warm acclimated conspecifics sampled from California (CA). These differential physiologic responses may be rooted in the disparate natural thermal habitats that each population occupies within their respective environments. The ability of this species to extend its current range limits was also investigated. Range expansion to the south has been limited, and is likely restricted by this species lack of adaptation to warmer temperatures. Because range expansion has been chiefly northward, characterizing this species' response to cold stress can identify whether colder temperatures poleward may limit further range expansion. Cold tolerance capacity was determined in the laboratory, and crabs sampled from Vancouver Island, British Columbia were able to withstand the over-wintering thermal regime that occurs in Sitka, Alaska, a site that is currently beyond the range limits of this species. Furthermore, intraspecific assessments found that the cold acclimated BC population exposed to cold shock significantly down regulated protein levels of cyclin D1, cell cycle modulator. Distinct differences in carapace width (CW) were detected along the thermal gradient present in the green crabs' range. This variation in body size was utilized to the test the temperature size rule hypothesis for ectotherms. Simply stated, the temperature size rule is the tendency for ectotherms to develop slower but mature to a larger body sizes at cooler temperatures. The results supported this hypothesis as crabs sampled from the warm portion of the range were found to be smaller than crabs sampled from the colder portion of the range. This pattern was detected along the native range as well. Differences in body size have the potential to influence the scope of invasion; larger individuals are generally more fecund and longer lived, which can increase both the intensity and frequency of larval dispersal that could further propel range expansion. The physiologic properties that the green crab possesses which may influence invasion success were examined using peer-reviewed literature with the aim of determining if these physiological traits confer invasion success across taxa. This analysis tested four hypotheses: 1) Broad geographic temperature tolerances (thermal width) confer a higher upper thermal tolerance threshold when comparing invasive and native species. 2) The upper thermal extreme experienced in nature is correlated with upper thermal tolerance threshold. 3) Protein chaperone expression, a cellular mechanism underlying thermal tolerance threshold, is greater in invasive organisms than in native ones. 4) Acclimation to higher temperatures can promote a greater range of thermal tolerance for invasives compared to natives. These preliminary results generally support the four stated hypotheses, and provide a solid foundation for further studies to explore and identify physiologic traits that facilitate invasion success. Overall, these studies investigated the thermal physiology of Carcinus maenasfrom an invasive metapopulation and have brought about significant advances in our understanding of what physiologic traits correlate to invasion success in this species. In addition, the data presented here can aid resource managers in identifying habitats, based on thermal tolerance measurements that fit the criteria for invasion. Understanding how invasive organisms vary with respect to thermal tolerance can aid our understanding the patterns and processes of species invasions.
Book Synopsis Projecting Range Expansion of Invasive European Green Crabs (Carcinus Maenas) to Alaska by : Anson Hemingway Hines
Download or read book Projecting Range Expansion of Invasive European Green Crabs (Carcinus Maenas) to Alaska written by Anson Hemingway Hines and published by . This book was released on 2004 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: The establishment of self-sustaining populations of the invasive species Carcinus maenas, or European Green Crab, in Alaska may be prevented by environmental conditions. Laboratory experiements measured temperature and salinity conditions required for successful development of Green Crab larvae to test this hypothesis.
Book Synopsis Biogeographic Variation in Abundance, Habitat, and Behavior of the European Green Crab, Carcinus Maenas by : Rikke Kvist Preisler
Download or read book Biogeographic Variation in Abundance, Habitat, and Behavior of the European Green Crab, Carcinus Maenas written by Rikke Kvist Preisler and published by . This book was released on 2010 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Use of Tethered Prey for Estimating the Impact of the Invasive European Green Crab by : Laura L. Hauck
Download or read book Use of Tethered Prey for Estimating the Impact of the Invasive European Green Crab written by Laura L. Hauck and published by . This book was released on 2000 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: Various mollusks, including small bivalves and gastropod snails, are a common food source for intertidal crabs. Prey opening techniques used on hard-shell prey are dependent on claw size and morphology. For example, large, strong claws can crush a snail outright while smaller, weaker claws leave characteristic peels, pulls and upper whorl peels. It is therefore often possible to identify the predator responsible for a specific breakage pattern. A feeding study was conducted to "fingerprint" the shell opening techniques of the European green crab and five common native Pacific Northwest crab species on three size classes of the intertidal snail Littorina sitkana. A multiple linear regression analysis utilizing a statistical program resulted in an odds ratio that identified the crab species most likely to perform a given technique. For example, the green crab was 19 times more likely to utilize the pulling technique than a Dungeness crab, while the Dungeness crab primarily relied on crushing. The green crab was the only crab species to utilize an upper whorl peel technique. Shell breakage patterns found on snails tethered to predation lines at various sampling sites in Coos Bay and Yaquina Bay, Oregon, were then used to identify the size and species of foraging crab predators at those sites. A predation line is a tool designed to quantify the foraging impact upon small gastropod snails by various crab species in the intertidal zone. A given number of Littorina sitkana snails are attached to monofilament line with marine epoxy. These lines are then tied to metal rebar rods and left in the intertidal for one full tidal cycle. The fate of the snails on the lines is then scored as: live, attempted peel, peeled, pulled or crushed. The final results yield the overall crab foraging rate and indicate the most likely crab species responsible for the predation. This information can be very useful when comparing predation rates between sampling sites that host the invasive European green crab, and those sites that have not yet been invaded.
