Reproductive Characteristics And Behavior Of The Green Porcelain Crab Petrolisthes Armatus In Its Introduced Range

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Reproductive Characteristics and Behavior of the Green Porcelain Crab (Petrolisthes Armatus) in Its Introduced Range

Author : Ann Wassick
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)

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Book Synopsis Reproductive Characteristics and Behavior of the Green Porcelain Crab (Petrolisthes Armatus) in Its Introduced Range by : Ann Wassick

Download or read book Reproductive Characteristics and Behavior of the Green Porcelain Crab (Petrolisthes Armatus) in Its Introduced Range written by Ann Wassick and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Invasive species are one of the many threats faced by marine habitats today and there are many characteristics that successful invaders share, including high reproductive output potential and small size at sexual maturity. One invasive species, the green porcelain crab (Petrolisthes armatus) is common in its introduced range, however its reproductive characteristics including mating behaviors are not known or have not been directly assessed. Crabs were collected from five locations in the introduced range (Wilmington, NC; Georgetown, SC; Charleston, SC; Bluffton, SC; and Savannah, GA) at two sites at each location, with small sample sizes at the Wilmington sites precluding their inclusion in analyses. At each site, ovigerous female abundances, reproductive output, and egg number and egg quality measurements were calculated. At two sites, Town Creek and Pinckney Landing, allometric relationships, based on eight body measurements, were assessed to determine size at sexual maturity. I compared fecundity estimates and size at sexual maturity among populations along a latitudinal gradient and reproductive output and smallest ovigerous female to estimates in the native range. At Grice only, I hand collected crabs to conduct a laboratory experiment to examine the effects of sex ratio (all-male, all-female and mixed-sex) on crab spacing measured by nearest-neighbor (NN) distances and inferred potential mate acquisition behaviors. Crabs held in aerated tanks under a constant density and three sex ratio treatments and were observed twice daily for position and interactions for five day durations. Mean NN distances calculated for focal crabs in each tank were compared between mixed-sex and single-sex treatments. Crabs at the northern locations, which are at the range limit of P. armatus within the introduced range, appear to be maximizing reproductive potential and NN results are consistent with male P. armatus protecting access to prospective mates. Results of this study have helped fill knowledge gaps for this species in its introduced range.

Population Characteristics and Reproductive Trends of the Green Porcelain Crab, Petrolisthes Armatus, in Its Introduced Range

Author : Teresa Popp
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (111 download)

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Book Synopsis Population Characteristics and Reproductive Trends of the Green Porcelain Crab, Petrolisthes Armatus, in Its Introduced Range by : Teresa Popp

Download or read book Population Characteristics and Reproductive Trends of the Green Porcelain Crab, Petrolisthes Armatus, in Its Introduced Range written by Teresa Popp and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The green porcelain crab, Petrolisthes armatus, is a highly abundant invader on intertidal oyster reefs along the southeastern coast of the US. Its poleward range expansion is thought to be thermally limited, and predicted to shift as water temperatures rise. Along with its thermal tolerance in the invasive range, several of its reproductive characteristics favor expansion. What remains unclear is whether this thermal intolerance for cold temperatures affects the reproductive potential of invasive populations. I conducted a field study monitoring the invasive population in Charleston, SC, a laboratory experiment determining the time between broods, and examined specimens from a long-term collection to determine if timing of larval recruitment to an area is related to the severity of the previous winter. Petrolisthes armatus abundances varied seasonally, with highest abundances during summer months and lowest during winter months. After a mild winter, adult-sized overwintering crabs began the reproductive season in spring as water temperatures increased. After recruits were first observed, they became part of the reproductive population 6-8 weeks later. Conversely, after a harsh winter, crabs were not present on the oyster reef and abundances were low throughout spring and early summer. However, 5-7 weeks after recruits were observed in June, adult abundances recovered to similarly high-densities observed the prior year. Both the field and laboratory data indicate that females are able to turn over broods within 4-6 days after releasing eggs. By examining P. armatus larvae in samples collected over a 24-year period in an estuary near the species’ range limit, I determined that larval recruitment started later in years after winters with several consecutive cold days where water temperatures declined to 5-6°C. In addition, earlier starts to recruitment were positively correlated with the duration or recruitment. It appears that if the frequency of harsh winters decreases, the thermal barrier inhibiting further range expansion for P. armatus will become less effective.

Populations of the Green Porcelain Crab, Petrolisthes Armatus, Vary in Cold Tolerance Within the Species' Northernmost Invaded Range

Author : Kevin Mack
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)

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Book Synopsis Populations of the Green Porcelain Crab, Petrolisthes Armatus, Vary in Cold Tolerance Within the Species' Northernmost Invaded Range by : Kevin Mack

Download or read book Populations of the Green Porcelain Crab, Petrolisthes Armatus, Vary in Cold Tolerance Within the Species' Northernmost Invaded Range written by Kevin Mack and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The green porcelain crab, Petrolisthes armatus, is a highly abundant invader of intertidal oyster reef habitats in Atlantic waters of the southeastern US. Cold water temperatures likely limit the species' poleward range, which is predicted to shift as water temperatures rise. I established five study locations along the species' poleward expansion front from Savannah, GA (Skidaway Island) to Wilmington, NC. Trends in P. armatus populations and resident crab assemblages were assessed seasonally at each location, and live crabs were collected for cold tolerance incubation trials. The taxonomic composition of crab assemblages differed between locations within each season, with obvious dissimilarities between northern and southern locations in the summer and fall, primarily driven by differences in P. armatus abundance. Abundances were highest in the summer and decreased from southern to northern locations. Sex ratios varied seasonally; becoming male biased in the fall. Adult-sized crabs were collected in the spring, indicating that overwintering of adults does occur. Chronic cold temperature trials were conducted seasonally to expose crabs from each location to decreasing water temperatures and assess sublethal and lethal effects. Crabs from northern locations were more tolerant of cold water temperatures in the fall, possibly due to increased acclimatization plasticity present in individuals from northern populations in response to a comparatively colder environment. Females were more tolerant than males in the summer and spring, possibly due to differences in male and female reproductive stressors. Smaller crabs were more tolerant than larger crabs regardless of season indicating molt cycle may play a role in cold tolerance. Given the trend of warming ocean waters, which may move thermal barriers to P. armatus range expansion to higher latitudes, and apparent higher cold tolerance in poleward populations, there is potential that this species will continue its poleward range expansion.

The Reproductive Response of Petrolisthes Armatus to Cold Temperatures in Its Non-native Range

Author : Juliana Ventresca
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (132 download)

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Book Synopsis The Reproductive Response of Petrolisthes Armatus to Cold Temperatures in Its Non-native Range by : Juliana Ventresca

Download or read book The Reproductive Response of Petrolisthes Armatus to Cold Temperatures in Its Non-native Range written by Juliana Ventresca and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The green porcelain crab (Petrolisthes armatus) is an anomuran crab that, since the mid-1990s, has expanded its range on intertidal oyster reefs from Florida to as far north as Wilmington, North Carolina, USA. Little is known about how this range expansion is occurring, although warming ocean waters may be involved, and cold winter temperatures are thought to be limiting further range expansion. One factor that could be limited by cold temperature is reproductive ability. Reproduction of this species in its non-native range does not occur year-round as it does in the native range. To test whether low temperatures affect reproductive seasonality through embryo development, hatching, or larval survival, experiments were conducted in conjunction with bi-weekly, year-round sampling of resident crab assemblages on an intertidal oyster reef in Charleston, SC. These studies document ovigery rates in relation to ambient temperature variation. Results of this study display how embryo development and hatching severely decline once temperatures reach below eighteen degrees Celsius. Additionally, larval physiology is negatively affected as water temperatures decrease, as seen through the linear relationship between larval heartrate and temperature. Results of this study are vital to forming more accurate predictions of the species’ further range expansion through the establishment of self-sustaining populations as climate change affects water temperatures.

Larval Behavior and Hatching in the Green Porcelain Crab Petrolisthes Armatus

Author : Meghan Elizabeth Buckley
Publisher :
ISBN 13 :
Total Pages : 142 pages
Book Rating : 4.:/5 (831 download)

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Book Synopsis Larval Behavior and Hatching in the Green Porcelain Crab Petrolisthes Armatus by : Meghan Elizabeth Buckley

Download or read book Larval Behavior and Hatching in the Green Porcelain Crab Petrolisthes Armatus written by Meghan Elizabeth Buckley and published by . This book was released on 2012 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Role of Biotic Resistance Through Predation on the Invasion Success of the Green Porcelain Crab (Petrolisthes Armatus) Into Nearshore Oyster Reef Communities

Download The Role of Biotic Resistance Through Predation on the Invasion Success of the Green Porcelain Crab (Petrolisthes Armatus) Into Nearshore Oyster Reef Communities PDF Online Free

Author : Kaitlin Alyse Kinney
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (15 download)

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Book Synopsis The Role of Biotic Resistance Through Predation on the Invasion Success of the Green Porcelain Crab (Petrolisthes Armatus) Into Nearshore Oyster Reef Communities by : Kaitlin Alyse Kinney

Download or read book The Role of Biotic Resistance Through Predation on the Invasion Success of the Green Porcelain Crab (Petrolisthes Armatus) Into Nearshore Oyster Reef Communities written by Kaitlin Alyse Kinney and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The northward spread of the non-native, invasive filter feeding crab Petrolisthes armatus into oyster reef communities along the Southeastern US is hypothesized to be limited by cold snaps associated with northern winters. However, several native predators in oyster reefs have been shown to consume this abundant and profitable prey item, suggesting that biotic resistance through predation may be an additional factor limiting its northward spread. My objectives were to 1) determine if the per capita predation risk exerted by native predators might be a factor that explains the current distribution of P. armatus, and 2) test whether the relative abundance of alternative native prey affects the consumption and preference of P. armatus by a native predatory crab Panopeus herbstii. I conducted a field study to quantify predation risk across 8 invaded estuary sites from St. Augustine, FL to North Inlet, SC and conducted a lab experiment to quantify the consumption of P. armatus when in low to high abundance relative to alternative native prey. While predation rates were high (68.2 – 98.2%) across sites, there was no relationship between predation and latitude across the 8 invaded estuaries. Furthermore, while P. herbstii increased consumption of P. armatus in response to increased abundance in the tank, P. herbstii always showed a preference for native prey regardless of its relative abundance. Overall, I found no evidence of biotic resistance through predation, suggesting that native predators do not prevent the spread of P. armatus and this species is likely to continue its expansion into northern waters as sea temperatures increase with climate change.

The Role of Individual Learning and Dietary Preference in the Consumption of the Invasive Green Porcelain Crab, Petrolisthes Armatus, by Native Crab Predators

Download The Role of Individual Learning and Dietary Preference in the Consumption of the Invasive Green Porcelain Crab, Petrolisthes Armatus, by Native Crab Predators PDF Online Free

Author : Chelsea Helene Crosby
Publisher :
ISBN 13 :
Total Pages : 152 pages
Book Rating : 4.:/5 (11 download)

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Book Synopsis The Role of Individual Learning and Dietary Preference in the Consumption of the Invasive Green Porcelain Crab, Petrolisthes Armatus, by Native Crab Predators by : Chelsea Helene Crosby

Download or read book The Role of Individual Learning and Dietary Preference in the Consumption of the Invasive Green Porcelain Crab, Petrolisthes Armatus, by Native Crab Predators written by Chelsea Helene Crosby and published by . This book was released on 2018 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: I further examined patterns of diet and prey preference in a population of native C. sapidus that has co-occurred with invasive P. armatus for 24 years. Although C. sapidus readily consumes P. armatus when given no-choice of alternative prey, when given a choice between alternative native prey and P. armatus, I found that C. sapidus rarely incorporated P. armatus into its diet. In addition, I found very limited within- population, individual variation in diet of C. sapidus. This is in contrast to previous work demonstrating that native P. herbstii predators exhibit considerable individual variation in diet, with some individual predators beginning to specialize on the invasive P. armatus, but others avoiding the species completely. These findings suggest that both native predators exert limited predation pressure (i.e. partial enemy release) on P. armatus, which likely contributes to its continued invasion success.

Biogeographic Variation in Abundance, Habitat, and Behavior of the European Green Crab, Carcinus Maenas

Author : Rikke Kvist Preisler
Publisher :
ISBN 13 :
Total Pages : 292 pages
Book Rating : 4.:/5 (84 download)

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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:

Fine Scale Genetic Structure, Dispersal, and Variable Recruitment in the Flat Porcelain Crab, Petrolisthes Cinctipes, Along the Northern California Coast

Download Fine Scale Genetic Structure, Dispersal, and Variable Recruitment in the Flat Porcelain Crab, Petrolisthes Cinctipes, Along the Northern California Coast PDF Online Free

Author : Chris D. Griesemer
Publisher :
ISBN 13 : 9780438627451
Total Pages : pages
Book Rating : 4.6/5 (274 download)

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Book Synopsis Fine Scale Genetic Structure, Dispersal, and Variable Recruitment in the Flat Porcelain Crab, Petrolisthes Cinctipes, Along the Northern California Coast by : Chris D. Griesemer

Download or read book Fine Scale Genetic Structure, Dispersal, and Variable Recruitment in the Flat Porcelain Crab, Petrolisthes Cinctipes, Along the Northern California Coast written by Chris D. Griesemer and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The advent of increasingly affordable next-generation sequencing technologies are key to understanding the role dispersal, drift and selection play in producing signals of population divergence in many marine species. In particular, dispersal has been difficult to track in the oceans, obscuring its contributions to population structure. The dispersing larval phase of the flat porcelain crab, Petrolisthes cinctipes, exhibits behaviors that likely restrict its along-shore displacement despite a rather long development time at sea. In this work, I attempted to resolve previously detected chaotic patterns among P. cinctipes populations with a published Bayesian model showing that a substantial proportion of larvae likely recruit back to their natal populations. I used a large SNP (single nucleotide polymorphism) dataset to (1) analyze 159 adult crabs from 15 populations for patterns of genetic divergence and (2) directly assign 71 returning larvae back to their population of origin. Admixture results and discriminant analysis of principal components showed a strong signal of panmixia across northern California, making larval assignment impractical. Markers putatively under selection revealed the only clear break in the sampling range—between the southernmost population (just south of San Francisco Bay) and the remaining populations to the north. Despite this panmixia, P. cinctipes population genetics is also characterized by weak chaotic patterns, where populations at close proximity may be more diverged than those separated by hundreds of kilometers. Furthermore, we have previous evidence that such patterns change year-to-year. Underlying this phenomenon might be finer-structured processes that produce weak and ephemeral signals of divergence. A handful of recent studies have shown that cohesive dispersal of related individuals may provide a mechanism for generating such signals. I test for the possibility that cohesive dispersal of related larvae may contribute to observed chaotic patterns in Petrolisthes cinctipes because larval crabs exhibit clustered association with conspecifics throughout their dispersal, settling onshore gregariously in age-unified cohorts. These aspects of its life history point to the possibility of long-term kin association. Using a bank of 1,268 SNPs, I characterized the pairwise relatedness between individuals as well as within-group average relatedness of five settling cohorts of post-larvae collected in 2014. No pair exhibited relatedness greater than would be expected among non-relatives, and group relatedness measurements did not differ significantly from zero. It may be that P. cinctipes larvae are unable to maintain cohesion due to the extreme turbulence of the nearshore and surfzone environments. These same barriers to cohesive delivery of siblings may also be key to our understanding of variation in recruitment in this shore crab. In the course of my genetic sampling efforts among 14 sites across three years, I uncovered a pattern of little to no recruitment in a 100 km section of the Sonoma-Mendocino County coastline. This “recruitment gap” persisted for the years 2012 and 2013, disappearing in 2014 and leading me to wonder what might have driven the spatiotemporal variation. I measured a number of potential drivers at each site, obtained regional and basin-scale indices thought to relate to variation in recruitment. All predictor variables were used in a regression tree analysis that indicated local effects of surfzone width and the proportion of each site’s exposure to northwest compass direction. The temporal variation among years was attributed to patterns of relatively high temperature in 2014, though this result is confounded by the limitations of only three years of data. Despite the clear implication of site-level variables as drivers of the recruitment patterns, I discuss the results in the context possible influences across spatial and temporal scales, and highlight the ways in which knowledge of porcelain crab biology enriches our ability to infer a recruitment variability narrative in this system.

Walking Sideways

Author : Judith S. Weis
Publisher : Cornell University Press
ISBN 13 : 0801466040
Total Pages : 256 pages
Book Rating : 4.8/5 (14 download)

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Book Synopsis Walking Sideways by : Judith S. Weis

Download or read book Walking Sideways written by Judith S. Weis and published by Cornell University Press. This book was released on 2012-10-23 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world's nearly 7,000 species of crabs are immediately recognizable by their claws, sideways movement, stalked eyes, and thick outer shells. These common crustaceans are found internationally, thriving in various habitats from the edge of the sea to the depths of the ocean, in fresh water or on land. Despite having the same basic body type as decapod crustaceans-true crabs have heavy exoskeletons and ten limbs with front pincer claws-crabs come in an enormous variety of shapes and sizes, from the near microscopic to the giant Japanese spider crab. In Walking Sideways, Judith S. Weis provides an engaging and informative tour of the remarkable world of crabs, highlighting their unique biology and natural history. She introduces us to recently discovered crabs such as the Yeti crab found in deep sea vents, explains what scientists are learning about blue and hermit crabs commonly found at the shore, and gives us insight into the lifecycles of the king and Dungeness crabs typically seen only on dinner plates. Among the topics Weis covers are the evolution and classification of crabs, their habitats, unique adaptations to water and land, reproduction and development, behavior, ecology, and threats, including up-to-date research. Crabs are of special interest to biologists for their communication behaviors, sexual dimorphism, and use of chemical stimuli and touch receptors, and Weis explains the importance of new scientific discoveries. In addition to the traditional ten-legged crabs, the book also treats those that appear eight-legged, including hermit crabs, king crabs, and sand crabs. Sidebars address topics of special interest, such as the relationship of lobsters to crabs and medical uses of compounds derived from horseshoe crabs (which aren't really crabs). While Weis emphasizes conservation and the threats that crabs face, she also addresses the use of crabs as food (detailing how crabs are caught and cooked) and their commercial value from fisheries and aquaculture. She highlights other interactions between crabs and people, including keeping hermit crabs as pets or studying marine species in the laboratory and field. Reminding us of characters such as The Little Mermaid's Sebastian and Sherman Lagoon's Hawthorne, she also surveys the role of crabs in literature (for both children and adults), film, and television, as well in mythology and astrology. With illustrations that offer delightful visual evidence of crab diversity and their unique behaviors, Walking Sideways will appeal to anyone who has encountered these fascinating animals on the beach, at an aquarium, or in the kitchen.

Mating Systems and Strategies

Author : Stephen M. Shuster
Publisher : Princeton University Press
ISBN 13 : 0691206880
Total Pages : pages
Book Rating : 4.6/5 (912 download)

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Book Synopsis Mating Systems and Strategies by : Stephen M. Shuster

Download or read book Mating Systems and Strategies written by Stephen M. Shuster and published by Princeton University Press. This book was released on 2019-12-31 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the first unified conceptual and statistical framework for understanding the evolution of reproductive strategies. Using the concept of the opportunity for sexual selection, the authors illustrate how and why sexual selection, though restricted to one sex and opposed in the other, is one of the strongest and fastest of all evolutionary forces. They offer a statistical framework for studying mating system evolution and apply it to patterns of alternative mating strategies. In doing so, they provide a method for quantifying how the strength of sexual selection is affected by the ecological and life history processes that influence females' spatial and temporal clustering and reproductive schedules. Directly challenging verbal evolutionary models that attempt to explain reproductive behavior without quantitative reference to evolutionary genetics, this book establishes a more solid theoretical foundation for the field. Among the weaknesses the authors find in the existing data is the apparent ubiquity of condition-dependent mating tactics. They identify factors likely to contribute to the evolution of alternative mating strategies--which they argue are more common than generally believed--and illustrate how to measure the strength of selection acting on them. Lastly, they offer predictions on the covariation of mating systems and strategies, consider the underlying developmental biology behind male polyphenism, and propose directions for future research. Informed by genetics, this is a comprehensive and rigorous new approach to explaining mating systems and strategies that will influence a wide swath of evolutionary biology.

Sexual Biology and Reproduction in Crustaceans

Author : Thanumalaya Subramoniam
Publisher : Academic Press
ISBN 13 : 0128096063
Total Pages : 528 pages
Book Rating : 4.1/5 (28 download)

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Book Synopsis Sexual Biology and Reproduction in Crustaceans by : Thanumalaya Subramoniam

Download or read book Sexual Biology and Reproduction in Crustaceans written by Thanumalaya Subramoniam and published by Academic Press. This book was released on 2016-09-27 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sexual Biology and Reproduction in Crustaceans covers crustacean reproduction as it deals with the structural morphology of the gamete-producing primary sex organs, such as the testis and ovary, the formation and maturation of gametes, their fusion during fertilization, and embryonic development that lead to the release of larvae. Constituting a diverse assemblage of animals, crustaceans are best known by their common representatives, such as shrimps, lobsters, and crabs, but also include many more less familiar, but biologically important forms. This work covers the variety of ways in which both male and female gametes are produced by evolving different sexual systems in crustaceans, the range of reproductive systems, and the accordingly, and highly diverse, mechanistic modes of sex determination. In addition, the book features such topics as genetic and environmental determinants in sex determination pattern, variability of mechanisms of fertilization among different species, the origin of different mating systems, the associated mating and brooding behaviors, and the adaptive ability to different environmental conditions with discussion on the evolutionary ecology of social and sexual systems in certain species, which have shown eusocial tendencies, similar to social insects. Marine species occupying diversified ecological niches in tropical and temperate zones reproduce under definitive environmental conditions. Therefore, reproductive ecology of different crustaceans inhabiting different ecological niches also constitutes another important aspect of the work, along with yolk utilization and embryogenesis leading to release of different larval forms, which reflect on their aquatic adaptability. Forms a valuable source of recent references on the current research in crustacean reproductive physiology Covers various mating and breeding systems, providing illustrative examples for sexual selection, parental care of developing eggs and embryos, and the evolution of other reproductive behaviors Features contributions written in the form of review articles, enabling readers to not only gain information in the respective subject, but also help them stimulate ideas in their chosen field of research Includes a glossary created by the author to define technical terms Demonstrates the ability of crustacean species to serve as useful model systems for other organisms, to investigate issues related to sexual conflict, mate choice, and sperm competition Discusses techniques in endocrine research to help researchers in aquaculture develop protocols in the control of reproduction

YOUMARES 9 - the Oceans: Our Research, Our Future

Author : Simon Jungblut
Publisher : Springer Nature
ISBN 13 : 3030203891
Total Pages : 378 pages
Book Rating : 4.0/5 (32 download)

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Book Synopsis YOUMARES 9 - the Oceans: Our Research, Our Future by : Simon Jungblut

Download or read book YOUMARES 9 - the Oceans: Our Research, Our Future written by Simon Jungblut and published by Springer Nature. This book was released on 2020-01-01 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book summarizes peer-reviewed articles and the abstracts of oral and poster presentations given during the YOUMARES 9 conference which took place in Oldenburg, Germany, in September 2018. The aims of this book are to summarize state-of-the-art knowledge in marine sciences and to inspire scientists of all career stages in the development of further research. These conferences are organized by and for young marine researchers. Qualified early-career researchers, who moderated topical sessions during the conference, contributed literature reviews on specific topics within their research field. .

Species Invasions

Author : Dov F. Sax
Publisher : Sinauer Associates Incorporated
ISBN 13 : 9780878938216
Total Pages : 495 pages
Book Rating : 4.9/5 (382 download)

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Book Synopsis Species Invasions by : Dov F. Sax

Download or read book Species Invasions written by Dov F. Sax and published by Sinauer Associates Incorporated. This book was released on 2005 with total page 495 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The study of species invasions to date has focused mainly on applied aspects. This book explores the potential of invasive species studies to offer insights into fundamental research issues in ecology, evolution, conservation biology, and biogeography. Contributed chapters by provide a framework applicable to general ecological studies"--Provided by publisher.

The Ecology of Humboldt Bay, California

Author : Roger A. Barnhart
Publisher :
ISBN 13 :
Total Pages : 134 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis The Ecology of Humboldt Bay, California by : Roger A. Barnhart

Download or read book The Ecology of Humboldt Bay, California written by Roger A. Barnhart and published by . This book was released on 1992 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:

In the Wrong Place - Alien Marine Crustaceans: Distribution, Biology and Impacts

Author : Bella S. Galil
Publisher : Springer Science & Business Media
ISBN 13 : 9400705913
Total Pages : 714 pages
Book Rating : 4.4/5 (7 download)

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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.

Reproduction and Development of Marine Invertebrates of the Northern Pacific Coast

Author : Megumi F. Strathmann
Publisher : Seattle : University of Washington Press
ISBN 13 : 9780295965239
Total Pages : 670 pages
Book Rating : 4.9/5 (652 download)

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Book Synopsis Reproduction and Development of Marine Invertebrates of the Northern Pacific Coast by : Megumi F. Strathmann

Download or read book Reproduction and Development of Marine Invertebrates of the Northern Pacific Coast written by Megumi F. Strathmann and published by Seattle : University of Washington Press. This book was released on 1987 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference work is designed to provide background information on an array of northeastern Pacific marine invertebrate species so that they can be more easily included in comparative studies of morphology, cell biology, reproduction, embryology, larval biology, and ecology. It is meant to serve biologists who are new to the field as well as experienced investigators who may not be familiar with the invertebrate fauna of the northern Pacific Coast. The species discussed in this volume are mostly from the cold temperate waters of the San Juan Archipelago, near Puget SOund and the Strait of Georgia, but the information and methods given will be useful in laboratories from Alaska to central California and applicable to some extend in other coastal or inland facilities. An introductory chapter discusses basic prodcedures for collecting and maintaining mature specimens, for initiating spawning, and for culturing embryos and larvae in the laboratory. Subsequent chapters summarize reproduction and development in thirty different invertebrate groups and provided ercent references through which additional information can be traced, cite monographs or keys needed to identify species, and give methods useful for studying an array of selected species. Available information on habitat, diet, reproductive mode, egg size, developmental pattern, developmental times, larval type, and conditions for settlement and metamorphosis is reported for over 450 species.