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Articles 1 - 24 of 24
Full-Text Articles in Marine Biology
The Lobster Bulletin, Fall 2009, Lobster Institute, University Of Maine
The Lobster Bulletin, Fall 2009, Lobster Institute, University Of Maine
Lobster Bulletin
The Lobster Bulletin newsletter includes research updates, and information on lobsters and the lobster industry. The Lobster Institute at the University of Maine is dedicated to protecting and conserving the lobster resource, and enhancing lobstering as an industry and a way of life.
Headlines in the Fall 2009 issue include:
- Lobster Council of Canada Has Great Potential
- Lobster Institute Events of Interest
- 2010 Canadian/U.S. Lobstermen's Town Meeting
- Research Report: Lobster Health Coalition Makes Progress on Baseline Health Data
- Research Report: LFA 33/34 Lobster Moult Timing & Quality Monitoring Project Update
- Fisheries On-Line Forum Launched
Life History, Sexual Dimorphism And 'Ornamental' Feathers In The Mesozoic Bird Confuciusornis Sanctus., Winfried S. Peters, Dieter Stefan Peters
Life History, Sexual Dimorphism And 'Ornamental' Feathers In The Mesozoic Bird Confuciusornis Sanctus., Winfried S. Peters, Dieter Stefan Peters
Winfried S. Peters
Water Quality Conditions And Restoration Of Submerged Aquatic Vegetation (Sav) In The Tidal Freshwater James River, 2008, Ken Moore, Betty Berry Neikirk, Erin C. Shields, David Parrish
Water Quality Conditions And Restoration Of Submerged Aquatic Vegetation (Sav) In The Tidal Freshwater James River, 2008, Ken Moore, Betty Berry Neikirk, Erin C. Shields, David Parrish
Reports
In 2008, wild celery (Vallisneria americana), water stargrass (Heteranthera dubia) and hydrilla (Hydrilla verticilata) shoots were transplanted into shallow water sites in the Hopewell region of the tidal James River and sampled for survivorship and growth throughout the SA V growing season. Water quality sampling was conducted at bi-weekly intervals throughout the year for water column nutrients, chlorophyll a, suspended solids, water transparency and other chemical and physical constituents important for SA V growth. Continuous water quality sampling was also conducted along the James River from the mouth of the Chickahominy River to the upstream limits of tidal water at …
Summer/Fall 2009, Nsu Oceanographic Center
Factors Influencing The Environmental Quality Of The Bay Of Saint Louis, Mississippi And Implications For Evolving Coastal Management Policies, Pradnya Ankush Sawant
Factors Influencing The Environmental Quality Of The Bay Of Saint Louis, Mississippi And Implications For Evolving Coastal Management Policies, Pradnya Ankush Sawant
Dissertations
The Bay of St. Louis, MS is a small northern Gulf of Mexico estuary that has been identified by the Mississippi Department of Environmental Quality (MDEQ) as an impaired waterbody for its designated uses, mainly due to the presence of pollutant pathogens. A systematic study of this estuary was important to understand the behavior and responses of the bay to several natural and anthropogenic forcing factors. A 14- month long study (bimonthly sampling) to evaluate its environmental quality was undertaken from April 2003 to May 2004. Environmental quality was defined as "the health of an ecosystem characterized in terms of …
Habitat-Based Intraguild Predation By Caribbean Reef Octopus Octopus Briareus On Juvenile Caribbean Spiny Lobster Panulirus Argus, Mark J. Butler Iv, Jennifer A. Lear
Habitat-Based Intraguild Predation By Caribbean Reef Octopus Octopus Briareus On Juvenile Caribbean Spiny Lobster Panulirus Argus, Mark J. Butler Iv, Jennifer A. Lear
Biological Sciences Faculty Publications
Intraguild predation occurs when species simultaneously compete for resources and interact as predator and prey, which describes the interaction between juvenile Caribbean spiny lobster Panulirus argus and Caribbean reef octopus Octopus briareus in the Florida Keys, USA. Octopuses are notorious predators of decapod crustaceans, and their use of crevice shelters suggests that they may also compete for shelter with their lobster prey. Lobsters use mainly chemical cues to detect and avoid octopus, so we hypothesized that the negative association between these species may be as much the consequence of avoidance of a superior competitor as it is of direct predation. …
The Lobster Bulletin, Summer 2009, Lobster Institute, University Of Maine
The Lobster Bulletin, Summer 2009, Lobster Institute, University Of Maine
Lobster Bulletin
The Lobster Bulletin newsletter includes research updates, and information on lobsters and the lobster industry. The Lobster Institute at the University of Maine is dedicated to protecting and conserving the lobster resource, and enhancing lobstering as an industry and a way of life.
Headlines in the Summer 2009 issue include:
- Development of Best Management Practices to Reduce or Eliminate Stress on Lobsters
- Mariner Beverages, USA Wine West Unveil New Wine to Benefit the Lobster Institute
- Lobster Institute Presents First Rising Star Award to Lobster Gram, Inc.
- Best Management Practices to Reduce or Eliminate Stress from Hauling & Handling of Lobsters …
Effect Of The Herbivorous Channel Clinging Crab (Mithrax Spinosissimus) On Patch Reef Algal Communities In The Florida Keys, Florida (Usa), Angela M. Mojica Osorio
Effect Of The Herbivorous Channel Clinging Crab (Mithrax Spinosissimus) On Patch Reef Algal Communities In The Florida Keys, Florida (Usa), Angela M. Mojica Osorio
Biological Sciences Theses & Dissertations
Coral reefs worldwide are undergoing dramatic habitat modification from coral to macroalgal dominance due to water pollution, coral diseases, global. warming, and the loss of herbivores. This phase-shift bas been particularly severe on Caribbean reefs due in large measure to the decline of piscine and echinoderm grazers, whose presence appears crucial for stemming the decline of coral reefs and enhancing their resilience. Virtually unknown, however, is the role of other macrograzers in coral reef ecosystems. This is the first study to examine the feeding ecology and grazer effect of the herbivorous West Indian spider crab (Mithrax spinosissimus) on inshore patch …
Changing Fecundity And Reproductive Output In Females Of A Chesapeake Bay Population Of Blue Crab, Callinectes Sapidus, Shannon L. Wells
Changing Fecundity And Reproductive Output In Females Of A Chesapeake Bay Population Of Blue Crab, Callinectes Sapidus, Shannon L. Wells
OES Theses and Dissertations
The Chesapeake Bay blue crab, Callinectes sapidus, is an important species both ecologically and as a fishery. Fishery dependent and independent data indicate that the population declined abruptly in the mid-1990s and has remained low. Previous work prior to the decline in population abundance found a significant relationship between size and fecundity for mature females. As with many heavily fished populations, this population has experienced a reduction in the size at maturity. The objectives of this study were to reassess the fecundity of the population, determine the lipid and protein energy allocated for reproduction, and to examine the concentrations …
Alternative Life Cycle Strategies And Colonization Of Young Anurans By Gorgoderina Attenuata In Nebraska, Matthew G. Bolek, Scott D. Snyder, John J. Janovy Jr.
Alternative Life Cycle Strategies And Colonization Of Young Anurans By Gorgoderina Attenuata In Nebraska, Matthew G. Bolek, Scott D. Snyder, John J. Janovy Jr.
Biology Faculty Publications
Studies on life cycles and epizootiology of North American frog bladder flukes indicate that adult frogs become infected predominantly by ingesting tadpoles or other frogs that serve as second intermediate hosts for gorgoderid metacercariae. Other studies have indicated that newly metamorphosed frogs are rarely infected with these parasites because they are gape-limited predators that cannot feed on large intermediate hosts such as tadpoles and other frogs. We examined the role of potential intermediate hosts in the recruitment of the frog bladder fluke, Gorgoderina attenuata, to metamorphosed northern leopard frogs, Woodhouse’s toads, and bullfrogs from western Nebraska. We completed the …
Oceanic-Atmospheric Modes Of Variability And Their Effect On River Flow And Blue Crab (Callinectes Sapidus) Abundance In The Northcentral Gulf Of Mexico, Guillermo Humberto Sanchez-Rubio
Oceanic-Atmospheric Modes Of Variability And Their Effect On River Flow And Blue Crab (Callinectes Sapidus) Abundance In The Northcentral Gulf Of Mexico, Guillermo Humberto Sanchez-Rubio
Dissertations
Oceanic-atmospheric modes of variability occur on interdecadal, multidecadal, decadal, and interannual timescales and their influence on climate around the world has been confirmed. The present study investigates Mississippi River and Pascagoula River flows in response to the influence of one or more of the four oceanic-atmospheric modes of variability: the Pacific Decadal Oscillation (PDO), the Atlantic Multidecadal Oscillation (AMO), the North Atlantic Oscillation (NAO), and the El Nino Southern Oscillation (ENSO). These modes of variability are present in phases: PDO warm (PDOw) and cold (PDOc), AMO warm (AMOw) and cold (AMOc), NAO positive (NAOp) and negative (NAOn), and ENSO warm …
Differential Response Of Amp Activated Protein Kinase (Ampk) And Hsp70 To Temperature Stress In The Gastropod, Nucella Lapillus, Emily Zimmermann
Differential Response Of Amp Activated Protein Kinase (Ampk) And Hsp70 To Temperature Stress In The Gastropod, Nucella Lapillus, Emily Zimmermann
All Theses And Dissertations
Populations of the gastropod Nucella lapillus are polymorphic for shell color, with light-colored shells predominating on warmer, wave-protected shores and dark-colored shells limited primarily to cooler, wave-exposed shores. During thermal stress, darker shells attain higher body temperatures than lighter shells. These results suggest that heat stress may determine field distribution patterns. However, there is currently little evidence of physiological consequences of thermal stress in these organisms. Following the guiding hypothesis that heat stress leads to cellular energy depletion, we explored whether the central energy regulator AMP-activated Protein Kinase (AMPK) is activated by heat stress. We compared this response in both …
The Lobster Bulletin, Spring 2009, Lobster Institute, University Of Maine
The Lobster Bulletin, Spring 2009, Lobster Institute, University Of Maine
Lobster Bulletin
The Lobster Bulletin newsletter includes research updates, and information on lobsters and the lobster industry. The Lobster Institute at the University of Maine is dedicated to protecting and conserving the lobster resource, and enhancing lobstering as an industry and a way of life.
Headlines in the Spring 2009 issue include:
- Canadian Officials May Consider Ban of Floating Rope
- Sustainability Labeling & Traceability Trigger Much Discussion at Lobster Institute's 2009 Canadian/U.S. Lobstermen's Town Meeting
- Research Report: FSRS Lobster Recruitment Index
- Research Report: American Lobster Stock Assessment 2009
- The Lobster Institute presents Lobster College 2009
Spring 2009, Nsu Oceanographic Center
The Value Of A Net‐Cage As A Fish Aggregating Device In Southern California, Daniel Pondella
The Value Of A Net‐Cage As A Fish Aggregating Device In Southern California, Daniel Pondella
Daniel Pondella
There is an urgent need for primary data that can be used to quantify the value of marine aquaculture facilities that also describe influences on the surrounding natural ecosystem and its wild fish communities. Divers completed 360 transect replicates below a net-cage and at nearby and distant rocky reefs off Catalina Island, California, estimating the species abundance and size class of all conspicuous fishes in the water column. We observed 10,234 fishes aggregating below the net-cage with a mean annual density of 142 (SE ± 30) per 100 m2 and diversity H′ 2.29. At the adjacent reference reef, we counted …
The Lobster Bulletin, Winter 2009, Lobster Institute, University Of Maine
The Lobster Bulletin, Winter 2009, Lobster Institute, University Of Maine
Lobster Bulletin
The Lobster Bulletin newsletter includes research updates, and information on lobsters and the lobster industry. The Lobster Institute at the University of Maine is dedicated to protecting and conserving the lobster resource, and enhancing lobstering as an industry and a way of life.
Headlines in the Winter 2009 issue include:
- Lobster Institute to Host 2009 Canadian/U.S. Lobstermen's Town Meeting, March 27-28
- Lobster Health Coalition Takes Shape
- 2008 Friends of the Lobster Institute
- Research Report: Lobster Enhancement Efforts Discussed
- Study on Economic Impact of Joint Canadian/U.S. Marketing of Lobster on Tap
- Research Report: Lobster Science Presentations Available Online
Winter 2009, Nsu Oceanographic Center
Biology And Conservation Of Horseshoe Crabs, John T. Tanacredi, Mark L. Bottom, David R. Smith
Biology And Conservation Of Horseshoe Crabs, John T. Tanacredi, Mark L. Bottom, David R. Smith
School of Marine and Environmental Sciences Faculty and Staff Publications and Presentations
We dedicate this book to Drs. Carl N. Shuster, Jr. and Koichi Sekiguchi for their life-long contributions to the biology and conservation of the magnificent horseshoe crab.
Determining The Distribution Of Antibiotic Resistant And Fecal Indicator Bacteria In The Ohio River, Caitlin Nicole Swecker
Determining The Distribution Of Antibiotic Resistant And Fecal Indicator Bacteria In The Ohio River, Caitlin Nicole Swecker
Theses, Dissertations and Capstones
The Ohio River extends 981 miles from Pittsburgh, PA to Cairo, Ill providing drinking water to over three million people, a natural habitat for aquatic life, a public recreation resource, a major transportation route, and a source of water for industry. The Guyandotte River is a highly impacted tributary emptying into the Ohio River in Huntington, WV. The objectives of this study were to determine if sediment load is correlated to the number of antibiotic resistant bacteria (ARB) and determine if a single surface sample is a sufficient representative measurement of ARB populations in a large river. In 2007, subsurface …
Horseshoe Crab Spawning Survey Protocol, Jennifer Mattei
Horseshoe Crab Spawning Survey Protocol, Jennifer Mattei
Biology Faculty Publications
The protocol lists supplies and clothing needed for the survey, as well as which data is to be collected and when and how it should be entered for the census of horseshoe crabs on the Recapture Data Sheet for 2009. Adopted from Cape Cod and Delaware Bay survey protocols.
Thirty-Seven Additional Microsatellite Loci In The Pacific Lion-Paw Scallop (Nodipecten Subnodosus) And Cross-Amplification In Other Pectinids, Jessica Lynn Petersen, Ana M. Ibarra, Bernie May
Thirty-Seven Additional Microsatellite Loci In The Pacific Lion-Paw Scallop (Nodipecten Subnodosus) And Cross-Amplification In Other Pectinids, Jessica Lynn Petersen, Ana M. Ibarra, Bernie May
Department of Animal Science: Faculty Publications
We characterized 37 new microsatellite markers in the Pacific lion-paw scallop (Nodipecten subnodosus) and tested for cross-amplification in four other species. Genetic diversity was estimated using 24 individuals from the Lagoon Ojo de Liebre, B.C.S., Mexico. Allelic richness varied from 5 to 27 alleles per locus and the average expected heterozygosity was 0.76. Ten loci exhibited significant departure from Hardy–Weinberg equilibrium likely due to the presence of null alleles. Sixteen of these markers cross-amplified in closely related N. nodosus, while little or no amplification was observed in three Argopecten species.
Impacts Of Marine Docks On Eelgrass In New England: A Spreadsheet-Based Model For Managers And Planners, David M. Burdick, Frederick T. Short, Gregg Moore
Impacts Of Marine Docks On Eelgrass In New England: A Spreadsheet-Based Model For Managers And Planners, David M. Burdick, Frederick T. Short, Gregg Moore
Faculty Publications
none
Function Of Seed-Bank Ecology In Mid-Atlantic Semi-Annual And Perennial Zostera Marina Beds, Jessie C. Jarvis
Function Of Seed-Bank Ecology In Mid-Atlantic Semi-Annual And Perennial Zostera Marina Beds, Jessie C. Jarvis
Dissertations, Theses, and Masters Projects
The effects of water quality and sediment composition on mid-Atlantic semi-annual and perennial Zostera marina reproductive success, seed-bank viability, and seed germination were elucidated using laboratory and in situ experiments, quantitative field observations, and ecological model simulations. The sediment seed-bank was found to play a large role in the recovery of perennial Z. marina beds in the Chesapeake Bay and in the yearly re-establishment of beds in North Carolina which were determined to have a semi-annual life history. However, the resiliency provided by sediment seed-bank for both semi-annual and perennial Z. marina beds was limited as seeds remained viable for …
Patterns Of Spiny Lobster (Panulirus Argus) Postlarval Recruitment In The Carribbean: A Crtr Project, Mark J. Butler Iv, Angela M. Mojica, Eloy Sosa-Cordero, Marines Millet, Paul Sanchez-Navarro, Miguel A. Maldonado, Juan Posada, Bladimir Rodriguez, Carlos M. Rivas, Adrian Oviedo, Marcio Arrone, Martha Prada, Nick Bach, Nilda Jimenez, Maria Del Carmen Garcia-Rivas, Kirah Forman, Donald C. Behringer Jr., Thomas Matthews, Claire Paris, Robert Cowen
Patterns Of Spiny Lobster (Panulirus Argus) Postlarval Recruitment In The Carribbean: A Crtr Project, Mark J. Butler Iv, Angela M. Mojica, Eloy Sosa-Cordero, Marines Millet, Paul Sanchez-Navarro, Miguel A. Maldonado, Juan Posada, Bladimir Rodriguez, Carlos M. Rivas, Adrian Oviedo, Marcio Arrone, Martha Prada, Nick Bach, Nilda Jimenez, Maria Del Carmen Garcia-Rivas, Kirah Forman, Donald C. Behringer Jr., Thomas Matthews, Claire Paris, Robert Cowen
Biological Sciences Faculty Publications
As part of the Coral Reef Targeted Research (CRTR) Program, a partnership between the Global Environment Facility and the World Bank, our research team examined the recruitment patterns of Caribbean spiny lobster (Panulirus argus) postlarvae among regions in the Caribbean, with a particular focus on Mesoamerica. Our goal was to collect comparable information on postlarval supply among regions and to provide data to test predictions of connectivity generated from a coupled biophysical oceanographic model of lobster larval dispersal. Here we present the results of the postlarval recruitment monitoring program. We monitored the catch of postlarvae on Witham-style collectors …