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Articles 4801 - 4830 of 7423
Full-Text Articles in Marine Biology
Bringing Home The Trash: Do Differences In Foraging Lead To Increased Plastic Ingestion In Laysan Albatrosses?, L C. Young, C Vanderlip, D C. Duffy, V Afanasyev, Scott A. Shaffer
Bringing Home The Trash: Do Differences In Foraging Lead To Increased Plastic Ingestion In Laysan Albatrosses?, L C. Young, C Vanderlip, D C. Duffy, V Afanasyev, Scott A. Shaffer
Faculty Publications, Biological Sciences
When searching for prey, animals should maximize energetic gain, while minimizing energy expenditure by altering their movements relative to prey availability. However, with increasing amounts of marine debris, what once may have been ‘optimal’ foraging strategies for top marine predators, are leading to sub-optimal diets comprised in large part of plastic. Indeed, the highly vagile Laysan albatross (Phoebastria immutabilis) which forages throughout the North Pacific, are well known for their tendency to ingest plastic. Here we examine whether Laysan albatrosses nesting on Kure Atoll and Oahu Island, 2,150 km apart, experience different levels of plastic ingestion. Twenty two geolocators were …
A Citizen's Guide To Protecting Greenland's Water Resources, Prep & Greenland Conservation Commission, Greenland Conservation Commission
A Citizen's Guide To Protecting Greenland's Water Resources, Prep & Greenland Conservation Commission, Greenland Conservation Commission
PREP Reports & Publications
No abstract provided.
An Afternoon In Mosquito Lagoon, Suzie Caffery, Diahn Escue
An Afternoon In Mosquito Lagoon, Suzie Caffery, Diahn Escue
CEELAB Children's Books
Oysters in Mosquito Lagoon serve many important functions. They filter the water, are consumed by a variety of predators (including humans) and create habitat for over 100 species. Sadly, Mosquito Lagoon's oysters are in trouble. This story describes some of the amazing animals that live in or around Mosquito Lagoon's oyster reefs. Information on how everyone can help protect Mosquito Lagoon oysters is also explained.
Typhlichthys Subterraneus, Aldemaro Romero Jr.
Typhlichthys Subterraneus, Aldemaro Romero Jr.
Publications and Research
No abstract provided.
Prep Year In Review, Prep
Rapid Recovery Of A Coral Reef At Darwin Island, Galapagos Islands, Peter W. Glynn, Bernhard Riegl, Adrienne M. S. Correa, Iliana B. Baums
Rapid Recovery Of A Coral Reef At Darwin Island, Galapagos Islands, Peter W. Glynn, Bernhard Riegl, Adrienne M. S. Correa, Iliana B. Baums
Marine & Environmental Sciences Faculty Articles
Surveys at Darwin Island in 2006 and 2007 have demonstrated that this northernmost Galapagos Islands coral reef has recovered significantly since the 1982–3 El Niño event. When first surveyed in 1975, this structural reef exhibited actively accreting frameworks of pocilloporid and poritid corals. The coral suffered severe mortality in 1983, resulting in the near total loss of pocilloporids and extensive partial mortality of poritid corals. Large sections of the reef had not recovered by 1992 and dead frameworks were subject to bio-erosion, although small numbers of sexual recruits of pocilloporid corals and numerous recruits plus regenerating patches of Porites lobata …
Markov Models For Linking Environments And Facies In Space And Time (Recent Arabian Gulf, Miocene Paratethys), Bernhard Riegl, Samuel J. Purkis
Markov Models For Linking Environments And Facies In Space And Time (Recent Arabian Gulf, Miocene Paratethys), Bernhard Riegl, Samuel J. Purkis
Marine & Environmental Sciences Faculty Articles
If, as comparative sedimentology maintains, knowledge of the Recent can sometimes be helpful to explain the past (and vice-versa), common quantitative denominators might exist between Recent and fossil systems. It may also be possible to describe dynamics and find linkages between space and time with a unique set of quantitative tools. To explore such conceptual links, spatial facies patterns mapped using satellite imagery were compared with temporal patterns in analogous ancient outcropping facies using Markov chains and graphs. Landsat and Ikonos satellite imagery was used to map benthic facies in a nearshore carbonate ramp (Ras Hasyan) and offshore platform system …
The Influence Of Artificial Reef Associated Fish Assemblages And Varying Substrates On Coral Recruitment, T. Patrick Quinn
The Influence Of Artificial Reef Associated Fish Assemblages And Varying Substrates On Coral Recruitment, T. Patrick Quinn
HCNSO Student Theses and Dissertations
This study examined enhancing coral recruitment to artificial substrate by manipulating fish assemblages and the use of coral attractant substrates. One hundred sixty artificial reef modules were organized into 40 four-module replicate configurations (quads) of varying complexity to induce different fish assemblages. The deployment array consisted of the 40 quads, each in a square configuration with three to four-meter sides (approximately 1 m separation between modules) measured from the outside corners. The quads were divided into four fill treatments of differing complexity: Empty, Small, Mixed, and Large. Each quad had four potential coral attractant treatments on settlement plates: CaCO3, iron, …
New Perspectives On Ecological Mechanisms Affecting Coral Recruitment On Reefs, Raphael Ritson-Williams, Suzanne N. Arnold, Nicole D. Fogarty, Robert S. Steneck, Mark J. A. Vermeij, Valerie J. Paul
New Perspectives On Ecological Mechanisms Affecting Coral Recruitment On Reefs, Raphael Ritson-Williams, Suzanne N. Arnold, Nicole D. Fogarty, Robert S. Steneck, Mark J. A. Vermeij, Valerie J. Paul
Marine & Environmental Sciences Faculty Articles
Coral mortality has increased in recent decades, making coral recruitment more important than ever in sustaining coral reef ecosystems and contributing to their resilience. This review summarizes existing information on ecological factors affecting scleractinian coral recruitment. Successful recruitment requires the survival of coral offspring through sequential life history stages. Larval availability, successful settlement, and post-settlement survival and growth are all necessary for the addition of new coral individuals to a reef and ultimately maintenance or recovery of coral reef ecosystems. As environmental conditions continue to become more hostile to corals on a global scale, further research on fertilization ecology, connectivity, …
Seal Bounties In Maine And Massachusetts, 1888 To 1962, Barbarai Lelli, David Harris Ph.D, Aboueissa Abouel-Makarim
Seal Bounties In Maine And Massachusetts, 1888 To 1962, Barbarai Lelli, David Harris Ph.D, Aboueissa Abouel-Makarim
Faculty Publications
Maine and Massachusetts paid bounties on seals during the 19th and 20th centuries. To determine the number of seals killed for bounty, we examined historical records of bounty claims, and used geographic information systems and multiple linear regression to find predictors of places where large numbers of bounties were paid. We found records of 24,831 bounties paid in Maine (1891-1945) and 15,690 in Massachusetts (1888-1962), Considering possible fraud, missing data, and seals struck and lost, this suggests that 72,284 to 135,498 seals were killed in the bounty hunt, probably enough to account for regional declines in seal populations. Larger numbers …
Advances In The Study Of Marine Mammal Predator-Prey Interactions: A Novel Real-Time Visualization Of Independently Collected Echosounder Data Using Geozui4d, Roland J. Arsenault, Ari S. Friedlaender, Elliott L. Hazen, Colin Ware, David N. Wiley
Advances In The Study Of Marine Mammal Predator-Prey Interactions: A Novel Real-Time Visualization Of Independently Collected Echosounder Data Using Geozui4d, Roland J. Arsenault, Ari S. Friedlaender, Elliott L. Hazen, Colin Ware, David N. Wiley
Center for Coastal and Ocean Mapping
No abstract provided.
A Citizen's Guide To Understanding Hampton Falls Land Use Regulations That Protect Critical Water Resources, Hampton Falls Conservation Commission
A Citizen's Guide To Understanding Hampton Falls Land Use Regulations That Protect Critical Water Resources, Hampton Falls Conservation Commission
PREP Reports & Publications
No abstract provided.
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.
Winter 2009, Nsu Oceanographic Center
Is Seagrass An Important Nursery Habitat For The Caribbean Spiny Lobster, Panulirus Argus, In Florida?, Donald C. Behringer, Mark J. Butler Iv, William Herrnkind, John H. Hunt, Charles A. Acosta, William C. Sharp
Is Seagrass An Important Nursery Habitat For The Caribbean Spiny Lobster, Panulirus Argus, In Florida?, Donald C. Behringer, Mark J. Butler Iv, William Herrnkind, John H. Hunt, Charles A. Acosta, William C. Sharp
Biological Sciences Faculty Publications
Caribbean spiny lobster (Panulirus argus) settle preferentially in macroalgal-covered hard-bottom habitat, but seagrass is more prevalent in Florida (United States) and the Caribbean, so even low settlement of lobsters within seagrass could contribute substantially to recruitment if post-settlement survival and growth were high. We tested the role of seagrass and hard-bottom habitats for P. argus recruitment in three ways. We first explored possible density-dependent regulation of early benthic juvenile lobster survival within cages deployed in seagrass and hard-bottom habitats. Second, we compared settlement and survival of P. argus in both habitats, by comparing the recovery of microwire-tagged early …
Thin Layer Formation During Runaway Stratification In The Tidally Dynamic San Francisco Estuary, Alexander B. Bochdansky, Stephen M. Bollens
Thin Layer Formation During Runaway Stratification In The Tidally Dynamic San Francisco Estuary, Alexander B. Bochdansky, Stephen M. Bollens
OES Faculty Publications
During the course of a year, we repeatedly collected high-resolution vertical fluorometer data timed to coincide with a specific state during the tidal cycle. The time (end of the ebb during neap tide) and the location (a deep channel half-way between the Golden Gate and the point of tidally averaged bottom salinity of 2 psu) were chosen with the goal to observe runaway stratification. We consistently found at least one pronounced chlorophyll peak in the water column; however, the vertical location of these peaks varied within three types including surface, bottom and subsurface maxima. Our results showed that heterogeneity of …
Spatial Variation In Otolith Chemistry Of Atlantic Croaker Larvae In The Mid-Atlantic Bight, Jason J. Schaffler, Christian S. Reiss, Cynthia M. Jones
Spatial Variation In Otolith Chemistry Of Atlantic Croaker Larvae In The Mid-Atlantic Bight, Jason J. Schaffler, Christian S. Reiss, Cynthia M. Jones
OES Faculty Publications
Larval Atlantic croaker Micropogonias undulatus (1 to 7 mm in standard length) were collected on the east coast of the United States from North Carolina to Delaware during 2000. We defined 3 water-mass boundaries for potential groups of spawning Atlantic croaker using temperature and salinity measured at each sampling station. We tested the hypothesis that distinct otolith chemistries existed among 3 groups of larval Atlantic croaker collected from these water masses using solution-based inductively coupled plasma-mass spectrometry. Multivariate analysis of variance indicated that otolith chemistry differed significantly among water masses. Using a quadratic discriminant function, we were able to correctly …
Cross-Basin Comparison Of Phosphorus Stress And Nitrogen Fixation In Trichodesmium, Annette M. Hynes, P. Dreux Chappell, Sonya T. Dyhrman, Scott C. Doney, Eric A. Webb
Cross-Basin Comparison Of Phosphorus Stress And Nitrogen Fixation In Trichodesmium, Annette M. Hynes, P. Dreux Chappell, Sonya T. Dyhrman, Scott C. Doney, Eric A. Webb
OES Faculty Publications
We investigated the phosphorus (P) status and N2 fixation rates of Trichodesmium populations from the North Pacific, western South Pacific, and western North Atlantic. Colonies of Trichodesmium were collected and analyzed for endogenous alkaline phosphatase (AP) activity using enzyme-labeled fluorescence ( ELF) and for nitrogenase activity using acetylene reduction. AP hydrolyzes dissolved inorganic phosphate (DIP) from dissolved organic phosphorus and is active in Trichodesmium colonies experiencing P stress. Across multiple stations in the subtropical North and South Pacific, there was low to moderate ELF labeling in Trichodesmium, although labeling was present in other taxa. In contrast, Trichodesmium ELF …
The Epidemiological Status Of Pav1, And The Effects Of Infection On Caribbean Spiny Lobster (Panulirus Argus) Condition, Olfaction, And Predation Risk, Donald C. Behringer, Mark J. Butler Iv, Jeffrey D. Shields
The Epidemiological Status Of Pav1, And The Effects Of Infection On Caribbean Spiny Lobster (Panulirus Argus) Condition, Olfaction, And Predation Risk, Donald C. Behringer, Mark J. Butler Iv, Jeffrey D. Shields
Biological Sciences Faculty Publications
No abstract provided.
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 …
Understanding How Disease And Environment Combine To Structure Resistance In Estuarine Bivalve Populations, Eileen E. Hofmann, David Bushek, Susan E. Ford, Ximing Guo, Dale Haidvogel, Dennis Hedgecock, John M. Klinck, Coren Milbury, Diego Narvaez, Eric Powell, Yongping Wang, Zhiren Wang, Liusuo Zhang
Understanding How Disease And Environment Combine To Structure Resistance In Estuarine Bivalve Populations, Eileen E. Hofmann, David Bushek, Susan E. Ford, Ximing Guo, Dale Haidvogel, Dennis Hedgecock, John M. Klinck, Coren Milbury, Diego Narvaez, Eric Powell, Yongping Wang, Zhiren Wang, Liusuo Zhang
CCPO Publications
Delaware Bay oyster (Crassostrea virginica) populations are influenced by two lethal parasites that cause Dermo and MSX diseases. As part of the US National Science Foundation Ecology of Infectious Diseases initiative, a program developed for Delaware Bay focuses on understanding how oyster population genetics and population dynamics interact with the environment and these parasites to structure he host populations, and how these interactions might modified by climate change. Laboratory and field studies undertaken during this program include identifying genes related to MSX and Dermo disease resistance, potential regions for refugia and the mechanisms that allow them to exist, …
Regional Characterisation Of Hard-Bottom Nursery Habitat For Juvenile Caribbean Spiny Lobster (Panulirus Argus) Using Rapid Assessment Techniques, Rodney D. Bertelsen, Mark J. Butler Iv, William F. Herrnkind, John H. Hunt
Regional Characterisation Of Hard-Bottom Nursery Habitat For Juvenile Caribbean Spiny Lobster (Panulirus Argus) Using Rapid Assessment Techniques, Rodney D. Bertelsen, Mark J. Butler Iv, William F. Herrnkind, John H. Hunt
Biological Sciences Faculty Publications
Shallow, hard-bottom habitat constitutes approximately 30% of the coastal waters of south Florida, United States, yet it is a chronically understudied feature of the marine seascape in this region. In this study, we characterised the general biogeographic and structural features of shallow benthic hard-bottom communities in the Florida Keys, and related those to the abundance of juvenile Caribbean spiny lobster (Panulirus argus), the target of one of Florida's most economically valuable fisheries. We used rapid assessment techniques to survey more than 100 hard-bottom sites in the Florida Keys to estimate the percentage bottom coverage of vegetation (seagrass and …
Influence Of Irradiance And Iron On The Growth Of Colonial Phaeocystic Antarctica: Implications For Seasonal Bloom Dynamics In The Ross Sea, Antarctica, Nathan S. Garcia, Peter N. Sedwick, Giacomo R. Ditullio
Influence Of Irradiance And Iron On The Growth Of Colonial Phaeocystic Antarctica: Implications For Seasonal Bloom Dynamics In The Ross Sea, Antarctica, Nathan S. Garcia, Peter N. Sedwick, Giacomo R. Ditullio
OES Faculty Publications
Laboratory culture experiments were used to investigate the growth rate of colonial Phaeocystis anarctica as a function of irradiance and dissolved iron concentration. The experiments were conducted with a P. antarctica strain isolated from the southern Ross Sea, Antarctica, and made use of natural, low-iron (P. antarctica attained an average maximum cell-specific growth rate of 0.37 d-1at an irradiance of 68 μE m-2s-1, above which growth rates decreased to 0.27 d-1 at an irradiance of 314 μE m-2s-1. The dependence of growth rate on ambient dissolved iron concentration was …
Patterns Of Larval Atlantic Croaker Ingress Into Chesapeake Bay, Usa, Jason J. Schaffler, Christian S. Reiss, Cynthia M. Jones
Patterns Of Larval Atlantic Croaker Ingress Into Chesapeake Bay, Usa, Jason J. Schaffler, Christian S. Reiss, Cynthia M. Jones
OES Faculty Publications
We compared ingress patterns of Atlantic croaker Micropogonias undulatus larvae into Chesapeake Bay, USA, with published ingress patterns through barrier island inlets, the accepted model for larval fish ingress. This model asserts that larvae ingress on night flood tides at the flooddominated side of the inlet and at all depths. At the Chesapeake Bay mouth and in the adjacent coastal waters, we compared the distribution of abundance, size, age, and growth rates of croaker prior to ingress, In contrast to the barrier island inlet model, croaker larvae were more abundant at depth than closer to the surface regardless of location. …
Potential Effects Of Catastrophic Cyanobacteria Blooms On Caribbean Spiny Lobster Population Dynamics In Florida Bay Usa, Donald C. Behringer, Mark J. Butler Iv
Potential Effects Of Catastrophic Cyanobacteria Blooms On Caribbean Spiny Lobster Population Dynamics In Florida Bay Usa, Donald C. Behringer, Mark J. Butler Iv
Biological Sciences Faculty Publications
No abstract provided.
The Effects Of Chronic Inorganic And Organic Phosphate Exposure On Bactericidal Activity Of The Coelomic Fluid Of The Sea Urchin Lytechinus Variegatus (Echinodermata: Echinoidea), S. Anne Boettger, James B. Mcclintock
The Effects Of Chronic Inorganic And Organic Phosphate Exposure On Bactericidal Activity Of The Coelomic Fluid Of The Sea Urchin Lytechinus Variegatus (Echinodermata: Echinoidea), S. Anne Boettger, James B. Mcclintock
Biology Faculty Publications
No abstract provided.
Satellite-Detected Fluorescence Reveals Global Physiology Of Ocean Phytoplankton, Michael J. Behrenfeld, T.K. Westberry, Emmanuel Boss, R.T. O'Malley, D.A. Siegel, Jerry D. Wiggert, B.A. Franz, G.C. Feldman, S.C. Doney, J.K. Moore, G. Dall'olmo, A.J. Milligan, I. Lima, N. Mahowald
Satellite-Detected Fluorescence Reveals Global Physiology Of Ocean Phytoplankton, Michael J. Behrenfeld, T.K. Westberry, Emmanuel Boss, R.T. O'Malley, D.A. Siegel, Jerry D. Wiggert, B.A. Franz, G.C. Feldman, S.C. Doney, J.K. Moore, G. Dall'olmo, A.J. Milligan, I. Lima, N. Mahowald
Faculty Publications
Phytoplankton photosynthesis links global ocean biology and climate-driven fluctuations in the physical environment. These interactions are largely expressed through changes in phytoplankton physiology, but physiological status has proven extremely challenging to characterize globally. Phytoplankton fluorescence does provide a rich source of physiological information long exploited in laboratory and field studies, and is now observed from space. Here we evaluate the physiological underpinnings of global variations in satellite-based phytoplankton chlorophyll fluorescence. The three dominant factors influencing fluorescence distributions are chlorophyll concentration, pigment packaging effects on light absorption, and light-dependent energy-quenching processes. After accounting for these three factors, resultant global distributions of …
Genetic Variation For Carcass Quality Traits In Cultured Sea Bass (Dicentrarchus Labrax), Eric A. Saillant, Mathilde Dupont-Nivet, Marie Sabourault, Pierrick Haffray, Stanislas Laureau, Marie-Odile Vidal, Béatrice Chatain
Genetic Variation For Carcass Quality Traits In Cultured Sea Bass (Dicentrarchus Labrax), Eric A. Saillant, Mathilde Dupont-Nivet, Marie Sabourault, Pierrick Haffray, Stanislas Laureau, Marie-Odile Vidal, Béatrice Chatain
Faculty Publications
Genetic parameters for carcass quality traits were estimated in 27 families of sea bass (3 dams x 9 sires factorial mating design), raised mixed in the same tanks starting before hatching. O. spring parentage was determined a posteriori using 6 microsatellite loci. Carcass quality traits were recorded at 818 days post fertilization (mean standard length: 32.6 +/- 3.1 cm). Genetic parameters were estimated from the sire half sib variance and covariance components. Heritability of body weight (BW) and carcass processing traits (standardized to body weight) percent head weight (Head%), percent viscera weight (Viscera%) and percent visceral fat weight (VisceFat%) were …
Arkansas State University Students Examine Calif. Seal, Aldemaro Romero Jr.
Arkansas State University Students Examine Calif. Seal, Aldemaro Romero Jr.
Publications and Research
No abstract provided.
Ozark Cavefish Aka Amblyopsis Rosae, Aldemaro Romero Jr.
Ozark Cavefish Aka Amblyopsis Rosae, Aldemaro Romero Jr.
Publications and Research
No abstract provided.