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Articles 5671 - 5700 of 7426

Full-Text Articles in Marine Biology

Front Matter, Southeastern Fishes Council Dec 2003

Front Matter, Southeastern Fishes Council

Southeastern Fishes Council Proceedings

No abstract provided.


Minutes, Business Meeting, Southeastern Fishes Council Dec 2003

Minutes, Business Meeting, Southeastern Fishes Council

Southeastern Fishes Council Proceedings

No abstract provided.


Number 46 (December 2003), Southern Fishes Council Dec 2003

Number 46 (December 2003), Southern Fishes Council

Southeastern Fishes Council Proceedings

(December 2003) - Fish survey and bioassessment of Station Camp Creek in the Upper Kentucky River Drainage. By Jeffery M. Ray and Patrick A. Ceas

Minutes, Business Meeting, 29th Annual Meeting, Southeastern Fishes Council


Fish Survey And Bioassessment Of Station Camp Creek And Sturgeon Creek In The Upper Kentucky River Drainage, Jeffery M. Ray, Patrick A. Ceas Dec 2003

Fish Survey And Bioassessment Of Station Camp Creek And Sturgeon Creek In The Upper Kentucky River Drainage, Jeffery M. Ray, Patrick A. Ceas

Southeastern Fishes Council Proceedings

No abstract provided.


2002 Coastal Municipal Stormwater Infrastructure Mapping Project, Jillian E. Jones Dec 2003

2002 Coastal Municipal Stormwater Infrastructure Mapping Project, Jillian E. Jones

PREP Reports & Publications

This final report describes the grant program funded by NHEP and administered by DES. A Memorandum of Agreement (MOA) between NHEP and DES created a grant program to provide assistance to coastal communities to develop storm sewer infrastructure maps. DES issued a request for proposals (RFP), chose grant recipients, and managed the grant agreements. This report provides details on the grant projects completed by Portsmouth and Seabrook. The deadline for completion of all grant projects was December 31, 2003.


Evaluation Of Effects Of Wastewater Treatment Discharge On Estuarine Water Quality, Carl H. Bolster, Stephen H. Jones, Jonathan M. Bromley Dec 2003

Evaluation Of Effects Of Wastewater Treatment Discharge On Estuarine Water Quality, Carl H. Bolster, Stephen H. Jones, Jonathan M. Bromley

PREP Reports & Publications

This report marks the completion of a two-year project focused on observed and estimated effects of wastewater treatment facilities (WWTFs) on estuarine water quality within the New Hampshire (NH) Seacoast region. This study was designed and carried out in an effort to help the NH Department of Environmental Services (NHDES) and NH Estuaries Project (NHEP) evaluate the effects of WWTF effluent quality on bacterial and nutrient concentrations in New Hampshire’s estuarine waters, as well as to help NHDES/NHEP identify related WWTF infrastructure problems. An extensive database of bacterial and nutrient concentrations in effluent collected post-disinfection from 9 NH WWTFs and …


Interannual Volume Variability In The Tropical Pacific, Christina L. Holland, Gary T. Mitchum Nov 2003

Interannual Volume Variability In The Tropical Pacific, Christina L. Holland, Gary T. Mitchum

Marine Science Faculty Publications

The question of whether or not the volume of the tropical Pacific changes over the course of an El Niño event has potentially important consequences for our understanding of the dynamical mechanisms responsible for El Niño‐Southern Oscillation (ENSO) events. In this study, we examine the volume variability of the tropical Pacific, defined as the areal integral of the sea surface height variability, using TOPEX/Poseidon altimetric sea surface heights and the output of a numerical model. We find that volume gradually builds up in the tropical Pacific prior to a typical ENSO event and rapidly decreases during the event due to …


Peirce Island Pool Discharge Elimination, Natalie Landry Nov 2003

Peirce Island Pool Discharge Elimination, Natalie Landry

PREP Reports & Publications

The Peirce Island Pool is owned by the City of Portsmouth and serves approximately 19,000 swimmers each summer. The pool was originally constructed in the 1930s and updated in the 1970s and again in the mid 1990s. The pool’s 800,000 gallons of water were cleaned through a rapid sand filter. The filter was then cleaned through a backwash process and that wastewater was discharged directly into the Piscataqua River which is part of the Great Bay Estuary. The City sought and was awarded funds through the New Hampshire Estuaries Project (NHEP) to eliminate the direct discharge to the River. The …


Large Scale Ocean Circulation From The Grace Ggm01 Geoid, B. D. Tapley, D. Chambers, S. Bettadpur, J. C. Ries Nov 2003

Large Scale Ocean Circulation From The Grace Ggm01 Geoid, B. D. Tapley, D. Chambers, S. Bettadpur, J. C. Ries

Marine Science Faculty Publications

The GRACE Gravity Model 01 (GGM01), computed from 111 days of GRACE K-band ranging (KBR) data, is differenced from a global mean sea surface (MSS) computed from a decade of satellite altimetry to determine a mean dynamic ocean topography (DOT). As a test of the GGM01 gravity model, large-scale zonal and meridional surface geostrophic currents are computed from the topography and are compared with those derived from a mean hydrographic surface. Reduction in residual RMS between the two by 30–60% (and increased correlation) indicates that the GGM01 geoid represents a dramatic improvement over older geoid models, which were developed from …


The Maintenance Of Conservative Physical Laws Within Data Assimilation Systems, G.A. Jacobs, H.E. Ngodock Nov 2003

The Maintenance Of Conservative Physical Laws Within Data Assimilation Systems, G.A. Jacobs, H.E. Ngodock

Faculty Publications

In many data assimilation applications, adding an error to represent forcing to certain dynamical equations may be physically unrealistic. Four-dimensional variational methods assume either an error in the dynamical equations of motion (weak constraint) or no error (strong constraint). The weak-constraint methodology proposes the errors to represent uncertainties in either forcing of the dynamical equations or parameterizations of dynamics. Dynamical equations that represent conservation of quantities (mass, entropy, momentum, etc.) may be cast in an analytical or control volume flux form containing minimal errors. The largest errors arise in determining the fluxes through control volume surfaces. Application of forcing errors …


A Study Of Enso Prediction Using A Hybrid Coupled Model And The Adjoint Method For Data Assimilation, Eli Galanti, Eli Tziperman, Matthew Harrison, Anthony Rosati, Ziv Sirkes Nov 2003

A Study Of Enso Prediction Using A Hybrid Coupled Model And The Adjoint Method For Data Assimilation, Eli Galanti, Eli Tziperman, Matthew Harrison, Anthony Rosati, Ziv Sirkes

Faculty Publications

An experimental ENSO prediction system is presented, based on an ocean general circulation model (GCM) coupled to a statistical atmosphere and the adjoint method of 4D variational data assimilation. The adjoint method is used to initialize the coupled model, and predictions are performed for the period 1980-99. The coupled model is also initialized using two simpler assimilation techniques: forcing the ocean model with observed sea surface temperature and surface fluxes, and a 3D variational data assimilation (3DVAR) method, similar to that used by the National Centers for Environmental Prediction (NCEP) for operational ENSO prediction. The prediction skill of the coupled …


Coastal Observatory Investigates Energetic Current Oscillations On Southeast Florida Shelf, Alexander Soloviev, Rebekah J. Walker, Robert H. Weisberg, Mark E. Luther Oct 2003

Coastal Observatory Investigates Energetic Current Oscillations On Southeast Florida Shelf, Alexander Soloviev, Rebekah J. Walker, Robert H. Weisberg, Mark E. Luther

Marine & Environmental Sciences Faculty Articles

Coastal circulation along the southeast Florida shelf is strongly related to the dynamics of the Florida Current. The current follows the steep bottom terrain along the shelf break separating the deep ocean from the coastal zone (Figure 1 a, b). Energetic and complex flow regimes arise along the current's western edge, causing transient features such as sub-meso-scale eddies [Lee and Mayer, 1977; Shay et al., 2000] and energetic internal oscillations [Mooers, 1975; Soloviev et al., 2003], which affect mixing between the shelf and deeper ocean waters. Understanding of these regimes is important for modeling and prediction of the …


Environmental Indicator Report: Shellfish, Phil Trowbridge Oct 2003

Environmental Indicator Report: Shellfish, Phil Trowbridge

PREP Reports & Publications

During the fall and winter of 2001-2002, the New Hampshire Estuaries Project’s Technical Advisory Committee (TAC) developed a suite of environmental indicators to track progress toward the NHEP’s management goals and objectives. These indicators were fully described in terms of their performance criteria, statistical methods, and measurable goals in the NHEP’s Monitoring Plan published in March 2003 (NHEP, 2003). From September 2002 to April 2003, the NHEP Coastal Scientist prepared four “Indicator Reports” that summarized the available information and results of statistical tests for each of the indicators. The TAC reviewed and commented on these reports, and then recommended a …


Fall 2003, Nsu Oceanographic Center Oct 2003

Fall 2003, Nsu Oceanographic Center

Currents

No abstract provided.


Use Of Pop-Up Satellite Archival Tags To Demonstrate Survival Of Blue Marlin (Makaira Nigricans) Released From Pelagic Longline Gear, David W. Kerstetter, Brian E. Luckhurst, Eric Prince, John E. Graves Oct 2003

Use Of Pop-Up Satellite Archival Tags To Demonstrate Survival Of Blue Marlin (Makaira Nigricans) Released From Pelagic Longline Gear, David W. Kerstetter, Brian E. Luckhurst, Eric Prince, John E. Graves

Marine & Environmental Sciences Faculty Articles

No abstract provided.


Ocean Observer Study: A Proposed National Asset To Augment The Future U. S. Operational Satellite System, John D. Cunningham, Don P. Chambers, Curtiss O. Davis, Andrew Gerber, Rosalind Hetz, James P. Mcguire, William Pichel Oct 2003

Ocean Observer Study: A Proposed National Asset To Augment The Future U. S. Operational Satellite System, John D. Cunningham, Don P. Chambers, Curtiss O. Davis, Andrew Gerber, Rosalind Hetz, James P. Mcguire, William Pichel

Marine Science Faculty Publications

The next generation of U.S. polar orbiting environmental satellites, are now under development. These satellites, jointly developed by the Department of Defense (DoD), the Department of Commerce (DOC), and the National Aeronautics and Space Administration (NASA), will be known as the National Polar-orbiting Operational Environmental Satellite System (NPOESS). It is expected that the first of these satellites will be launched in 2010. NPOESS has been designed to meet the operational needs of the U.S. civilian meteorological, environmental, climatic, and space environmental remote sensing programs, and the Global Military Space and Geophysical Environmental remote sensing programs. This system, however, did not …


Predicting Fish Species Diversity In Lotic Freshwaters Of Greece, Eugene G. Maurakis, David V. Grimes Oct 2003

Predicting Fish Species Diversity In Lotic Freshwaters Of Greece, Eugene G. Maurakis, David V. Grimes

Virginia Journal of Science

Objectives were to test the hypothesis that stream order and stream width alone account for species diversity in drainages of Greece, and to create a mathematical model that predicts fish diversity in small and medium sized freshwater streams in the southern Balkan Peninsula in accord with the stream classification system proposed by the European Environmental Agency (EEA). Thirty-seven species of fishes in 12 families (Petromyzontidae, Anguillidae, Cyprinidae, Moronidae, Centrarchidae, and Blenniidae) were collected in five stream orders (1-5) from 19 river drainages in Greece in 1993 and from 2000-2002. Numbers of species were significantly correlated with stream order (+), width …


Identification Key To Fishes In Fresh Waters Of Greece, Eugene G. Maurakis, Panos S. Economidis Oct 2003

Identification Key To Fishes In Fresh Waters Of Greece, Eugene G. Maurakis, Panos S. Economidis

Virginia Journal of Science

The European Environmental Agency formulated a biodiversity initiative in 1996 specifying a freshwater stream-monitoring program to inventory, identify and describe aquatic and terrestrial species in European Union countries. With one of the richest freshwater ichthyofaunas in Europe (126 fish taxa: 97 species and 29 subspecies of primary or secondary freshwater fishes), Greece has two extinct fish species, five listed as critically endangered, and 29 considered endangered and/or vulnerable. There are, however, no published identification guides that are available for identifying fish specimens from fresh waters in Greece. We present an English translation of the only available identification key (in Greek) …


Feeding Responses Of Juvenile And Adult Streblospio Benedicti Webster (Spionidae) To Organic Chemicals Bound To Glass Microbeads, Heidi Kathryn Mahon Oct 2003

Feeding Responses Of Juvenile And Adult Streblospio Benedicti Webster (Spionidae) To Organic Chemicals Bound To Glass Microbeads, Heidi Kathryn Mahon

Biological Sciences Theses & Dissertations

Spionid polychaetes feed at the sediment-water interface using a pair of ciliated palps. Polychaetes select food particles based upon characteristics including size, texture, specific gravity and organic coatings. Juvenile and adult spionids have different stable isotopic carbon signals, indicating the potential to differentiate organic cues ontogenetically. In the present study, the feeding responses of juvenile and adult Streblospio benedicti Webster to seven organic coatings bound (five amino acids and two carbohydrates) to glass microbeads were tested. Juveniles and adults were highly selective for all seven types of organically coated beads. Juveniles were highly selective for threonine; whereas adults were highly …


Bear Paw Regional Greenway-Comte Property Easement, Susan Zankel Sep 2003

Bear Paw Regional Greenway-Comte Property Easement, Susan Zankel

PREP Reports & Publications

Bear-Paw Regional Greenways successfully completed the tasks as outlined in the grant application and award from the New Hampshire Estuaries Project as of August 31st, 2003 for the project titled: Natural Resource Mapping and Land Protection Technical Assistance. The project included the completion of a series of Natural Resource Inventory maps that were produced using current statewide natural resource digital data. We worked with a consultant from the Society for the Protection of New Hampshire Forests to produce a total of 40 different large format maps using geographic information systems. The maps produced included: aerial photos, water resource maps, significant …


Fisheries Research Contract Report No. 4 - Determining Waste Excretion Parameters From Barramundi Aquaculture: Final Report For Aquaculture Development Fund Of Wa, Brett Glencross, Neil Rutherford, Wayne Hawkins Sep 2003

Fisheries Research Contract Report No. 4 - Determining Waste Excretion Parameters From Barramundi Aquaculture: Final Report For Aquaculture Development Fund Of Wa, Brett Glencross, Neil Rutherford, Wayne Hawkins

Fisheries Research Contract Reports

This study was undertaken to evaluate the nutrient excretion budgets for each of three key commercial diets when fed to barramundi (Lates calcarifer). The diets differed primarily in their energy density ranging from 21.3 MJ/kg DM to 23.0 MJ/kg DM, with the protein content of each diet being relatively constant at around 550 g/kg DM. The determination of the nutrient excretion budgets required the assessment of the digestibilities of key nutrients from each of the diets and also the specific retention of nutrients over a prolonged period. This necessitated two digestibility trials and a growth trial.

An examination was also …


Freshwater Wetlands Inventory Outreach Activities, West, M, West Environmental, Inc., Carex Ecosystem Sciences Sep 2003

Freshwater Wetlands Inventory Outreach Activities, West, M, West Environmental, Inc., Carex Ecosystem Sciences

PREP Reports & Publications

West Environmental, Inc. together with Carex Ecosystem Sciences and Doucet Survey, under contract with the NH Estuaries Project, have identified and mapped potential freshwater wetland mitigation opportunities in nineteen (19) communities that border coastal or estuarine habitats.


Fisheries Research Contract Report No. 3 - Early Life History Of Abalone (Haliotis Rubra, H. Laevigata): Settlement, Survival And Early Growth. Final Report For Frdc Project 1998/306, Dr Sabine Daume Sep 2003

Fisheries Research Contract Report No. 3 - Early Life History Of Abalone (Haliotis Rubra, H. Laevigata): Settlement, Survival And Early Growth. Final Report For Frdc Project 1998/306, Dr Sabine Daume

Fisheries Research Contract Reports

Australian abalone fisheries produce a high value, export-orientated products that provided 60% of the world supply in 1994 (Fleming, 2000). With wild abalone fisheries declining in countries worldwide, the interest in aquaculture products has increased substantially. The world production of abalone from aquaculture in 1999 was approximately 7,775 tonnes with only 89 tonnes (ca. 1%) being produced in Australia (Fleming, 2000). Abalone farming is expected to develop into a major industry and is a significant investment opportunity (McNamara, Victorian Aquaculture Strategy, May 1997). Future production from the numerous farms and sites either established, under construction or approved in Australia, could …


Characterization Of Ground Water Discharge To Hampton Harbor, Thomas Ballestero Aug 2003

Characterization Of Ground Water Discharge To Hampton Harbor, Thomas Ballestero

PREP Reports & Publications

The project goals were to assess inter-tidal groundwater discharge and concurrent nutrient loading to Hampton Harbor. This will include maps of suspected groundwater discharge zones and measurements of nutrient loading. The principal means of assessment was an aerial survey of the study area during low tide using thermal infrared (TIR) imagery. The TIR imagery was used to detect and locate upwelling groundwater discharge zones within the harbor. The location of groundwater discharge zones as it relates to upgradient land use can be instructive for water quality.


2001 Storm Drain Monitoring And Municipal Training Project, Andrea F. Donlon Aug 2003

2001 Storm Drain Monitoring And Municipal Training Project, Andrea F. Donlon

PREP Reports & Publications

This final report describes the training sessions held for municipal officials in the Seacoast on the topic of investigating and locating illicit discharges into the storm drainage system. A Memorandum of Agreement (MOA) between NHEP and DES established funding for this project. DES held two, half-day training sessions in January 2003, one in Dover and one in Epping. Each training session offered four presentations from DES staff. NHEP funding paid for the printing costs of an illicit discharge detection and elimination manual, handout materials, compact discs containing all of DES’s illicit discharge monitoring data in the coastal watershed, and food …


Who Is Eating Most Of The Zooplankton In The Oceanic Gulf Of Mexico? The Impact Of Mesopelagic Fishes, Tracey Sutton, Scott E. Burghart Aug 2003

Who Is Eating Most Of The Zooplankton In The Oceanic Gulf Of Mexico? The Impact Of Mesopelagic Fishes, Tracey Sutton, Scott E. Burghart

Marine & Environmental Sciences Faculty Proceedings, Presentations, Speeches, Lectures

Deep-sea pelagic fishes are the most abundant vertebrates on Earth, yet their role in the overall economy of these is poorly known. Low latitude oligotrophic regimes, typified by the eastern Gulf of Mexico, constitute most of the world ocean and consequently support the largest global ecosystems. Thus, we have little information on the trophic role of most of Earth's vertebrates. To address this, the diets of an entire midwater fish assemblage (164 species, constituting > 99% of assemblage numbers) were analyzed to assess feeding guilds and predation impact. Zooplanktivory was the dominant feeding mode (80% of prey biomass taken), followed by …


2001 Coastal Illicit Connection Identification And Elimination Grant Project, Andrea F. Donlon Aug 2003

2001 Coastal Illicit Connection Identification And Elimination Grant Project, Andrea F. Donlon

PREP Reports & Publications

This final report describes a grant program funded by NHEP and administered by DES. A Memorandum of Agreement (MOA) between NHEP and DES created a grant program to provide assistance to coastal communities to identify and eliminate illicit discharges into the storm drain system. A total of $60,000 was available for grants to municipalities. DES issued a request for proposals (RFP), chose grant recipients, and managed the grant agreements. This report provides details on the projects completed by Exeter, Dover, and Somersworth. The deadline for completion of all grant projects was June 30, 2003


Summer 2003, Nsu Oceanographic Center Aug 2003

Summer 2003, Nsu Oceanographic Center

Currents

No abstract provided.


Field Observations Of Intraspecific Agonistic Behavior Of Two Crayfish Species, Orconectes Rusticus And Orconectes Virilis, In Different Habitats, Daniel A. Bergman, Paul A. Moore Aug 2003

Field Observations Of Intraspecific Agonistic Behavior Of Two Crayfish Species, Orconectes Rusticus And Orconectes Virilis, In Different Habitats, Daniel A. Bergman, Paul A. Moore

Peer Reviewed Articles

Agonistic behavior is a fundamental aspect of ecological theories on resource acquisition and sexual selection.

Crustaceans are exemplary models for agonistic behavior within the laboratory, but agonistic behavior in natural habitats is often neglected. Laboratory studies do not achieve the same ecological realism as field studies. In an attempt to connect laboratory results to field data and investigate how habitat structure affects agonistic interactions, the nocturnal behavior of two crayfish species was observed by scuba diving and snorkeling in two northern Michigan lakes. Intraspecific agonistic interactions were analyzed in three habitats: two food resources—macrophytes and detritus—and one sheltered habitat. The …


Field Observations Of Intraspecific Agonistic Behavior Of Two Crayfish Species, Orconectes Rusticus And Orconectes Virilis, In Different Habitats, Dan A. Bergman, Paul A. Moore Aug 2003

Field Observations Of Intraspecific Agonistic Behavior Of Two Crayfish Species, Orconectes Rusticus And Orconectes Virilis, In Different Habitats, Dan A. Bergman, Paul A. Moore

Peer Reviewed Articles

Agonistic behavior is a fundamental aspect of ecological theories on resource acquisition and sexual selection. Crustaceans are exemplary models for agonistic behavior within the laboratory, but agonistic behavior in natural habitats is often neglected. Laboratory studies do not achieve the same ecological realism as field studies. In an attempt to connect laboratory results to field data and investigate how habitat structure affects agonistic interactions, the nocturnal behavior of two crayfish species was observed by scuba diving and snorkeling in two northern Michigan lakes. Intraspecific agonistic interactions were analyzed in three habitats: two food resources—macrophytes and detritus—and one sheltered habitat. The …