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Articles 1 - 30 of 111
Full-Text Articles in Life Sciences
Number 30 (December 1994), Southern Fishes Council
Number 30 (December 1994), Southern Fishes Council
Southeastern Fishes Council Proceedings
(December 1994) - Notes on the Status and Life History of the Northern Madtom, Noturus stigmosus, in Mississippi. By G.R. Parson, 3 pp.
New Distribution Records of Gulf Slope Drainage Fishes in the Ocmulgee River System, Georgia. By H.L. Bart, et al., 7 pp.
Minutes, Regional Reports, Announcement.
Front Matter, Southeastern Fishes Council
Front Matter, Southeastern Fishes Council
Southeastern Fishes Council Proceedings
No abstract provided.
Minutes - Business Meeting, Southeastern Fishes Council
Minutes - Business Meeting, Southeastern Fishes Council
Southeastern Fishes Council Proceedings
No abstract provided.
Notes On The Status And Life History Of The Northern Madtom, Noturus Stigmosus, In Mississippi, Glenn R. Parsons
Notes On The Status And Life History Of The Northern Madtom, Noturus Stigmosus, In Mississippi, Glenn R. Parsons
Southeastern Fishes Council Proceedings
No abstract provided.
New Distribution Records Of Gulf Slope Drainage Fishes In The Ocmulgee River System, Georgia, Henry L. Bart Jr., Michael S. Taylor, Jeffrey T. Harbaugh, James W. Evans, Steven L. Schleiger, Wayne Clark
New Distribution Records Of Gulf Slope Drainage Fishes In The Ocmulgee River System, Georgia, Henry L. Bart Jr., Michael S. Taylor, Jeffrey T. Harbaugh, James W. Evans, Steven L. Schleiger, Wayne Clark
Southeastern Fishes Council Proceedings
No abstract provided.
Regional Sfc Reports, Southeastern Fishes Council
Regional Sfc Reports, Southeastern Fishes Council
Southeastern Fishes Council Proceedings
No abstract provided.
Announcement, Southeastern Fishes Council
Announcement, Southeastern Fishes Council
Southeastern Fishes Council Proceedings
No abstract provided.
Accuracy Assessment Of The Large-Scale Dynamic Ocean Topography From Topex/Poseidon Altimetry, B. D. Tapley, D. P. Chambers, C. K. Shum, R. J. Eanes, J. C. Ries, R. H. Stewart
Accuracy Assessment Of The Large-Scale Dynamic Ocean Topography From Topex/Poseidon Altimetry, B. D. Tapley, D. P. Chambers, C. K. Shum, R. J. Eanes, J. C. Ries, R. H. Stewart
Marine Science Faculty Publications
The quality of TOPEX/POSEIDON determinations of the global scale dynamic ocean topography have been assessed by determining mean topography solutions for successive 10-day repeat cycles and by examining the temporal changes in the sea surface topography to identify known features. The assessment is based on the analysis of TOPEX altimeter data for cycles 1 through 36. Important errors in the tide model used to correct the altimeter data have been identified. The errors were reduced significantly by use of a new tide model derived with the TOPEX/POSEIDON measurements. Maps of the global 1-year mean topography, produced using four of the …
Ecosystem Process Modeling Of Submerged Aquatic Vegetation In The Lower Chesapeake Bay, R. L. Wetzel, M. B. Meyers
Ecosystem Process Modeling Of Submerged Aquatic Vegetation In The Lower Chesapeake Bay, R. L. Wetzel, M. B. Meyers
Reports
No abstract provided.
Distribution Of Submerged Aquatic Vegetation In The Chesapeake Bay And Tributaries And Chincoteague Bay - 1993, Robert J. Orth, Judith F. Nowak, Gary F. Anderson, Jennifer R. Whiting
Distribution Of Submerged Aquatic Vegetation In The Chesapeake Bay And Tributaries And Chincoteague Bay - 1993, Robert J. Orth, Judith F. Nowak, Gary F. Anderson, Jennifer R. Whiting
Reports
No abstract provided.
The Warnbro Sound Crab Fishery Draft Management Plan., Fiona Crowe
The Warnbro Sound Crab Fishery Draft Management Plan., Fiona Crowe
Fisheries management papers
In recent years fishing effort for the blue summer/manna crabs (Portunus pelagicus) in Warnbro Sound has increased dramatically and concerns have been raised about the state of stocks of crabs in Warnbro Sound. As a result of the increased pressure being put on the limited resource, the relationship between professional and recreational user groups has become sensitive. It is therefore appropriate that measures ensure the responsible management of the Warnbro Sound Crab Fishery be introduced. Gear, bag limit and size restrictions on the taking of blue swimmer crabs by recreational fishermen already exists as part of the the overall recreational …
Shark Bay World Heritage Area Draft Management Plan For Fish Resources, Fisheries Department Of Western Australia
Shark Bay World Heritage Area Draft Management Plan For Fish Resources, Fisheries Department Of Western Australia
Fisheries management papers
Shark Bay was inscribed on the World Heritage List in December 1991 on the basis of its natural values. The Department of Conservation and Land Management (CALM) is the management agency with responsibility for the oversight and development of management plans dealing with both the marine and terrestrial aspects of the World Heritage Area. This Draft plan deals with the management of fish resources in the Shark Bay World Heritage Area which are the responsibility of the Fisheries Department of Western Australia.
Settlement Of Oyster (Crassostrea-Virginica) Larvae - Effects Of Water-Flow And A Water-Soluble Chemical Cue, Ej Turner, Rk Zimmerfaust, Ma Palmer, M Luckenbach, Nd Pentcheff
Settlement Of Oyster (Crassostrea-Virginica) Larvae - Effects Of Water-Flow And A Water-Soluble Chemical Cue, Ej Turner, Rk Zimmerfaust, Ma Palmer, M Luckenbach, Nd Pentcheff
VIMS Articles
Although previous evidence indicates that larvae of benthic marine invertebrates can respond to waterborne cues in still water, the importance of waterborne cues in mediating natural settlement out of flowing water has been questioned. Here, we summarize the results of flume experiments demonstrating enhanced settlement of oyster larvae in small target wells (circles of 7-cm diam) with the release of a waterborne settlement cue compared to identical substrates without the cue. In concurrent still-water experiments, more oyster larvae settled in solutions of waterborne cue than in seawater controls. Velocity and electrochemical measurements of a conservative tracer verified that at low …
Metabolism Of Antarctic Micronektonic Crustacea As A Function Of Depth Of Occurrence And Season, Joseph J. Torres, A. V. Aarset, J. Donnelly, Thomas L. Hopkins, T. M. Lancraft, D. G. Ainley
Metabolism Of Antarctic Micronektonic Crustacea As A Function Of Depth Of Occurrence And Season, Joseph J. Torres, A. V. Aarset, J. Donnelly, Thomas L. Hopkins, T. M. Lancraft, D. G. Ainley
Marine Science Faculty Publications
Oxygen comsumption rates were determined on 21 species of crustaceans typical of the Southern Ocean micronektonic crustacean assemblage during spring (November), fall (March), and winter (June-August). Specimens were collected in the Scotia-Weddell Sea region in the vicinity of 60-degrees-S, 40-degrees-W in the upper 1000 m of the water column. Respiration (y, mul O2mg-1 wet mass h-1) declined with depth of occurrence (x, m) according to the equation y = 0.125 x-0.172 +/- 0.052 (p < 0.05) despite the isothermal character of the water column, suggesting that lower metabolic rates are a temperature-independent adaptation to life in the deep sea. Three species of Crustacea showed a lowered metabolism during the winter season: the krill Euphausia superba and the 2 hyperiid amphipods Cyllopus lucasii and Vibilia stebbingi. Critical oxygen partial pressure (Pc) varied between 29 and 52 mm Hg, well below the lowest PO2 found in the water column. It is suggested that the long nights of the Antarctic winter decrease the effectiveness of visual predation in the epipelagic zone, allowing lowered metabolic rates to be a viable overwintering strategy for some species.
Rock Lobster Industry Advisory Commitee Chairman's Report, October 1994 - The Western Rock Lobster Fishery - Management Proposals For The 1994/95 And 1995/96 Seasons, Rock Lobster Industry Advisory Committee, Peter Rogers
Rock Lobster Industry Advisory Commitee Chairman's Report, October 1994 - The Western Rock Lobster Fishery - Management Proposals For The 1994/95 And 1995/96 Seasons, Rock Lobster Industry Advisory Committee, Peter Rogers
Fisheries management papers
The failures of past restrictions on fishing effort to fully halt the decline of the breeding stock led to the formation of a sub-committee of the Rock Lobster Industry Advisory Committee. The prime objective of the sub-committee is to evaluate effective long term strategies for managing the fishery so that breeding stock is maintained at an adequate level despite the inevitable increases in catching efficiency. The purpose of this report is firstly to advise industry of the management proposals for the 1994/95 seasons and secondly to form a basis for industry consultation on management arrangements for the 1995/96 season.
Long Term Management Strategies For The Western Rock Lobster Fishery (4 Volumes) - Law Enforcement Considerations (Volume 4), Neil Mclaughlan
Long Term Management Strategies For The Western Rock Lobster Fishery (4 Volumes) - Law Enforcement Considerations (Volume 4), Neil Mclaughlan
Fisheries management papers
This report has been prepared for the consideration of the RLIAC Sub Committee in consultation with members of the Sub Committee working group on law enforcement and with senior staff of the Operations Division of the Fisheries Department. It is focussed exclusively on law enforcement issues associated with the management options for the West Australian west coast rock lobster fishery which were under consideration by the Sub Committee at the time of report preparation and should be read in conjunction with Fisheries Management Paper No. 67 entitled "Evaluation of management options" which covers the broader industry management issues. This report …
Long Term Management Strategies For The Western Rock Lobster Industry (4 Volumes) - Economic Efficiency Of Alternative Input And Output Based Management Systems In The Western Rock Lobster Fishery (Volume 2), Bob Lindner
Fisheries management papers
Since 1965, the Western Rock Lobster Fishery has been managed by what is essentially a license limitation scheme invoiving restricted entry for boats, and strict controls on the aggregate number of pots which can be used by the commercial fishing sector. By most measures, management of this fishery has been highly successful. Biological over-exploitation of the fish stock has been prevented, at least until recently. Notwithstanding these achievements, there is widespread concern that the future profitability, and even the viability of the industry is under threat unless the current management practices are reformed. Because of the complexity and intrinsic uncertainty …
Long Term Management Strategies For The Western Rock Lobster Fishery (4 Volumes) - A Market-Based Economic Assessment For The Western Rock Lobster Industry (May 1994) (Volume 3), Marec Pty Ltd
Fisheries management papers
In October 1992 a special Sub-Committee of the Rock Lobster Industry Advisory Committee was set up to consider and evaluate future management strategies for the rock lobster fishery. Pursuant to this the Director of Fisheries commissioned a marketing study that is the basis of this report. This study was commenced in early October 1993 and completed in May 1994. This study looked at the market implications of fishery's management strategies. In particular it assesses how the existing management structure limits the potential for the lobster industry to maximise the financial return, and in doing so provides an insight into the …
Long Term Management Strategies For The Western Rock Lobster (4 Volumes) - Evaluation Of Management Options (Volume 1), B. K. Bowen, Rock Lobster Industry Advisory Committee
Long Term Management Strategies For The Western Rock Lobster (4 Volumes) - Evaluation Of Management Options (Volume 1), B. K. Bowen, Rock Lobster Industry Advisory Committee
Fisheries management papers
This report has been written following approval by the Minister for Fisheries of a recommendation by the Rock LObster Industry Advisory Committee that a major evaluation of future management options for the western rock lobster fishery be undertaken. The report provides background information on the management strategies and principles of the fishery, its stock status, the use of input and output controls and the size of the fishing fleet. The report concludes with an examination of the effect of maintaining effort (input) controls and moving to a system of variable effort (TAE/ITEs) or moving to direct (output) controls on the …
Effect Of Decompression On Mesopelagic Gelatinous Zooplankton: A Comparison Of In-Situ And Shipboard Measurements Of Metabolism, T. G. Bailey, Joseph J. Torres, M. J. Youngbluth, G. P. Owen
Effect Of Decompression On Mesopelagic Gelatinous Zooplankton: A Comparison Of In-Situ And Shipboard Measurements Of Metabolism, T. G. Bailey, Joseph J. Torres, M. J. Youngbluth, G. P. Owen
Marine Science Faculty Publications
Weight- and carbon-specific rates of respiration for 4 mesopelagic gelatinous zooplankton (2 ctenophores, 1 trachymedusa and 1 pelagic holothurian) measured in situ were 2 to 5 times higher than those from shipboard incubations. These results support the theory that removal of deep-living gelatinous species from natural environments can adversely affect their metabolism. The disparity between in situ and shipboard treatments is most simply explained by an interaction between pressure and activity, i.e. a loss of motor activity due to decompression occurred among animals used in shipboard experiments.
Biochemical And Histological Changes During Ovarian Development Of Cobia, Rachycentron Canadum, From The Northern Gulf Of Mexico, Patricia M. Biesiot, Robert E. Caylor, James S. Franks
Biochemical And Histological Changes During Ovarian Development Of Cobia, Rachycentron Canadum, From The Northern Gulf Of Mexico, Patricia M. Biesiot, Robert E. Caylor, James S. Franks
Faculty Publications
Female cobia, Rachycentron canadum, were sampled on their spawning grounds in the Northern Gulf of Mexico to study changes in proximate analysis (protein, lipid, carbohydrate, and ash) of the ovaries during gonadal maturation. Four major stages of oocyte development were studied: stage 1, previtellogenesis; stage 2, vitellogenesis; stage 3, final maturation; and stage 4, postovulation. Cobia are multiple spawning fish; therefore, ovaries engaged in a sequential round of oogenesis were distinguished as stages 1' and 2'. Protein was the major constituent of cobia ovaries and its contribution of cobia ovaries and its contribution remained fairly constant (49-55% fo the …
Proximate Composition And Overwintering Strategies Of Antarctic Micronektonic Crustacea, Joseph J. Torres, J. Donnelly, Thomas L. Hopkins, T. M. Lancraft, A. V. Aarset, D. G. Ainley
Proximate Composition And Overwintering Strategies Of Antarctic Micronektonic Crustacea, Joseph J. Torres, J. Donnelly, Thomas L. Hopkins, T. M. Lancraft, A. V. Aarset, D. G. Ainley
Marine Science Faculty Publications
Proximate (protein, lipid, carbohydrate and chitin) and elemental (carbon and nitrogen) composition were determined for 18 species of Antarctic micronektonic Crustacea, representing the majority of species found in the Antarctic water column. Individuals used in the analyses were captured during fall and winter; for 8 species data were collected in both seasons. Seven of the 8 species showed some evidence that combustion of body stores were an aid to surviving the winter months; comparison with data from other investigators suggests that most of the species inhabiting shallow and mid-depths exhibit some degree of combustion of body stores during winter. Three …
Seasonal Phytoplankton Dynamics In The Pagan River, David Wade Seaborn
Seasonal Phytoplankton Dynamics In The Pagan River, David Wade Seaborn
Biological Sciences Theses & Dissertations
The composition and seasonal abundance patterns for phytoplankton in the Pagan River, Virginia, were determined. This river is characterized as a nutrient enriched system with annual mean levels of total nitrogen and phosphorus at 1.8 and 0.8 mg/I respectively. Three phytoplankton maxima occurred during the year with the highest in fall, followed by summer and spring peaks. A diatom flora was dominant throughout the year at concentrations of 107 to 108 cells/I. Other algal populations exhibited distinct periods of abundance, which seasonally varied in magnitude and time of development. Turbidity levels were high throughout the year, with a mean secchi …
Experimental Culture And Particle Filtration By Asian Moon Scallops, Amusium Pleuronectes, Michael A. Rice, Robert B. Rheault, Miguel S. Perez, Vicente S. Perez
Experimental Culture And Particle Filtration By Asian Moon Scallops, Amusium Pleuronectes, Michael A. Rice, Robert B. Rheault, Miguel S. Perez, Vicente S. Perez
Michael A Rice
Growth rates were determined for scallops (35-75 mm valve height) held in pocket nets and lantern nets at varying densities. The Ford-Walford linear transformation of the von Bertalanffy growth equation was used to allow quantification of food-limited stunting. Pocket nets allowed for greater growth of scallops than did the lantern nets at all stocking densities. The growth rates of scallops in pocket nets, nevertheless, were well below the growth of scallops in the wild. Clearance rates of Caribbean strains of Isochrysis galbana (C-ISO) and Chaetocerous gracilus (C-Cg) were determined for moon scallops. Amusin pleuronectes, in static chambers at 28ºC. The …
Future Of Management Of Recreational Gill, Haul, And Cast Netting In Western Australia And Summary Of Submissions To The Netting Review, F. B. Prokop, L. M. Adams
Future Of Management Of Recreational Gill, Haul, And Cast Netting In Western Australia And Summary Of Submissions To The Netting Review, F. B. Prokop, L. M. Adams
Fisheries management papers
The results of a major review into recreational gill and haul netting in Western Australia were announced by the Minister for Fisheries, Hon. Monty House MLA on 24 December 1993. This document presents the findings of the recreational netting review and the process which resulted in the announced changed to management practices.
Equatorially Trapped Waves Of A Coupled Ocean-Atmosphere System, Chunzai Wang, Robert H. Weisberg
Equatorially Trapped Waves Of A Coupled Ocean-Atmosphere System, Chunzai Wang, Robert H. Weisberg
Marine Science Faculty Publications
Equatorially trapped waves of a simplified coupled ocean-atmosphere system are described by applying the formalism for conventional equatorially trapped waves with the assumption that the zonal wind stress and sea surface temperature perturbations are proportional. In this system, inertial-gravity and Rossby-gravity waves are unaffected by coupling whereas Rossby and Kelvin waves are affected, and in the low-frequency limit, these Rossby and Kelvin waves transform to slow westward and eastward propagating wave modes, respectively. The primary modifications by air-sea coupling are a decrease in phase speed and an increase in meridional scale. The properties of these coupled waves are useful in …
A Pc-Based Tidal Prism Water Quality Model For Small Coastal Basins And Tidal Creeks, Albert Y. Kuo, Kyeong Park
A Pc-Based Tidal Prism Water Quality Model For Small Coastal Basins And Tidal Creeks, Albert Y. Kuo, Kyeong Park
Reports
No abstract provided.
Factors Affecting The Abundance Of Juvenile Fish Species On A Temperate Artificial Reef, Daniel Pondella, John Stephens
Factors Affecting The Abundance Of Juvenile Fish Species On A Temperate Artificial Reef, Daniel Pondella, John Stephens
Daniel Pondella
In contrast to most artificial reefs which are placed at relatively deep depths so as not to interfere with shipping, rocky breakwaters provide important habitat in the intertidal-shallow subtidal zone. This zone is especially preferred for recruitment by many rocky shore fishes. The breakwaters of King Harbor, Redondo Beach, California enhance this zone. Further, the lee of the outer breakwater provides a stable, quiet water area for numerous Young-of-Year (YOY) fishes. By means of SCUBA we monitored YOY abundance from 1986-1990. During these five years there were dramatic natural and anthropogenic disturbances of the habitat. With little inter-annual variation of …
Port Everglades Macroinvertebrate Monitoring: Monitoring Of Benthic Macroinvertebrate Assemblages At The Southport Turning Basin And Adjacent Areas Of John U. Lloyd State Recreation Area: January 1994, Charles G. Messing, Richard E. Dodge
Port Everglades Macroinvertebrate Monitoring: Monitoring Of Benthic Macroinvertebrate Assemblages At The Southport Turning Basin And Adjacent Areas Of John U. Lloyd State Recreation Area: January 1994, Charles G. Messing, Richard E. Dodge
Marine & Environmental Sciences Faculty Reports
This report documents the January 1994 monitoring of benthic macroinvertebrate assemblages in the Port Everglades Southport turning basin vicinity and adjacent areas of John U. Uoyd State Recreation Area. This is the sixth monitoring effort of the series carried out by Nova Southeastern University Oceanographic Center. Sampling was carried out chiefly during 8- 25 January. Hand collections and a few crab survey stations were delayed until 16-25 February due totides and weather.
Temporal Alternation Between Light- And Nutrient-Limitation Of Phytoplankton Production In A Coastal Plain Estuary., Jonathan Pennock, Jonathan H. Sharp
Temporal Alternation Between Light- And Nutrient-Limitation Of Phytoplankton Production In A Coastal Plain Estuary., Jonathan Pennock, Jonathan H. Sharp
School of Marine Science and Ocean Engineering
ABSTRACT: The potential for Light- and nutrient-limitation of phytoplankton production was examined in the Delaware Estuary, USA, by combining a hierarchy of expenmental approaches including smallscale bioassay experiments, ecosystem-level analysis of nutrient concentration and stoichiometric ratios, and light-limitation modeling. Light was found to be the predominate regulator of phytoplankton growth throughout the estuary during the winter period as a result of high turbidity and a wellmixed water column. However, during late spring, phosphorus (P) was found to limit growth. This observation was confirmed at each of the experimental levels, and was related to several factors, including elevated input ratios (230:l) …