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Articles 6361 - 6390 of 7430

Full-Text Articles in Marine Biology

Fisheries Research Report No 105 - The Western Rock Lobster Fishery 1986/87 To 1990/91, C. F. Chubb, E. H. Barker, R. S. Brown Jul 1996

Fisheries Research Report No 105 - The Western Rock Lobster Fishery 1986/87 To 1990/91, C. F. Chubb, E. H. Barker, R. S. Brown

Fisheries Research Reports

This report on the western rock lobster (Panulirus cygnus, George 1962) fishery covers the five seasons 1986/87 to 1990/91 and is the latest in a series of reports on the State's largest and most valuable fishery. While more detailed data bases exist, these reports form a historical record of basic data for use by both industry and research workers, now and in the future. Catch and fishing effort in the seasons (1986/87 to 1990/91) varied between 8500 and 12300 tonnes and 11.3 and 12.8 million pot lifts respectively. This report provides detail on the distribution of catches and fishing effort; …


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 1996, Charles G. Messing, Richard E. Dodge Jun 1996

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 1996, Charles G. Messing, Richard E. Dodge

Marine & Environmental Sciences Faculty Reports

This report documents the January 1996 monitoring of benthic macroinvertebrate assemblages in the Port Everglades Southport turning basin vicinity and adjacent areas of John U. Lloyd State Recreation Area. This is the eighth monitoring effort of the series carried out by Nova Southeastern University Oceanographic Center. Collections were made between 17 and 31 January 1996.


Fisheries Research Report No 104 - Assessment Of The Effects Of A Trial Period Of Unattended Recreational Netting In Selected Estuaries Of Temperate Western Australia, Between 1 January 1994 And 30 June 1995, R. C. Lenanton, R. Allison, Sg Ayvazian Jun 1996

Fisheries Research Report No 104 - Assessment Of The Effects Of A Trial Period Of Unattended Recreational Netting In Selected Estuaries Of Temperate Western Australia, Between 1 January 1994 And 30 June 1995, R. C. Lenanton, R. Allison, Sg Ayvazian

Fisheries Research Reports

Gill nets have been used in coastal marine and estuarine waters of Western Australia to take fish for sale and/or domestic consumption since the State was first settled. However, over recent years, as the usage of these coastal waters has continued to increase, and the competition for fish resources becomes more intense, fishing methods, such as unattended gill nets that are indiscriminate with respect to target species, and generally ,wasteful of resources have become less tolerated by the general community.

As part of a push for tighter controls on the use of recreational gill nets, a requirement for fishers to …


Offshore Constitutional Settlement 1995, H. G. Brayford, G. E. Lyon Jun 1996

Offshore Constitutional Settlement 1995, H. G. Brayford, G. E. Lyon

Fisheries Management Papers

The Offshore Constitutional Settlement OCS is a legal arrangement between the Commonwealth and State Governments, and defines control over the fisheries which operate off each State of Australia. For the Western Australian coast, the first set of arrangements took effect in 1987. The OCS of 1995 specifies five arrangements, under which the fisheries inside the 200 nautical mile approximately 370 km limit of the Australian Fishing Zone AFZ come under either State, Commonwealth, or joint control.


High-Resolution (104) Years Deep-Sea Foraminiferal Stable Isotope Records Of The Eocene-Oligocene Climate Transition, James C. Zachos, Terrence M. Quinn, Karen A. Salamy Jun 1996

High-Resolution (104) Years Deep-Sea Foraminiferal Stable Isotope Records Of The Eocene-Oligocene Climate Transition, James C. Zachos, Terrence M. Quinn, Karen A. Salamy

Marine Science Faculty Publications

We have constructed high‐resolution (104– 105 years) benthic foraminiferal δ13C and δ18O records for the upper Eocene through lower Oligocene of two pelagic sequences, Deep Sea Drilling Project (DSDP) Site 522 in the Angola Basin, South Atlantic Ocean, and Ocean Drilling Program (ODP) Site 744 in the southern Indian Ocean. These records provide improved constraints on both the timing and magnitude of marine oxygen and carbon isotope events from 30 to 35 Ma. The oxygen isotope records indicate that the ubiquitous δ18O increase (Oi‐1), which marks the rapid expansion of continental ice sheets and a minimum of 3° to 4°C …


Regional Sfc Reports, Southeastern Fishes Council May 1996

Regional Sfc Reports, Southeastern Fishes Council

Southeastern Fishes Council Proceedings

No abstract provided.


Geographic Distributions Of Eastern And Western Mosquitofishes (Poeciliidae: Gambusia): Delineation Of Ranges Using Fin Ray Counts, Robert A. Angus, W. Mike Howell May 1996

Geographic Distributions Of Eastern And Western Mosquitofishes (Poeciliidae: Gambusia): Delineation Of Ranges Using Fin Ray Counts, Robert A. Angus, W. Mike Howell

Southeastern Fishes Council Proceedings

No abstract provided.


Abstracts From The Symposium On Imperiled Fishes And Aquatic Communities Across The Southern Landscape: Spatiotemporal Databases For The 21st Century May 1996

Abstracts From The Symposium On Imperiled Fishes And Aquatic Communities Across The Southern Landscape: Spatiotemporal Databases For The 21st Century

Southeastern Fishes Council Proceedings

No abstract provided.


Front Matter, Southeastern Fishes Council May 1996

Front Matter, Southeastern Fishes Council

Southeastern Fishes Council Proceedings

No abstract provided.


Number 33 (May 1996), Southern Fishes Council May 1996

Number 33 (May 1996), Southern Fishes Council

Southeastern Fishes Council Proceedings

(May 1996) - Geographic Distribution of Eastern and Western Mosquitofishes (Poeciliidae: Gambusia): Delineation of Ranges using Fin Ray Counts. By Robert A. Angus, W. Mike Howell

Imperiled Fishes and Aquatic Communities Across The Southern Landscape: Spatiotemporal Data Bases For The 21st Century. By Melvin L. Warren, JP.

Regional SFC Reports


Seasonal And Mesoscale Variability In The Distribution Of Antarctic Krill, Euphausia Superba, West Of The Antarctic Peninsula, Cathy Meyer Lascara Apr 1996

Seasonal And Mesoscale Variability In The Distribution Of Antarctic Krill, Euphausia Superba, West Of The Antarctic Peninsula, Cathy Meyer Lascara

OES Theses and Dissertations

Observations collected between November 1991 and September 1993 during four multidisciplinary cruises were analyzed to provide a description of seasonal and mesoscale variability in the distribution and abundance of Antarctic krill, Euphausia superba, within continental shelf waters west of the Antarctic Peninsula and to investigate possible relationships between variability in krill distributions and variability in selected environmental parameters. Acoustic measurements of krill were made each season at designated locations to estimate the abundance of krill, in terms of vertically-integrated krill biomass and the number of aggregations, characterize the depth distribution of krill, and provide a quantitative description of the size, …


Port Everglades Macroinvertebrate Monitoring: Monitoring Of Benthic Macroinvertebrate Assemblages At The Southport Turning Basin And Adjacent Areas Of John U. Lloyd State Recreation Area: August 1995 (Including A Summary Of Previous Survey Results, 1991-1995), Charles G. Messing, Richard E. Dodge Mar 1996

Port Everglades Macroinvertebrate Monitoring: Monitoring Of Benthic Macroinvertebrate Assemblages At The Southport Turning Basin And Adjacent Areas Of John U. Lloyd State Recreation Area: August 1995 (Including A Summary Of Previous Survey Results, 1991-1995), Charles G. Messing, Richard E. Dodge

Marine & Environmental Sciences Faculty Reports

This report documents the August 1995 monitoring of benthic macro invertebrate assemblages in the Port Everglades Southport turning basin vicinity and adjacent areas of John U. Lloyd State Recreation Area. This is the ninth monitoring effort of the series carried out by Nova Southeastern University Oceanographic Center. Samples were taken chiefly during the second through third weeks of September, having been delayed beyond the end of August by successive weather problems associated with the unusually active hurricane season.


A Report On The Issues Affecting The Use Of The Dampier Archipelago, Peter Driscoll Mar 1996

A Report On The Issues Affecting The Use Of The Dampier Archipelago, Peter Driscoll

Fisheries Management Papers

This report was commissioned by the Minister for Fisheries following concerns about resource sharing, allocation of licences and leases for pearling and aquaculture, recreational and commercial fishing opportunities, and local residents continued ability to access the islands and marine areas of the Dampier Archipelago. The purpose of this report is to provide a scoping document for a marine planning study for the Dampier Archipelago for the Fisheries Department and the Minister for Fisheries.


Fishermen's Views On The Future Management Of The Rock Lobster Fishery: A Report Prepared On Behalf Of The Rock Lobster Industry Advisory Committee, The Marketing Centre, Rock Lobster Industry Advisory Committee Mar 1996

Fishermen's Views On The Future Management Of The Rock Lobster Fishery: A Report Prepared On Behalf Of The Rock Lobster Industry Advisory Committee, The Marketing Centre, Rock Lobster Industry Advisory Committee

Fisheries Management Papers

In June 1995, a self-completion survey of fishermen in the rock lobster fishery was sent out by The Marketing Centre to 589 licensees. A total of 206 valid responses were received. The questionnaire was fairly long and dealt with a number of complex issues. As such, this response rate of 36.0% compares favorably with the average for postal surveys of around 40.0%. The following represents the main findings from the survey.


Same Fish - Different Rules - Proceedings Of The National Fisheries Management Network Workshop Held As Part Of The Third Australasian Fisheries Managers Conference August 1995, F. B. Prokop Mar 1996

Same Fish - Different Rules - Proceedings Of The National Fisheries Management Network Workshop Held As Part Of The Third Australasian Fisheries Managers Conference August 1995, F. B. Prokop

Fisheries Management Papers

This workshop represents the third time that a specific recreational fisheries workshop has been held in conjunction with the Australasian Fisheries Managers Conference. It is designed to analyse the different management approaches from the various fisheries agencies which have responsibility for selected species. The case studies that make up the workshop have been selected to represent the diversity of situations including freshwater, marine, pelagic and invertebrate species.


Balancing The Scales: Access And Equity In Fisheries Management - Proceedings Of The Third Australasian Fisheries Managers Conference, Rottnest Island, Western Australia, 2-4 August 1995, Patricia Summerfield Feb 1996

Balancing The Scales: Access And Equity In Fisheries Management - Proceedings Of The Third Australasian Fisheries Managers Conference, Rottnest Island, Western Australia, 2-4 August 1995, Patricia Summerfield

Fisheries Management Papers

The papers reproduced in this volume were presented at the Third Australasian Fisheries Managers Conference held at Kingstown Environmental Education Centre, Rottnest Island, Western Australia, from 2-4 August 1995. Two presentations have not been received in full written form and one paper was not available for publication due to copyright being held elsewhere. Abstracts of these papers are included in the proceedings. The papers are arranged in order of presentation at the Conference. The scenarios used in the workshop sessions are reproduced at the end of the proceedings for information.


Management Arrangements For Specimen Shell Collection In Western Australia, 1995, Jonathon Hs Barrington, C A. Campbell Feb 1996

Management Arrangements For Specimen Shell Collection In Western Australia, 1995, Jonathon Hs Barrington, C A. Campbell

Fisheries Management Papers

The Specimen Shell Fishery in Western Australia is based on the collection of marine species of the phylum Mollusca for the purposes of display, collection, cataloguing, classification and sale. Specimen shells may be alive or dead at the time of take and include beach-washed shells. Fossilised shells do not constitute specimen shells. This document has been prepared to detail the legislative requirements of the Western Australian Government, as well as to fulfill the requirements under the Commonwealth Wildlife Protection (Regulation of Exports and Imports) Act 1982 to allow for the export of specimen shells from Western Australian waters and the …


The Visceral Retia Mirabilia Of Tuna And Sharks: An Annotated Translation And Discussion Of The Eschricht And Müller 1835 Paper And Related Papers, Douglas S. Fudge, E. Don Stevens Feb 1996

The Visceral Retia Mirabilia Of Tuna And Sharks: An Annotated Translation And Discussion Of The Eschricht And Müller 1835 Paper And Related Papers, Douglas S. Fudge, E. Don Stevens

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

The focus of this volume is an annotated translation of the classic work by J. Müller and D.F. Eschricht on the visceral anatomy of the bluefin tuna, Thunnus thynnus, published in 1835. This text, with its outstanding figures, is to this day the definitive work on the anatomy of the bluefin viscera and especially on the circulation to and from the viscera. In addition, the text is historically important in that it represents the first comprehensive description of visceral relia mirabilia in a fish. In this work, Eschricht & Müller meticulously elucidate the pattern of blood flow to, within, …


John U. Lloyd Beach State Recreation Area Nature Guide, Nsu Oceanographic Center Jan 1996

John U. Lloyd Beach State Recreation Area Nature Guide, Nsu Oceanographic Center

Technical Reports

John U. Lloyd State Park is a 251 acre recreation area located on Ocean Drive in Dania, Broward County, Florida. The park is adjacent to Port Everglades and has a beach front park spanning 2.5 miles. It preserves some of south Florida's vanishing natural resources, while at the same time offers the public usage of beach and water recreational activities. Surf fishing, picknicking, and canoeing along the tidal waterway New River Sound or Whiskey Creek are just some of the activities the public can enjoy.

The recreation area was named in memory of the late John U. Lloyd, Broward County's …


Gonadal Maturation In The Cobia, Rachycentron Canadum, From The Northcentral Gulf Of Mexico, Jeffrey M. Lotz, Robin M. Overstreet, James S. Franks Jan 1996

Gonadal Maturation In The Cobia, Rachycentron Canadum, From The Northcentral Gulf Of Mexico, Jeffrey M. Lotz, Robin M. Overstreet, James S. Franks

Gulf and Caribbean Research

Gonadal maturation of cobia, Rachycentron canadum, was evaluated by examining 508 specimens from its recreational fishery. Specimens were collected off southeast Louisiana to northwest Florida by hook-and-line during February through October 1987-1991. Fork lengths (FL) of these fish ranged from 580-1,530 mm, with corresponding weights of 2.0-43.5 kg. The female:male ratio was 1:0.37. Using a combination of oocyte size frequency and histological assessment of many of the fish, we determined that females were ripe from May through September, with atretic oocytes occurring in some fish from July through October. Degenerating hydrated oocytes in July and October and the presence …


Food Of Cobia, Rachycentron Canadum, From The Northcentral Gulf Of Mexico, Gabriele H. Meyer, James S. Franks Jan 1996

Food Of Cobia, Rachycentron Canadum, From The Northcentral Gulf Of Mexico, Gabriele H. Meyer, James S. Franks

Gulf and Caribbean Research

The stomach contents of 403 cobia, Rachycentron canadum, caught in the northcentral Gulf of Mexico recreational fishery from April through October of 1987-1990 were examined. Cobia ranged from 373-1,530 mm in fork length. Of the 403 stomachs, 287 (71.2%) contained at least one identifiable prey taxon. Crustaceans, consisting primarily of portunid crabs, were the predominant food. Crustaceans occurred in 79.1% of the stomachs and comprised 77.6% of the total number of identifiable prey. The second most important prey category was fish which was dominated by hardhead catfish, Arius felis, and eels. Fish occurred in 58.5% of the stomachs …


Cryopreservation Of Sperm Of Spotted Seatrout (Cynoscion Nebulosus), William R. Wayman, R. Glenn Thomas, Terrence R. Tiersch Jan 1996

Cryopreservation Of Sperm Of Spotted Seatrout (Cynoscion Nebulosus), William R. Wayman, R. Glenn Thomas, Terrence R. Tiersch

Gulf and Caribbean Research

Cryopreservation of fish sperm has applications in preserving genetic resources from stocks of endangered fishes, replenishing fisheries, reducing the number of males needed in hatchery situations, and allowing repeated spawning of specific males. As part of a larger study on artificial breeding of sciaenid fishes, we developed procedures for collection, handling, refrigerated storage, and cryopreservation of spotted seatrout sperm. Hanks' balanced salt solution (HBSS) was used as an extender for collection and storage of sperm. Sperm motility in relation to graded concentrations of HBSS was used to determine the osmolality at which sperm were activated. Based on these findings, HBSS …


Distribution Of Loxothylacus Texanus (Cirripedia: Rhizocephala) Parasitizing Crabs Of The Genus Callinectes In The Southwestern Gulf Of Mexico, Fernando Alvarez, Jorge Calderon Jan 1996

Distribution Of Loxothylacus Texanus (Cirripedia: Rhizocephala) Parasitizing Crabs Of The Genus Callinectes In The Southwestern Gulf Of Mexico, Fernando Alvarez, Jorge Calderon

Gulf and Caribbean Research

A preliminary study on the interaction between the parasitic barnacle Loxothylacus texanus and two of its host species, the blue crab Callinectes sapidus and the dark blue crab C. rathbunae, in the Gulf of Mexico is presented. Data were obtained from 923 crabs, 162 C. sapidus and 761 C. rathbunae, deposited in the Colección de Crustáceos, Instituto de Biologia, Universidad Nacional Autónoma de México (UNAM), that were collected in 14 coastal lagoons and sites along the Mexican coast of the Gulf of Mexico. The distribution of L. texanus parasitizing each one of the host species, mean host size …


Reproductive Strategies In A Population Of Gobiosoma Bosci (Osteichthyes: Gobiidae) With Slow And Fast Maturing Individuals, Candace H. Conn, David L. Bechler Jan 1996

Reproductive Strategies In A Population Of Gobiosoma Bosci (Osteichthyes: Gobiidae) With Slow And Fast Maturing Individuals, Candace H. Conn, David L. Bechler

Gulf and Caribbean Research

The reproductive biology of Gobiosoma bosci collected from November 1986 to October 1987 in the McFaddin Wildlife Refuge in southeast Texas was studied by using morphometric data. Males achieved greater weights per unit length than females, and longevity was about 12 to 13 months. GSI values and mean monthly ovum diameters indicated that the breeding season ran from April to September, with a major activity peak in May and a minor peak in September. Significant differences in male and female standard lengths (SL), ovum diameter, and egg number existed for sexually mature specimens between the first and second peaks of …


Seasonal Migration In The Southern Hogchoker, Trinectes Maculatus Fasciatus (Achiridae), Tanya L. Peterson Jan 1996

Seasonal Migration In The Southern Hogchoker, Trinectes Maculatus Fasciatus (Achiridae), Tanya L. Peterson

Gulf and Caribbean Research

Life history patterns often respond to local environmental conditions. The seasonal migration pattern of the northern hogchoker has been described, but the southern subspecies rarely has been studied. To document the migratory movements and the habitat characteristics of the southern hogchoker, long-term survey data and specimens collected during 1993 were examined. Moderate depth (5.8-6.4 m), low water clarity (0-1.2 m), moderate oxygen concentration (4-9 ppm), and sand-mud substrata generally defined hogchoker habitats. Hogchoker habitats only showed seasonal shifts in temperature and salinity characteristics. Hogchokers were only collected in low salinity (0-2 ppt) waters during the winter, but exhibited three abundance …


Observations On An Isolated Population Of Sagitta Hispida Conant (Chaetognatha) In A Tropical Lagoon System Of Northeast Yucatan (Mexico), Jose N. Alvarez-Cadena, Eduardo Suarez-Morales, Jerry A. Mclelland Jan 1996

Observations On An Isolated Population Of Sagitta Hispida Conant (Chaetognatha) In A Tropical Lagoon System Of Northeast Yucatan (Mexico), Jose N. Alvarez-Cadena, Eduardo Suarez-Morales, Jerry A. Mclelland

Gulf and Caribbean Research

Monthly zooplankton collections were carried out from January to December 1991 at two sampling sites, Cuenca Norte and Bojórquez lagoon, in the Nichupté lagoon system, a partially enclosed network of interconnected waterways located in the northeastern region of the Yucatan Peninsula (Mexico) adjacent to the Caribbean Sea. Only one species of Chaetognatha, Sagitta hispida Conant, was present and was more abundant at Cuenca Norte (total density 450.6 organisms/m3) than at Bojórquez (138.6 organisms/m3). The latter site is smaller, more physically isolated, and more environmentally stressed than the former. From monthly gonadal and length-frequency analyses of 1390 specimens, it was found …


Aricidea (Allia) Bryani, A New Species Of Polychaete (Polychaeta: Paraonidae) From The Northern Gulf Of Mexico, Gary R. Gaston, Jerry A. Mclelland Jan 1996

Aricidea (Allia) Bryani, A New Species Of Polychaete (Polychaeta: Paraonidae) From The Northern Gulf Of Mexico, Gary R. Gaston, Jerry A. Mclelland

Gulf and Caribbean Research

Aricidea bryani, a new species of polychaete (Polychaeta: Paraonidae) belonging to the subgenus Allia Strelzov 1973, is described from shallow subtidal sediments along the northern shore of Mississippi Sound, an estuary of the northern Gulf of Mexico. The new species is distinguished from other members of the subgenus by the presence of tuberculate neuropodial lobes in the anterior 15-20 setigers, a cirriform median antenna that extends posteriorly to setiger three, and by modified neuropodial setae that are abruptly tapered at mid-length, but lack terminal aristae.


Cholangioma In A Wild-Caught Sheepshead Minnow (Cyprinodon Variegatus) From The Northern Gulf Of Mexico, Lee A. Courtney Jan 1996

Cholangioma In A Wild-Caught Sheepshead Minnow (Cyprinodon Variegatus) From The Northern Gulf Of Mexico, Lee A. Courtney

Gulf and Caribbean Research

A single case of ac holangioma occurred in the liver of a wild-caught sheepshead minnow (Cyprinodon variegatus). This is the first biliary neoplasm and second case of a hepatic neoplasm reported from a wild-caught specimen of this species. The findings further demonstrate the susceptibility of the sheepshead minnow to neoplasm development and add support to its selection as a subject for field monitoring of carcinogenic exposure.


First Sperm Whale (Physeter Macrocephalus) Record In Mississippi, Jon C. Peterson, Wayne Hoggard Jan 1996

First Sperm Whale (Physeter Macrocephalus) Record In Mississippi, Jon C. Peterson, Wayne Hoggard

Gulf and Caribbean Research

A sperm whale (Physeter macrocephalus) stranded on the south shore of Horn Island, Mississippi, represents the first record of this species in the state. The specimen, a neonate female, was euthanized at the stranding site. Tissue samples, blood samples, and stomach contents were analyzed following gross necropsy.


The Texture Of Surficial Sediments In Central Long Island Sound Off Milford, Connecticut., Roman Zajac, Larry J. Poppe, B B. Taylor, Dann Blackwood, Ralph S. Lewis, Mary L. Digiacomo-Cohen Jan 1996

The Texture Of Surficial Sediments In Central Long Island Sound Off Milford, Connecticut., Roman Zajac, Larry J. Poppe, B B. Taylor, Dann Blackwood, Ralph S. Lewis, Mary L. Digiacomo-Cohen

Biology and Environmental Science Faculty Publications

The purpose of this study was to determine the grain-size distributions and associated statistical parameters of the surficial sediment samples from central Long Island Sound off Milford, Connecticut. These grain-size data, which help to ground-truth a pre-existent sidescan sonar survey (Poppe and others, 1995a; Twichell and others, in press), will eventually be used to describe the sedimentary processes active in this portion of central Long Island Sound. Other potential uses for these textural data include benthic biologic studies that evaluate faunal distributions and relate them to habitats (Zajac and others, 1995), and geochemical studies involving the distribution, transport and deposition …