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Articles 1 - 30 of 134
Full-Text Articles in Life Sciences
Pioneering Lobster Aquaculture In Rhode Island, Michael A. Rice
Pioneering Lobster Aquaculture In Rhode Island, Michael A. Rice
Michael A Rice
Abstracts Of Papers Presented At The 16th International Pectinid Workshop Halifax, Nova Scotia, Canada May 11–18, 2007, G. Jay Parsons
Abstracts Of Papers Presented At The 16th International Pectinid Workshop Halifax, Nova Scotia, Canada May 11–18, 2007, G. Jay Parsons
VIMS Articles
VIMS Author Contributions: Scallop dredge selectivity: A review of sequential ring size increases from 1994 to 2003 in the US sea scallop fishery By: DuPaul, William D.; Rudders, David B. Pages: 1307-1308 Industry-based sea scallop dredge surveys in support of rotational area management By: Rudders, B.; DuPaul, William D. Pages: 1337-1338 Size-selectivity of the commercial northwest Atlantic sea scallop (Placopecten magellanicus) dredge By: Yochum, Noelle; DuPaul, William D. Pages: 1355-1355
Restoring Wildlife Habitat On Rat Island: Environmental Assessment
Restoring Wildlife Habitat On Rat Island: Environmental Assessment
United States Fish and Wildlife Service: Publications
Restoration of natural ecosystem function on Rat Island promises to re-establish native seabirds and other native species, thus returning this wilderness island to a healthy natural community. This restoration cannot occur until the island is cleared of the invasive non-native rats that now dominate the living community.
Introduced non-native species are a leading cause of extinctions in island communities worldwide. Increasingly, land managers are removing introduced species to aid in the restoration of native ecosystems. Rats are responsible for 40-60% of all recorded bird and reptile extinctions worldwide. Given their widespread successful colonization on islands and the resulting impact to …
Fisheries Research Report No. 160 - Development Of Biodiversity And Habitat Monitoring Systems For Key Trawl Fisheries In Western Australia., Mervi Kangas, S. Morrison, P. Unsworth, Eva K M Lai, I. Wright, Adrian W. Thomson
Fisheries Research Report No. 160 - Development Of Biodiversity And Habitat Monitoring Systems For Key Trawl Fisheries In Western Australia., Mervi Kangas, S. Morrison, P. Unsworth, Eva K M Lai, I. Wright, Adrian W. Thomson
Fisheries research reports
Final FRDC report - Project 2002/038
The need for this project was identified through the ESD Risk Assessment workshops held for the Shark Bay and Exmouth Gulf trawl fisheries in May and October 2001. Bycatch issues in the Shark Bay and Exmouth fisheries were identified as a moderate risk through an Ecological Risk Assessment workshop. A better understanding of the faunal composition and habitat preferences of bycatch species in both trawled and untrawled areas has assisted in determining the level of risk to bycatch species. The project provided baseline data on biodiversity and variability of trawl bycatch on and off …
Understanding Localized Movements And Habitat Associations Of Summer Flounder In Chesapeake Bay Using Passive Acoustic Arrays : Final Report, Mary C. Fabrizio, Mark J. Henderson, Jon A. Lucy
Understanding Localized Movements And Habitat Associations Of Summer Flounder In Chesapeake Bay Using Passive Acoustic Arrays : Final Report, Mary C. Fabrizio, Mark J. Henderson, Jon A. Lucy
Reports
No abstract provided.
Evaluation Of Striped Bass Stocks In Virginia : Monitoring And Tagging Studies, 2004-2008 - Annual Report 1 September 2006 - 31 August 2007, Philip W. Sadler, John M. Hoenig, Robert E. Harris, Rebecca J. Wilk, Lydia M. Goins
Evaluation Of Striped Bass Stocks In Virginia : Monitoring And Tagging Studies, 2004-2008 - Annual Report 1 September 2006 - 31 August 2007, Philip W. Sadler, John M. Hoenig, Robert E. Harris, Rebecca J. Wilk, Lydia M. Goins
Reports
This report presents the results of striped bass (Morone saxatilis) tagging and monitoring activities in Virginia during the period 1 September 2006 through 31 August 2007. It includes an assessment of the biological characteristics of striped bass taken from the 2007 spring spawning run, estimates of annual survival and fishing mortality based on annual spring tagging, and the preliminary results of the fall 2006 study that documents the prevalence of mycobacterial infections of striped bass in Chesapeake Bay. The information contained in this report is required by the Atlantic States Marine Fisheries Commission and is used to implement a coordinated …
Fisheries Research Report No. 168 - Sustainable Development Of Barramundi Cage Aquaculture At Lake Argyle., Brett Glencross, S. Percival, B. Jones, J Hughes
Fisheries Research Report No. 168 - Sustainable Development Of Barramundi Cage Aquaculture At Lake Argyle., Brett Glencross, S. Percival, B. Jones, J Hughes
Fisheries research reports
Final FRDC report and KSRP report - Project 2003/026
A preliminary sensory evaluation study was conducted to confirm the presence of a taint issue. Prior to this the issue was reliant on purchaser feedback and was not verified independently. To examine the issue of flavour taint a series of barramundi samples were collected from Lake Argyle (purged and unpurged), wild (estuarine) and marine farmed barramundi were assessed. No significant differences in flavour attributes and/or acceptability attributes were detected between the wild and farmed barramundi, provided the barramundi was either marine-farmed or purged. However, it was determined that a clear “muddy” …
Fisheries Research Report 167 - Digital Video Techniques For Assessing Population Size Structure And Habitat Of Greenlip And Roe's Abalone., A.M. Hart, Frank Fabris
Fisheries Research Report 167 - Digital Video Techniques For Assessing Population Size Structure And Habitat Of Greenlip And Roe's Abalone., A.M. Hart, Frank Fabris
Fisheries research reports
Final FRDC report- Project 2002/079
A digital video image (DVI) stock monitoring programme was developed for the Haliotis laevigata and H. roei abalone fisheries in Western Australia. The program used industry divers to collect stock density and length-frequency data using digital video from 51 survey sites across the fishery, while image extraction, data processing and storage is carried out by research staff. Training videos, DVDs, and a comprehensive suite of experimental tests on both abalone species were utilised to achieve this outcome. Comparisons between DVI data collected by industry divers, and fishery independent survey (FIS) data showed mean legal sized …
Aquaculture Of Coral, Live Rocks And Associated Products. Draft Final 'Policy' Paper., Department Of Fisheries Western Australia
Aquaculture Of Coral, Live Rocks And Associated Products. Draft Final 'Policy' Paper., Department Of Fisheries Western Australia
Fisheries management papers
Aquarium enthusiasts use corals, live rock and associated products (e.g. sand) to enhance the aesthetics or function of the marine aquaria they keep and enjoy. There is a large and growing market for these products.
The Department of Fisheries has prepared this draft ‘Final Policy Paper’ as the second phase in the development of a management framework for the aquaculture of coral and live rock. The document outlines the position and needs of the emerging industry and identifies the management arrangements and policies the Department of Fisheries is proposing to implement.
2006 National Survey Of Fishing, Hunting, And Wildlife-Associated Recreation
2006 National Survey Of Fishing, Hunting, And Wildlife-Associated Recreation
United States Fish and Wildlife Service: Publications
The National Survey of Fishing, Hunting, and Wildlife-Associated Recreation reports results from interviews with U.S. residents about their fishing, hunting, and wildlife watching. This report focuses on 2006 participation and expenditures of persons 16 years of age and older.
However, in addition to 2006 estimates, we also provide trend information in the Highlights section and Appendix C of the report. The 2006 numbers reported can be compared with those in the 1991, 1996, and 2001 Survey reports because they used similar methodologies. However, 2006 estimates should not be directly compared with results from Surveys conducted earlier than 1991 because of …
Simulated Migration Of European Silver Eel; Swim Capacity And Cost Of Transport, Guido Van Den Thillart, Arjan Palstra, Vincent Van Ginneken
Simulated Migration Of European Silver Eel; Swim Capacity And Cost Of Transport, Guido Van Den Thillart, Arjan Palstra, Vincent Van Ginneken
Journal of Marine Science and Technology
An important aspect of the reproduction of European silver eels is the huge distance (ca 6000-km) they have to swim to reach their spawning grounds. So, obviously endurance swimming is a major requirement for successful reproduction. As migrating eels don’t feed, two major questions should be asked: 1) what are the energy costs to cross the Atlantic Ocean, 2) How much fat do eels need to cover the expenses. From swim tunnel experiments run for days till even 6 months we could determine the cost of transport (COT): 0.5 kJ km-1 kg-1. This amount is about 5 times lower than …
Effects Of Elevated Seawater Co2 Concentration On The Meiofauna, Haruko Kurihara, Atsushi Ishimatsu, Yoshihisa Shirayama
Effects Of Elevated Seawater Co2 Concentration On The Meiofauna, Haruko Kurihara, Atsushi Ishimatsu, Yoshihisa Shirayama
Journal of Marine Science and Technology
An increase in atmospheric CO2 concentration leads to a rise in CO2 concentrations and a decrease in pH of the ocean surface water due to continuous gas exchange between air and seawater, which may have serious impacts on neritic marine organisms. In this study, we assessed the impacts of elevated CO2 concentrations on meiobenthic organisms by exposing them to seawater equilibrated with air (control: CO2 concentration 380 ppm) or CO2-enriched air (2,000 ppm higher than control, CO2 concentration predicted by the year 2300) for 56 days in microcosms. We observed no significant differences in the abundance of total meiofauna, nematodes, …
Role Of Sex Hormones In Sex Change Of Grouper, Masaru Nakamura, Mohammad Ashraful Alam, Yasuhisa Kobayashi, Ramji Kumar Bhandari
Role Of Sex Hormones In Sex Change Of Grouper, Masaru Nakamura, Mohammad Ashraful Alam, Yasuhisa Kobayashi, Ramji Kumar Bhandari
Journal of Marine Science and Technology
Groupers are commercially important coral reef fishes because of their excellent flavor and high price. Due to their sex changing nature, commercial aquaculture operations have not yet been developed for groupers. Sex steroids play a critical role in the initiation of sex change, but their exact function and mechanism of action are unknown. We have investigated the role of sex steroids in protogynous sex change using the honeycomb grouper, Epinephelus merra, for a number of years. Our studies have shown that sex steroids play a major role in sex change. In this review, we integrate our findings to better understand …
Developmental Reproductive Effects Of Exposure To Pharmaceutical Steroids In The Aquatic Environment: Studies On Mosquitofish (Gambusia Affinis Affinis),Roach (Rutilus Rutilus) And Medaka(Oryzias Latipes), Taisen Iguchi, Yoshinao Katsu, Hiroshi Urushitani, Anke Lange, Charles R. Tyler
Developmental Reproductive Effects Of Exposure To Pharmaceutical Steroids In The Aquatic Environment: Studies On Mosquitofish (Gambusia Affinis Affinis),Roach (Rutilus Rutilus) And Medaka(Oryzias Latipes), Taisen Iguchi, Yoshinao Katsu, Hiroshi Urushitani, Anke Lange, Charles R. Tyler
Journal of Marine Science and Technology
Pharmaceutical androgens and estrogens discharged into the aquatic environment are now known to induce adverse effects in fish and are a health concern for wildlife. Mosquitofish (Gambusia affinis) exposed to a pharmaceutical androgen, trenbolone, used to enhance cattle growth and found to pollute waters below feedlots in the USA, has been shown to alter the development of the anal fin of the females and disrupt gonopodium development in fry. In our work, we showed that altered gonopodium development was associated with disruption in the normal patterns of expression of 2 cloned androgen receptors. Furthermore, exposure to trenbolone at 1 µg/L …
Adaptation To Deep-Sea Hydrothermal Vents: Some Molecular And Developmental Aspects, Florence Pradillon, Françoise Gaill
Adaptation To Deep-Sea Hydrothermal Vents: Some Molecular And Developmental Aspects, Florence Pradillon, Françoise Gaill
Journal of Marine Science and Technology
Alvinella pompejana is a polychaetous annelid inhabiting the surface of deep sea hydrothermal chimneys along the ridge of the east part of the Pacific ocean. The main characteristic of this emblematic species is its habitat, which is very aggressive considering its temperature. The exceptional thermotolerance of this species (up to 80°C) has been the subject of much controversy. This review is focused on the thermal adaptation of this worm regarding molecular data relative to its extracellular matrix and life history traits.
Neuroendocrinology Of Fish Metamorphosis And Puberty: Evolutionary And Ecophysiological Perspectives, Sylvie Dufour, Karine Rousseau
Neuroendocrinology Of Fish Metamorphosis And Puberty: Evolutionary And Ecophysiological Perspectives, Sylvie Dufour, Karine Rousseau
Journal of Marine Science and Technology
Metamorphosis and puberty are two major events of the postembryonic development in Vertebrates. Based on some examples from fish species, we review the definition, role and regulation of these events, analyze their common and different features, as well as their impact on the evolution and diversity of life cycles. The term of puberty, firstly defined in humans, has been subsequently extended to the first acquisition of the capacity to reproduce in all mammalian and non-mammalian vertebrates as well as in invertebrates. By definition, puberty occurs only once in the life cycle. However, some similarities may be found with other events, …
Eutrophication In Farmington Bay And Its Potential Impacts On Wildlife, Wayne A. Wurtsbaugh
Eutrophication In Farmington Bay And Its Potential Impacts On Wildlife, Wayne A. Wurtsbaugh
Watershed Sciences Faculty Publications
No abstract provided.
Marine Resource Bulletin Vol. 39, No. 3, Virginia Sea Grant, Virginia Institute Of Marine Science
Marine Resource Bulletin Vol. 39, No. 3, Virginia Sea Grant, Virginia Institute Of Marine Science
Virginia Marine Resource Bulletin
IN THIS ISSUE
Cobia Research Helps Aquaculture 2
Cobia (Rachycentron canadum, L.) have many characteristics that make them a promising species for aquaculture production. However, there are a few obstacles to be overcome before mass production takes off. Virginia Sea Grant is funding research on larval morphology in cobia that may help develop commercial feed and improve survivability of larval cobia.
Reality Science 5
The Global Ocean Observing System (GOOS) is a network of observing platforms that measure and collect data on the state of the oceans. The wealth of data collected by GOOS is available not only to scientists …
The Lobster Bulletin, Fall 2007, Lobster Institute, University Of Maine
The Lobster Bulletin, Fall 2007, Lobster Institute, University Of Maine
Lobster Bulletin
The Lobster Bulletin newsletter includes research updates, and information on lobsters and the lobster industry. The Lobster Institute at the University of Maine is dedicated to protecting and conserving the lobster resource, and enhancing lobstering as an industry and a way of life.
Headlines in the Fall 2007 issue include:
- Lobster Institute Honors Long-Time Volunteers at its 20th Anniversary Celebration
- Lobster Institute Unveils New Logo
- Twenty Years of Service
- Maine DMR Announces Online Licensing Services
- Research Report: New Designs for Juvenile Sampling Trap Studied
- The Lobster Institute Celebrates Its 20th Anniversary: 1987-2007
National Wildlife Refuge System: Friends Forward
National Wildlife Refuge System: Friends Forward
United States Fish and Wildlife Service: Publications
Contents:
First Friends Academy Hailed as a Success
Pass the News Around
From the Chief: Out from Behind the Desk
In the Hopper
Six Congressmen to be Honored
Thinking of Starting a Bookstore at Your Refuge?
14,000 Hours and Still Working: Ron Tillier
Focus on Kids and Cranes
On the Fire Lines at Okefenokee Refuge
Fighting Invasives With Education and Cat Traps
An Employment Dream
Grant Deadlines are Fast approaching
Frequently Asked Questions
Calendar of Friends and National Events
Study Confirms Popularity of Outdoor activities
Refuge Update Article Index, Ellen Fritts
Refuge Update Article Index, Ellen Fritts
United States Fish and Wildlife Service: Publications
This document was developed to promote protection of Alaska’ wildlife from nonnative rodents, especially rats. If constitutes a statewide invasive rodent management plan, which is part of a multi-agency effort to minimize the impact of invasive species in Alaska. A literature search and interviews were conducted, and reviews were obtained from experts in Alaska and elsewhere. The plan summarizes resisting information relevant to Alaska and recommends a collaborative structure for undertaking strategic actions, the Alaska Rodent Action Team. It also identifies dozens of strategic actions that are needed to prevent and eradicate invasive rodents. These fall into six categories: legal …
Getting Started With The Water Harvest Program A Guide For Watermen To Make More For Their Catch By Selling Direct At Farmers’ Markets, Jimmy Hogge, Paige Hogge
Getting Started With The Water Harvest Program A Guide For Watermen To Make More For Their Catch By Selling Direct At Farmers’ Markets, Jimmy Hogge, Paige Hogge
Reports
No abstract provided.
Fisheries Research Report No. 166 - Stock Enhancement Of Haliotis Laevigata In Western Australia - A Preliminary Assessment, Anthony M. Hart, Frank Fabris, Sabine Daume
Fisheries Research Report No. 166 - Stock Enhancement Of Haliotis Laevigata In Western Australia - A Preliminary Assessment, Anthony M. Hart, Frank Fabris, Sabine Daume
Fisheries research reports
A preliminary assessment of stock enhancement of Haliotis laevigata (Greenlip abalone) in Western Australia was undertaken with the release of 6,000 abalone near Augusta in 2004. The objective of the project was to obtain quantitative data on the likelihood of enhancement, as an additional management tool to TACs and size-limits, being successful in natural habitats in Western Australia. Baseline surveys coupled with an assessment of growth and survival of released 1+ and 2 + animals were undertaken at 12 sites within Flinders Bay, Augusta. Overall survival was 19% for 1+ age abalone and 27% for 2+ animals after 9 months. …
Fisheries Research Report 165: Biological And Fisheries Data For Managing Deep Sea Crabs In Western Australia - Project 2001/055, Roy Melville-Smith, S M. Norton, Adrian W. Thomson
Fisheries Research Report 165: Biological And Fisheries Data For Managing Deep Sea Crabs In Western Australia - Project 2001/055, Roy Melville-Smith, S M. Norton, Adrian W. Thomson
Fisheries research reports
The crystal crab fishery on the west coast of Western Australia has only been commercially fished since the late 1990s. When this project was initiated in 2001, only compulsory monthly catch and effort data were being collected. This project has successfully set up the methods and means to collect and analyse more appropriate commercial catch and effort data for the fishery. Fishers now record detailed daily catch and effort data for legal as well as undersize and berried crabs and the Department of Fisheries, WA, has a regular monitoring programme to record population size structure information.
This project has also …
Limb Regeneration After Multiple Autotomy And Coxae Removal In The Blue Crab Callinectes Sapidus, Jennifer Ambler
Limb Regeneration After Multiple Autotomy And Coxae Removal In The Blue Crab Callinectes Sapidus, Jennifer Ambler
OES Theses and Dissertations
This study investigated limb regeneration in the juvenile blue crab, Callinectes sapidus, specifically the role of the coxa and pedal nerve innervation of the regenerative limb bud over time. The coxa is a leg segment that has been defined as the source of positional, cellular, and neuronal information needed for limb regeneration in brachyuran crabs. This study indicates that removal of coxae under regenerative and non-regenerative conditions did not deter limb regeneration. The coxa is not the exclusive location of limb regenerative information since limbs re-grew with normal positional and functional arrangement in 86% of crabs showing regeneration at removal …
काटाल मात्स्यिकी की प्रबंधन प्रणाली -एक अध्यन (Management System Of Katal Fisheries: An Study), Ganesh Chandra, K K. Sharma, M. Choudhury
काटाल मात्स्यिकी की प्रबंधन प्रणाली -एक अध्यन (Management System Of Katal Fisheries: An Study), Ganesh Chandra, K K. Sharma, M. Choudhury
Ganesh Chandra
No abstract provided.
Annual Report Of Lands Under Control Of The U.S. Fish & Wildlife Service As Of September 30, 2007, U. S. Fish And Wildlife Service
Annual Report Of Lands Under Control Of The U.S. Fish & Wildlife Service As Of September 30, 2007, U. S. Fish And Wildlife Service
United States Fish and Wildlife Service: Publications
Annual Report of Lands Under Control Of the U.S. Fish and Wildlife Service As of September 30, 2007
Message from the Director
Key to Real Property Numbers
Map of National Fish and Wildlife Management Areas
Map of Waterfowl Productions Areas
Significant Land Acquisition Accomplishments in Fiscal Year 2007
Tables
1 Summary by Categories
2 Summary by States, Associated Governments and Possessions
2A FY 2007 Summary by States, Associated Governments and Possessions
3 National Wildlife Refuges
4 Waterfowl Production Areas
5 Coordination Areas
6 Administrative Sites
7 National Fish Hatcheries
8 Wilderness Areas in National Wildlife Refuges and National Fish Hatcheries …
Managing The Recreational Catch Of Demersal Scalefish On The West Coast. Future Management Scenarios For Community Consideration, Jon Ford (Minister For Fisheries; The Kimberley, Pilbara And Gascoyne)
Managing The Recreational Catch Of Demersal Scalefish On The West Coast. Future Management Scenarios For Community Consideration, Jon Ford (Minister For Fisheries; The Kimberley, Pilbara And Gascoyne)
Fisheries management papers
This paper discusses the major issues around controlling the total recreational catch. It also considers some of the tools available to manage the catch to specific target levels. The sustainability of fish species must be a key driver. However, the impacts on the social amenity of recreational fishing must also be taken into account. Any particular tool, if used on its own and to its full extent, may be rather “blunt” in its application and its impacts unacceptable to large parts of the community. The most effective and acceptable management package will probably be a mix of tools, supported by …
Fisheries Research Report No. 163 - Spatial Scales Of Exploitation Among Populations Of Demersal Scalefish: Implications For Management. Part 1: Stock Status Of The Key Indicator Species For The Demersal Scalefish Fishery In The West Coast Bioregion., Department Of Fisheries, Western Australia
Fisheries Research Report No. 163 - Spatial Scales Of Exploitation Among Populations Of Demersal Scalefish: Implications For Management. Part 1: Stock Status Of The Key Indicator Species For The Demersal Scalefish Fishery In The West Coast Bioregion., Department Of Fisheries, Western Australia
Fisheries research reports
Final FRDC report - Project 2003/052
The levels of exploitation on dhufish and pink snapper across the West Coast Bioregion and for baldchin groper at the Abrolhos Islands are above international benchmark standards. This indicates that these stocks are currently being overfished and are therefore likely to be being depleted to levels below those necessary to ensure their long-term sustainability. The current reliance of the dhufish catch on a single recruitment pulse together with the extremely truncated age distribution of pink snapper indicates that both these stocks are particularly vulnerable.
The West Coast Demersal Scalefish Fishery is a multi-species fishery …
Evaluating Recruitment Of American Eel, Anguilla Rostrata, To The Potomac River (Spring 2007), Hank Brooks, Wendy A. Lowery, Aimee Halvorson, James Gartland, Marcel M. Montane
Evaluating Recruitment Of American Eel, Anguilla Rostrata, To The Potomac River (Spring 2007), Hank Brooks, Wendy A. Lowery, Aimee Halvorson, James Gartland, Marcel M. Montane
Reports
Harvests of American eel along the U.S. Atlantic Coast have declined in recent years, and similar patterns have been noted in the Canadian Maritime Provinces as well as in Europe with its congener, A. anguilla (Ciccotti et al., 4 1995). Fishery independent indices of abundance have also shown a decline in American eel populations in recent years (Richkus and Whalen, 1999; Geer, 2003; Montane and Fabrizio, 2006). Possible explanations for this decline include Gulf Stream shifts, pollution, overfishing, parasites, and barriers to fish passage (Castonguay et al., 1994; Haro et al., 2000). In addition, local factors such as unfavorable wind-driven …