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- Research and Technical Reports (24)
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Articles 1 - 30 of 125
Full-Text Articles in Animal Sciences
Stock Assessment For The Shark Bay Scallop Fishery, Mervi Kangas, Errol Brown, Marie Shanks, Arani Chandrapavan, Adrian Thomson
Stock Assessment For The Shark Bay Scallop Fishery, Mervi Kangas, Errol Brown, Marie Shanks, Arani Chandrapavan, Adrian Thomson
Fisheries research reports
The Shark Bay scallop fishery is based on a single species Amusium balloti and is the most valuable scallop fishery (AUD 10-57 million) in Western Australia. This species is short-lived, has fast growth and highly variable recruitment which is primarily environmentally driven. The scallop fishery consists of two classes of licences, A and B. There are fourteen Licensed Fishing Boats with A Class licences that target scallops and account for approximately 70% of the catch. There are twenty-seven Class B licences, which primarily fish for prawns (in the Shark Bay Prawn Managed Fishery) with scallops a secondary target species. Restructuring …
Environmental Influences On Juvenile Fish Abundances In A River-Dominated Coastal System, Laure Carassou, Brian Dzwonkowski, Frank J. Hernandez, Jr., Sean P. Powers, William M. Graham, Kyeong Park, John Mareska
Environmental Influences On Juvenile Fish Abundances In A River-Dominated Coastal System, Laure Carassou, Brian Dzwonkowski, Frank J. Hernandez, Jr., Sean P. Powers, William M. Graham, Kyeong Park, John Mareska
University Faculty and Staff Publications
We investigated the influence of climatic and environmental factors on variations in juvenile abundances of marine fishes in a river-dominated coastal system of the north-central Gulf of Mexico, where an elevated primary productivity sustains fisheries of high economic importance. Fish were collected monthly with an otter trawl at three stations near Mobile Bay from 1982 to 2007. Fish sizes were used to isolate juvenile stages within the data set, and monthly patterns in juvenile fish abundance and size were then used to identify seasonal peaks for each species. The average numbers of juvenile fish collected during these seasonal peaks in …
Prey Selection By The Northern Watersnake, Nerodia Sipedon, Kyle O' Connell
Prey Selection By The Northern Watersnake, Nerodia Sipedon, Kyle O' Connell
Department of Environmental Studies: Undergraduate Student Theses
Prey selection and composition of the northern waternake, Nerodia sipedon was investigated between 8/2010 and 3/2011 by palpation of stomach contents in the field and conducting laboratory trials. 41 snakes were captured, five yielded prey contents. Fish parts, freshwater mussels, and an insect exoskeleton were found. No amphibians were found despite availability at study sites. Snakes in the laboratory underwent 22 trials, feeding on 11 occasions. Snakes fed on an equal number of both fish species, revealing no selection. Further research is needed to determine the rate of digestion of N. sipedon.
An Assessment Of Sea Scallop Abundance And Distribution In Selected Areas: Georges Bank Closed Area Ii, Southern New England/Long Island, New York Bight And The Delmarva Closed Area, David Rudders, William D. Dupaul
An Assessment Of Sea Scallop Abundance And Distribution In Selected Areas: Georges Bank Closed Area Ii, Southern New England/Long Island, New York Bight And The Delmarva Closed Area, David Rudders, William D. Dupaul
Reports
No abstract provided.
Blue Swimmer Crab Resource Of South-West Western Australia Harvest Strategy 2020-2025 Draft, Department Of Primary Industries And Regional Development
Blue Swimmer Crab Resource Of South-West Western Australia Harvest Strategy 2020-2025 Draft, Department Of Primary Industries And Regional Development
Fisheries management papers
No abstract provided.
A Test Method For Optimal Micro-Screen Drum Filter Selection, Eoin Dolan, Ronan Oliver, Niall Murphy, Michael O'Hehir
A Test Method For Optimal Micro-Screen Drum Filter Selection, Eoin Dolan, Ronan Oliver, Niall Murphy, Michael O'Hehir
Other resources
In order to meet increasing demand for seafood worldwide Recirculation Aquaculture Systems (RAS) are frequently used. These systems are susceptible to contamination by waste matter including faecal material in the water. It is imperative that this material is removed from the system. The maintenance of good water quality is a pre-requisite to the success of the operation. Negligence in this area will adversely affect animal growth rates and also the economic performance of the system.
Micro-screen drum filters are a popular solution for the removal of this material (Cripps, Simon J. and Bergheim, Asbjørn., 2000). These screens are nominally rated …
Ecosystem Based Fisheries Management Case Study Report West Coast Bioregion, Warrick J. Fletcher, Jennifer Shaw, Daniel J. Gaughan, Sarah J. Metcalf
Ecosystem Based Fisheries Management Case Study Report West Coast Bioregion, Warrick J. Fletcher, Jennifer Shaw, Daniel J. Gaughan, Sarah J. Metcalf
Fisheries research reports
This report documents the outcomes of the Western Australian Marine Science Institution (WAMSI) funded study to examine the costs and benefits of using a bioregional level, Ecosystem Based Fisheries Management (EBFM) approach. The West Coast Bioregion of Western Australia was selected as a case study and the outputs from the use of the draft national EBFM framework were critically examined to determine whether such an approach would result in more efficient and effective management of fisheries. In addition, this report examined whether this EBFM framework provided better linkages between management bodies, allowing broader marine management covering all activities and relevant …
Spatial Distribution Of Shore-Based Fishers In The Greater Perth Metropolitan Area Over Summer 2010/2011, Claire B. Smallwood, Emily A. Fisher, Brent S. Wise, Daniel J. Gaughan
Spatial Distribution Of Shore-Based Fishers In The Greater Perth Metropolitan Area Over Summer 2010/2011, Claire B. Smallwood, Emily A. Fisher, Brent S. Wise, Daniel J. Gaughan
Fisheries research reports
Aerial surveys are a useful technique for estimating numbers of recreational fishers. Following the success of a pilot study to examine the spatial patterns of recreational shore-based fishing activity in the Perth Metropolitan area from April – June 2010, another survey was conducted from December 2010 – February 2011 between Lancelin – Bunbury. More than 7,000 shorebased fishers were counted during 36 aerial flights, with significantly more recorded on morning and afternoon flights, when compared to those conducted at midday. Flights on weekends/public holidays also recorded more fishers than weekdays. The spatial distribution of fishers was variable along the coast, …
The Lobster Bulletin, Fall 2011, Lobster Institute, University Of Maine
The Lobster Bulletin, Fall 2011, 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 2011 issue include:
- Lobster Institute to Present Two Workshops at the Massachusetts Lobstermen's Association Weekend
- Number of Right Whales Up in Bay of Fundy
- Coming 2012 The Lobster Institute's 25th Anniversary
- A Full House for the Lobster Institute's Holiday Lobster & Wine Fest
- Research Report: Squid Outweighs Lobster in Rhode Island Fishery
- Research …
Status Of The Cockburn Sound Crab Fishery, Danielle Johnston, David Harris, Nick Caputi, Simon De Lestang, Adrian Thomson
Status Of The Cockburn Sound Crab Fishery, Danielle Johnston, David Harris, Nick Caputi, Simon De Lestang, Adrian Thomson
Fisheries research reports
Blue swimmer crabs (Portunus armatus) (formerly Portunus pelagicus; Lai et al., 2010) in Cockburn Sound, Western Australia, are the basis of an important commercial and recreational fishery close to the Perth metropolitan area with the commercial fishery achieving a peak catch of 362 t in 1997/98 and a recreational catch of about 18 t. Commercial blue swimmer crab catches declined significantly since 2000 due to low stock abundance, resulting in the closure of the fishery in December 2006.
Beals Historical Society Fall 2011 Newsletter, Carol Davis
Beals Historical Society Fall 2011 Newsletter, Carol Davis
Downeast Fisheries Trail
A quarterly newsletter from the Beals Island Historical Society.
A Study Of Sponge Aquaculture In Jambiani: Is Shallow Farming Feasible?, Sarah Friday
A Study Of Sponge Aquaculture In Jambiani: Is Shallow Farming Feasible?, Sarah Friday
Independent Study Project (ISP) Collection
In the village of Jambiani, Unguja, a Swiss NGO called Marine Cultures has established an experimental sponge farming initiative to improve local employment and support economic development. Currently, the main farming site is only accessible through SCUBA diving. This is consistent with experimental farm sites in other oceanic regions, as most are located in depths of at least five meters with sponges suspended vertically to maximize water flow exposure. Farms located in shallower water may not be conducive to sponge growth due to highly variable environmental conditions; however, no conclusive research has been conducted on this matter (Duckworth 2009). Nonetheless, …
An Assessment Of Icthyofauna And Artisanal Fishing From The Port Of Pedregal In The Golfo De Chiriquí., Kathleen A. Carey
An Assessment Of Icthyofauna And Artisanal Fishing From The Port Of Pedregal In The Golfo De Chiriquí., Kathleen A. Carey
Independent Study Project (ISP) Collection
The artisanal fishery based out of Pedregal, on the Pacific Coast of Panama in the Chiriqui Province was studied to analyze the biodiversity and community structure of the icthyofaunal population and investigate the practices and opinions of the fishermen there. The study area is located in the Gulf of Chiriqui, and is heavily influenced by freshwater runoff from anthropogenically influenced rivers during. This is especially relevant during the rainy season. During two weeks in November, at the end of the rainy season, fishermen from one port in Pedregal were accompanied for the purposes of data collection and interviewing. The data …
What Is The Value Of A Sea Turtle?: A Case Study Of The Conservation Ethics Of Sea Turtle Fishermen In The Caribbean Coast Of Nicaragua, Alicia Conte
Independent Study Project (ISP) Collection
The sea turtle populations on the Caribbean Coast of Nicaragua have dramatically decreased as a result of human use and consumption. All species of sea turtles are endangered and at risk of extinction. This is an environmental issue because if sea turtles go extinct, many other plants and animals in marine ecosystems will be negatively impacted by this loss, and the environment will be drastically altered. This is also problematic for locals who depend on this resource for food and as a source of income. Conservation efforts have been initiated by an international NGO, the Wildlife Conservation Society (WCS); however, …
Executive Summary, Cumberland County Foodshed Assessment, Report 1, Barbara Ives
Executive Summary, Cumberland County Foodshed Assessment, Report 1, Barbara Ives
Local Food Systems
Like everyone else in these troubled economic times, Mainers are looking for ways to create jobs that will remain relevant and vital in a global economy, that cannot be outsourced, and that will regenerate rather than exploit our natural resources.
A growing number of people believe that a food system rooted in local farms, fisheries, and food production and distribution enterprises can strengthen Maine’s economy and its communities’ health, thereby increasing revenue and decreasing an expense that is crippling government agencies and individuals alike – healthcare. Business people who want to make a living related to food, and public and …
Evaluating Recruitment Of American Eel, Anguilla Rostrata, In The Potomac River (Spring 2011), Troy D. Tuckey, Mary C. Fabrizio
Evaluating Recruitment Of American Eel, Anguilla Rostrata, In The Potomac River (Spring 2011), Troy D. Tuckey, Mary C. Fabrizio
Reports
The Atlantic States Marine Fisheries Commission (ASMFC) adopted the Interstate Fishery Management Plan (FMP) for the American eel in November 1999. The FMP focuses on increasing coastal states’ efforts to collect American eel data through both fishery-dependent and fishery-independent studies. Consequently, member jurisdictions agreed to implement an annual survey for young-of-year (YOY) American eels. The survey is intended to “…characterize trends in annual recruitment of the YOY eels over time [to produce a] qualitative appraisal of the annual recruitment of American eel to the U.S. Atlantic Coast” (ASMFC 2000). The development of these surveys began in 2000 with full implementation …
A Five-Year Management Strategy For The Recreational Trout Fishery, Department Of Fisheries Western Australia.
A Five-Year Management Strategy For The Recreational Trout Fishery, Department Of Fisheries Western Australia.
Fisheries management papers
The discussion paper for a five-year management strategy for the recreational trout fishery (Fisheries Management Paper No. 234) was released for public comment in September 2009. It attracted a moderate level of comment with 17 written submissions being received from a variety of stakeholders. The RFFSS considered these submissions and took into account the issues raised in developing the recommendations contained within this paper.
Preliminary Analysis Of The Economic Impact Of The H-2b Worker Program On Virginia’S Economy, Thomas J. Murray
Preliminary Analysis Of The Economic Impact Of The H-2b Worker Program On Virginia’S Economy, Thomas J. Murray
Reports
No abstract provided.
The “Marine Heat Wave” Off Western Australia During The Summer Of 2010/11, Alan Pearce, Gary Jackson, Jenny Moore, Ming Feng, Daniel J. Gaughan
The “Marine Heat Wave” Off Western Australia During The Summer Of 2010/11, Alan Pearce, Gary Jackson, Jenny Moore, Ming Feng, Daniel J. Gaughan
Fisheries research reports
Water temperatures off the south-western coast of Western Australia rose to unprecedented levels during February and March 2011, and this warming event has been termed a “marine heat wave”. While surface temperatures were more than 3°C above the long-term monthly average over an extended area in February 2011, the temperature in some localised areas in coastal waters exceeded the long-term monthly average by 5°C for periods of a day or two in late February/early March
Rumbling In The Benthos: Acoustic Ecology Of The California Mantis Shrimp Hemisquilla Californiensis, E. Staaterman, C. Clark, A. Gallagher, M. Devries, T. Claverie, S. Patek
Rumbling In The Benthos: Acoustic Ecology Of The California Mantis Shrimp Hemisquilla Californiensis, E. Staaterman, C. Clark, A. Gallagher, M. Devries, T. Claverie, S. Patek
Faculty Publications, Biological Sciences
Although much research has focused on acoustic mapping and exploration of the benthic environment, little is known about the acoustic ecology of benthic organisms, particularly benthic crustaceans. Through the use of a coupled audio–video system, a hydrophone array, and an autonomous recording unit, we tested several hypotheses about the field acoustics of a benthic marine crustacean, Hemisquilla californiensis. Living in muddy burrows in southern California, these large mantis shrimp produce low frequency ‘rumbles’ through muscle vibrations. First, we tested whether acoustic signals are similar in the field and in the laboratory, and discovered that field-produced rumbles are more acoustically and …
Interspecies Comparison Of Αii-Spectrin Abundance Between Chinook Salmon And Steelhead, Brielle D. Kemis, Ann L. Miracle, Katie A. Wagner, Christa M. Woodley
Interspecies Comparison Of Αii-Spectrin Abundance Between Chinook Salmon And Steelhead, Brielle D. Kemis, Ann L. Miracle, Katie A. Wagner, Christa M. Woodley
STAR Program Research Presentations
Salmonids, such as Chinook salmon (Oncorhynchus tshawytscha) and steelhead (O. mykiss), are a staple economic, recreational, tribal, and environmental resource, yet many populations are unsustainable. This study was part of a broad scale effort to monitor the impact of downstream migration obstacles on juvenile salmonid health and survival, which is an essential step towards increasing Smolt-to-Adult Return ratios (SARs). The objective of this study was to determine if juvenile Chinook salmon and steelhead exhibit differing quantities of alphaII-Spectrin Breakdown Products (SBDPs) over two consecutive spring migration periods, indicative of neurogenesis rate and/or biological response to head …
The Role Of Crassostrea Virginica Hemocytes In Shell Formation: Ex Vivo Mineral Deposition By Cultured Hemocytes, Emily A. Untener, Douglas C. Hansen, Karolyn Hansen
The Role Of Crassostrea Virginica Hemocytes In Shell Formation: Ex Vivo Mineral Deposition By Cultured Hemocytes, Emily A. Untener, Douglas C. Hansen, Karolyn Hansen
Biology Faculty Publications
Abstract of Technical Paper Presented at the 103rd Annual Meeting National Shellfisheries Association Baltimore, Maryland March 27–31, 2011
Abstracts Of Technical Papers Presented At The 103rd Annual Meeting National Shellfisheries Association Baltimore, Maryland March 27–31, 2011, National Shellfisheries Association
Abstracts Of Technical Papers Presented At The 103rd Annual Meeting National Shellfisheries Association Baltimore, Maryland March 27–31, 2011, National Shellfisheries Association
VIMS Articles
No abstract provided.
Assessment Of The Risks Associated With The Release Of Abalone Sourced From Abalone Hatcheries For Enhancement Or Marine Grow-Out In The Open Ocean Areas Of Wa, Brian J. Jones, Warrick Fletcher
Assessment Of The Risks Associated With The Release Of Abalone Sourced From Abalone Hatcheries For Enhancement Or Marine Grow-Out In The Open Ocean Areas Of Wa, Brian J. Jones, Warrick Fletcher
Fisheries research reports
The virus that causes Abalone Viral Ganglioneuritis (AVG) is considered to be exotic to Western Australia (WA). The known distribution includes Victoria, Tasmania and Taiwan. There are a number of known strains of the virus; Tasmanian strains do not (to date) cause mortalities in wild abalone (but do so in farms and processing facilities). Victorian and Taiwanese strains cause high mortalities in wild abalone. Despite active surveillance, the virus has not been found in NSW, South Australia or Western Australia but there is a low likelihood that WA specific strains may exist undetected.
Pilot Evaluation Of The Efficacy Of Electronic Monitoring On A Demersal Gillnet Vessel As An Alternative To Human Observers, R Evans, Brett Molony
Pilot Evaluation Of The Efficacy Of Electronic Monitoring On A Demersal Gillnet Vessel As An Alternative To Human Observers, R Evans, Brett Molony
Fisheries research reports
A large number of documents exist in peer reviewed and ‘grey’ scientific literature that describe ‘how to’ establish a generic observer program for bycatch. Rather than repeat the many reviews of establishing observer programs, this component of WAMSI project 4.4.1 undertook a pilot trial to test the efficacy of using Electronic Monitoring (EM) in place of on-board human observers to record and identify the catch composition of a commercial demersal gillnet vessel. Approximately 80% of all catch (including target, by-product and bycatch species), including interactions with threatened, endangered and protected species (TEPS) could be identified to the same taxon as …
Draft Management Plan For The Mackerel Managed Fishery., Department Of Fisheries Western Australia.
Draft Management Plan For The Mackerel Managed Fishery., Department Of Fisheries Western Australia.
Fisheries management papers
In accordance with section 64(2) of the Fish Resources Management Act 1994, the Minister for Fisheries has published a Notice in the Government Gazette on 19 August 2011 stating that he intends to determine a Management Plan for the Mackerel Managed Fishery and invites interested persons to comment on the Draft Plan.
2011 Annual Report Estimating Relative Juvenile Abundance Of Ecologically Important Finfish In The Virginia Portion Of Chesapeake Bay, Troy D. Tuckey, Mary C. Fabrizio
2011 Annual Report Estimating Relative Juvenile Abundance Of Ecologically Important Finfish In The Virginia Portion Of Chesapeake Bay, Troy D. Tuckey, Mary C. Fabrizio
Reports
No abstract provided.
Mercury In The Pelagic And Benthic Food Webs Of The Great Salt Lake, Wayne A. Wurtsbaugh, Erin Fleming, Caleb Izdepski, Jodi Gardberg
Mercury In The Pelagic And Benthic Food Webs Of The Great Salt Lake, Wayne A. Wurtsbaugh, Erin Fleming, Caleb Izdepski, Jodi Gardberg
Watershed Sciences Faculty Publications
No abstract provided.
Dietary Metal And Macro-Nutrient Intakes Of Juvenile Lemon Sharks Determined From The Nutritional Composition Of Prey Items, Harri Pettitt-Wade, Steven P. Newman, Kristene T. Parsons, Et Al
Dietary Metal And Macro-Nutrient Intakes Of Juvenile Lemon Sharks Determined From The Nutritional Composition Of Prey Items, Harri Pettitt-Wade, Steven P. Newman, Kristene T. Parsons, Et Al
VIMS Articles
The trace element requirements of sharks are poorly understood and the dietary intake of metals from prey items in wild sharks has not been measured. In this study whole prey of nursery bound juvenile lemon sharks Negaprion brevirostris, from Bimini, Bahamas were analysed for carcass total protein, lipids, carbohydrates, ash content, energy, and elemental composition. Metal analysis included 415 prey items from 18 species (fish: Atherinidae, Belonidae, Gerreidae, Haemulidae, Lutjanidae, Scaridae, Sphyraenidae; decapod crustaceans: Penaeidae, Portunidae). There were some seasonal and location effects (North Sound versus South Bimini shark nurseries), but overall prey metal concentrations were broadly similar to …
Fishes Identification Guide For Chesmmap And Neamap Diet Analysis Studies, Chesapeake Bay Multispecies Monitoring And Assessment Program
Fishes Identification Guide For Chesmmap And Neamap Diet Analysis Studies, Chesapeake Bay Multispecies Monitoring And Assessment Program
Reports
This is a compilation of identification resources for fishes found in stomach samples. By no means is it a complete list of all possible prey types. It is simply what has been found in past ChesMMAP and NEAMAP diet studies.