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Western Rock Lobster Fishery Harvest Strategy And Decision Rules Framework Proposals, Department Of Fisheries

Fisheries Management Papers

No abstract provided.

Age, Growth And Maturation Of Swordtip Squid (Photololigo Edulis) In The Southern East China Sea, Kae-Yih Wang, Kuo-Tien Lee, Cheng-Hsin Liao

Journal of Marine Science and Technology–Taiwan

The reproductive biology, and age and growth of the swordtip squid (Photololigo edulis) in the East China Sea were examined based on the growth ring of statoliths from 1797 specimens during the period of November 2002 to November 2004. The maximum age observed was 261 days in female and 253 days in male, an evidence showing that swordtip squid has a longevity of about 9 months in both sexes. Growth in mantle length (ML) and body weight (BW) in both sexes was best described by the exponential model. There was significantly difference in somatic or statolith growth between the sexes. …

Passive Immunity To White Spot Syndrome Virus (Wssv) In Penaeus Monodon Treated With Monoclonal Antibodies Of The Heterologously Produced Vp28 Viral Envelope Protein, Jyh-Yih Chen, Kumarasamy Anbarasu, Chin-Yu Chen, Ying-Chuan Lee, Fan-Hua Nan, Ching-Ming Kuo

Journal of Marine Science and Technology–Taiwan

White spot syndrome virus (WSSV) is a highly pathogenic and prevalent virus affecting shrimp culture worldwide including Taiwan. In the present study, the viral envelope protein, VP28, gene of the WSSV was cloned into a pET28a expression vector. VP28 was expressed as a protein with a 6-histidine tag in Escherichia coli and purified by a Ni-NTA column. Antiserum was raised against this recombinant VP28 protein in BALB/C mice, and it recognized the VP28 protein in purified virions and recombinant proteins. The antiserum was mixed with arginine (100 ppm), lysine (168 ppm), and phenylalanine (88 ppm), and the titer of the …

Antioxidant And Immune-Stimulating Activities Of Hot-Water Extract From Seaweed Sargassum Hemiphyllum, Pai-An Hwang, Chwen-Herng Wu, Shu-Yun Gau, Shih-Yung Chien, Deng-Fwu Hwang

Journal of Marine Science and Technology–Taiwan

The hot-water extract of seaweed Sargassum hemiphyllum was evaluated antioxidant activity by using four different methods, including DPPH free radicals scavenging activity, Fe+2 chelating activity, superoxide anion radical scavenging activity and reducing power, and the immune-stimulating activity by using HB4C5 cells and J774.1 cells. It was found that the antioxidant activity was increasing in correlating with the concentration below 3.5 mg/ml. The HB4C5 cells showed the maximum relative activities of cell proliferation (174%) and IgM secretion (132%) at 120 µg/ml of hot-water extract. Overheating slightly reduced the immune-stimulating activity of hot-water extract. At 80 µg/ml, J774.1 cells showed the maximum …

The Efficacy Of Sanctuary Areas For The Management Of Fish Stocks And Biodiversity In Wa Waters, James W. Penn, Warrick J. Fletcher

Fisheries Research Reports

Debate concerning the relative benefits of marine protected areas (MPAs) for the management of marine resources can often reflect unrecognized differences in the scope, scale and definitions of the objectives being sought by various Government or community bodies. There can also be different opinions on the level of protection required for an area to be considered an ‘MPA’ and functional definitions for both the biological diversity and ecosystems within these areas are often lacking. This paper seeks to outline the relative efficiency and effectiveness of MPAs, especially no-take sanctuary areas, compared to other strategies currently employed to help achieve the …

The Effect Of Western Rock Lobster Fishing On The Deepwater Ecosystems Of The West Coast Of Western Australia, Lynda Bellchambers Dr

Fisheries Research Reports

Objectives 1. To identify gradients in the density/size distribution of western rock lobster to enable selection of representative areas. 2. To assess the catchability of western rock lobster and its relationship with population abundance and size structure. 3. To identify the relationship between the deep-water habitat and the density/size distribution of western rock lobster to enable a preliminary evaluation of the impact of lobster biomass removal in the deep-water.

Fishing Industry Impact Study : James Price Point Proposed Liquefied Natural Gas Precinct, Department Of Fisheries

Fisheries Occasional Publications

No abstract provided.

Fisheries Occasional Paper No. 77 - Economic Analysis: Fishing Industry Impact Study - Kimberley Lng Project, Econsearch Pty Ltd, Department Of Fisheries Western Australia

Fisheries Occasional Publications

This study, prepared as a part of a broader study for WA fisheries, is concerned with the regional economy of the West Kimberley region and involves an assessment of the impact on the region of a range of fishing industry scenarios associated with development of an LNG processing facility. Specific tasks involved in the study were to prepare the following:

• a standard input-output model for the West Kimberley regional economy for 2007/08 and extend it as a DECON model; and

• estimates of the regional economic and population impact for a range of fishing industry scenarios arising from the …

The Influence Of Partial Timber Harvesting In Riparian Buffers On Macroinvertebrate And Fish Communities In Small Streams In Minnesota, Usa, Christopher J. Chizinski, Bruce Vondracek, Charles R. Blinn, Raymond M. Newman, Dickson M. Atuke, Keith Fredricks, Nathaniel A. Hemstad, Eric Merten, Nicholas Schlesser

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Relatively few evaluations of aquatic macroinvertebrate and fish communities have been published in peer-reviewed literature detailing the effect of varying residual basal area (RBA) after timber harvesting in riparian buffers. Our analysis investigated the effects of partial harvesting within riparian buffers on aquatic macroinvertebrate and fish communities in small streams from two experiments in northern Minnesota northern hardwood-aspen forests. Each experiment evaluated partial harvesting within riparian buffers. In both experiments, benthic macroinvertebrates and fish were collected 1 year prior to harvest and in each of 3 years after harvest. We observed interannual variation for the macroinvertebrate abundance, diversity and taxon …

Twin Screw Extrusion Of Ddgs-Based Aquaculture Feeds, S. Kannadhason, Kurt A. Rosentrater, K. Muthukumapappan, Michael L. Brown

Natural Resource Management Faculty Publications

Six isocaloric (3.65 kcal/g), isonitrogenous (35% dry-basis [db] protein), ingredient blends were prepared with 0, 17.5, 20, 22.5, 25, and 27.5% distiller’s dried grains with solubles (DDGS) and other ingredients (soybean meal, corn, fish meal, whey, soybean oil, vitamin and mineral mix). The blends were moisture balanced to 15% db, then extruded in a twin screw extruder using a 2 mm die at 190 rpm, and a 3 mm die at 348 rpm. Analyses of the extrudates included moisture content, expansion ratio, unit density, bulk density, sinking velocity, color (L*, a*, and b*), water absorption, water solubility, and pellet durability …

Movement Patterns And Artificial Arboreal Cover Use Of Green Salamanders (Aneides Aeneus) In Kanawha County, West Virginia, Sarah Elizabeth Miloski

Theses, Dissertations and Capstones

Global amphibian declines have spawned a need for amphibian monitoring studies using standardized sampling techniques for early detection of population declines. The Green Salamander (Aneides aeneus) is a declining plethodontid salamander (Family: Plethodontidae) associated with rock outcrops and arboreal habitat. The unique habitat requirements of this species make A. aeneus populations particularly susceptible to habitat perturbations. Although primarily associated with rock outcrops, A. aeneus morphology and ecology suggest that A. aeneus may be highly mobile. High mobility has important implications for habitat management, particularly pertaining to land surrounding rock outcrops. However, few studies have addressed plethodontid movement patterns, which are …

The Natural History & Distribution Of Riverine Turtles In West Virginia, Linh Diem Phu

Theses, Dissertations and Capstones

Turtles are unique evolutionary marvels that evolved from amphibians and developed their protective shelled form more than 200 million years ago. In West Virginia, there are 10 native species of turtles, 9 of which are aquatic. Most of these aquatic turtles feed on carrion and dead plant matter, in the water and essentially "clean" our water systems. Turtles are long-lived animals with sensitive life stages that can serve as both long-term and short-term bioindicators of environmental health. With the increase in commercial trade, habitat fragmentation, degradation, destruction, there has been a marked decline in turtle species. The need for well …

Testing The Behavioral Responses Of West Virginia Turtles To Roads And Vehicles, Aaron Clinton Gooley

Theses, Dissertations and Capstones

Road mortality has been identified as a major threat to many turtle species; however, response to passing vehicles, crossing speed, and general behavior while crossing roads has never been investigated in turtles. To investigate these factors, Midland Painted Turtles (Chrysemys picta marginata), Eastern Box Turtles (Terrapene c. carolina), and Stinkpots (Sternotherus odoratus) were collected and placed in a release box on the side of a closed road with an active road running parallel to it 26 m away. Turtles were released via a pulley-operated door facing the road, and their actions videotaped by an …

Long-Term Growth And Monitoring Of The Eastern Hellbender (Cryptobranchus A. Alleganiensis) In Eastern West Virginia, Douglas Charles Horchler

Theses, Dissertations and Capstones

Amphibian declines have been well documented, specifically in the last few decades. The Hellbender, Cryptobranchus alleganiensis, one of North America’s largest salamander species, has suffered dramatic declines throughout much of its range, with estimated declines of up to 77 percent recently documented in some populations. With diurnal and nocturnal searches and mark-recapture techniques, I collected data on the status of Eastern Hellbender populations in Eastern West Virginia. We re-sampled a study site on the West Fork of the Greenbrier River that was first examined in 1998 by Jeff Humphries. Long-term growth and survivorship data were collected and compared to 1998 …

Seasonal Variability In Ichthyoplankton Abundance And Assemblage Composition In The Northern Gulf Of Mexico Off Alabama, Frank J. Hernandez, Jr, Sean P. Powers, William M. Graham

University Faculty and Staff Publications

Multiyear ichthyoplankton surveys used to monitor larval fish seasonality, abundance, and assemblage structure can provide early indicators of regional ecosystem changes. Numerous ichthyoplankton surveys have been conducted in the northern Gulf of Mexico, but few have had high levels of temporal resolution and sample replication. In this study, ichthyoplankton samples were collected monthly (October 2004–October 2006) at a single station off the coast of Alabama as part of a long-term biological survey. Four seasonal periods were identified from observed and historic water temperatures, including a relatively long (June–October) “summer” period (water temperature >26°C). Fish egg abundance, total larval abundance, and …

Assessment Of Selenium And Atrazine Exposure And Effects To Wildlife At The North Platte National Wildlife Refuge, Scottsbluff, Nebraska, Matthew S. Schwarz, Christina D. Lydick

United States Fish and Wildlife Service: Publications

This study evaluated selenium and atrazine exposure and effects to fish and wildlife at North Platte National Wildlife Refuge (Refuge) in Scotts Bluff County, Nebraska. Atrazine was detected in 2 of 54 water samples and at low concentrations that are not of concern. However, concentrations of selenium and strontium exceeded toxicity guidelines in water, sediment, invertebrates, whole-body fish and wood duck eggs. Concentrations of selenium in water at Refuge sites frequently exceeded a 2 μg/L total recoverable threshold for selenium bioaccumulation and were greatest at Stateline Island (9.7 μg/L) and Little Lake Alice (24 μg/L). In sediments, strontium concentrations were …

Codium Fragile Ssp. Fragile (Suringar) Hariot Summary Document, Samantha D. Bridgwood

Fisheries Research Reports

Codium fragile ssp. fragile is a large branching green alga which typically grows between 15 to 60 cm tall but can attain almost 1 m in length and weigh up to 3.5 kg. In wave exposed areas the C. fragile ssp. fragile plants tends to be shorter as they undergo more frequent fragmentation (D’Amours & Scheibling 2007).

A Community-Based Monitoring Program For Introduced Marine Pests, Samantha D. Bridgwood, Justin I. Mcdonald

Fisheries Research Reports

No abstract provided.

The Volunteer Fisheries Liaison Officer (Vflo) Program: An Analysis Of Recreational Fishing Data From 1995 - 2007, Claire B. Smallwood, Adrian Thomson, David Harris, Danielle Johnston

Fisheries Research Reports

The aim of this report was to explore the data collected by VFLOs from 1995 - 2007 in each of the state’s four marine bioregions. During this period, volunteers undertook >2,000 days of activities, the majority of which were educational displays at events such as boat shows and patrols in coastal, marine and estuarine environs. Patrols focused on interviews with recreational anglers to provide information about sustainable fishing and collect data on catch and effort.

Endangered And Threatened Wildlife And Plants; Designation Of Critical Habitat For The Salt Creek Tiger Beetle

United States Fish and Wildlife Service: Publications

We, the U.S. Fish and Wildlife Service (Service/USFWS), designate critical habitat for the Salt Creek tiger beetle (Cicindela nevadica lincolniana) under the Endangered Species Act of 1973, as amended (Act). In total, approximately 1,933 acres (ac) (782 hectares (ha)) located in Lancaster and Saunders Counties, Nebraska, fall within the boundaries of the critical habitat designation.

Fishes Of The Columbia And Snake River Basins In Eastern Washington, Allan T. Scholz, Holly J. Mclellan, Fisheries Research Center, Eastern Washington University

Biology Faculty Publications

"This book was prepared through a grant from the United States Department of the Interior, Bureau of Land Management (BLM)."

Chapter 1 Introduction, Chapter 2 Checklist of Fishes Found in Eastern Washington, Chapter 3 Fish Identification and Classification Aids to Identification of Fishes, Chapter 4 Key to Families of Eastern Washington Fishes, Chapter 5 Family Petromyzontidae: Lampreys, Chapter 6 Family Acipenseridae: Sturgeon, Chapter 7 Family Clupeidae: Herrings, Chapter 8 Family Cyprinidae: Carps and Minnows, Chapter 9 Family Catostomidae: Suckers, Chapter 10 Family Ictaluridae: Bullhead Catfishes, Chapter 11 Family Esocidae: Pikes, Chapter 12 Family Salmonidae: Salmon, Trout, Whitefish, Grayling, Chapter 13 …

Hull Camera: Preliminary Design And Testing Of Its Use For Assessing Biofouling On Small (<12 M) Recreational Vessels, Samantha D. Bridgwood

Fisheries Research Reports

No abstract provided.

Potential Reallocation Mechanisms For The Transfer/And Or Adjustment Of Catch Shares Of Sectors With Application To The Western And South Australian Rock Lobster Fisheries. A Discussion Paper., Chris Reid

Fisheries Management Papers

To allow for a greater understanding of potential allocation adjustment mechanisms and requirements for their implementation, Western Australia’s Department of Fisheries is exploring potential mechanisms with reference to their application in the Western and South Australian rock lobster fisheries. This work is being conducted as part of the Fisheries Research and Development Corporation (FRDC) project 2007/050 Developing Mechanisms for the Transfer and/or Adjustment of Rock Lobster Shares Between Sectors in Western Australia and South Australia. This report documents the Department of Fisheries’ initial exploration and findings in relation to potential inter-sectoral reallocation mechanisms.

Considerations For The Implementation Of Western Rock Lobster Sectoral Allocations., Integrated Fisheries Allocation Advisory Committee

Fisheries Management Papers

This paper discusses the Western rock lobster allocation process.

The Minister for Fisheries has determined that the allocation for sectors in the western rock lobster fishery after reserving one tonne for the customary sector shall be 95 per cent commercial and five per cent recreational.

The notional Sustainable Harvest Level (SHL) for rock lobster is expressed as a range, depending on the status of the stock rather than a specific quantitative limit.

A Natural History Study Of Bufo A. Americanus, The Eastern American Toad, And The Phenology Of Spring Breeders In Southwest West Virginia, Tomi Maria Bergstrom

Theses, Dissertations and Capstones

Natural history traits have not been thoroughly collected and analyzed on the "common hoptoad," Bufo a. americanus (eastern American toad) in West Virginia. Updating natural history information is important to understand the present population status (Jackson, 2001). I chose to have two study sites at opposing physiographic regions to constitute a better understanding of B. a. americanus natural history in WV. The study was initiated in spring 2008 at Beech Fork State Park and Green Bottom Swamp Wildlife Refuge (in Mason and Cabell counties) and in 2009 incorporated Canaan Valley of Tucker County. Ten natural history morphometrics and characters were …

The Index Of Biological Integrity And The Bootstrap: Can Random Sampling Error Affect Stream Impairment Decisions?, Christine L. Dolph, Aleksey Y. Sheshukov, Christopher J. Chizinski, Bruce Vondracek, Bruce N. Wilson

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Multimetric indices, such as the Index of Biological Integrity (IBI), are increasingly used bymanagement agencies to determine whether surface water quality is impaired. However, important questions about the variability of these indices have not been thoroughly addressed in the scientific literature. In this study, we used a bootstrap approach to quantify variability associated with fish IBIs developed for streams in two Minnesota river basins. We further placed this variability into a management context by comparing it to impairment thresholds currently used in water quality determinations for Minnesota streams. We found that 95% confidence intervals ranged as high as 40 points …

The Impact Of Rare Taxa On A Fish Index Of Biotic Integrity, Haibo Wan, Christopher J. Chizinski, Christine L. Dolph, Bruce Vondracek, Bruce N. Wilson

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

The index of biotic integrity (IBI) is a commonly used bioassessment tool that integrates abundance and richness measures to assess water quality. In developing IBIs that are both responsive to human disturbance and resistant to natural variability and sampling error, water managersmust decide how to weigh information about rare and abundant taxa, which in turn requires an understanding of the sensitivity of indices to rare taxa. Herein, we investigated the influence of rare fish taxa (within the lower 5% of rank abundance curves) on IBI metric and total scores for stream sites in two of Minnesota’smajor river basins, the St. …

Environmental And Endogenous Factors Influencing Emigration In Juvenile Anadromous Alewives, Benjamin I. Gahagan, Eric T. Schultz, Katie E. Gherard

EEB Articles

We analyzed juvenile anadromous alewife migration at Bride Lake, a coastal lake in Connecticut, during summer 2006 and found that migration on 24-hour and seasonal timescales was influenced by conditions of the environment and characteristics of the individual. To identify environmental cues of juvenile migration, we continuously video recorded fish at the lake outflow and employed information-theoretic model selection to identify the best predictors of daily migration rate. More than 80% of the approximately 320,000 juveniles that migrated from mid-June to mid-August departed in three pulses lasting one or two days. Pulses of migration were associated with precipitation events, transient …

Einige Bemerkungen Zur Biologie Der Wüstenkröte (Bufo Raddei), Ellen Driechciarz, René Driechciarz

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Some localities in the Taatsyn river in the valley of the Great Lakes in the South of Changaj in Mongolia were found to harbor Bufo raddei. The authors collected data on population density and tadpole holes of the larvae, collected for the first time from this Asian amphibian species.

Absence Of Predation Eliminates Coexistence: Experience From The Fish-Zooplankton Interface, Z. M. Gilwicz, Wayne A. Wurtsbaugh, E. Szymansk

Watershed Sciences Faculty Publications

Examples from fishless aquatic habitats show that competition among zooplankton for resources instigates rapid exclusion of competitively inferior species in the absence of fish predation, and leads to resource monopolization by the superior competitor. This may be a single species or a few clones with large body size: a cladoceran such as Daphnia pulicaria, or a branchiopod such as Artemia franciscana, each building its population to a density far higher than those found in habitats with fish. The example of zooplankton from two different fish-free habitats demonstrates the overpowering force of fish predation by highlighting the consequences of its absence. …