Aquaculture and Fisheries Commons^™

Slides: Oil Shale Water Use: Upsetting The Apple-Cart Of River Habitat, Irrigation And Existing Water Rights?, Bart Miller

Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)

Presenter: Bart Miller, Western Resource Advocates, Boulder, CO

13 slides

Slides: Rapanos And The Courts: Navigating Through The Fog, Jim Murphy

Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)

Presenter: Jim Murphy, Wetlands and Water Resources Counsel, National Wildlife Federation, VT

25 slides

Slides: Integrated Policy, Planning, And Management Of Water Resources, Robert Wilkinson

Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)

Presenter: Robert Wilkinson, Ph.D., Director of the Water Policy Program, Donald Bren School of Environmental Science and Management, University of California-- Santa Barbara

60 slides

Slides: Agricultural Resilience And Urban Growth: A Closer Look, William R. Travis

Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)

Presenter: William R. Travis, Department of Geography, Center for Science & Technology Policy Research, CIRES, University of Colorado at Boulder

30 slides

Fisheries Research Report No. 193 - Investigating Reproductive Biology Issues Relevant To Managing The Western Rock Lobster Broodstock, Roy Melville-Smith, Simon De Lestang, N Beale, D Groth, A Thompson

Fisheries Research Reports

Final FRDC Report – Project 2003/005

Objectives:

1. To investigate the implications of the setose and maximum size rules.

2. To undertake preliminary investigations into the implications of egg diameters being significantly smaller at the Abrolhos Islands than at the coast.

3. To quantify the extent of the breeding grounds, so as to weight the overall egg production index for the stock by the contribution of the management zones.

Increases in efficiency due to modern electronic equipment, improved fishing vessels and knowledge about the grounds and lobster behaviour, have all led to western rock lobster fishers becoming more efficient at …

Finfish Aquaculture In Western Australia. Final Esd Management Report For Marine Finfish Aquaculture., Department Of Fisheries Western Australia.

Fisheries Management Papers

It has been recognized that there are a number of potential impediments to achieving continued growth of this industry. These include the need for increased investment, an expansion in markets and ensuring environmental sustainability. One of the most important however, is meeting the growing expectations of the community that all aquaculture sectors can clearly demonstrate that they are operating within the principles of Ecologically Sustainable Development (ESD). Western Australia’s Department of Fisheries is responsible for the management of aquaculture in the State and is committed to implementing ESD. These principles are contained within the objectives of the Fish Resources Management …

Fisheries Research Report No.157 - The Western Rock Lobster Fishery 2003/2004 And 2004/2005, Simon De Lestang, E H. Barker

Fisheries Research Reports

The 2003/2004 season produced the second highest catch recorded to date (13,684 tonnes), up markedly on the previous season’s catch of 11,415 t. Nominal effort in 2003/2004 (10,180,444 pot lifts) did not vary by nearly as much as did the catch, with total pot lifts declining only slightly (<1%) on the previous season. Season 2004/2005 produced a catch of 12, 236 tonnes, down on the previous season’s catch of 13,684 t. Similar to the catch, total nominal effort in 2004/2005 (9,789,671 pot lifts) also declined fairly substantially (4%) on the previous season. Recreational catches for the above two seasons were also down on their respective previous seasons by 52 and 11% each.

Puerulus settlement coast wide during 2003/2004 was below average, especially towards the southern and northern extremes of the fishery (Port Gregory and Jurien Bay south). This was also the case during the following season (2004/2005), although the poor settlement was more evenly spread across the entire fishery. Catch predictions from these …

Fisheries Research Report No. 174 - Spatial Scales Of Exploitation Among Populatons Of Demersal Scalefish : Implications For Management. Part 2: Stock Structure And Biology Of Two Indicator Species, West Australian Dhufish (Glaucosoma Hebraicum) And Pink Snapper (Pagrus Auratus) In The West Coast Bioregion, Department Of Fisheries, Western Australia

Fisheries Research Reports

Final FRDC Report - Project 2003/052

EDITORS: R. Lenanton, J. StJohn, I. Keay, C. Wakefield, G. Jackson, B. Wise and D. Gaughan

West Australian dhufish is endemic to shelf waters of south-western Western Australia (WA). In contrast, snapper (known as “pink snapper” in WA) has a continuous distribution around the southern coastline of mainland Australia and in New Zealand. Dhufish and snapper are the two most important exploited demersal scalefish species in the West Coast Bioregion (WCB) of WA, which extends from Kalbarri (27°S) to Augusta (35°S). This study examined regional variation in the biology of the two species, their …

Fisheries Occasional Publication No. 65 - A Review Of Management Arrangements For The Recreational Fishery For Demersal Scalefish In The West Coast Bioregion, Peter Neville, Department Of Fisheries, Western Australia

Fisheries Occasional Publications

In December 2008, the Hon. Norman Moore, MLC, Minister for Fisheries, Western Australia appointed two independent experts to review a number of aspects relating to the west coast demersal scalefish recreational fishery; namely to assess separately:

1. the validity of the scientific advice on which management decisions have been made; and
2. options to manage recreational fishing of west coast demersal scalefish.

Fisheries Occasional Publication No. 68 - A Quota Management System For The Western Rock Lobster Fishery, Rock Lobster Industry Advisory Committee (Rliac), Department Of Fisheries, Western Australia

Fisheries Occasional Publications

There has been much debate over the past two decades on the most appropriate long-term management framework for Western Australia’s Western Rock Lobster Fishery. More recently a debate over whether the fishery would be best managed under a Quota Management System (QMS) or the continuation of the current Input Control Management System (ICMS) culminated in an industry vote coordinated by the Western Rock Lobster Council (WRLC) in 2006 . The outcome of this vote resulted in industry support to retain the existing management system based on input controls2 , however, shortly after the vote there was a renewed level of …

Fisheries Occasional Publication No. 69 - An Input Control Management System For The Western Rock Lobster Fishery, Rock Lobster Industry Advisory Committee (Rliac), Department Of Fisheries Western Australia

Fisheries Occasional Publications

The Rock Lobster Industry Advisory Committee (RLIAC), the Hon. Minister for Fisheries and the Department of Fisheries, Western Australia have commenced a process of assessing the options for future management of the Western Rock Lobster Fishery. As part of this assessment, an expert Panel has previously prepared an analysis of an optimal quota management system (QMS) suitable for the fishery. As the next step in the assessment of management options, RLIAC requested that an expert panel also advise them on the design characteristics of an improved input control management system (ICMS) for the fishery and to provide advice on the …

Fish Assemblages In Manistee River Tributaries: Longitudinal Distribution Analysis, Seasonal Variation, And Riparian Improvement Evaluation, Nicholas J. Gressick

Masters Theses

Sedimentation affects both stream physical and biological integrity. Improperly designed stream passage accompanied with sedimentation and altered hydrology can impede fish passage and reduce fish assemblage integrity. The purpose of this study was to: 1) quantify impacts of poorly constructed road stream crossings and eroding banks on fish assemblages, and 2) assess these sites as sediment sources and connectivity breaks on entire fish assemblages and individual fish species. Electrofishing was conducted during spring and fall 2004 and 2005. A total of 29 electrofishing reaches were sampled which included 5 road-stream and streambank restoration sites. Sickle Creek (1st order) had reduced …

Temporal Shifts In Demography And Life History Of An Anadromous Alewife Population In Connecticut, Justin P. Davis, Eric T. Schultz

EEB Articles

Populations of anadromous alewives (Alosa pseudoharengus) are declining throughout much of their range, particularly in southern New England where fishery moratoriums have recently been instituted in three states. The alewife run at Bride Brook, a coastal stream in East Lyme, Connecticut, was studied from 2003-06 to assess shifts in demography and life history. Annual censuses of abundance, along with sampling for size, age, and spawning history structure were conducted. These data were compared to similar data in 1966-67 at this site. Recent alewife runs at Bride Brook featured lower abundance and younger, smaller fish that were less likely to be …

Assesment Of Florida Bass, (Micropterus Floridanus), Stocking In Several Arkansas Lake Largemouth Bass, (M. Salmoides), Populations Using Microsatellite Analysis, Ryan Martin Allen

Student Theses and Dissertations

Arkansas largemouth bass populations have been stocked with the exotic Florida bass for several decades to enhance lake fisheries. This study sampled 1,474 bass from eight Arkansas lakes to determine the success of introducing Florida bass alleles and hybridization events between bass species. Microsatellite data was then compared to historical allozyme data. Additionally, relationships were identified between Florida bass allele frequencies and lake characteristics as well as phenotypes and condition and length at age. A wide range of Florida bass allele frequencies were identified between lakes (10 - 70%), with the most highly correlated variable for successful stocking being reservoir …

Fort Richardson Ordnance Detonations And The Harbor Porpoise: A Case Study In Marine Mammal Bioacoustics, Heather Heenehan

Honors Scholar Theses

Hearing is extremely important for cetaceans because it is their “principal sense” (Weilgart, 2007) thus the harbor porpoise and other marine animals are highly dependent on sound for survival. This is why we should care about the impact of noise on animals like the harbor porpoise. Since sound travels so well in water, an explosion, sonar, boat noise, etc. can affect a very large area and thus many different species of marine mammals. Although military actions such as low frequency sonar have made recent news, noise has been affecting cetaceans, especially beaked whales, since at least 1991 (Weilgart, 2007).

This …

Natural Ice-Nucleating Bacteria Increase The Freezing Tolerance Of The Intertidal Bivalve Geukensia Demissa, Alexander M. Mccorkle

Biology Honors Papers

Instead of avoiding freezing, freeze tolerant invertebrates actively initiate controlled ice nucleation at relatively high sub-zero temperatures in extracellular compartments. Most produce proteinaceous ice-nucleators in their hemolymph, however the intertidal bivalve mollusc Geukensia demissa lacks this ability. Instead it utilizes at least one strain of ice-nucleation active (INA) bacteria, Pseudomonas fulva, present in seawater, to induce crystallization in the pallial fluid that fills its mantle cavity. In this study, two additional INA bacteria strains were isolated from the palial fluid of Geukensia demissa: Psychrobacter sp. and Shewanella sp. The ice-nucleation activity of both strains was characterized and Psychrobacter was found …

Fisheries Research Report No. 191 - Maximising Survival Of Released Undersize West Coast Reef Fish, Rodney C J Lenanton, Jill St John, Brent S. Wise, Ian S. Keay, D J. Gaughan

Fisheries Research Reports

Final FRDC Report – Project 2000/194

In Australia, most fishery managers regulate the catch of recreational fishes using size and bag limits. The effectiveness of these regulations depends on the fish surviving capture and then release back into the water. Effective management of fishing using size or bag limits therefore requires an understanding of the rates of mortality of released fish and what factors are causing mortality so that these might be alleviated. The rates and likely causes of mortality of released WA dhufish (Glaucosoma hebraicum) and snapper (Pagrus auratus), breaksea cod (Epinephelides armatus) and baldchin groper (Choerodon rubescens) off …

Fisheries Research Report No. 184 - Macroscopic And Microscopic Description Of Snapper (Pagrus Auratus) Gonads From Shark Bay, Western Australia, Michael C. Mackie, Gary Jackson, Nadia E. Tapp, Jeffrey V. Norriss, Adrian Thomson

Fisheries Research Reports

Since 1997, research on snapper (Pagrus auratus, Sparidae) in the inner gulfs of Shark Bay has focussed on providing biological information required for the management of the regionally important recreational fishery. A major component of this research has been a comprehensive investigation of snapper reproductive biology to determine size and age at maturity, the timing of the spawning season and to estimate batch fecundity. This research has necessitated a review of the macroscopic staging system used for P. auratus in Western Australian waters and the development of a more detailed microscopic system to allow accurate analyses of histological material. Based …

Fisheries Research Report No. 192 - Determination Of A Cost Effective Methodology For Ongoing Age Monitoring Needed For The Management Of Scalefish Fisheries In Western Australia, Montgomery Craine, Ben Rome, Peter Stephenson, Brent S. Wise, D J. Gaughan, R Lenanton, Richard A. Steckis

Fisheries Research Reports

Final FRDC Report – Project 2004/042

Objectives

1. Determine for the 20 major WA scalefish species (4 - 5 in each bioregion) the relative accuracy of structures used to estimate age (e.g. Sectioned/whole otoliths, lengths, otolith weight, other otolith dimensions or some combination of these).

2. For each stock, examine the relative impact on the calculated age-compositions and their effect on model outputs and conclusions from varying (i) the method of ageing used (only where this is possible from available data) (ii) the number of individuals used in the samples (iii) the spatial distribution of the samples used (iv) if …

Social And Economic Evaluation Methods For Fisheries: A Review Of The Literature - Fisheries Research Contract Report No. 21, 2009, Simon Vieira, Jacki Schirmer, Edwina Loxton

Fisheries Research Contract Reports

The Department of Fisheries Western Australia is responsible for managing Western Australia’s fishery resources in a way that is consistent with the principles of Ecologically Sustainable Development (ESD). Implementing these principles in a practical manner for fisheries has involved the development of a new management approach that is termed Ecosystems Based Fisheries Management (EBFM). This process incorporates social and economic factors into the management process along with biological and environmental considerations, at both the Fisheries and regional levels.

To date, minimal work has been done to address social and economic factors in accordance with EBFM. This is primarily due to …

Maintaining Population Persistence In The Face Of An Extremely Altered Hydrograph: Implications For Three Sensitive Fishes In A Tributary Of The Green River, Utah, Jared L. Bottcher

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The ability of an organism to disperse to suitable habitats, especially in modified and fragmented systems, determines individual fitness and overall population viability. The bluehead sucker (Catostomus discobolus), flannelmouth sucker (Catostomus latipinnis), and roundtail chub (Gila robusta) are three species native to the upper Colorado River Basin that now occupy only 50% of their historic range. Despite these distributional declines, populations of all three species are present in the San Rafael River, a highly regulated tributary of the Green River, Utah, providing an opportunity for research. Our goal was to determine the timing and …

The Effects Of Climate Variability On The Structure Of The Phytoplankton Community In Tumaco Bay, Colombia, Ingrid Garcia-Hansen Honkala

Dissertations

Spatiotemporal variability in the diatom and dinoflagellate community structure and chlorophyll a (chl a) concentrations in Tumaco Bay during the 1993-2005 period was related clearly to seasonal and interannual variability in environmental conditions due to the migration of the Inter-tropical Convergence Zone (ITZC) and the influence of El Nino Southern Oscillation (ENSO) events. A total of 134 species of diatoms that belong to 57 genera, and 78 species of dinoflagellates that belong to 25 genera were identified during the survey. The diatom community was the dominant group in the waters of the bay, being the most abundant with the greatest …

The Effects Of Dolphin Education Programs On Visitors' Conservation-Related Knowledge, Attitude And Behavior, Lance Joseph Miller

Dissertations

Zoological institutions typically exhibit dolphins in educational programs such as dolphin shows and interaction programs. The goal of these programs is to entertain visitors while increasing their conservation-related knowledge, attitude and behavior towards dolphins and the marine environment. The purpose of the current study was to examine dolphin shows and interaction programs in terms of their effectiveness in meeting these goals. A multi-institutional study was conducted at six different facilities throughout the United States. A repeated measures design was used to examine the knowledge, attitude and behavior of visitors before, immediately after and three months following participation in dolphin shows …

Landscape Limnology: Nutrient Fluxes & Biotic Stability In Complex Mountain Watersheds, Wayne A. Wurtsbaugh, Michelle Kang, Dave M. Epstein

Watershed Sciences Faculty Publications

No abstract provided.

Fisheries Research Report No. 189 - Results Of A 2007 Survey Of The Swan River Region For Four Introduced Marine Species, Justin I. Mcdonald, Fred E. Wells

Fisheries Research Reports

A survey of the Swan River region for four non-indigenous marine species was conducted in 2007: the European shore crab Carcinus maenas, the Asian bag mussel Musculista senhousia, the European fan worm Sabella spallanzanii, and the scallop Scaeochlamys livida. The first three of these species are global in their distribution and on the ‘top-ten world’s worst invaders listing; the last species is introduced from the eastern states of Australia.

In this survey divers on SCUBA examined 43 sites for each of the listed species. Despite previous records of Carcinus maenas and Musculista senhousia in this region …

Sponges On Chumbe Island, Emily Marshall

Independent Study Project (ISP) Collection

The sponge population of Chumbe Island, off the western coast of Unguja Island was studied. Opportunistic observation, underwater photography, and sponge collection on the eastern side of the island was conducted. The sponge samples collected where then taxonomically analyzed in the lab. This is study will contribute to the limited amount of information known about sponge taxonomy and prevalence in the Western Indian Ocean region. It will increase the knowledge about the diversity of sponges in this region. The information collected from this experiment was compiled into a booklet that will be available to the tourists as well as the …

Integrated Fisheries Management. Allocation Report Roe's Abalone Resource Perth Metropolitan Region., Integrated Fisheries Allocation Advisory Committee

Fisheries Management Papers

The introduction of Integrated Fisheries Management (IFM) is a recent development in the management of fisheries in Western Australia. IFM is an initiative aimed at addressing the issue of how fish resources in Western Australia can be best shared between competing users within the broad context of “Ecologically Sustainable Development”, or ESD.

Fisheries Occasional Publication No. 67 - Review Of Fisheries Research Report (177), Aldo Steffe, Department Of Fisheries Western Australia

Fisheries Occasional Publications

To provide a review of the Research Report (177) on recreational boat-based fishing in the West Coast Bioregion during 2005/06 including: • The appropriateness of the basic creel survey design used for deriving estimates of catch, effort and catch rates for this type of fishery. • An assessment of whether the assumptions, scope and omissions were suitably identified. • The robustness of the catch estimates, and any conclusions that were included in the report, and total and seasonal recreational catch estimates. These initial terms of reference were expanded to include some discussion on issues raised by (a) the WA Fisheries …

Fisheries Occasional Publication No. 66 - Scientific Review Of The West Coast Demersal Scalefish Fishery, Western Australia, Michael O'Neill, Department Of Fisheries Western Australia

Fisheries Occasional Publications

In December 2008 the Hon Norman Moore MLC, Minister for Fisheries Western Australia appointed two independent experts to assess separately 1) the validity of scientific advice to management and 2) options to manage recreational fishing of west coast demersal scalefish. The following review (1) assesses the validity of research outlining the status of baldchin groper (Choerodon rubescens), West Australian dhufish (Glaucosoma hebraicum) and snapper (Pagrus auratus) as described in the terms of reference. In addition to the terms of reference, an opinion was requested regarding the current appropriateness of the research advice (Wise et al 2007) and the resulting management …

Final Report -- Missouri River Fish And Wildlife Mitigation Program: Fish Community Monitoring And Habitat Assessment Of Off-Channel Mitigation Sites, Van Sterner, Royce Bowman, Brandon L. Eder, Sabrina Negus, Gerald Mestl, Kasey Whiteman, Darrick Garner, Vince Travnichek, Joshua Schloesser, Joseph Mcmullen, Tracy Hill

Nebraska Game and Parks Commission: Staff Research Publications

The Missouri River has been developed for flood control, commercial navigation, irrigation, fish and wildlife conservation, municipal water supply, water quality control and hydropower production through a series of congressional acts. However, prior to development, the lower Missouri River was characterized by a highly sinuous to braided channel with abundant log jams, sand bars, secondary channels and cut-off channels. Construction of the Bank Stabilization and Navigation Project (BSNP) converted the lower Missouri River into a narrow, self scouring channel. The active channel downstream of Sioux City, Iowa was as wide as 1.8 km before river modification, but is now confined …