Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- University of Nebraska - Lincoln (222)
- Department of Primary Industries and Regional Development, Western Australia (202)
- University of Colorado Law School (173)
- Bemidji State University (34)
- University of Nevada, Las Vegas (22)
-
- Old Dominion University (16)
- University of North Florida (13)
- University of South Alabama (11)
- South Dakota State University (10)
- Cal Poly Humboldt (9)
- SIT Graduate Institute/SIT Study Abroad (7)
- Central Washington University (5)
- City University of New York (CUNY) (3)
- Coastal Carolina University (3)
- University of Massachusetts Boston (3)
- Connecticut College (2)
- Louisiana State University (2)
- University of Arkansas, Fayetteville (2)
- University of Rhode Island (2)
- WellBeing International (2)
- Arkansas Tech University (1)
- Bowling Green State University (1)
- Center for the Blue Economy (1)
- Georgia Southern University (1)
- LSU New Orleans (1)
- Michigan Technological University (1)
- Mississippi State University (1)
- Missouri State University (1)
- Murray State University (1)
- Portland State University (1)
- Keyword
-
- Western Australia (122)
- Colorado (59)
- West (53)
- California (48)
- Water law (45)
-
- Western water law (45)
- Climate change (37)
- Fisheries (35)
- Conservation (34)
- Experiments (31)
- Fishery management (31)
- Water policy (30)
- Water quality (30)
- Water resource management (30)
- Wyoming (30)
- Aquatic ecology (29)
- Arizona (29)
- Limnology (29)
- New Mexico (29)
- Water resources management (29)
- Fishery (28)
- Recreational fishing (27)
- Water (26)
- Drought (25)
- Freshwater biology (25)
- Montana (25)
- United States (25)
- Endangered Species Act (24)
- Colorado River (22)
- ESA (22)
- Publication Year
- Publication
-
- Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications (164)
- Fisheries Research Reports (108)
- Fisheries Management Papers (44)
- Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts (37)
- New Sources of Water for Energy Development and Growth: Interbasin Transfers: A Short Course (Summer Conference, June 7-10) (29)
-
- Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5) (26)
- Journal of Earth and Life Science (23)
- Shifting Baselines and New Meridians: Water, Resources, Landscapes, and the Transformation of the American West (Summer Conference, June 4-6) (23)
- The Public Lands During the Remainder of the 20th Century: Planning, Law, and Policy in the Federal Land Agencies (Summer Conference, June 8-10) (22)
- Publications (WR) (20)
- WA Marine Stewardship Council report series (18)
- Western Water Law in Transition (Summer Conference, June 3-5) (18)
- Innovations in Managing Western Water: New Approaches for Balancing Environmental, Social and Economic Outcomes (Martz Summer Conference, June 11-12) (17)
- Biodiversity Protection: Implementation and Reform of the Endangered Species Act (Summer Conference, June 9-12) (16)
- Biological Sciences Faculty Publications (13)
- Fisheries Research Articles (13)
- State of the River Report (13)
- School of Natural Resources: Dissertations, Theses, and Student Research (12)
- Biology Graduate Theses (11)
- University Faculty and Staff Publications (11)
- Electronic Theses and Dissertations (10)
- Fisheries Occasional Publications (9)
- Coping with Water Scarcity in River Basins Worldwide: Lessons Learned from Shared Experiences (Martz Summer Conference, June 9-10) (8)
- Cal Poly Humboldt theses and projects (7)
- Boundaries and Water: Allocation and Use of a Shared Resource (Summer Conference, June 5-7) (6)
- Independent Study Project (ISP) Collection (6)
- All Master's Theses (4)
- Fisheries Research Contract Reports (4)
- Indigenous Water Justice Symposium (June 6) (4)
- School of Natural Resources: Faculty Publications (4)
- Publication Type
Articles 481 - 510 of 759
Full-Text Articles in Aquaculture and Fisheries
Proposals For Community Discussion On The Future Management Of Pink Snapper Fishing In Cockburn Sound And Surrounding Waters, Department Of Fisheries
Proposals For Community Discussion On The Future Management Of Pink Snapper Fishing In Cockburn Sound And Surrounding Waters, Department Of Fisheries
Fisheries Management Papers
This discussion paper outlines the current issues associated with the management of the metropolitan pink snapper fishery along with some options for future management.
Plan Of Management For The Point Quobba Fish Habitat Protection Area, Department Of Fisheries
Plan Of Management For The Point Quobba Fish Habitat Protection Area, Department Of Fisheries
Fisheries Management Papers
Point Quobba is a popular site for locals and tourists for beach activities, fishing and snorkelling, and as a place for children to learn to swim and gain an awareness of the marine environment. The marine life and habitats of the area are of considerable scientific and recreational interest and are highly valued in the local community. However, the area is at risk from a high level of use and from conflict between users - which is due to the area’s proximity to popular tourism sites, the boat ramp, camping and settlement areas.
Proposals For Community Discussion - A Quality Future For Recreational Fishing In The South Coast. A Five-Year Strategy For Managing The Recreational Component Of The Catch., South Coast Recreational Fishing Working Group.
Proposals For Community Discussion - A Quality Future For Recreational Fishing In The South Coast. A Five-Year Strategy For Managing The Recreational Component Of The Catch., South Coast Recreational Fishing Working Group.
Fisheries Management Papers
With a growing population and advances in technology, fishing pressure will continue to grow and anglers will become more efficient at targeting fish, particularly offshore demersal species such as blue groper, dhufish, red snapper, breaksea cod and queen snapper. There is also a clear need for recreational fisheries management to complement the existing management arrangements for the charter industry, and provide the necessary framework for recreational fishing to be incorporated into an integrated management framework with other fishing sectors.
Proposals For Community Discussion : A Quality Future For Recreational Fishing In The Pilbara/Kimberley : A Five-Year Draft Strategy For Managing The Recreational Component Of The Catch, Pilbara/Kimberley Recreational Fishing Working Group.
Proposals For Community Discussion : A Quality Future For Recreational Fishing In The Pilbara/Kimberley : A Five-Year Draft Strategy For Managing The Recreational Component Of The Catch, Pilbara/Kimberley Recreational Fishing Working Group.
Fisheries Management Papers
With a growing population and advances in technology, fishing pressure will continue to grow and anglers will become more efficient at targeting fish - particularly offshore demersal species, such as tropical snappers and emperors. There is also a clear need for recreational fisheries management to complement the existing management arrangements for the charter industry, and provide the necessary framework for recreational fishing to be incorporated into an integrated management framework with other fishing sectors.
Fisheries Management Paper No.180 - Future Management Arrangements For Western Australia's Temperate Shark Fisheries., Jane Borg, R. Mcauley
Fisheries Management Paper No.180 - Future Management Arrangements For Western Australia's Temperate Shark Fisheries., Jane Borg, R. Mcauley
Fisheries Management Papers
This paper provides a summary of the attributes of these temperate shark fisheries, and sets out the proposed objectives and the measures available to achieve them.
In summary, primary measures are aimed at the sustainability of dusky and whiskery sharks, with dusky sharks being of greater concern as their status is more critical. The final decision on management of these fisheries cannot compromise sustainability, not only because of the Department’s obligations under the Fish Resources Management Act, 1994, but also:
• national and international obligations associated with ecologically sustainable development;
• export accreditation under the Environmental Protection and Biodiversity Conservation …
Draft Aquaculure Plan For Exmouth Gulf, Department Of Fisheries
Draft Aquaculure Plan For Exmouth Gulf, Department Of Fisheries
Fisheries Management Papers
The Plan’s objective is to provide a sound strategy for developing future aquaculture activities in Exmouth Gulf, while at the same time conserving the unique environment of Exmouth Gulf for present and future generations, and minimising conflict with existing and future users of Exmouth Gulf.
Fisheries Occasional Publication No. 6 - Anglers Guide To Assessing Reproductive Stage In Fish, Kim Smith, Mike Mackie, Department Of Fisheries Western Australia
Fisheries Occasional Publication No. 6 - Anglers Guide To Assessing Reproductive Stage In Fish, Kim Smith, Mike Mackie, Department Of Fisheries Western Australia
Fisheries Occasional Publications
What is a gonad?
"Gonad" is a general term for a reproductive organ, and is used to describe both ovaries and testes. In male and female fish, the gonad is an elongated organ lying along the upper wall of the gut cavity (i.e. running immediately under the vertebral column). The gonad gonad has 2 lobes. Both lobes are attached to the body near the anus and extend forward inside the gut cavity.
As fish gonads ripen, they become larger, heavier and change colour. Immature and undeveloped adult gonads are very small, strap-like in shape, pinkish in colour and translucent (i.e. …
Draft Plan Of Management For The Kalbarri Blue Holes Fish Habitat Protection Area., Department Of Fisheries
Draft Plan Of Management For The Kalbarri Blue Holes Fish Habitat Protection Area., Department Of Fisheries
Fisheries Management Papers
The overall objective of the proposed FHPA and the associated Plan of Management is to conserve and protect a portion of the near-shore reef ecosystem in the vicinity of the Blue Holes, and to manage activities within the area, to promote the observation and protection of fish living within the area. Strong community commitment has already been demonstrated, and this is crucial in the implementation of the proposed management plan
Fish Stock And Fishery Enhancement In Western Australia. A Summary Report., Department Of Fisheries
Fish Stock And Fishery Enhancement In Western Australia. A Summary Report., Department Of Fisheries
Fisheries Management Papers
This summary paper provides an overview of the key proposals set out in the full policy discussion paper, Fisheries Management Paper No 175. It does not discuss the theoretical background for the framework presented and therefore readers interested in such discussion are directed to Fisheries Management Paper No 175.
Both papers have been prepared to encourage public involvement in the development of policy for stock enhancement within Western Australian waters. Stock enhancement can involve an existing fishery or creation of a new fishery through the translocation of fish. It affects both public and private waters.
Inventory Of The Land Conservation Values Of The Houtman Abrolhos Islands., Department Of Fisheries. Western Australia
Inventory Of The Land Conservation Values Of The Houtman Abrolhos Islands., Department Of Fisheries. Western Australia
Fisheries Management Papers
There is growing pressure for increased development on the Houtman Abrolhos Islands (Abrolhos Islands). Much work on the natural, historical and cultural values of the islands has been undertaken. This document is a review of this work, which provides an overview of the conservation values of the islands, and should prove useful in considering the selection, design and evaluation of proposed developments at the Abrolhos Islands. Based on existing information, the purpose of the Review of the Land Conservation Values of the Houtman Abrolhos Islands is to: • identify and map areas of conservation value (natural, historical and cultural); and …
Draft Plan Of Management For The Proposed Point Quobba Fish Habitat Protection Area., Department Of Fisheries
Draft Plan Of Management For The Proposed Point Quobba Fish Habitat Protection Area., Department Of Fisheries
Fisheries Management Papers
Point Quobba is a popular site for locals and tourists for beach activities, fishing and snorkelling, and as a place for children to learn to swim and gain an awareness of the marine environment. The marine life and habitats of the area are of considerable scientific and recreational interest and are highly valued in the local community. However, they are at risk from their high level of use and from conflict between users due to their proximity to popular tourism, boat ramp, camping and settlement areas on-shore.
Management Of The Proposed Geographe Bay Blue Swimmer And Sand Crab Managed Fishery., Jane Borg
Management Of The Proposed Geographe Bay Blue Swimmer And Sand Crab Managed Fishery., Jane Borg
Fisheries Management Papers
This discussion paper has been prepared following an extensive consultation process, to encourage continued public involvement in the development of management arrangements for the blue swimmer and sand crab resources of Geographe Bay. These proposed management arrangements affect both commercial and recreational fishers.
Plan Of Management For The Miaboolya Beach Fish Habitat Protection Area, Shane Alymore, Sarah Anderson
Plan Of Management For The Miaboolya Beach Fish Habitat Protection Area, Shane Alymore, Sarah Anderson
Fisheries Management Papers
The aim of this management plan is to protect and rehabilitate the aquatic habitat of Miaboolya Beach, the associated mangrove ecosystem, and involve the community in their management. By setting the area aside as a FHPA, the Department of Fisheries has established a framework to promote and actively conserve all the habitats within the Miaboolya system, as described in Section 3 of this document.
Fisheries Research Contract Report No. 2 - Towards An Assessment Of Natural And Human Use Impacts On The Marine Environment Of The Abrolhos Islands (Phase 1 : Data Consolidation And Scoping - Final Report For Frdc Project 2000/1 66), C. F. Chubb, K. Nardi
Fisheries Research Contract Reports
This project has drawn together existing research data relating to natural and human impacts on the Abrolhos Islands marine habitats. It has surveyed current uses of these habitats and placed anthropogenic impacts within the context of natural perturbations. Through public forum presentation and debate, this work has allowed real issues, not perceptions, to surface and be addressed properly. This was achieved by defining a strategic programme of research through a scientific workshop process involving all community stakeholders. A two volume Fisheries Research Report (WA) summarizes current knowledge and details the workshop proceedings and strategic research plan.
Terrestrial Natural Communities Of Nebraska (Version Iii - June 30, 2005), Gerry Steinauer, Steven B. Rolfsmeier
Terrestrial Natural Communities Of Nebraska (Version Iii - June 30, 2005), Gerry Steinauer, Steven B. Rolfsmeier
Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts
For more than a decade, The Nature Conservancy (TNC) and state natural heritage programs, including the Nebraska Natural Heritage Program (NNHP), have used a “coarse filter/fine filter” approach to preserving biological diversity (The Nature Conservancy, 1994). This approach involves identification and protection of natural communities (coarse filter) as well as rare species (fine filter). Identifying and protecting representative examples of natural communities ensures conservation of most species, biotic interactions and ecological processes. Those species that “fall through” the community filters are generally the rare species. Identification and protection of viable occurrences of rare species serves as the fine filter for …
Aboriginal Fishing Strategy : Recognising The Past, Fishing For The Future. Draft Report To The Minister For Agriculture, Forestry And Fisheries, Department Of Fisheries., Aboriginal And Torres Strait Islander Commission., Fisheries Research And Development Corporation., Department Of Indigenous Affairs.
Aboriginal Fishing Strategy : Recognising The Past, Fishing For The Future. Draft Report To The Minister For Agriculture, Forestry And Fisheries, Department Of Fisheries., Aboriginal And Torres Strait Islander Commission., Fisheries Research And Development Corporation., Department Of Indigenous Affairs.
Fisheries Management Papers
The draft Aboriginal Fishing Strategy report is a comprehensive effort to recognise the interests of Aboriginal people in the protection and use of fish resources in Western Australia. It is perhaps the most comprehensive report of its kind in Australia. As this Government moves toward a more integrated approach to the management of fish resources this report is timely, and represents an opportunity to ensure Aboriginal fishing interests are given appropriate recognition in a more holistic approach to ensuring fish stocks are sustained for future generations.
Identifying Nursery Areas Used By Inner Bay And Oceanic Pink Snapper ( Pagrus Auratus) To The Effect Of Prawn Trawling On Inner Bay Snapper Stocks - Final Report For Frdc Project 2001/061, D. J. Gaughan, Michael J. Moran, Melinda M. Ranaldi, John R. Watling
Identifying Nursery Areas Used By Inner Bay And Oceanic Pink Snapper ( Pagrus Auratus) To The Effect Of Prawn Trawling On Inner Bay Snapper Stocks - Final Report For Frdc Project 2001/061, D. J. Gaughan, Michael J. Moran, Melinda M. Ranaldi, John R. Watling
Fisheries Research Contract Reports
Final Report for FRDC Project 2001/061
Pink snapper (Pagrus auratus) is the main commercial and recreational finfish (Kailola et al., 1993) in the Shark Bay region. Pink snapper are distributed along much of the temperate and tropical coasts of Western Australia from east of Esperance on the south coast to north of Shark Bay on the west (Paulin 1990). Previous research using genetics (Johnson et al. 1986), tagging (Moran et al. 2004), and otolith microchemistry (Edmonds et al., 1989, 1999) have shown that pink snapper from the innermost parts of Shark Bay do not mix with the ocean fish
Juvenile …
A Guide To Prairie And Wetland Restoration In Eastern Nebraska, Gerry Steinauer, Bill Whitney, Krista Adams, Mike Bullerman, Chris Helzer
A Guide To Prairie And Wetland Restoration In Eastern Nebraska, Gerry Steinauer, Bill Whitney, Krista Adams, Mike Bullerman, Chris Helzer
Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts
This publication documents the restoration methods originally developed by Bill Whitney and later refined by himself and other ecologists from TNC, PRCT, NGPC and USFWS working in eastern Nebraska. Restoration of the following plant community types is covered in this document: tallgrass prairie, mixed-grass prairie, sand prairie, freshwater wet meadow and marsh, Rainwater Basin wet meadow and marsh, and saline wet meadow and marsh.
The methods we use are generally affordable and not complicated. To quickly summarize, we handpick and machine harvest seed, do little seed cleaning and broadcast plant with a fertilizer spreader. We do not mow annual weeds …
2003 Survey Of Priority Natural Communities In Jefferson County, Nebraska, Robert F. Steinauer
2003 Survey Of Priority Natural Communities In Jefferson County, Nebraska, Robert F. Steinauer
Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts
This survey was undertaken to update information on native plant communities and wildlife habitats in Nebraska to facilitate the development of the Nebraska Game and Parks Commission’s (NGPC) Comprehensive Wildlife Plan. The specific intent of the project was to identify and map all large blocks of privately owned native plant communities within the survey area. In 2003, the surveys focused on eastern Nebraska, specifically deciduous forest communities along the Missouri River, tallgrass prairies of southeastern Nebraska (Pawnee, Gage, Jefferson, and eastern Thayer counties), and loess mixed-grass prairies in central Nebraska. A brief survey of the Elkhorn River valley in Madison …
Review Of Recreational Take Of Coral In Western Australia. A Discussion Paper., Department Of Fisheries
Review Of Recreational Take Of Coral In Western Australia. A Discussion Paper., Department Of Fisheries
Fisheries Management Papers
This discussion paper has been prepared by the Department of Fisheries (Western Australia) to address the issue of recreational collection of coral in coastal waters of Western Australia. The paper describes: • popular coral locations in WA; • management issues associated with the recreational collection of corals; • management objectives and strategies as possible options to address the issue of recreational collection of corals; and • seeks public input on the proposed management objectives and strategies.
Fisheries Occasional Publication No. 2 - Scientific Workshop On The Margaret River Marron, Brett Molony
Fisheries Occasional Publication No. 2 - Scientific Workshop On The Margaret River Marron, Brett Molony
Fisheries Occasional Publications
Purpose of the Workshop
To gather together and review the scientific evidence around genetic and sustainability issues necessary for the management of Margaret River Marron (MRM)
The outcomes of the day will be to provide scientific advice, options and priorities to the relevant Programs within the Department of Fisheries to promote the sustainability of marron within MR.
* Introduction to, and comparison of, genetic techniques available to researchers. Presenter - Phil Vercoe
* What do we know about the genetic diversity of marron and other Cherax? Presenter - Chris Austin
* Morphology and Hybrids Presenter - Craig Lawrence
* The …
Comparison Of Water Quality, Zooplankton Density, And Cover In Razorback Sucker (Xyrauchen Texanus [Abbott]) Spawning Areas Of Lake Mead And Lake Mohave, Michael E. Golden, Paul B. Holden, Southern Nevada Water Authority
Comparison Of Water Quality, Zooplankton Density, And Cover In Razorback Sucker (Xyrauchen Texanus [Abbott]) Spawning Areas Of Lake Mead And Lake Mohave, Michael E. Golden, Paul B. Holden, Southern Nevada Water Authority
Publications (WR)
Las Vegas Bay and Echo Bay in Lake Mead have small, self-sustaining populations of razorback sucker (Xyrauchen texanus [Abbot]). Increased productivity and cover have been hypothesized as reasons for successful recruitment of razorback sucker in Lake Mead. Conversely, reproduction has been documented on Lake Mohave, another lower Colorado River reservoir, but no recruitment has been observed. In 2000, BIO-WEST, Inc. was contracted by the Southern Nevada Water Authority to design and implement a study to examine nutrient levels, zooplankton density, and cover in areas with and without razorback sucker recruitment success. We sampled Echo Bay, Las Vegas Bay, and …
Discussion Paper : The Translocation Of Brown Trout (Salmo Trutta) And Rainbow Trout (Oncorhynchus Mykiss) Into And Within Western Australia., Western Australian Fisheries
Discussion Paper : The Translocation Of Brown Trout (Salmo Trutta) And Rainbow Trout (Oncorhynchus Mykiss) Into And Within Western Australia., Western Australian Fisheries
Fisheries Management Papers
This discussion paper has been prepared to assist in the assessment of the possible impact of the translocation of brown trout (Salmo trutta) and rainbow trout (Oncorhynchus mykiss), into and within Western Australia, for the purposes of recreational stock enhancement in public waters, non-commercial aquaculture on private properties and commercial aquaculture. In assessing the translocation of any aquatic species, economic and social benefits must be balanced with biological and environmental risks.
Fisheries Envrionmental Management Plan For The Gascoyne Region. Draft Report., Dept. Of Fisheries
Fisheries Envrionmental Management Plan For The Gascoyne Region. Draft Report., Dept. Of Fisheries
Fisheries Management Papers
This draft document for the Gascoyne Region is the first in the series of Environmental Management Plans. . It complements the recently released Fisheries Environmental Management Review of the Gascoyne Region (2000).
The Introduction And Aquaculture Of Non-Endemic Species In Western Australia: The ‘Rotund’ Yabby Cherax Rotundus And The All-Male Hybrid Yabby. A Discussion Paper., Department Of Fisheries
The Introduction And Aquaculture Of Non-Endemic Species In Western Australia: The ‘Rotund’ Yabby Cherax Rotundus And The All-Male Hybrid Yabby. A Discussion Paper., Department Of Fisheries
Fisheries Management Papers
This discussion paper has been prepared to provide information to assist in the assessment of the possible impact of the translocation of Cherax rotundus and allmale hybrid yabbies within Western Australia, for the purposes of commercial aquaculture on private properties. In assessing the translocation of any aquatic species, the economic and social benefits must be balanced with biological and environmental risks.
Draft Plan Of Management For The Proposed Miaboolya Beach Fish Habitat Protection Area., Department Of Fisheries Western Australia
Draft Plan Of Management For The Proposed Miaboolya Beach Fish Habitat Protection Area., Department Of Fisheries Western Australia
Fisheries Management Papers
The aims of the proposal outlined in this draft management plan is to protect and rehabilitate the aquatic habitat of Miaboolya Beach, the associated mangrove ecosystem, and involve the community in their management.
By setting the area aside as a FHPA, the Department of Fisheries will establish a framework to promote and actively conserve all the habitats within the Miaboolya system, as described in Section 3 of this document.
Rapid Ecological Assessment Of The Northern Mixedgrass Prairie Ecoregion (Nebraska Portion), Gerry Steinauer
Rapid Ecological Assessment Of The Northern Mixedgrass Prairie Ecoregion (Nebraska Portion), Gerry Steinauer
Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts
This study was conducted as part of The Nature Conservancy’s (TNC) project to conduct ecoregional conservation planning throughout the continental United States. TNC contracted with the Nebraska Game and Parks Commission (NGPC) to conduct a rapid ecological assessment (REA) of the portion of the Northern Mixedgrass Prairie ecoregion (NMGP) occurring in Nebraska. This report concludes that agreement. Roughly the northern 1/5 of central Nebraska occurs within the NMGP (Figure 1). This ecoregion also includes extensive area of central South Dakota and central North Dakota. The objective of this study was to conduct a REA of the untilled landscapes within the …
Fisheries Research Report No.131 - Pilchard (Sardinops Sagax) Nursery Areas And Recruitment Process Assessment Between Different Regions In Southern Western Australia, Daniel J. Gaughan, Graeme Baudains, Ronald W. Mitchell, Timothy I. Leary
Fisheries Research Report No.131 - Pilchard (Sardinops Sagax) Nursery Areas And Recruitment Process Assessment Between Different Regions In Southern Western Australia, Daniel J. Gaughan, Graeme Baudains, Ronald W. Mitchell, Timothy I. Leary
Fisheries Research Reports
Pilchards have been the primary target of purse seine fisheries along the south and lower west coasts of WA for nearly 15 years. Western Australia’s pilchard population consists of separate west coast and south coast breeding stocks. The adult pilchards in the south coast stock can, in turn, be further divided into three separate assemblages. These adult assemblages correspond to the purse seine fisheries at Albany, Bremer Bay and Esperance. However, while the separateness of the adult assemblages is well established, the status of the juveniles within the context of these adult groups is not understood. For example, the habitats …
Fisheries Research Report No. 137 - Annual Report On The Monitoring Of The Recreational Marron Fishery In 2000, With An Analysis Of Long-Term Data And Changes Within This Fishery, Brett Molony, Chris Bird
Fisheries Research Report No. 137 - Annual Report On The Monitoring Of The Recreational Marron Fishery In 2000, With An Analysis Of Long-Term Data And Changes Within This Fishery, Brett Molony, Chris Bird
Fisheries Research Reports
This report presents the data from the 2000 season and compares the results with previous records. Although the 2000 marron season was relatively successful compared to the 1999 season it was still modest in terms of the historical records. Further, the recreational marron fishery continues to be declining in terms of catch rate, CPUE and other indicators derived from four data sources. The discussion highlights the variable nature of marron populations and the possible causes of the very different population structures of marron within the fishery. Further, possible reasons for the long-term decline of the marron fishery are discussed. It …
Use Of High Pressure Liquid Chromatography To Detect And Quantify Oxytetracycline Marks In Walleye Otoliths And Dorsal Spines, Michael J. Hawkins
Use Of High Pressure Liquid Chromatography To Detect And Quantify Oxytetracycline Marks In Walleye Otoliths And Dorsal Spines, Michael J. Hawkins
Electronic Theses and Dissertations
Oxytetracycline (OTC) is used to chemically mark calcified structures in walleye Stizostedion vitreum fry and fingerlings. Current visual methods for detection of these marks are subjective, and biologists are unable to quantify the amount of OTC in a sample. The goal of this study was to determine if high pressure liquid chromatography (HPLC) is a feasible and superior alternative for detecting and quantifying OTC in otoliths of fry-marked and spines of fingerlingmarked walleyes. Study objectives were to validate methodology of extraction of OTC from calcified tissue, detect and quantify extracted OTC using HPLC, and determine a cost comparison of current …