Fish Pond Management
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The Role of a Fish Pond in Optimizing Nutrient Flows in Integrated Agriculture-Aquaculture Farming Systems
The role of a fish pond in optimizing nutrient flows in integrated agriculture-aquaculture farming systems Dang Kieu Nhan Promotor: Prof. Dr. J.A.J. Verreth Hoogleraar Aquacultuur en Visserij Wageningen Universiteit Co-promotor: Dr. M.C.J. Verdegem Universitair Docent, Leerstoelgroep Aquacultuur en Visserij Wageningen Universiteit Promotiecommissie: Prof. Dr. Ir. A.J. van der Zijpp Wageningen Universiteit Dr. M. Ana Milstein Fish and Aquaculture Research Station, Israel Prof. Dr. R. Ruben Radboud Universiteit Nijmegen Prof. Dr. Nguyen Anh Tuan Can Tho University, Vietnam Dit onderzoek is uitgevoerd binnen de onderzoeksschool Wageningen Institute of Animal Sciences (WIAS) The role of a fish pond in optimizing nutrient flows in integrated agriculture-aquaculture farming systems Dang Kieu Nhan Proefschrift ter verkrijging van de graad van doctor op gezag van de rector magnificus van Wageningen Universiteit, Prof. dr. M.J.Kropff, in het openbaar te verdedigen op woensdag 3 oktober 2007 des namiddags te vier uur in de Aula Nhan, D.K., 2007. The role of a fish pond in optimizing nutrient flows in integrated agriculture-aquaculture farming systems. PhD Thesis, Wageningen University, The Netherlands ISBN: 978-90-8504-739-1 Contents Chapter 1 General introduction 1 Chapter 2 Integrated freshwater aquaculture, crop and livestock production in 9 the Mekong Delta, Vietnam: determinants and the role of the pond Chapter 3 Food inputs, water quality and nutrient accumulation in integrated 37 pond systems: a multivariate approach Chapter 4 Water and nutrient budgets of ponds in integrated agriculture- 67 aquaculture systems in the Mekong Delta, Vietnam Chapter 5 Economic and nutrient discharge tradeoffs of excreta-fed 93 aquaculture in the Mekong Delta, Vietnam Chapter 6 General discussion 121 References 133 Summary (English) 145 Summary (Dutch) 149 Summary (Vietnamese) 153 Acknowledgements 157 Training and Supervision Plan 159 Curriculum vitae 160 List of publications 161 Chapter 1 General introduction Chapter 1 1. -
Best Practices for Catch-And-Release Recreational Fisheries – Angling Tools and Tactics
G Model FISH-4421; No. of Pages 13 ARTICLE IN PRESS Fisheries Research xxx (2016) xxx–xxx Contents lists available at ScienceDirect Fisheries Research j ournal homepage: www.elsevier.com/locate/fishres Best practices for catch-and-release recreational fisheries – angling tools and tactics a,∗ b a Jacob W. Brownscombe , Andy J. Danylchuk , Jacqueline M. Chapman , a a Lee F.G. Gutowsky , Steven J. Cooke a Fish Ecology and Conservation Physiology Laboratory, Ottawa-Carleton Institute for Biology, Carleton University, 1125 Colonel By Dr., Ottawa, ON K1S 5B6, Canada b Department of Environmental Conservation, University of Massachusetts Amherst, 160 Holdsworth Way, Amherst, MA 01003 USA a r t i c l e i n f o a b s t r a c t Article history: Catch-and-release angling is an increasingly popular conservation strategy employed by anglers vol- Received 12 October 2015 untarily or to comply with management regulations, but associated injuries, stress and behavioural Received in revised form 19 April 2016 impairment can cause post-release mortality or fitness impairments. Because the fate of released fish Accepted 30 April 2016 is primarily determined by angler behaviour, employing ‘best angling practices’ is critical for sustain- Handled by George A. Rose able recreational fisheries. While basic tenants of best practices are well established, anglers employ a Available online xxx diversity of tactics for a range of fish species, thus it is important to balance science-based best practices with the realities of dynamic angler behaviour. Here we describe how certain tools and tactics can be Keywords: Fishing integrated into recreational fishing practices to marry best angling practices with the realities of angling. -
Physiological Impacts of Catch-And-Release Angling Practices on Largemouth Bass and Smallmouth Bass
Physiological Impacts of Catch-and-Release Angling Practices on Largemouth Bass and Smallmouth Bass STEVEN J. COOKE1 Department of Natural Resources and Environmental Sciences, University of Illinois and Center for Aquatic Ecology, Illinois Natural History Survey, 607 East Peabody Drive, Champaign, Illinois 61820, USA JASON F. S CHREER Department of Biology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada DAVID H. WAHL Kaskaskia Biological Station, Center for Aquatic Ecology, Illinois Natural History Survey, RR #1, Post Office Box 157, Sullivan, Illinois 61951, USA DAVID P. P HILIPP Department of Natural Resources and Environmental Sciences, University of Illinois and Center for Aquatic Ecology, Illinois Natural History Survey, 607 East Peabody Drive, Champaign, Illinois 61820, USA Abstract.—We conducted a series of experiments to assess the real-time physiological and behavioral responses of largemouth bass Micropterus salmoides and smallmouth bass M. dolomieu to different angling related stressors and then monitored their recovery using both cardiac output devices and locomotory activity telemetry. We also review our current understanding of the effects of catch-and-release angling on black bass and provide direction for future research. Collectively our data suggest that all angling elicits a stress response, however, the magnitude of this response is determined by the degree of exhaustion and varies with water temperature. Our results also suggest that air exposure, especially following exhaustive exercise, places an additional stress on fish that increases the time needed for recovery and likely the probability of death. Simulated tournament conditions revealed that metabolic rates of captured fish increase with live-well densities greater than one individual, placing a greater demand on live-well oxygen conditions. -
Ecosystem Services Generated by Fish Populations
AR-211 Ecological Economics 29 (1999) 253 –268 ANALYSIS Ecosystem services generated by fish populations Cecilia M. Holmlund *, Monica Hammer Natural Resources Management, Department of Systems Ecology, Stockholm University, S-106 91, Stockholm, Sweden Abstract In this paper, we review the role of fish populations in generating ecosystem services based on documented ecological functions and human demands of fish. The ongoing overexploitation of global fish resources concerns our societies, not only in terms of decreasing fish populations important for consumption and recreational activities. Rather, a number of ecosystem services generated by fish populations are also at risk, with consequences for biodiversity, ecosystem functioning, and ultimately human welfare. Examples are provided from marine and freshwater ecosystems, in various parts of the world, and include all life-stages of fish. Ecosystem services are here defined as fundamental services for maintaining ecosystem functioning and resilience, or demand-derived services based on human values. To secure the generation of ecosystem services from fish populations, management approaches need to address the fact that fish are embedded in ecosystems and that substitutions for declining populations and habitat losses, such as fish stocking and nature reserves, rarely replace losses of all services. © 1999 Elsevier Science B.V. All rights reserved. Keywords: Ecosystem services; Fish populations; Fisheries management; Biodiversity 1. Introduction 15 000 are marine and nearly 10 000 are freshwa ter (Nelson, 1994). Global capture fisheries har Fish constitute one of the major protein sources vested 101 million tonnes of fish including 27 for humans around the world. There are to date million tonnes of bycatch in 1995, and 11 million some 25 000 different known fish species of which tonnes were produced in aquaculture the same year (FAO, 1997). -
Release Recreational Angling to Effectively Conserve Diverse Fishery
Biodiversity and Conservation 14: 1195–1209, 2005. Ó Springer 2005 DOI 10.1007/s10531-004-7845-0 Do we need species-specific guidelines for catch-and- release recreational angling to effectively conserve diverse fishery resources? STEVEN J. COOKE1,* and CORY D. SUSKI2 1Department of Forest Sciences, Centre for Applied Conservation Research, University of British Columbia, 2424 Main Mall, Vancouver, BC, Canada V6T 1Z4; 2Department of Biology, Queen’s University, Kingston, ON, Canada K7L 3N6; *Author for correspondence (e-mail: [email protected]) Received 2 April 2003; accepted in revised form 12 January 2004 Key words: Catch-and-release, Fisheries conservation, Hooking mortality, Recreational angling, Sustainable fisheries Abstract. Catch-and-release recreational angling has become very popular as a conservation strategy and as a fisheries management tool for a diverse array of fishes. Implicit in catch-and-release angling strategies is the assumption that fish experience low mortality and minimal sub-lethal effects. Despite the importance of this premise, research on this topic has focused on several popular North American sportfish, with negligible efforts directed towards understanding catch-and-release angling effects on alternative fish species. Here, we summarise the existing literature to develop five general trends that could be adopted for species for which no data are currently available: (1) minimise angling duration, (2) minimise air ex- posure, (3) avoid angling during extremes in water temperature, (4) use barbless hooks and artificial lures=flies, and (5) refrain from angling fish during the reproductive period. These generalities provide some level of protection to all species, but do have limitations. Therefore, we argue that a goal of conservation science and fisheries management should be the creation of species-specific guidelines for catch-and-release. -
Searching for Responsible and Sustainable Recreational Fisheries in the Anthropocene
Received: 10 October 2018 Accepted: 18 February 2019 DOI: 10.1111/jfb.13935 FISH SYMPOSIUM SPECIAL ISSUE REVIEW PAPER Searching for responsible and sustainable recreational fisheries in the Anthropocene Steven J. Cooke1 | William M. Twardek1 | Andrea J. Reid1 | Robert J. Lennox1 | Sascha C. Danylchuk2 | Jacob W. Brownscombe1 | Shannon D. Bower3 | Robert Arlinghaus4 | Kieran Hyder5,6 | Andy J. Danylchuk2,7 1Fish Ecology and Conservation Physiology Laboratory, Department of Biology and Recreational fisheries that use rod and reel (i.e., angling) operate around the globe in diverse Institute of Environmental and Interdisciplinary freshwater and marine habitats, targeting many different gamefish species and engaging at least Sciences, Carleton University, Ottawa, 220 million participants. The motivations for fishing vary extensively; whether anglers engage in Ontario, Canada catch-and-release or are harvest-oriented, there is strong potential for recreational fisheries to 2Fish Mission, Amherst, Massechussetts, USA be conducted in a manner that is both responsible and sustainable. There are many examples of 3Natural Resources and Sustainable Development, Uppsala University, Visby, recreational fisheries that are well-managed where anglers, the angling industry and managers Gotland, Sweden engage in responsible behaviours that both contribute to long-term sustainability of fish popula- 4Department of Biology and Ecology of Fishes, tions and the sector. Yet, recreational fisheries do not operate in a vacuum; fish populations face Leibniz-Institute -
Response by Anglers to a Differential Harvest Regulation on Three Black Bass Species at Skiatook Lake, Oklahoma
9 Response by anglers to a differential harvest regulation on three black bass species at Skiatook Lake, Oklahoma James M. Long U.S. Geological Survey, Oklahoma Cooperative Fish and Wildlife Research Unit, Natural Resource Ecology and Management, 007 Agriculture Hall, Oklahoma State Uni- versity, Stillwater, OK, 74078 Randy G. Hyler Department of Zoology, Oklahoma State University, Stillwater, OK, 74078 Present address: Iowa Department of Transportation, Office of Location and Environment, 800 Lincoln Way, Ames, IA 50010. William L. Fisher U.S. Geological Survey, Oklahoma Cooperative Fish and Wildlife Research Unit, Natural Resource Ecology and Management, 007 Agriculture Hall, Oklahoma State Uni- versity, Stillwater, OK, 74078 Present address: U.S. Geological Survey, New York Cooperative Fish and Wildlife Research Unit, Fernow Hall, Cornell University, Ithaca, NY 14853. Angler responses to a differential harvest regulation on black bass, Micropterus spp. at Skiatook Lake, Oklahoma was assessed from 1997 to 1999. This regulation al- lowed anglers to harvest 15 spotted bass, M. punctulatus (Rafinesque) of any size and six largemouth bass, M. salmoides (Lacepède) and smallmouth bass, M. dolomieu Lacepède greater than 356 mm (in aggregate) per day. Anglers’ ability to differentiate spotted bass increased after the first year of the study, but their willingness to target or harvest spotted bass declined. Mean angler catch rates (number of fish per angling hour) for all three species remained steady throughout the study. Total harvest of largemouth bass and smallmouth bass was reduced by 1999 while total harvest of spotted bass remained steady throughout the study period. Despite the more liberal regulations as incentive, the regulation failed to accomplish the primary objective of increasing angler harvest of spotted bass because of high rates of voluntary catch and release. -
Water Quality Guidelines for the Management of Pond Fish Culture
International Journal of Environment Sciences Vol. 5 No.INTERNATIONAL 2 (July-December, 2019) JOURNAL OF ENVIRONMENTAL SCIENCES Volume 3, No 6, 2013 Received:© Copyright 14th May by 2019the authors Revised: - Licensee 30th June IPA 2019- Under Accepted: Creative 15th Commons July 2019 license 3.0 Research article ISSN 0976 – 4402 Water quality guidelines for the management of pond fish culture Anita Bhatnagar, Pooja Devi Department of Zoology, Kurukshetra University, Kurukshetra, India-136119 [email protected] doi: 10.6088/ijes.2013030600019 ABSTRACT The Optimum fish production is totally dependent on the physical, chemical and biological qualities of water to most of the extent. Hence, successful pond management requires an understanding of water quality. Water quality is determined by variables like temperature, transparency, turbidity, water colour, carbon dioxide, pH, alkalinity, hardness, unionised ammonia, nitrite, nitrate, primary productivity, BOD, plankton population etc. In the present chapter water quality management principles in fish culture have been reviewed to make aware the fish culturist and environmentalist about the important water quality factors that influence health of a pond and are required in optimum values to increase the fish yields to meet the growing demands of present day scenario of the world, when the food resources are in a state of depletion and the population pressure is increasing on these resources. Keywords: Assessment and Monitoring, Culture, Fish productivity, Parameters, Water quality 1. Introduction Fish is an inexpensive source of protein and an important cash crop in many regions of world and water is the physical support in which they carry out their life functions such as feeding, swimming, breeding, digestion and excretion (Bronmark and Hansson, 2005). -
Fishing Regulations, 2020-2021, Available Online, from Your License Distributor, Or Any DNR Service Center
Wisconsin Fishing.. it's fun and easy! To use this pamphlet, follow these 5 easy steps: Restrictions: Be familiar with What's New on page 4 and the License Requirements 1 and Statewide Fishing Restrictions on pages 8-11. Trout fishing: If you plan to fish for trout, please see the separate inland trout 2 regulations booklet, Guide to Wisconsin Trout Fishing Regulations, 2020-2021, available online, from your license distributor, or any DNR Service Center. Special regulations: Check for special regulations on the water you will be fishing 3 in the section entitled Special Regulations-Listed by County beginning on page 28. Great Lakes, Winnebago System Waters, and Boundary Waters: If you are 4 planning to fish on the Great Lakes, their tributaries, Winnebago System waters or waters bordering other states, check the appropriate tables on pages 64–76. Statewide rules: If the water you will be fishing is not found in theSpecial Regulations- 5 Listed by County and is not a Great Lake, Winnebago system, or boundary water, statewide rules apply. See the regulation table for General Inland Waters on pages 62–63 for seasons, length and bag limits, listed by species. ** This pamphlet is an interpretive summary of Wisconsin’s fishing laws and regulations. For complete fishing laws and regulations, including those that are implemented after the publica- tion of this pamphlet, consult the Wisconsin State Statutes Chapter 29 or the Administrative Code of the Department of Natural Resources. Consult the legislative website - http://docs. legis.wi.gov - for more information. For the most up-to-date version of this pamphlet, go to dnr.wi.gov search words, “fishing regulations. -
Bluegill (Lepomis Macrochirus) Management and Fishing in Pennsylvania
Pennsylvania Fish & Boat Commission fishandboat.com Bluegill (Lepomis macrochirus) Management and Fishing in Pennsylvania Prepared by R. Lorantas, B. Frick PFBC Warmwater Unit; and Fisheries Management Biologists 2018 Update Goal: Maintain or enhance Bluegill sport fisheries through harvest management of naturally sustained Bluegill populations and through habitat preservation and enhancement. Judiciously stock Bluegill in compatible new and reclaimed habitats. Bluegill occur throughout Pennsylvania and were originally indigenous to the Ohio River and Lake Erie Drainages. The Ohio River Drainage includes the Ohio River, Allegheny River, and Monongahela River Drainages. Bluegills typically occupy reservoir and lake (lentic) habitats, as well as slow moving river and stream (lotic) habitats within these drainages. Bluegill stocking by the Pennsylvania Fish and Boat Commission into the Delaware, Susquehanna, and Potomac River Drainages lead to colonization of waters within these drainages. The Susquehanna River Drainage includes the West Branch Susquehanna River and Juniata River Drainages. The Delaware River Drainage includes the Lehigh River and Schuylkill River Drainages. Bluegill are now self-sustaining throughout Pennsylvania. Most natural, warm-water lakes and man-made reservoirs in Pennsylvania contain self-sustaining Bluegill populations. In Pennsylvania, Bluegills generally occur at lower densities in rivers and streams compared to lakes and reservoirs. Bluegill populations are managed for sport fishing through harvest management, habitat management, habitat enhancement, and through stocking. Stocking for many warmwater or coolwater fish species does not often occur on an annual basis to maintain populations. Stocking typically occurs in conjunction with establishing a self-sustaining Bluegill population in newly filled or newly acquired reservoirs that do not contain Bluegill or contain low-density Bluegill populations. -
Catch and Release Fishing; Effects on Bass Populations
Pennsylvania Fish and Boat Commission Harrisburg PA www.fish.state.pa.us Catch & Release Fishing; Effects on Bass Populations By PFBC Staff Catch-and-release fishing is often seen by the public as an effective way of keeping good-sized largemouth bass and smallmouth bass in a population so that these fish can be caught again. But does it work? That is, how well do bass survive catch and release, and are there things anglers can do to improve the odds? A lot of research has been conducted on this topic. Here we will discuss the facts of catch-and-release mortality and how anglers can help improve bass survival. Catch-and-release fishing has become the norm, instead of the exception. Anglers proudly proclaim they release their catch with bumper stickers, hats and t-shirts. But just because the bass swims away, its survival isn’t guaranteed. Many anglers wonder about bass survival after fishing tourna- ments, and if catch and release works to keep good-sized bass in their local lakes and rivers. Much research on this topic has been done in Pennsylvania and elsewhere. There are many issues that affect if a bass will survive being caught or not. By using the best practices possible, anglers can help bass survive. Mortality Mortality can come about two ways in fish; naturally and through fishing. Natural causes include disease or being eaten by a predator. Fishing mortality can come from either the fish being harvested by an angler or from injuries or stress from catch and release. The mortality rate of a waterway is a measure of how many fish die or are removed over a year. -
Environment Agency
- Joo-TII W Srr 6°X E n v ir o n m e n t A g e n c y ENVIRONMENT AGENCY SOUTH WEST REGION FISHERIES TECHNICAL REPORT RIVER DART NET LIMITATION ORDER REVIEW AUGUST 2002 FRCN/02/03 K.J.BROAD I.HOPE REGIONAL WATER MANAGER River Dart Net Limitation Order Review 2002 Contents List 1.0 Introduction 2.0 Net catcbes 3.0 Rod catches 4.0 Compliance with salmon spawning targets 5.0 Juvenile distribution and abundance 6.0 Fishery status 7.0 Management options 8.0 Consultation 9.0 Agency proposals 10.0 References 1.0 Introduction 1.1 The net fishery for salmon and sea trout on the River Dart is regulated by a Net Limitation Order (NLO) and byelaws. The current NLO limits the number of nets to a maximum of fifteen. It expires on 25 February 2003. 1.2 When the current NLO was confirmed by the Minister in February 2000, he asked the Agency to consider the need for additional measures to reduce exploitation of the River Dart salmon stock. We have now updated our stock assessment, and taken account of the effect of new national byelaws, reductions in fishing effort and catch and release. 1.3 The main improvement in our stock assessment has been the estimation of annual rod exploitation rates for spawning target compliance assessment. This has resulted in a significant change in the performance of the River Dart salmon stock over the last ten years. 1.4 Proposals are made for the future management of the Dart salmon fishery.