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Expanding Instream Flows To Protect Ecosystems In Overallocated River Basins, Belize A. Lane, David E. Rosenberg 2018 Utah State University

Expanding Instream Flows To Protect Ecosystems In Overallocated River Basins, Belize A. Lane, David E. Rosenberg

Reports

Utahns are expressing a rapidly growing interest in protecting and enhancing instream flows for outdoor recreation and environmental benefits (Endter-Wada et al. 2015). However, many Utah rivers are already over-allocated for agricultural, municipal, hydropower and other water uses, making it difficult to procure additional water for instream flows. ‘Use it or lose it’ western water law and mentality encourages Utahns to use water rather than return it to rivers and ecosystems.

This briefing reviews existing instream flow practices allowed by the Utah water rights system and the challenges to implementation. We suggest key technical and legislative opportunities within and outside ...


Irondequoit Bay Fish Stock Assessments 2005-2015, Matthew J. Sanderson 2018 NYS DEC

Irondequoit Bay Fish Stock Assessments 2005-2015, Matthew J. Sanderson

Technical Reports

Warm water fisheries assessments using standard gangs of gill nets were conducted in Irondequoit Bay in September of 2005, 2010, and 2015. In addition, a nighttime electrofishing survey was conducted in June 2009. The surveys were conducted to 1) assess the fish community; 2) determine the contribution of stocked fingerlings to the walleye (Sander vitreus) population; 3) estimate population characteristics of walleye, northern pike (Esox lucius), yellow perch (Perca flavescens), and largemouth bass (Micropterus salmoides), 4) compare fish community structure to statewide surveys; and 5) guide the development of appropriate management recommendations. From 2005 to 2015 overall gill net catch ...


Of Oyster Planting And Oyster Experiments In Maine (1800s-1970s), Randy Lackovic 2018 University of Maine

Of Oyster Planting And Oyster Experiments In Maine (1800s-1970s), Randy Lackovic

Darling Marine Center Historical Documents

This is a history of oyster planting and oyster experiments in Maine from the 1800s to the 1970s.


Evaluating Recruitment Of American Eel, Anguilla Rostrata, In The Potomac River (Spring 2018), Troy D. Tuckey, Mary C. Fabrizio 2018 Virginia Institute of Marine Science

Evaluating Recruitment Of American Eel, Anguilla Rostrata, In The Potomac River (Spring 2018), Troy D. Tuckey, Mary C. Fabrizio

Reports

No abstract provided.


2018 Annual Report Estimating Relative Juvenile Abundance Of Ecologically Important Finfish In The Virginia Portion Of Chesapeake Bay (1 July 2017 – 30 June 2018), Troy D. Tuckey, Mary C. Fabrizio 2018 Virginia Institute of Marine Science

2018 Annual Report Estimating Relative Juvenile Abundance Of Ecologically Important Finfish In The Virginia Portion Of Chesapeake Bay (1 July 2017 – 30 June 2018), Troy D. Tuckey, Mary C. Fabrizio

Reports

EXECUTIVE SUMMARY

1 July 2017 – 30 June 2018

The Trawl Survey provides crucial data to state, regional, and national fisheries management agencies, including the Virginia Marine Resources Commission (VMRC), the Atlantic States Marine Fisheries Commission (ASMFC), the Mid-Atlantic Fisheries Management Council (MAFMC), and the National Marine Fisheries Service (NMFS). The MAFMC recognizes the juvenile trawl survey as one of the key predictors of Summer Flounder recruitment. Annual indices of juvenile abundance have been generated from trawl survey data for species of key recreational, ecological, and commercial importance in the Virginia portion of Chesapeake Bay. These include Spot, Atlantic Croaker, Weakfish ...


Using Local Fishery Monitoring To Understand Small-Scale Coastal Fisheries In Tanzania, Matthew Robertson 2018 Louisiana State University

Using Local Fishery Monitoring To Understand Small-Scale Coastal Fisheries In Tanzania, Matthew Robertson

LSU Master's Theses

Nearshore marine fisheries provide the main source of protein for nearly 9 million people in the coastal villages of Tanzania, yet for decades the fisheries have shown signs of overexploitation. These fisheries are small-scale and co-managed by local coastal communities in groups known as Beach Management Units (BMUs). BMUs monitor individual fishing trip data (e.g. gear, vessel, taxa); however, these data have only been analyzed in nationally aggregated statistics and to our knowledge, are not presently used in management decision making. The present thesis aimed to identify the forms of data and information that local fishery monitoring can record ...


Rational Ecosystems-Based Fisheries Management, Rajesh Singh, Quinn Weninger 2018 Iowa State University

Rational Ecosystems-Based Fisheries Management, Rajesh Singh, Quinn Weninger

Economics Working Papers

Ecosystem-based fisheries management (EBFM) seeks to incorporate the full complexity of marine ecosystems into the design of fisheries management policies and regulations. This paper presents a model of a multiple-species, and spatially-temporally heterogeneous fishery that is managed under a tradable quota regulation. Past studies of fisheries management in this setting have, for purposes of simplification, resorted to (1) restrictive assumptions for multiple-species harvesting technologies, (2) myopic and ad hoc behavioral rules for the fishing sector, and (3) assumptions for regulatory control that do not exist in real world fisheries. We derive a rational expectations, ecological-economic equilibrium outcome for harvests, discards ...


The Shellfish Corner: The Promises Of Aquaculture And Caveat Emptor, Michael A. Rice 2018 University of Rhode Island

The Shellfish Corner: The Promises Of Aquaculture And Caveat Emptor, Michael A. Rice

Michael A Rice

For at least five decades in America there has been a fascination about aquaculture as a means to "feed the world" in a sustainable way. Periodic reporting by the popular press has generated excitement about the potential of aquaculture among the general public and often this excitement often leads to unrealistic expectations and engagement in unsound business decision making by the novices in the field. Aquaculture entrepreneurs and investors are urged to exercise good judgement by sticking with with fundamentally sound business planning while maintaining realistic business expectations.


Towards Sustainable Aquafeeds: Evaluating Substitution Of Fishmeal With Lipid-Extracted Microalgal Co-Product (Nannochloropsis Oculata) In Diets Of Juvenile Nile Tilapia (Oreochromis Niloticus), Pallab K. Sarker, Anne R. Kapuscinski, Ashley Y. Bae, Emily Donaldson, Devin S. Fitzgerald, Oliver F. Edelson 2018 Dartmouth College

Towards Sustainable Aquafeeds: Evaluating Substitution Of Fishmeal With Lipid-Extracted Microalgal Co-Product (Nannochloropsis Oculata) In Diets Of Juvenile Nile Tilapia (Oreochromis Niloticus), Pallab K. Sarker, Anne R. Kapuscinski, Ashley Y. Bae, Emily Donaldson, Devin S. Fitzgerald, Oliver F. Edelson

Open Dartmouth: Faculty Open Access Articles

Microalgae companies increasingly seek markets for defatted biomass that is left over after extracting omega-3 rich oil for human nutraceuticals and crude oil for fuels. Such a protein-rich co-product is a promising alternative to unsustainably sourced fishmeal in aquaculture diets. We report the first evaluation of co-product of the marine microalga Nannochloropsis oculata(N. oculata co-product) for replacing fishmeal in diets of Nile tilapia, a globally important aquaculture species. We conducted a nutrient digestibility experiment with N. oculata dried whole cells and N. oculata co-product, followed by an 84-day nutritional feeding experiment with N. oculata co-product. N. oculata co-product, more ...


Techno-Economic Analysis (Tea) Of Extruded Aquafeeds, Rashid Suleiman, Kurt A. Rosentrater 2018 Sokoine University of Agriculture

Techno-Economic Analysis (Tea) Of Extruded Aquafeeds, Rashid Suleiman, Kurt A. Rosentrater

Agricultural and Biosystems Engineering Publications

The worldwide decline and overexploitation of ocean fisheries stocks had provided an incentive for the rapid growth of aquaculture. The aquaculture industry has been recognized as the fastest-growing food production system globally, with a 10% increase in production per year and is one of the most reliable and sustainable growth markets for manufactured feeds. Extrusion technology has been extensively used in the modern aquatic feed manufacturing, due to nutritional, physical properties improvements and cost effectiveness of feeds. Cost related to aquatic feed remains the biggest challenge, especially for small-scale producers. In order to understand costs and potential breakeven points, a ...


Conservation Of Freshwater Live-Bearing Fishes: Development Of Germplasm Repositories For Goodeids, Yue Liu 2018 Louisiana State University

Conservation Of Freshwater Live-Bearing Fishes: Development Of Germplasm Repositories For Goodeids, Yue Liu

LSU Doctoral Dissertations

Fishes of the family Goodeidae are considered to be among the most imperiled taxa in the world. The goal of this project was to provide a foundation for development of sperm repositories for goodeids and to use them as a model to assist conservation programs for imperiled freshwater live-bearing fishes. Development of such repositories is challenging because of unusual reproductive characteristics of live-bearing fishes, such as sperm bundles, internal fertilization, and the bearing of live young. Standardized methods were established to evaluate quality-related attributes of sperm bundles. The different features between activation of free and bundled sperm were investigated and ...


Notes On Contributors, 2018 The University of Maine

Notes On Contributors

The Catch

No abstract provided.


On How A Fisherman Supports Fishermen: Oral History With Patrick Shepard, Natalie Springuel 2018 The University of Maine

On How A Fisherman Supports Fishermen: Oral History With Patrick Shepard, Natalie Springuel

The Catch

No abstract provided.


Catching Up With Robin Alden, Kathleen Ellis 2018 The University of Maine

Catching Up With Robin Alden, Kathleen Ellis

The Catch

No abstract provided.


Reflections On The Water, Patricia S. Ranzoni 2018 Bucksport, ME

Reflections On The Water, Patricia S. Ranzoni

The Catch

No abstract provided.


The World Is Your Oyster, Aliya Uteuova 2018 University of Maine

The World Is Your Oyster, Aliya Uteuova

The Catch

No abstract provided.


Editor's Note: The Catch Volume Vi, Catherine Schmitt 2018 The University of Maine

Editor's Note: The Catch Volume Vi, Catherine Schmitt

The Catch

No abstract provided.


Full Issue Volume Vi, 2018 The University of Maine

Full Issue Volume Vi

The Catch

No abstract provided.


Abundance Trends Of Highly Migratory Species In The Atlantic Ocean: Accounting For Water Temperature Profiles, Patrick D. Lynch, Kyle W. Shertzer, Enric Cortes, Robert J. Latour 2018 Virginia Institute of Marine Science

Abundance Trends Of Highly Migratory Species In The Atlantic Ocean: Accounting For Water Temperature Profiles, Patrick D. Lynch, Kyle W. Shertzer, Enric Cortes, Robert J. Latour

VIMS Articles

Relative abundance trends of highly migratory species (HMS) have played a central role in debates over the health of global fisheries. However, such trends have mostly been inferred from fishery catch rates, which can provide misleading signals of relative abundance. While many biases are accounted for through traditional catch rate standardization, pelagic habitat fished is rarely directly considered. Using a method that explicitly accounts for temperature regimes, we analysed data from the US pelagic longline fishery to estimate relative abundance trends for 34 HMS in the Atlantic Ocean from 1987 through 2013. This represents one of the largest studies of ...


Virginia Shellfish Aquaculture Situation And Outlook Report: Results Of The 2017 Virginia Shellfish Aquaculture Crop Reporting Survey, Karen Hudson, Virginia Sea Grant Marine Advisory Program 2018 Virginia Institute of Marine Science

Virginia Shellfish Aquaculture Situation And Outlook Report: Results Of The 2017 Virginia Shellfish Aquaculture Crop Reporting Survey, Karen Hudson, Virginia Sea Grant Marine Advisory Program

Reports

No abstract provided.


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