Aquaculture and Fisheries Commons^™

Ecological Neighborhoods As A Framework For Umbrella Species Selection, Erica F. Stuber, Joseph J. Fontaine

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Umbrella species are typically chosen because they are expected to confer protection for other species assumed to have similar ecological requirements. Despite its popularity and substantial history, the value of the umbrella species concept has come into question because umbrella species chosen using heuristic methods, such as body or home range size, are not acting as adequate proxies for the metrics of interest: species richness or population abundance in a multi-species community for which protection is sought. How species associate with habitat across ecological scales has important implications for understanding population size and species richness, and therefore may be a …

A New Age In Aquamedicine: Unconventional Approach In Studying Aquatic Diseases, Michael Gotesman, Simon Menanteau-Ledouble, Mona Saleh, Sven M. Bergmann, Mansour El-Matbouli

Publications and Research

Background

Marine and aquaculture industries are important sectors of the food production and global trade. Unfortunately, the fish food industry is challenged with a plethora of infectious pathogens. The freshwater and marine fish communities are rapidly incorporating novel and most up to date techniques for detection, characterization and treatment strategies. Rapid detection of infectious diseases is important in preventing large disease outbreaks.

Main text

One hundred forty-six articles including reviews papers were analyzed and their conclusions evaluated in the present paper. This allowed us to describe the most recent development research regarding the control of diseases in the aquatic environment …

Potential Minimum Threshold For Pallid Sturgeon Relative Condition In The Lower Missouri River, Kirk D. Steffensen

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Pallid Sturgeon (Scaphirhynchus albus) condition has declined in the lower Missouri River but the cause and the effects of this decline remain uncertain. Adult Pallid Sturgeon are becoming reproductively ready less frequently and sub-adult Pallid Sturgeon are likely delaying sexual maturation. Even more concerning, Pallid Sturgeon capture rates have declined the past two years (i.e., 2016 and 2017), despite the ongoing Pallid Sturgeon stocking program. Several Pallid Sturgeon that have been captured are visually emaciated but a minimum condition threshold has not been described. Therefore, the aim of this study is to present a potential lethal condition level for …

Western Australian Sea Cucumber Resource - Harvest Strategy 2018-2023, Department Of Primary Industries And Regional Development

Fisheries Management Papers

This publication of harvest strategies is intended to make the decision-making considerations and processes for the management of specified aquatic resources publicly transparent and provide a basis for informed dialogue on management actions with resource users and other stakeholders.

Draft Management Plan For The Pilbara Crab Managed Fishery, Western Australia. Department Of Primary Industries And Regional Development

Fisheries Management Papers

An Instrument of Exemption currently allows for commercial fishing for crabs in the Pilbara. The Pilbara crab resource has been accessed commercially through the Pilbara Developing Crab Fishery (Developing Fishery) since it commenced in 2001, with the majority of effort being undertaken in Nickol Bay, near Dampier. Crab stocks in the Pilbara region are highly variable which can be attributed to environmental fluctuation, however, catches have remained steady over the past five years.

Draft Management Plan For The Pilbara Crab Managed Fishery, Department Of Primary Industries & Regional Development

Fisheries Management Papers

There are currently five Instruments of Exemption which allow for commercial fishing for crab in the Kimberley Developing Crab Fishery (Developing Fishery). Three of the Exemptions are held by non-indigenous commercial operators, and two are held by Aboriginal Body-C orporates who fish in smaller areas with the consent of traditional owners. These Exemption holders have been accessing the Developing Fishery since it first commenced in 2006. The total catch of mud crab for the Developing Fishery peaked in 2015 at 15.3t. This catch represented a 20% increase on the reported catch from 2014 and is 39% higher than catches recorded …

Draft Management Plan For The Kimberley Crab Managed Fishery, Department Of Fisheries

Fisheries Management Papers

No abstract provided.

Draft Management Plan For The Pilbara Crab Managed Fishery, Department Of Fisheries

Fisheries Management Papers

No abstract provided.

Population Characteristics Of A Closed Northern Pike (Esox Lucius) Catch-And-Release Population In Minnesota, John Kempe

Biology Graduate Theses

Literature regarding catch-and-release populations of Northern Pike are rare and provide a unique perspective on their population dynamics. Shingobee Lake is a 64- ha mesotrophic lake with a maximum depth of 12.2 m located in northern Minnesota. Northern Pike fishing has been catch-and-release only since 2005, and there are no public accesses on the lake. Annual ice-out trap-netting occurred from 2009-2017, and a sizable amount of the Northern Pike recaptured via trapnet or angling had been previously tagged (37-59%). The lack of exploitation and high tagging percentage provided a unique opportunity to study the population dynamics of Northern Pike. Shinogbee’s …

Gulls, Martin S. Lowney, Scott F. Beckerman, Scott C. Barras, Thomas W. Seamans

Wildlife Damage Management Technical Series

Abundant gull (Figure 1) populations in North America have led to a variety of conflicts with people. Gulls cause damage at aquaculture facilities and other properties, and often collide with aircraft. Their use of structures on and near water results in excessive amounts of bird droppings on boats and docks. Their presence near outdoor dining establishments, swimming beaches, and recreational sites can lead to negative interactions with people. Large amounts of gull fecal material pollutes water and beaches resulting in drinking water contamination and swim bans. A combination of dispersal techniques, exclusion and limited lethal control may reduce damage to …

The Relationship Between Measures Of Annual Livestock Disturbance In Western Riparian Areas And Stream Conditions Important To Trout, Salmon, And Char, Lindsey M. Goss, Brett B. Roper

Watershed Sciences Faculty Publications

Managing livestock disturbance in riparian zones in a manner that provides economic returns to ranchers while protecting streams is an important aspect of rangeland management on public lands in the western United States. Attempts to balance economic and ecologic outcomes have been made more difficult due to the presence of several salmonid species that are protected under the Endangered Species Act. One approach to proper management of livestock use near streams has been to define the allowable limits of disturbance using 2 metrics, streambank alteration and stubble height. We evaluated 153 stream reaches within the Interior Columbia Basin to determine …

Administration Of Eu (+ Fta) And Other Fleets Involved In Aquaculture Of Salmonids, World Maritime University

Research on the Administration of EU (+ FTA) and other Fleets Involved in Aquaculture of Salmonids

t is widely acknowledged that there exists a dearth of information with regard to fleet involved in aquaculture of salmonids. To address this insufficiency, and to understand the gaps and grey areas, Transport Canada funded a project in 2017 that aimed to gain an in-depth understanding of how the Norwegian, Irish, Chile and Australian fleet involved in aquaculture of salmonids are registered and administered. The World Maritime University undertook the project, and contracted external consultants to develop and deliver reports from a number of the aforementioned jurisdictions.

The project report provides a deep insight into the regulatory framework for the …

Emptying And Refilling Of Slime Glands In Atlantic (Myxine Glutinosa) And Pacific (Eptatretus Stoutii) Hagfishes, Sarah Schorno, Todd E. Gillis, Douglas S. Fudge

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

Hagfishes are known for their unique defensive slime, which they use toward off gill-breathing predators. Although much is known about the slime cells (gland thread cells and gland mucous cells), little is known about how long slime gland refilling takes, or how slime composition changes with refilling or repeated stimulation of the same gland. Slime glands can be individually electrostimulated to release slime, and this technique was used to measure slime gland refilling times for Atlantic and Pacific hagfish. The amount of exudate produced, the composition of the exudate and the morphometrics of slime cells were analyzed during refilling, and …

Extending Spectrophotometric Pht Measurements In Coastal And Estuarine Environments, Nora Katherine Douglas

USF Tampa Graduate Theses and Dissertations

Nearshore and estuarine environments play a vital role in the cycling of carbon, but the effects of ocean acidification in estuarine waters have not been studied as extensively as in the open ocean. One reason for this is the limitation of pH measurement capabilities in low-salinity waters. Typically, pH in these environments has been measured using potentiometric methods that are subject to uncertainties on the order of 0.01. Spectrophotometric methods for measuring pHT offer precision and accuracy superior to those of potentiometric methods. However, previous characterizations for purified sulfonephthalein indicators, used for marine spectrophotometric measurements, are not applicable to estuarine …

Fisheries Exploitation By Albatross Quantified With Lipid Analysis, Melinda Conners, Chandra Goetsch, Suzanne Budge, William Walker, Yoko Mitani, Daniel Costa, Scott Shaffer

Faculty Publications, Biological Sciences

Mortality from incidental bycatch in longline fishery operations is a global threat to seabird populations, and especially so for the albatross family (Diomedeidae) in which 15 out of 22 species are threatened with extinction. Despite the risks, fisheries remain attractive to many species of seabird by providing access to high-energy foods in the form of discarded fish and offal, target fish, and baited hooks. Current policy regarding fisheries management is increasingly aimed at discard reform, exemplified by a discard ban initiated in the European Union Common Fisheries Policy in 2014. While there is global agreement on the importance of minimizing …

Octopus Resource Of Western Australia Harvest Strategy 2018-2022. Version 1.0, Western Australia. Department Of Primary Industries And Regional Development

Fisheries Management Papers

Harvest strategies for aquatic resources managed by the Western Australian (WA) Department of Primary Industries and Regional Development (DPIRD) are formal documents that are prepared based on a formal policy (Department of Fisheries 2015) to support the decision-making processes and ensure consistency with the principles of Ecologically Sustainable Development (ESD; Fletcher 2002) and Ecosystem Based Fisheries Management (EBFM; Fletcher et al. 2010). The objectives of ESD are reflected in the objects of the Fish Resources Management Act 1994 (FRMA), Section 3, and the Aquatic Resources Management Act (ARMA) 2016, Clause 9, which will replace the FRMA once enacted.

Octopus Resource Of Western Australia Harvest Strategy : 2018 – 2022 : Version 1.0, Department Of Fisheries

Fisheries Management Papers

No abstract provided.

Big Fish, Big Data: Discussing The State Of Salmon And Improving King Salmon Regulation Through A Population Model, Creed Coram 18

Honor Scholar Theses

No abstract provided.

Assessing Trade-Offs In Large Marine Protected Areas, Tammy E. Davies, Graham Epstein, Stacy E. Aguilera, Cassandra M. Brooks, Michael Cox, Louisa S. Evans, Sara M. Maxwell, Mateja Nenadovic, Natalie C. Ban

Biological Sciences Faculty Publications

Large marine protected areas (LMPAs) are increasingly being established and have a high profile in marine conservation. LMPAs are expected to achieve multiple objectives, and because of their size are postulated to avoid trade-offs that are common in smaller MPAs. However, evaluations across multiple outcomes are lacking. We used a systematic approach to code several social and ecological outcomes of 12 LMPAs. We found evidence of three types of trade-offs: trade-offs between different ecological resources (supply trade-offs); trade-offs between ecological resource conditions and the well-being of resource users (supply-demand trade-offs); and trade-offs between the well-being outcomes of different resource users …

Fishery Interaction Modeling Of Cetacean Bycatch In The California Drift Gillnet Fishery To Inform A Dynamic Ocean Management Tool, Nicholas B. Sisson

Biological Sciences Theses & Dissertations

Understanding the drivers that lead to interaction between target species in a fishery and marine mammals is a critical aspect in efforts to reduce bycatch. In the California drift gillnet fishery static management approaches and gear changes have reduced bycatch but neither measure ascertains the underlying dynamics causing bycatch events. To avoid further potentially drastic measures such as hard caps, dynamic management approaches that consider the scales relevant to physical dynamics, animal movement and human use could be implemented. A key component to this approach is determining the factors that lead to fisheries interactions. Using 25 years (1990-2014) of National …

The Effect Of Hypoxia On The Nervous System Of Aplysia Californica, Victor Escalona, Lynne Annette Fieber, Joseph Serafy

2018 Entries

The intertidal zone of California’s Pacific coast is home to the marine snail known as Aplysia californica, an organism that has found use as a model in experiments focused on understanding the basis of learning and memory. Its simple nervous system consisting of easily identifiable neurons, its life span of a year, and a readily-accessed aquacultured source from the National Resource for Aplysia make it an excellent model for ontogenetic, neural, and behavioral studies. Here, however, the focus was on strategies this species uses to survive in an environment rife with risks of hypoxia and desiccation during the tidal …

Synchrony — An Emergent Property Of Recreational Fisheries, Mark A. Kaemingk, Christopher J. Chizinski, Keith Hurley, Kevin L. Pope

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

1. Recreational fisheries are traditionally managed at local scales, but more effective management could be achieved using a cross-scale approach. To do this, we must first understand how local processes scale up to influence landscape patterns between anglers and resources. We highlight how population-based synchrony methods, used in conjunction with a complex-adaptive-systems framework, can reveal emergent spatial properties within social-ecological systems such as recreational fisheries.

2. Herein, we quantified the level of spatial synchrony in angler behaviour, defined the relationship between angler synchrony and distance among waterbodies, and highlighted social-ecological attributes contributing to these patterns. We leveraged a 111 waterbody-year …

Reducing Dietary Protein In Pond Production Of Hybrid Striped Bass (Morone Chrysops × M. Saxatilis): Effects On Fish Performance And Water Quality Dynamics, Steven Rawles, Bartholomew Green, Matthew Mcentire, T. Gibson Gaylord, Frederic T. Barrows

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

In previous work, we demonstrated that diets containing 40% digestible protein (DP) (45% crude protein) and 18% lipid supplemented with Met and Lys resulted in superior performance and nutrient retentions in hybrid striped bass (HSB) compared to less energy-dense diets when rearing HSB at temperatures similar to the summer growing period of the Southern U.S. The current work was aimed at vetting previous results in pond production of market-size HSB at commercial stocking densities to assess impacts on fish production indices and water quality parameters. Diets were formulated to contain digestible protein levels ranging from 41% to 35% DP and …

Chlorophyll Concentration Derived From Microwave Remote Sensing Measurements Using Artificial Neural Network Algorithm, Young-Heon Jo, Dae-Won Kim, Hyuna Kim

Journal of Marine Science and Technology–Taiwan

Ocean color optic remote sensing has been used to estimate various biogeochemical constituents to monitor ocean environmental changes in coastal regions and global open oceans. However, the most problematic issue in utilizing ocean color measurements is cloud coverage. Thus, this study introduces a neural network (NN) algorithm to derive Chlorophyll a (Chl) concentrations, which are unavailable due to the presence of clouds. Because ocean color remote sensing depends on cloud coverage, microwave measurements, including sea-surface temperature, cloud, water vapor, precipitation, and winds, were used as inputs for the NN algorithm. Accordingly, the NN algorithm was designed to predict Chl using …

California Rushes In—Keeping Water Instream For Fisheries Without Federal Law, Paul Stanton Kibel

William & Mary Environmental Law and Policy Review

No abstract provided.

What's Required To Process Seafood - A Briefing Of Requirements, Cindy Borgwordt

Title III Professional Development Reports

What’s Required to Process Seafood – a Briefing of Requirements presented by Cindy Borgwordt, LU Fish Health Specialist, at the 2018 North Central Regional Aquaculture and Missouri Aquaculture Association meeting at Kansas City, Missouri

Summary Of The Stock Structure Information Used For Determining Spatial Management Of The Index Species For The Scalefish Resources Of Northern Western Australia, Daniel J. Gaughan, Stephen J. Newman, Corey B. Wakefield

WA Marine Stewardship Council report series

This paper was specifically developed in response to issues raised in an assessment of the Pilbara Trap Managed Fishery (PTMF) against the fishery sustainability standard of the Marine Stewardship Council (MSC).

Improving Confidence In The Management Of The Blue Swimmer Crab (Portunus Armatus) In Shark Bay Part Ii: Socio-Economic Significance Of Commercial Blue Swimmer Crabs In Shark Bay. Frdc Project No. 2012/15, R Daley, I Van Putten

Fisheries Research Reports

The Shark Bay crab fishery is faced with substantial changes. The fishery reopened in late 2013 after a 18 month closure due to a significant stock decline from adverse environmental conditions. The stock is now recovering and The Department of Fisheries Western Australia (DFWA) has implemented substantial management changes including the introduction of catch quotas to limit the catches of individual fishing businesses and a Total Allowable Commercial Catch (TACC) for the fishery. Fishers are challenged with adapting to the changes in management and inter-annual variability in crab catch volume linked to environmental conditions.

Improving Confidence In The Management Of The Blue Swimmer Crab (Portunus Armatus) In Shark Bay. Part I : Rebuilding Of The Shark Bay Crab Fishery. Frdc Project No. 2012/15, Arani Chandrapavan, Mervi Kangas, Danielle Johnston, Nicolavito Caputi, Alexander Hesp, Ainslie Maree Denham, Errol Sporer

Fisheries Research Reports

This, and the accompanying Part II report, summarise the results of the research activities undertaken on the blue swimmer crab stock in Shark Bay by the Department of Fisheries, Western Australia, which were done in collaboration with commercial fishers, fishery managers and economic analysts between 2012 and 2016.

Improving Confidence In The Management Of The Blue Swimmer Crab (Portunus Armatus) In Shark Bay Part Iii: Proceedings Of The Third National Workshop On Blue Swimmer Crab Portunus Armatus Western Australian Fisheries And Marine Research Laboratories, Hillarys, Perth, 3 – 4 June 2015. Frdc Project No. 2012/15, Arani Chandrapavan

Fisheries Research Reports

The ‘Third National Workshop on Blue Swimmer Crab’ was organised and held at Department of Fisheries (Western Australia) in Hillarys (3-4 June, 2015), almost 15 years after the second workshop in 1997. The workshop brought together fisheries scientists, managers, university researchers, consultants, industry stakeholders and fishers from across Queensland, New South Wales, South Australia, Tasmania and Western Australia and addressed six broad themed sessions;

• State overview of blue swimmer crab commercial fisheries

• Monitoring, stock assessment and harvest strategy

• Environmental drivers and climate change

• Blue swimmer crabs….from the sea to the plate

• Recreational fishing and surveys …