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Full-Text Articles in Aquaculture and Fisheries

Nexus Between Animal Welfare, Environment, And Sustainable Development: Resource Document, Wellbeing International Nov 2022

Nexus Between Animal Welfare, Environment, And Sustainable Development: Resource Document, Wellbeing International

Nexus – UNEP – Animal Welfare, Environment, Sustainable Development

This Resource Document has been developed to explore the Nexus (links) between Animal Welfare, the Environment, and Sustainable Development. The document includes relevant citations and reports addressing the topics encompassed by the Nexus. It will be maintained as a “living document” (subject to revision) in the WellBeing International Studies Repository. The original document and subsequent revisions will be kept in the Repository to provide a record of the changes.


Widespread Exposure Of Marine Parks, Whales, And Whale Sharks To Shipping, Vincent Raoult, Vanessa Pirotta, Troy F. Gaston, Brad Norman, Samanatha Reynolds, Tim M. Smith, Mike Double, Jason How, Matt W. Hayward Nov 2022

Widespread Exposure Of Marine Parks, Whales, And Whale Sharks To Shipping, Vincent Raoult, Vanessa Pirotta, Troy F. Gaston, Brad Norman, Samanatha Reynolds, Tim M. Smith, Mike Double, Jason How, Matt W. Hayward

Fisheries Research Articles

Context: Shipping impacts are a major environmental concern that can affect the behaviour and health of marine mammals and fishes. The potential impacts of shipping within marine parks is rarely considered during the planning process.

Aims: We assessed the areal disturbance footprint of shipping around Australia, its overlap with marine parks, and known locations of megafauna, so as to identify areas of concern that warrant further investigation.

Methods: Automatic Identification System (AIS) shipping data from 2018 to 2021 were interpreted through a kernel-density distribution and compared with satellite data from ∼200 individuals of megafauna amalgamated from 2003 to 2018, and …


Systematic Review And Meta-Analysis Of The Growth Performance And Carcass Composition Of Nile Tilapia (Oreochromis Niloticus) Fed Dietary Copra Meal, Tzodoq Obrero Magbanua, Janice A. Ragaza Nov 2022

Systematic Review And Meta-Analysis Of The Growth Performance And Carcass Composition Of Nile Tilapia (Oreochromis Niloticus) Fed Dietary Copra Meal, Tzodoq Obrero Magbanua, Janice A. Ragaza

Biology Faculty Publications

Introduction

Nile tilapia (Oreochromis niloticus) is one of the most cultured species in the aquaculture industry. However, its market price is affected by the increasing cost of fishmeal. Plant-based proteins are being used to mitigate the problem.

Methodology

This paper comprehensively quantified the growth performance and carcass composition of Nile tilapia fed copra meal via systematic review and meta-analysis. The literature review and paper selection were done based on the preferred reporting items for systematic reviews and meta-analysis method. The data from peer-reviewed papers that qualified from the inclusion screening criteria such as standard error reporting, feeding period, absence of …


Natural Resource System Size Can Be Used For Managing Recreational Use, Derek S. Kane, Kevin L. Pope, Keith D. Koupal, Mark A. Pegg, Christopher J. Chizinski, Mark A. Kaemingk Nov 2022

Natural Resource System Size Can Be Used For Managing Recreational Use, Derek S. Kane, Kevin L. Pope, Keith D. Koupal, Mark A. Pegg, Christopher J. Chizinski, Mark A. Kaemingk

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Outdoor recreation provides societal benefits that are often measured by the amount of use natural resource systems receive. Still, the amount of resource use natural resource systems receive is often unknown or unstudied. Monitoring and quantifying resource use is often logistically difficult and costly but is paramount to optimize societal benefits. Identifying a simple and readily available metric that can indicate the quantity of recreational use of natural resource systems would benefit natural resource management. Using recreational angler participation data during an 11-year study period from 73 public waterbodies in Nebraska, USA, we developed a resource size-use model that demonstrates …


Ecological Risk Assessment For The Western Rock Lobster Resource - Background Information, Jason How, Emma-Jade Tuffley, Rebecca Oliver, Scott Evans, Mathew Hourston, Simon De Lestang Nov 2022

Ecological Risk Assessment For The Western Rock Lobster Resource - Background Information, Jason How, Emma-Jade Tuffley, Rebecca Oliver, Scott Evans, Mathew Hourston, Simon De Lestang

Fisheries Research Reports

In April 2022, the Department of Primary Industries and Regional Development (DPIRD, Department) convened an ecological risk assessment (ERA) of the fisheries that access the Western Rock Lobster Resource (Resource). ERAs are conducted by the Department as part of its Ecosystem Based Fisheries Management (EBFM) framework.

This report provides an overview of the Western Australian (WA) fisheries that access the Resource to support the ERA risk scoring process. The ERA considered the potential ecological impacts of the harvest of the Resource by all sectors, including the commercial fisheries; West Coast Rock Lobster Managed Fishery (WCRLMF) and South Coast Crustacean Managed …


Fish And Invertebrate Community And Trophic Structure In The Gulf Of Mexico Coastal Plains Watersheds Across Varying Hydrologic Connectivity., Erin Elizabeth Thayer Nov 2022

Fish And Invertebrate Community And Trophic Structure In The Gulf Of Mexico Coastal Plains Watersheds Across Varying Hydrologic Connectivity., Erin Elizabeth Thayer

LSU Doctoral Dissertations

Subtropical Northern Gulf of Mexico coastal plains watersheds tend to have mild seasonal temperature, low topography, and fine, mostly homogenous substrate sizes; these watersheds may not follow fish and invertebrate community patterns predicted by established lotic paradigms because those paradigms tend to describe communities in either temperate or tropical regions. However, the bases of most generally accepted lotic paradigms involve evaluation of allochthonous and autochthonous contributions to lotic ecosystems via three hydrologic connectivity dimensions including vertical (hyporheic and shallow groundwater), lateral (floodplain), and longitudinal (upstream and downstream). My dissertation goals were to explore these three dimensions within Louisiana coastal plains …


The Global Menace Of “Abandoned, Lost Or Otherwise Discarded Fishing Gear” (Aldfg) : Best Practice To Manage Aldfg In Ghana’S Fisheries Sector, Linda Bana Oct 2022

The Global Menace Of “Abandoned, Lost Or Otherwise Discarded Fishing Gear” (Aldfg) : Best Practice To Manage Aldfg In Ghana’S Fisheries Sector, Linda Bana

World Maritime University Dissertations

No abstract provided.


Governance Options For High Seas Pockets Of The Western And Central Pacific : A Case Study Of High Seas Pocket 4 Or The North Fiji Basin, Lusiana Ranadi Dalituicama Oct 2022

Governance Options For High Seas Pockets Of The Western And Central Pacific : A Case Study Of High Seas Pocket 4 Or The North Fiji Basin, Lusiana Ranadi Dalituicama

World Maritime University Dissertations

No abstract provided.


Evaluating Enforcement Of Environmental Measures To Fishing Vessels Not Covered By Solas Operating In Antarctic Waters, Manuel Alejandro Fuenzalida Lopez Oct 2022

Evaluating Enforcement Of Environmental Measures To Fishing Vessels Not Covered By Solas Operating In Antarctic Waters, Manuel Alejandro Fuenzalida Lopez

World Maritime University Dissertations

No abstract provided.


Addressing Illegal, Unreported, Unregulated (Iuu) Fishing In Cambodia : The Impact Of The Eu’S Iuu Regulation, Sorphea Sok Oct 2022

Addressing Illegal, Unreported, Unregulated (Iuu) Fishing In Cambodia : The Impact Of The Eu’S Iuu Regulation, Sorphea Sok

World Maritime University Dissertations

No abstract provided.


Effectiveness Of Catch Documentation Schemes In Ghana’S Fisheries And Their Role In Deterring Iuu Fishing, Misornu Yaw Logo Oct 2022

Effectiveness Of Catch Documentation Schemes In Ghana’S Fisheries And Their Role In Deterring Iuu Fishing, Misornu Yaw Logo

World Maritime University Dissertations

No abstract provided.


Examining How Ghana's Co-Management Policy Could Tackle Iuu Fishing In The Artisanal Fisheries Sector, Ambrose Yankee Oct 2022

Examining How Ghana's Co-Management Policy Could Tackle Iuu Fishing In The Artisanal Fisheries Sector, Ambrose Yankee

World Maritime University Dissertations

No abstract provided.


Assessing The Effectiveness Of Namibian Fisheries Management For Sustainable Development : A Case Study Of Hake, Monk, And Horse Mackerel Fisheries, Suama Namulilo Mundjego Oct 2022

Assessing The Effectiveness Of Namibian Fisheries Management For Sustainable Development : A Case Study Of Hake, Monk, And Horse Mackerel Fisheries, Suama Namulilo Mundjego

World Maritime University Dissertations

No abstract provided.


Implementation Of The Port State Measure Agreement (Psma) To Combat Iuu Fishing In The Philippines, Marilyn Labasan Jaal Oct 2022

Implementation Of The Port State Measure Agreement (Psma) To Combat Iuu Fishing In The Philippines, Marilyn Labasan Jaal

World Maritime University Dissertations

No abstract provided.


List Of Fish Species Present In Galápagos, Ecuador, And California, U.S.A., With Notes On Their Commercial Importance And Conservation Status, Erin J. Hanson, Jose R. Marin Jarrin Oct 2022

List Of Fish Species Present In Galápagos, Ecuador, And California, U.S.A., With Notes On Their Commercial Importance And Conservation Status, Erin J. Hanson, Jose R. Marin Jarrin

IdeaFest: Interdisciplinary Journal of Creative Works and Research from Cal Poly Humboldt

No abstract provided.


Smart Drumlines Ineffective In Catching White Sharks In The High Energy Capes Region Of Western Australia: Acoustic Detections Confirm That Sharks Are Not Always Amenable To Capture, Stephen M. Taylor, Jason How, Michael J. Travers, Stephen J. Newman, Silas Mountford, Daniela Waltrick, Christopher E. Dowling, Ainslie M. Denham, Daniel J. Gaughan Oct 2022

Smart Drumlines Ineffective In Catching White Sharks In The High Energy Capes Region Of Western Australia: Acoustic Detections Confirm That Sharks Are Not Always Amenable To Capture, Stephen M. Taylor, Jason How, Michael J. Travers, Stephen J. Newman, Silas Mountford, Daniela Waltrick, Christopher E. Dowling, Ainslie M. Denham, Daniel J. Gaughan

Fisheries Research Articles

The management of human-shark interactions can benefit from the implementation of effective shark hazard mitigation measures. A Shark-Management-Alert-in-Real-Time (SMART) drumline trial in the Capes region of Western Australia was instigated after several serious incidents involving surfers and white sharks (Carcharodon carcharias). The project aimed to determine whether white sharks (target species), which were relocated after capture, remained offshore using satellite and acoustic tagging. Over a 27-month period, 352 fish were caught, 55% of which comprised tiger sharks (Galeocerdo cuvier). Ninety-one percent of animals were released alive in good condition. Only two white sharks were caught; both were relocated ≥ 1 …


Recommendations For Establishing A Market For Invasive Green Crabs In New England, Eve Fischer, Jesse Minor, Marissa Mcmahan Oct 2022

Recommendations For Establishing A Market For Invasive Green Crabs In New England, Eve Fischer, Jesse Minor, Marissa Mcmahan

Student Scholarship

Green crabs are one of the most invasive marine species in the world. Their populations in New England have grown significantly due to climate change, increasing their environmental and socioeconomic impacts. Green crabs are voracious predators of soft shell clams, and have had a detrimental impact on the region’s valuable clam fisheries. They also prey on juvenile lobsters and other shellfish and compete with native crab species for resources. Green crabs burrow into and damage eelgrass beds, which are a vital habitat for many marine species and an important “blue carbon” sink. Due to their rapid rate of reproduction as …


Boat-Based Recreational Fishing In Western Australia 2020/21, Karina L. Ryan, Eva Km Lai Dpird, Claire B. Smallwood Oct 2022

Boat-Based Recreational Fishing In Western Australia 2020/21, Karina L. Ryan, Eva Km Lai Dpird, Claire B. Smallwood

Fisheries Research Reports

The integrated surveys of boat-based recreational fishing include three components: (i) off-site Phone Surveys (encompassing an initial Screening Survey, a longitudinal Phone-Diary Survey, and Post-Enumeration Surveys); (ii) on-site Boat Ramp Surveys; and (iii) Remote Camera Surveys. The main data collection period from September 2020 to August 2021 (inclusive) provides comparisons with previous surveys in 2017/18 (September 2017 to August 2018), 2015/16 (September 2015 to August 2016), 2013/14 (May 2013 to April 2014) and 2011/12 (March 2011 to February 2012). A total of 3,044 fishers completed the Phone-Diary Survey with 206,230 individual fish (including invertebrates) caught (kept or released) by fishers …


Recreational Fishing For Western Rock Lobster: Estimates Of Participation, Effort And Catch In 2021/22, Claire B. Smallwood, Karina L. Ryan, Alissa C. Tate, Lucy J. Rudd Oct 2022

Recreational Fishing For Western Rock Lobster: Estimates Of Participation, Effort And Catch In 2021/22, Claire B. Smallwood, Karina L. Ryan, Alissa C. Tate, Lucy J. Rudd

Fisheries Research Reports

The Western Rock Lobster (WRL) (Panulirus cygnus) is the most commonly caught Rock Lobster (RL) species in Western Australia. Catches from the commercial and recreational sectors are required to determine and monitor Total Allowable Commercial Catch (TACC), Total Allowable Recreational Catch (TARC) and proportion of Allowable Harvest Level (AHL) achieved. The TARC is set at 5% of the AHL and evaluated in the harvest strategy based on a 5-year average. Since 2018/19, data for the recreational sector have been collected using phone- recall surveys to provide estimates of participation, fishing effort and retained catch (by numbers) from recreational fishers who …


Ractopamine At The Center Of Decades-Long Scientific And Legal Disputes: A Lesson On Benefits, Safety Issues, And Conflicts, Kumail Abbas, Aqeel Raza, Ross D. Vasquez, Marri Jmelou M. Roldan, Nemi Malhotra, Jong-Chin Huang, Olivia Erin M. Buenafe, Kelvin H. -C Chen, Shin-Shin Liang, Chung-Der Hsiao Sep 2022

Ractopamine At The Center Of Decades-Long Scientific And Legal Disputes: A Lesson On Benefits, Safety Issues, And Conflicts, Kumail Abbas, Aqeel Raza, Ross D. Vasquez, Marri Jmelou M. Roldan, Nemi Malhotra, Jong-Chin Huang, Olivia Erin M. Buenafe, Kelvin H. -C Chen, Shin-Shin Liang, Chung-Der Hsiao

Chemistry Faculty Publications

Ractopamine (RAC) is a synthetic phenethanolamine, β–adrenergic agonist used as a feed additive to develop leanness and increase feed conversion efficiency in different farm animals. While RAC has been authorized as a feed additive for pigs and cattle in a limited number of countries, a great majority of jurisdictions, including the European Union (EU), China, Russia, and Taiwan, have banned its use on safety grounds. RAC has been under long scientific and political discussion as a controversial antibiotic as a feed additive. Here, we will present significant information on RAC regarding its application, detection methods, conflicts, and legal divisions that …


Shore-Based Recreational Fishing In The Perth Metropolitan Area: 2022, Alissa Tate, Lucy Rudd, Claire B. Smallwood Sep 2022

Shore-Based Recreational Fishing In The Perth Metropolitan Area: 2022, Alissa Tate, Lucy Rudd, Claire B. Smallwood

Fisheries Research Reports

Recreational fishing is a popular activity in Western Australia (WA), occurring throughout the state from boats, and from a variety of natural and man-made structures along the shore. Ongoing monitoring of the shore-based recreational fishery is essential to assist with resource allocation, management evaluation and stock assessments for nearshore species. Especially for species such as Australian Herring and Southern Garfish which had management changes including a reduction in bag limit from 30 to 12 in 2015 and closure of Perth Metropolitan waters in 2017, respectively. An on-site roving creel survey to collect effort and catch data from shore fishers has …


Zoned Leasing Impact On Shellfish Aquaculture Industry Development, Rebekah Woodburn Sep 2022

Zoned Leasing Impact On Shellfish Aquaculture Industry Development, Rebekah Woodburn

All Theses And Dissertations

Shellfish aquaculture is a growing industry in the United States that supports many individuals and communities. An important step in establishing or growing a shellfish aquaculture operation is obtaining a lease in which to cultivate shellfish. While many states allow aquaculturists to find their own lease location, the often time-intensive and expensive process to have the lease approved and permitted can be a great barrier for new entrants to the industry. Zoned leasing is a way for state agencies to establish large areas and pre-approve them for shellfish aquaculture, then divide the areas into smaller parcels of leases to be …


Characterizing Habitat Suitability For Gulf Sturgeon (Acipenser Oxyrinchus Desotoi) In Southern Louisiana, Jenna N. Brogdon Aug 2022

Characterizing Habitat Suitability For Gulf Sturgeon (Acipenser Oxyrinchus Desotoi) In Southern Louisiana, Jenna N. Brogdon

LSU Master's Theses

A generalized additive modeling (GAM) framework was used to characterize fish-habitat relationships and develop habitat suitability maps to predict spatiotemporal and ontogenetic shifts in Gulf sturgeon distribution within an impacted estuary in the northern Gulf of Mexico, Lake Pontchartrain. Gulf sturgeon (n = 103) were fitted with acoustic transmitters in the Pearl River during the early summer and fall from 2013 to 2018, and an array of acoustic receivers (n = 81) was used to monitor Gulf sturgeon habitat use and movement in the estuary from 2016 to 2019. Daily presence data from the telemetry array were paired with environmental …


The Effects Of Moderate And High Temperatures On Growth, Metabolism, And Blood-Oxygen Affinity In Ictalurus Spp., Brandon Gerhart Aug 2022

The Effects Of Moderate And High Temperatures On Growth, Metabolism, And Blood-Oxygen Affinity In Ictalurus Spp., Brandon Gerhart

Theses and Dissertations

Despite the growing use of hybrid catfish (Ictalurus furcatus × I. punctatus) in aquaculture, few studies have investigated the comparative effects of temperature on physiological performance with other cultured catfish. Therefore, growth, metabolism, and blood-oxygen affinity of blue (I. furcatus), channel (I. punctatus), and hybrid catfish were compared at moderate (23°C) and high (33°C) water temperatures. Channel catfish had the greatest growth and were in better condition compared to blue and hybrid catfish. Hybrid catfish standard metabolic rates did not differ from blue or channel catfish, while hybrid catfish had higher maximum metabolic rates, …


Effects Of Temperature On Growth, Metabolic Rate, And Lower Dissolved Oxygen Tolerance Of Speckled Peacock Bass Cichla Temensis, Manuel E. Coffill-Rivera Aug 2022

Effects Of Temperature On Growth, Metabolic Rate, And Lower Dissolved Oxygen Tolerance Of Speckled Peacock Bass Cichla Temensis, Manuel E. Coffill-Rivera

Theses and Dissertations

I examined the effects of temperature (25, 30, and 35°C) on growth, standard metabolic rate (SMR), and lower dissolved oxygen tolerance (LDOT) of juvenile Speckled Peacock Bass Cichla temensis. Fish were acclimated to 150-L aquaria for 7 weeks before the growth, SMR, and LDOT experiments. The growth study lasted 58 days and fish acclimated to 25 and 30°C displayed similar growth rates, while fish acclimated to 35°C had very poor growth rates. The SMR and LDOT experiments were performed using intermittent respirometers. Fish acclimated to 25°C had the lowest SMR, followed by 30°C, and finally 35°C. The highest LDOT …


Low Levels Of Hybridization Between Sympatric Cold-Water-Adapted Arctic Cod And Polar Cod In The Beaufort Sea Confirm Genetic Distinctiveness, Robert E. Wilson, Sarah A. Sonsthagen, Philip Lavretsky, Andrew Majewski, Einar Árnason, Katrín Halldórsdóttir, Axel W. Einarsson, Kate Wedemeyer, Sandra L. Talbot Aug 2022

Low Levels Of Hybridization Between Sympatric Cold-Water-Adapted Arctic Cod And Polar Cod In The Beaufort Sea Confirm Genetic Distinctiveness, Robert E. Wilson, Sarah A. Sonsthagen, Philip Lavretsky, Andrew Majewski, Einar Árnason, Katrín Halldórsdóttir, Axel W. Einarsson, Kate Wedemeyer, Sandra L. Talbot

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

As marine ecosystems respond to climate change and other stressors, it is necessary to evaluate current and past hybridization events to gain insight on the outcomes and drivers of such events. Ancestral introgression within the gadids has been suggested to allow cod to inhabit a variety of habitats. Little attention has been given to contemporary hybridization, especially within cold-water-adapted cod (Boreogadus saida Lepechin, 1774 and Arctogadus glacialis Peters, 1872). We used whole-genome, restriction-site associated, and mitochondrial sequence data to explore the degree and direction of hybridization between these species where previous hybridization had not been reported. Although nearly identical …


Are Sharks Attracted To Caged Fish And Associated Infrastructure?, Charlie Huveneers, Yuri Niella, Michael Drew, Joshua Dennis, Thomas M. Clarke, Alison Wright, Simon Bryars, Matias Braccini, Chris Dowling, Stephen J. Newman, Paul Butcher, Scott Dalton Jul 2022

Are Sharks Attracted To Caged Fish And Associated Infrastructure?, Charlie Huveneers, Yuri Niella, Michael Drew, Joshua Dennis, Thomas M. Clarke, Alison Wright, Simon Bryars, Matias Braccini, Chris Dowling, Stephen J. Newman, Paul Butcher, Scott Dalton

Fisheries Research Articles

Huveneers Charlie, Niella Yuri, Drew Michael, Dennis Joshua, Clarke Thomas M., Wright Alison, Bryars Simon, Braccini Matias, Dowling Chris, Newman Stephen J., Butcher Paul, Dalton Scott (2022) Are sharks attracted to caged fish and associated infrastructure?. Marine and Freshwater Research 73, 1404-1410.

https://doi.org/10.1071/MF22039


Nabat Ml: Utilizing Deep Learning To Enable Crowdsourced Development Of Automated, Scalable Solutions For Documenting North American Bat Populations, Ali Khalighifar, Benjamin S. Gotthold, Erin Adams, Jenny Barnett, Laura O. Beard, Eric R. Britzke, Paul A. Burger, Kimberly Chase, Zackary Cordes, Paul M. Cryan, Emily Emily, Christopher T. Fill, Scott E. Gibson, G. Scott Haulton, Kathryn M. Irvine, Lara S. Katz, William L. Kendall, Christen A. Long, Oisin Mac Aodha, Tessa Mcburney, Sara Mccarthy, Matthew W. Mckown, Joy O'Keefe, Lucy D. Patterson, Kristopher A. Pitcher, Matthew Rustand, Jordi L. Segers, Kyle Seppanen, Jeremy L. Siemers, Christian Stratton, Bethany R. Straw, Theodore J. Weller, Brian E. Reichert Jul 2022

Nabat Ml: Utilizing Deep Learning To Enable Crowdsourced Development Of Automated, Scalable Solutions For Documenting North American Bat Populations, Ali Khalighifar, Benjamin S. Gotthold, Erin Adams, Jenny Barnett, Laura O. Beard, Eric R. Britzke, Paul A. Burger, Kimberly Chase, Zackary Cordes, Paul M. Cryan, Emily Emily, Christopher T. Fill, Scott E. Gibson, G. Scott Haulton, Kathryn M. Irvine, Lara S. Katz, William L. Kendall, Christen A. Long, Oisin Mac Aodha, Tessa Mcburney, Sara Mccarthy, Matthew W. Mckown, Joy O'Keefe, Lucy D. Patterson, Kristopher A. Pitcher, Matthew Rustand, Jordi L. Segers, Kyle Seppanen, Jeremy L. Siemers, Christian Stratton, Bethany R. Straw, Theodore J. Weller, Brian E. Reichert

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

  1. Bats play crucial ecological roles and provide valuable ecosystem services, yet many populations face serious threats from various ecological disturbances. The North American Bat Monitoring Program (NABat) aims to use its technology infrastructure to assess status and trends of bat populations, while developing innovative and community-driven conservation solutions.

  2. Here, we present NABat ML, an automated machine-learning algorithm that improves the scalability and scientific transparency of NABat acoustic monitoring. This model combines signal processing techniques and convolutional neural networks (CNNs) to detect and classify recorded bat echolocation calls. We developed our CNN model with internet-based computing resources (‘cloud environment’), and …


Using Dietary Additives To Improve Palatability Of Diets Containing Single‐Cell Protein From Methanotrophic Bacteria In Yellowtail Kingfish (Seriola Lalandi) Diets, Luke Pilmer, Lindsey Woolley, Alan J. Lymbery, Michael Salini, Gavin Partridge Jul 2022

Using Dietary Additives To Improve Palatability Of Diets Containing Single‐Cell Protein From Methanotrophic Bacteria In Yellowtail Kingfish (Seriola Lalandi) Diets, Luke Pilmer, Lindsey Woolley, Alan J. Lymbery, Michael Salini, Gavin Partridge

Fisheries Research Articles

Single-cell protein (SCP) derived from methanotrophic bacteria has significant potential as a fishmeal alternative in aquafeeds. However, SCP has known palatability issues, to overcome these issues tuna hydrolysate and garlic powder were tested as palatability enhancers against basal diets without these additives. This study tested the inclusion of SCP at four dietary levels of 0%, 10%, 20% and 30%, representing 0%, 25%, 50% and 75% fishmeal replacement in juvenile yellowtail kingfish (Seriola lalandi) (YTK) diets. YTK were fed these diets in triplicate over 35 days. Compared with the control diet, fish fed the SCP10% diet ate less feed, …


The Ddt-Induced Decline Influenced Genetic Diversity In Naturally Recovered Peregrine Falcons (Falco Peregrinus) Nesting Within The Alaska Arctic And Eastern Interior, Sarah A. Sonsthagen,, Ted Swem, Skip Ambrose, Melanie J. Flamme, Clayton M. White, George K. Sage, Sandra L. Talbot Jun 2022

The Ddt-Induced Decline Influenced Genetic Diversity In Naturally Recovered Peregrine Falcons (Falco Peregrinus) Nesting Within The Alaska Arctic And Eastern Interior, Sarah A. Sonsthagen,, Ted Swem, Skip Ambrose, Melanie J. Flamme, Clayton M. White, George K. Sage, Sandra L. Talbot

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

We assessed the influence of the severe mid-20th century population decline on genetic diversity in nonaugmented Peregrine Falcon Falco peregrinus populations nesting within the Alaska Arctic and eastern Interior. Microsatellite and mitochondrial DNA (mtDNA) data were analysed for Peregrine Falcons sampled from three periods: pre-decline, decline and post-decline. The influence of the decline on genetic diversity differed between the two locales. The Alaska Arctic was characterized by shifts in mtDNA haplotype frequencies, increased inbreeding coefficient, reduction in effective population size and increase in private haplotypes, and a signature of post-decline population growth was detected; by contrast, the eastern Interior showed …