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Articles 91 - 120 of 4753
Full-Text Articles in Aquaculture and Fisheries
Detection Of Toxins And Harmful Algal Bloom Cells In Shellfish Hatcheries And Efforts Toward Removal, Marta P. Sanderson, Karen Hudson, Lauren Gregg, Amanda Chesler-Poole, Ja M. Small, Kimberly S. Reece, Ryan Carnegie, Juliette L. Smith
Detection Of Toxins And Harmful Algal Bloom Cells In Shellfish Hatcheries And Efforts Toward Removal, Marta P. Sanderson, Karen Hudson, Lauren Gregg, Amanda Chesler-Poole, Ja M. Small, Kimberly S. Reece, Ryan Carnegie, Juliette L. Smith
VIMS Articles
As the start of the supply chain for the aquaculture industry, hatcheries are a crucial component in the success of oyster and northern quahog (hard clam) aquaculture on the East Coast of the US. Intermittent failures in hatchery production slow industry growth and reduce profits. To begin investigations into the possible role of algal toxins in hatchery production failure, post-treatment hatchery water from one research and four commercial hatcheries in lower Chesapeake Bay, USA, was sampled for (1) toxin presence and (2) harmful algal bloom (HAB) cell enumeration. Overall, seven toxin classes, likely produced by six different HAB species, were …
Integrating Human Dimensions In Decadal-Scale Prediction For Marine Social Ecological Systems: Lighting The Grey Zone, Jess Melbourne-Thomas, Desiree Tommasi, Marion Gehlen, Eugene J. Murphy, Jennifer Beckensteiner, Francisco Bravo, Tyler D. Eddy, Mibu Fischer, Elizabeth Fulton, Mayya Gogina, Eileen Hofmann, Maya Ito, Sara Mynott, Kelly Ortega-Cisneros, Anna N. Osiecka, Mark R. Payne, Romeo Saldívar-Lucio, Kim J.N. Scherrer
Integrating Human Dimensions In Decadal-Scale Prediction For Marine Social Ecological Systems: Lighting The Grey Zone, Jess Melbourne-Thomas, Desiree Tommasi, Marion Gehlen, Eugene J. Murphy, Jennifer Beckensteiner, Francisco Bravo, Tyler D. Eddy, Mibu Fischer, Elizabeth Fulton, Mayya Gogina, Eileen Hofmann, Maya Ito, Sara Mynott, Kelly Ortega-Cisneros, Anna N. Osiecka, Mark R. Payne, Romeo Saldívar-Lucio, Kim J.N. Scherrer
CCPO Publications
The dynamics of marine systems at decadal scales are notoriously hard to predict-hence references to this timescale as the "grey zone" for ocean prediction. Nevertheless, decadal-scale prediction is a rapidly developing field with an increasing number of applications to help guide ocean stewardship and sustainable use of marine environments. Such predictions can provide industry and managers with information more suited to support planning and management over strategic timeframes, as compared to seasonal forecasts or long-term (century-scale) predictions. The most significant advances in capability for decadal-scale prediction over recent years have been for ocean physics and biogeochemistry, with some notable advances …
Potential Repercussions Of Offshore Wind Energy Development In The Northeast United States For The Atlantic Surfclam Survey And Population Assessment, Sarah Borsetti, Daphne M. Munroe, Andrew M. Scheld, Eric N. Powell, John M. Klinck, Eileen E. Hofmann
Potential Repercussions Of Offshore Wind Energy Development In The Northeast United States For The Atlantic Surfclam Survey And Population Assessment, Sarah Borsetti, Daphne M. Munroe, Andrew M. Scheld, Eric N. Powell, John M. Klinck, Eileen E. Hofmann
CCPO Publications
The Atlantic surfclam Spisula solidissima fishery, which spans the U.S. Northeast continental shelf, is among the most exposed to offshore wind energy development impacts because of the overlap of fishing grounds with wind energy lease areas, the hydraulic dredges used by the fishing vessels, and the location of vessel home ports relative to the fishing grounds. The Atlantic surfclam federal assessment survey is conducted using a commercial fishing vessel in locations that overlap with the offshore wind energy development. Once wind energy turbines, cables, and scour protection are installed, survey operations within wind energy lease areas may be curtailed or …
Interactive Effects Of Climate Change-Induced Range Shifts And Wind Energy Development On Future Economic Conditions Of The Atlantic Surfclam Fishery, Stephanie Stromp, Andrew M. Scheld, John M. Klinck, Daphne M. Munroe, Eric N. Powell, Roger Mann, Sarah Borsetti, Eileen E. Hofmann
Interactive Effects Of Climate Change-Induced Range Shifts And Wind Energy Development On Future Economic Conditions Of The Atlantic Surfclam Fishery, Stephanie Stromp, Andrew M. Scheld, John M. Klinck, Daphne M. Munroe, Eric N. Powell, Roger Mann, Sarah Borsetti, Eileen E. Hofmann
CCPO Publications
Rising water temperatures along the northeastern U.S. continental shelf have resulted in an offshore range shift of the Atlantic surfclam Spisula solidissima to waters still occupied by ocean quahogs Arctica islandica. Fishers presently are prohibited from landing both Atlantic surfclams and ocean quahogs in the same catch, thus limiting fishing to locations where the target species can be sorted on deck. Wind energy development on and around the fishing grounds will further restrict the fishery. A spatially explicit model of the Atlantic surfclam fishery (Spatially Explicit Fishery Economics Simulator) has the ability to simulate the consequences of fishery displacement …
A Growth Model For Arctica Islandica: The Performance Of Tanaka And The Temptation Of Von Bertalanffy—Can The Two Coexist?, John M. Klinck, Eric N. Powell, Kathleen M. Hemeon, Jillian R. Sower, Daniel R. Hennen
A Growth Model For Arctica Islandica: The Performance Of Tanaka And The Temptation Of Von Bertalanffy—Can The Two Coexist?, John M. Klinck, Eric N. Powell, Kathleen M. Hemeon, Jillian R. Sower, Daniel R. Hennen
CCPO Publications
Organisms increase in size over time (age) due to excess assimilation over metabolic (respiration) energy demands. Most organisms reach a maximum size with increasing age as gain and loss balance. The von Bertalanffy length-at-age relationship, which is commonly used in fishery assessment calculations, imposes such a maximum size. However, some fished species, such as ocean quahogs, Arctica islandica, are long lived and continue to grow at old age. The Tanaka age-at-length relationship has continued growth at old age, but is rarely used in stock assessment models. A modified form of the von Bertalanffy model is presented, which mimics the …
Diets Of Invasive Channel Catfish Are Subsidized By Invasive Riparian Trees, Christopher A. Cheek, Brandon K. Peoples, Reuben R. Goforth
Diets Of Invasive Channel Catfish Are Subsidized By Invasive Riparian Trees, Christopher A. Cheek, Brandon K. Peoples, Reuben R. Goforth
Natural Resource Management Faculty Publications
Russian olive (Elaeagnus angustifolia) is an invasive, fruit- bearing riparian tree that dominates riparian zones of the San Juan River in the southwestern United States. Previous research in this river suggests olive fruit is common in diets of invasive channel catfish (Ictalurus punctatus), but its energetic importance is unknown (i.e. critical for catfish fitness vs. incidental consumption). We assessed Russian olive consumption in channel catfish diets bimonthly for 1 year, hypothesizing that olive consumption would be greatest during periods of high olive availability and low benthic aquatic invertebrate availability. We found that catfish consumed olive fruit throughout the year and …
The Southern Ocean Ecosystem Affects The Entire World, Eugene J. Murphy, Nadine M. Johnston, Eileen E. Hofmann, Richard A. Phillips, Jennifer E. Jackson, Andrew J. Constable
The Southern Ocean Ecosystem Affects The Entire World, Eugene J. Murphy, Nadine M. Johnston, Eileen E. Hofmann, Richard A. Phillips, Jennifer E. Jackson, Andrew J. Constable
CCPO Publications
The Southern Ocean, which flows around the Antarctic continent, is home to vast numbers of unique and remarkable animals, including penguins, albatrosses, petrels, seals, and whales. The ocean bursts into life every spring, fueling a summer feeding and breeding frenzy. During the dark winter months, there is little food and life is very harsh. Human activities such as fishing and pollution are affecting this ecosystem, as is climate change. These ecosystem changes matter beyond the Southern Ocean! Ocean currents carry nutrients and organisms into and out of the Southern Ocean. Many marine mammals and seabirds swim or fly in and …
Landings, Vol. 31, No. 1, Maine Lobstermen’S Community Alliance, Patrice Mccarron, Alexa Dayton, Togue Brawn, Dustin Delano, Steven Dickens, Ann Backus, Melissa Waterman
Landings, Vol. 31, No. 1, Maine Lobstermen’S Community Alliance, Patrice Mccarron, Alexa Dayton, Togue Brawn, Dustin Delano, Steven Dickens, Ann Backus, Melissa Waterman
Landings: News & Views from Maine's Lobstering Community
Landings content emphasizes science, history, resource sustainability, economic development, and human interest stories related to Maine's lobster industry. The newsletter emphasizes lobstering as a traditional, majority-European American lifeway with an economic and social heritage unique to the coast of Maine. The publication focuses how ongoing research to engage in sustainable, non-harmful, and non-wasteful commercial fishing practices benefit both the fishery and Maine's coastal legacy.
For more information, please visit the Maine Lobstermen’s Community Alliance (MLCA) website.
Ancient Bears Provide Insights Into Pleistocene Ice Age Refugia In Southeast Alaska, Flavio Augusto Da Silva Coelho, Stephanie Gill, Crystal M. Tomlin, Marilena Papavassiliou, Sean D. Farley, Joseph A. Cook, Sarah A. Sonsthagen, George K. Sage, Timothy H. Heaton, Sandra L. Talbot, Charlotte Lindqvist
Ancient Bears Provide Insights Into Pleistocene Ice Age Refugia In Southeast Alaska, Flavio Augusto Da Silva Coelho, Stephanie Gill, Crystal M. Tomlin, Marilena Papavassiliou, Sean D. Farley, Joseph A. Cook, Sarah A. Sonsthagen, George K. Sage, Timothy H. Heaton, Sandra L. Talbot, Charlotte Lindqvist
Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications
During the Late Pleistocene, major parts of North America were periodically covered by ice sheets. However, there are still questions about whether ice-free refugia were present in the Alexander Archipelago along the Southeast (SE) Alaska coast during the last glacial maximum (LGM). Numerous subfossils have been recovered from caves in SE Alaska, including American black (Ursus americanus) and brown (U. arctos) bears, which today are found in the Alexander Archipelago but are genetically distinct from mainland bear populations. Hence, these bear species offer an ideal system to investigate long-term occupation, potential refugial survival and lineage turnover. Here, we present genetic …
Biodiversity Of Philippine Marine Fishes: A Dna Barcode Reference Library Based On Voucher Specimens, Katherine E. Bemis, Matthew G. Girard, Mudjekeewis D. Santos, Kent E. Carpenter, Jonathan R. Deeds, Diane E. Pitassy, Nicko Amor L. Flores, Elizabeth S. Hunter, Amy C. Driskell, Kenneth S. Macdonald Iii, Lee A. Weigt, Jeffrey T. Williams
Biodiversity Of Philippine Marine Fishes: A Dna Barcode Reference Library Based On Voucher Specimens, Katherine E. Bemis, Matthew G. Girard, Mudjekeewis D. Santos, Kent E. Carpenter, Jonathan R. Deeds, Diane E. Pitassy, Nicko Amor L. Flores, Elizabeth S. Hunter, Amy C. Driskell, Kenneth S. Macdonald Iii, Lee A. Weigt, Jeffrey T. Williams
Biological Sciences Faculty Publications
Accurate identification of fishes is essential for understanding their biology and to ensure food safety for consumers. DNA barcoding is an important tool because it can verify identifications of both whole and processed fishes that have had key morphological characters removed (e.g., filets, fish meal); however, DNA reference libraries are incomplete, and public repositories for sequence data contain incorrectly identified sequences. During a nine-year sampling program in the Philippines, a global biodiversity hotspot for marine fishes, we developed a verified reference library of cytochrome c oxidase subunit I (COI) sequences for 2,525 specimens representing 984 species. Specimens were primarily purchased …
Marine Heatwaves Modulate The Genotypic And Physiological Responses Of Reef-Building Corals To Subsequent Heat Stress, Kristen T. Brown, Amatzia Genin, Matheus A. Mello-Athayde, Ellie Bergstrom, Adriana Campili, Aaron Chai, Sophie G. Dove, Maureen Ho, Devin Rowell, Eugenia M. Sampayo, Veronica Z. Radice
Marine Heatwaves Modulate The Genotypic And Physiological Responses Of Reef-Building Corals To Subsequent Heat Stress, Kristen T. Brown, Amatzia Genin, Matheus A. Mello-Athayde, Ellie Bergstrom, Adriana Campili, Aaron Chai, Sophie G. Dove, Maureen Ho, Devin Rowell, Eugenia M. Sampayo, Veronica Z. Radice
Biological Sciences Faculty Publications
Back-to-back marine heatwaves in 2016 and 2017 resulted in severe coral bleaching and mortality across the Great Barrier Reef (GBR). Encouragingly, some corals that survived these events exhibit increased bleaching resistance and may represent thermally tolerant populations that can better cope with ocean warming. Using the GBR as a natural laboratory, we investigated whether a history of minimal (Heron Island) or severe (Lizard Island) coral bleaching in 2016 and 2017 equates to stress tolerance in a successive heatwave (2020). We examined the genetic diversity, physiological performance, and trophic plasticity of juvenile (<10 cm) and adult (>25 cm) corals of two common genera ( …10>
Hard-Bottom Habitats Support Commercially Important Fish Species: A Systematic Review For The North Atlantic Ocean And Baltic Sea, Hugo Flávio, Rochelle D. Seitz, David Eggleston, Jon C. Svendsen, Josianne Støttrup
Hard-Bottom Habitats Support Commercially Important Fish Species: A Systematic Review For The North Atlantic Ocean And Baltic Sea, Hugo Flávio, Rochelle D. Seitz, David Eggleston, Jon C. Svendsen, Josianne Støttrup
VIMS Articles
Hard-bottom habitats span a range of natural substrates (e.g., boulders, cobble) and artificial habitats (e.g., the base of wind turbines, oil platforms). These hard-bottom habitats can provide a variety of ecosystem services, ranging from the enhancement of fish biomass and production to providing erosion control. Management decisions regarding the construction or fate of hard-bottom habitats require information on the ecological functions of these habitats, particularly for species targeted in ecosystem-based fisheries management. This study provides a systematic review of the relationships of various hard-bottom habitats to individual commercially harvested species that are managed jointly across the Atlantic by the International …
Fitting Time Series Models To Fisheries Data To Ascertain Age, Kathleen S. Kirch, Norou Diawara, Cynthia M. Jones
Fitting Time Series Models To Fisheries Data To Ascertain Age, Kathleen S. Kirch, Norou Diawara, Cynthia M. Jones
OES Faculty Publications
The ability of government agencies to assign accurate ages of fish is important to fisheries management. Accurate ageing allows for most reliable age-based models to be used to support sustainability and maximize economic benefit. Assigning age relies on validating putative annual marks by evaluating accretional material laid down in patterns in fish ear bones, typically by marginal increment analysis. These patterns often take the shape of a sawtooth wave with an abrupt drop in accretion yearly to form an annual band and are typically validated qualitatively. Researchers have shown key interest in modeling marginal increments to verify the marks do, …
[Draft] Evaluating Recruitment Of American Eel, Anguilla Rostrata, In The Potomac River, 2023, Troy D. Tuckey, Mary C. Fabrizio
[Draft] Evaluating Recruitment Of American Eel, Anguilla Rostrata, In The Potomac River, 2023, Troy D. Tuckey, Mary C. Fabrizio
Reports
No abstract provided.
Growth And Whole-Body Proximate Composition Of Oreochromis Niloticus Nile Tilapia Fed Pea Meal: A Systematic Review And Meta-Analysis, Tzodoq Obrero Magbanua, Janice A. Ragaza
Growth And Whole-Body Proximate Composition Of Oreochromis Niloticus Nile Tilapia Fed Pea Meal: A Systematic Review And Meta-Analysis, Tzodoq Obrero Magbanua, Janice A. Ragaza
Biology Faculty Publications
One of the most widely cultivated species in the aquaculture sector is the Nile tilapia (Oreochromis niloticus). However, the rising price of fishmeal has a huge impact on its market value. Proteins derived from plants have been used to address the issue. In this study, systematic review and meta-analysis were used to quantitatively analyze the whole-body composition and growth of Nile tilapia fed pea meal. Based on the preferred reporting items for systematic reviews and meta-analysis methods, the literature review and paper selection were completed. Meta-analysis was performed on the data from peer-reviewed studies that met the inclusion …
Estimating Relative Abundance Of Young-Of-Year American Eel, Anguilla Rostrata, In The Virginia Tributaries Of Chesapeake Bay (Spring 2022), Troy D. Tuckey, Daniel Royster, Mary C. Fabrizio
Estimating Relative Abundance Of Young-Of-Year American Eel, Anguilla Rostrata, In The Virginia Tributaries Of Chesapeake Bay (Spring 2022), Troy D. Tuckey, Daniel Royster, Mary C. Fabrizio
Reports
The Atlantic States Marine Fisheries Commission (ASMFC) adopted the Interstate Fishery Management Plan (FMP) for the American Eel in November 1999. The FMP calls for efforts to collect American Eel data through both fishery-dependent and fishery-independent studies in coastal states. Consequently, member jurisdictions agreed to implement an annual survey for young-of-year (YOY or glass) American Eels. The survey is intended to “…characterize trends in annual recruitment of the YOY eels over time [to produce a] qualitative appraisal of the annual recruitment of American Eel to the U.S. Atlantic Coast” (ASMFC 2000). The development of these surveys began in 2000 with …
Estimation Of Juvenile Striped Bass Relative Abundance In The Virginia Portion Of Chesapeake Bay Annual Progress Report: 2022 - 2023, Jack R. Buchanan, Mary C. Fabrizio, Troy D. Tuckey
Estimation Of Juvenile Striped Bass Relative Abundance In The Virginia Portion Of Chesapeake Bay Annual Progress Report: 2022 - 2023, Jack R. Buchanan, Mary C. Fabrizio, Troy D. Tuckey
Reports
The 2022 juvenile Striped Bass abundance index was 7.95 and was not significantly different than the reference mean of 7.77 for the period 1980 to 2009. Abundance indices were average in the York and Rappahannock rivers and below average in the James River in 2022 compared with the river-specific reference means (1980-2009). Relatively low catches of young‐of‐the‐year Striped Bass from sites upriver and downriver of core nursery areas suggest juvenile Striped Bass largely remained within core nursery areas in 2022.
Indices of abundance were also calculated for three additional economically and recreationally important fishes in Virginia waters. Juvenile White Perch …
2023 Annual Report: Estimating Relative Juvenile Abundance Of Ecologically Important Finfish In The Virginia Portion Of Chesapeake Bay, Troy D. Tuckey, Mary C. Fabrizio
2023 Annual Report: Estimating Relative Juvenile Abundance Of Ecologically Important Finfish In The Virginia Portion Of Chesapeake Bay, Troy D. Tuckey, Mary C. Fabrizio
Reports
The VIMS Juvenile Fish 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). Annual indices of juvenile abundance have been generated from trawl survey data for species of key recreational and ecological importance in the Virginia portion of Chesapeake Bay. These include Spot, Atlantic Croaker, Weakfish, Summer Flounder, Black Sea Bass, Scup, Striped Bass, White Perch, White Catfish, Channel Catfish, Blue Catfish, Silver Perch, American Eel, and Bay Anchovy. …
Quantifying Antarctic Krill Connectivity Across The West Antarctic Peninsula And Its Role In Large-Scale Pygoscelis Penguin Population Dynamics, Katherine L. Gallagher, Michael S. Dinniman, Heather J. Lynch
Quantifying Antarctic Krill Connectivity Across The West Antarctic Peninsula And Its Role In Large-Scale Pygoscelis Penguin Population Dynamics, Katherine L. Gallagher, Michael S. Dinniman, Heather J. Lynch
CCPO Publications
Antarctic krill (Euphausia superba) are considered a keystone species for higher trophic level predators along the West Antarctic Peninsula (WAP) during the austral summer. The connectivity of krill may play a critical role in predator biogeography, especially for central-place foragers such as the Pygoscelis spp. penguins that breed along the WAP during the austral summer. Antarctic krill are also heavily fished commercially; therefore, understanding population connectivity of krill is critical to effective management. Here, we used a physical ocean model to examine adult krill connectivity in this region using simulated krill with realistic diel vertical migration behaviors across …
Virginia Fishery Resource Grant Program 2022, Virginia Institute Of Marine Science, Virginia Fishery Resource Grant Program
Virginia Fishery Resource Grant Program 2022, Virginia Institute Of Marine Science, Virginia Fishery Resource Grant Program
Reports
The Virginia Fishery Resource Grant Program (VFRGP) enables members of Virginia’s seafood industries to develop ideas to protect and enhance the Commonwealth’s coastal and marine resources. Since its inception in 1999, the annually funded program has supported 143 projects, five of which were approved to start in 2022. These projects enable members of seafood industries to pursue ideas for increasing efficiency and sustainability that will benefit the entire industry, without personally bearing the cost and high risk. The VFRGP is coordinated by the Virginia Institute of Marine Science, Marine Advisory Program (VIMS MAP), in partnership with Virginia Sea Grant Marine …
Ecological Risk Assessment For The Western Australian Silverlip Pearl Oyster (Pinctada Maxima) Resource, K. A. Smith, S. Brown, A. M. Hart, A. Bissell
Ecological Risk Assessment For The Western Australian Silverlip Pearl Oyster (Pinctada Maxima) Resource, K. A. Smith, S. Brown, A. M. Hart, A. Bissell
Fisheries research reports
In August 2022, the Department of Primary Industries and Regional Development (DPIRD) convened an ecological risk assessment (ERA) of the fishery and aquaculture operations that access the Western Australian (WA) Silverlip Pearl Oyster (Pinctada maxima) resource (Resource).
The ERA considered the potential ecological impacts of the WA commercial Silverlip Pearl Oyster Fishery and related aquaculture activities including hatchery and seeding operations. The assessment evaluated the impact of each activity on all relevant retained and discarded species; threatened, endangered and protected species; habitats and the broader environment. Risks associated with aquaculture activities were also considered, including genetic impacts on …
Fecal Dna Metabarcoding Shows Credible Short-Term Prey Detections And Explains Variation In The Gut Microbiome Of Two Polar Bear Subpopulations, M. Franz, L. Whyte, T. C. Atwood, D. Menning, Sarah A. Sonsthagen, S. L. Talbot, K. L. Laidre, E. Gonzalez, M. A. Mckinney
Fecal Dna Metabarcoding Shows Credible Short-Term Prey Detections And Explains Variation In The Gut Microbiome Of Two Polar Bear Subpopulations, M. Franz, L. Whyte, T. C. Atwood, D. Menning, Sarah A. Sonsthagen, S. L. Talbot, K. L. Laidre, E. Gonzalez, M. A. Mckinney
Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications
No abstract provided.
Movement And Genomic Methods Reveal Mechanisms Promoting Connectivity In A Declining Shorebird: The Lesser Yellowlegs, K. Christie, R. E. Wilson, J. A. Johnson, C. Friis, C. M. Harwood, L. A. Mcduffie, E. Nol, Sarah A. Sonsthagen
Movement And Genomic Methods Reveal Mechanisms Promoting Connectivity In A Declining Shorebird: The Lesser Yellowlegs, K. Christie, R. E. Wilson, J. A. Johnson, C. Friis, C. M. Harwood, L. A. Mcduffie, E. Nol, Sarah A. Sonsthagen
Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications
No abstract provided.
Using Intervention Analysis To Evaluate The Trends In Release Rates Of Recreational Fisheries Following Extensive Management Changes, Brett Crisafulli, Ebenezer Afrifa-Yamoah, Ute Mueller, Karina Ryan, David Fairclough, Johnny Lo
Using Intervention Analysis To Evaluate The Trends In Release Rates Of Recreational Fisheries Following Extensive Management Changes, Brett Crisafulli, Ebenezer Afrifa-Yamoah, Ute Mueller, Karina Ryan, David Fairclough, Johnny Lo
Research outputs 2022 to 2026
Changes to management of a fisheries resource are often required to ensure ongoing sustainability. However, such changes can sometimes lead to unintended effects such as increased release rates and associated post-release mortality. These effects may be highly variable between species and areas. Recreational fishing management changes were introduced on the west coast of Australia in 2009/10 to recover stocks of demersal scalefish. Key changes included reducing mixed species bag limits across management zones and increasing the minimum size limit for one species in some management zones. The restrictive catch limits resulted in increased release rates of key demersal species. However, …
Aquaculture Research Institute Newsletter, December 2, 2022, Aquaculture Research Institute
Aquaculture Research Institute Newsletter, December 2, 2022, Aquaculture Research Institute
General University of Maine Publications
Eight Projects through The University of Maine and partners receive federal funding from NOAA Grant Awards. NOAA has allocated over 2.9 million dollars to UMaine and other partners for the Fiscal Year 2022 from three different NOAA grant programs: Sea Grant, Saltonstall-Kennedy, and the Atlantic States Marine Fisheries Commission. Recipients include the University of Maine’s Aquaculture Research Institute (ARI), University of Maine Center for Cooperative Aquaculture Research (CCAR), Maine Sea Grant, and Maine Aquaculture Innovation Center (MAIC) based at UMaine’s Darling Marine Center. ARI staff have received funding from all 3 grants. These projects will advance the environmental and economic …
Aquaculture In Africa: Aquatic Animal Welfare, Impact On The Environment And The Sustainability Of The Sector, Mwenda M. Mbaka, Janice H. Cox, Stephen Ronan
Aquaculture In Africa: Aquatic Animal Welfare, Impact On The Environment And The Sustainability Of The Sector, Mwenda M. Mbaka, Janice H. Cox, Stephen Ronan
Aquaculture
The African aquaculture sector recorded the fastest growth in the world between 2006-2018, averaging 10% or more, and is expected to partially fill the growing fish supply-demand gap up to 2063. In 2018, there were about 1.2 million aquafarmers across the continent, an increase from 920 thousand in 2014. According to the African Development Bank, expansion of aquaculture in Africa is hampered by "the overwhelming predominance of tilapia farming, which relies heavily on the production of fingerlings from a limited number of genetically improved strains that are resistant to the many diseases affecting this species, and on the production of …
Landings, Vol. 30, No. 12, Maine Lobstermen’S Community Alliance, Melissa Waterman, Patrice Mccarron, Patrick Keliher
Landings, Vol. 30, No. 12, Maine Lobstermen’S Community Alliance, Melissa Waterman, Patrice Mccarron, Patrick Keliher
Landings: News & Views from Maine's Lobstering Community
Landings content emphasizes science, history, resource sustainability, economic development, and human interest stories related to Maine's lobster industry. The newsletter emphasizes lobstering as a traditional, majority-European American lifeway with an economic and social heritage unique to the coast of Maine. The publication focuses how ongoing research to engage in sustainable, non-harmful, and non-wasteful commercial fishing practices benefit both the fishery and Maine's coastal legacy.
For more information, please visit the Maine Lobstermen’s Community Alliance (MLCA) website.
Analysis Of Per Capita Contributions From A Spatial Model Provides Strategies For Controlling Spread Of Invasive Carp, Donald R. Schoolmaster Jr., Alison A. Coulter, Jahn L. Kallis, Donald C. Glover, John M. Dettmers, Richard A. Erickson
Analysis Of Per Capita Contributions From A Spatial Model Provides Strategies For Controlling Spread Of Invasive Carp, Donald R. Schoolmaster Jr., Alison A. Coulter, Jahn L. Kallis, Donald C. Glover, John M. Dettmers, Richard A. Erickson
Natural Resource Management Faculty Publications
Metapopulation models may be applied to inform natural resource management to guide actions targeted at location-specific subpopulations. Model insights frequently help to understand which subpopulations to target and highlight the importance of connections among subpopulations. For example, managers often treat aquatic invasive species populations as discrete populations due to hydrological (e.g., lakes, pools formed by dams) or jurisdictional boundaries (e.g., river segments by country or jurisdictional units such as states or provinces). However, aquatic invasive species often have high rates of dispersion and migration among heterogenous locations, which complicates traditional metapopulation models and may not conform to management boundaries. Controlling …
Developing Novel Remote Camera Approaches To Assess And Monitor The Population Status Of Australian Sea Lions, Mathew Hourston, Daniela Waltrick, Stuart Blight, Ainslie Denham, Alex Hesp, Steve Taylor
Developing Novel Remote Camera Approaches To Assess And Monitor The Population Status Of Australian Sea Lions, Mathew Hourston, Daniela Waltrick, Stuart Blight, Ainslie Denham, Alex Hesp, Steve Taylor
Fisheries research reports
This project trialled the use of remote cameras to monitor the relative abundance of Australian sea lions (ASLs, Neophoca cinerea) at three Western Australian (WA) breeding colonies. The research was undertaken by the Department of Primary Industries and Regional Development (DPIRD) to assess whether the analysis of camera footage could be used to estimate ASL relative abundance, providing an alternative to the traditional “boots on the ground” approach (hereon in “BoG”) of visiting colonies to count animals. This report outlines the strengths and limitations of this novel approach rather than providing an update on the population status of ASLs. …
Nexus Between Animal Welfare, Environment, And Sustainable Development: Resource Document, Wellbeing International
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.