Squid And Cuttlefish Resources Of Western Australia, 2021 Department of Primary Industries and Regional Development Western Australia
Squid And Cuttlefish Resources Of Western Australia, Daniel E. Yeoh Phd, Danielle J. Johnston Phd, David C. Harris
Fisheries research reports
This report provides a description and assessment of the squid and cuttlefish resources of Western Australia, and all of the fishing activities (i.e. fisheries / fishing sectors) affecting these resources. Encompassed are multiple species in the orders Oegopsida and Myopsida (squid or ‘calamari’) and Sepiida (cuttlefish), including; southern calamari (Sepioteuthis australis), northern calamari (Sepioteuthis lessoniana), Gould’s squid (Nototodarus gouldi), loligo squids Uroteuthis (Photololigo) spp.,giant cuttlefish (Sepia apama), broadclub cuttlefish (Sepia latimanus) and pharaoh cuttlefish (Sepia pharaonis).
Blanding’S Turtle (Emydoidea Blandingii): Species Conservation Assessment, 2021 Nebraska Game and Parks Commission
Blanding’S Turtle (Emydoidea Blandingii): Species Conservation Assessment, Melissa J. Panella, Colleen Rothe-Groleau
Nebraska Game and Parks Commission Publications
The primary goal in development of at-risk species conservation assessments is to compile biological and ecological information that may assist conservation practitioners in making decisions regarding the conservation of species of interest. The Nebraska Natural Legacy Project recognizes the Blanding’s turtle (Emydoidea blandingii) as a Tier I at-risk species. Some general management recommendations are made here regarding Blanding’s turtles; however, conservation practitioners will need to use professional judgment to make specific management decisions based on objectives, location, and a multitude of variables. This resource was designed to share available knowledge of this at-risk turtle that will aid in ...
Results For The 2021 Vims Industry Cooperative Surveys Of The Mid-Atlantic, Nantucket Lightship, Closed Area I, And Closed Area Ii Resource Areas, 2021 Virginia Institute of Marine Science
Results For The 2021 Vims Industry Cooperative Surveys Of The Mid-Atlantic, Nantucket Lightship, Closed Area I, And Closed Area Ii Resource Areas, Sally Roman, David Rudders
The Virginia Institute of Marine Science (VIMS) conducted high resolution sea scallop dredge surveys of the Mid-Atlantic (MAB), the Nantucket Lightship (NLCA), Closed Area I (CAI), and Closed Area II (CAII) during May - July 2021 (Figure 1). These surveys were funded by the Sea Scallop Research Set-Aside Program (RSA). Exploitable biomass for each survey is shown in Table 1 for each SAMS Area (Scallop Area Management Simulator). SAMS Areas represent management relevant spatial subunits of the resource and explicitly account for differences in recruitment, vital rates, and fishing effort in the forward projection of survey information. This information is used ...
Novel Pilot Development Of A Closed-Loop Sustainable System Between Biogas Renewable Energy, Distilling, And Aquaculture By Vermiculture Of Stillage Wastes, Samuel C. Kessler
The Cardinal Edge
This study provides a mixed-methods approach in analyzing a potential closed-loop system between renewable biogas production from anaerobic digestion, vermiculture production, aquaculture production, and organic wastes with a particular focus on stillage wastes. Such system may hold significant promise for significantly reducing organic carbon and methane emissions from its components, and should be assessed for such. The 2021 IPCC report essentially identified methane reduction as the single fastest way to slow global warming (IPCC, 2021), making the study and implementation of methane-reducing systems and supportive policy for them critical. Knowledge gaps to implementing this system were qualitatively identified as disconnect ...
A Modular Open-Technology Device To Measure And Adjust Concentration Of Sperm Samples For Cryopreservation, 2021 Louisiana State University and Agricultural and Mechanical College
A Modular Open-Technology Device To Measure And Adjust Concentration Of Sperm Samples For Cryopreservation, Nikolas C. Zuchowicz
LSU Master's Theses
Repositories for aquatic germplasm can safeguard the genetic diversity of species of interest to aquaculture, research, and conservation. The development of such repositories is impeded by a lack of standardization both within laboratories and across the research community. Protocols for cryopreservation are often developed ad hoc and without close attention to variables, such as sperm concentration, that strongly affect the success and consistency of cryopreservation. The wide dissemination and use of specialized tools and devices can improve processing reliability, provide data logging, produce custom hardware to address unique problems, and save costs, time, and labor. The goal of the present ...
Green Economics: Assessing The Feasibility Of A New England Green Crab (Carcinus Maenas) Fishery Through Fishermen Perspectives, 2021 University of New England
Green Economics: Assessing The Feasibility Of A New England Green Crab (Carcinus Maenas) Fishery Through Fishermen Perspectives, William L. Walter
All Theses And Dissertations
The European green crab (Carcinus maenas) is a well-adapted invasive species that has flourished throughout coastal New England. Its arrival has caused numerous negative environmental and socioeconomic impacts, including the decline of the Maine soft shell clam (Mya arenaria) fishery. Increases in north Atlantic sea surface temperatures have simultaneously propelled the proliferation of C. maenas and caused northward shifts in the geographic ranges of commercially relevant species, including the American lobster (Homarus americanus). C. maenas represents an underutilized species that H. americanus and M. arenaria fishers can target to supplement any lost income if C. maenas markets are economically viable ...
Otoliths Of South-Western Australian Fish: A Photographic Catalogue, Chris Dowling, Kim Smith, Elaine Lek, Joshua Brown
Fisheries research reports
Due to the species-specific nature of otoliths and given they are often the only part of the fish preserved when fish die, otolith catalogues can be used in numerous applications, such as diet studies in fish eating animals, including pinnipeds, fish and sea birds; archaeological purposes such as reconstructing indigenous people’s diets from otoliths found in middens or evolutionary history of fish species by comparing fossilized otoliths. Given the unique mixture of subtropical and temperate fish, including many endemic species that occur off the southwest corner of WA having a catalogue for this area is extremely important for people ...
Primary Industries Development Research Highlights 2021, Department Of Primary Industries And Regional Development, Tim Scanlon
Books & book chapters
The Primary Industries Development Research Highlights 2021 showcases the breadth and depth of the Department of Primary Industries and Regional Development’s research and development activities over the past several years.
Stories featured in Research Highlights 2021 stem from about 60 (of 140) current and recently-completed projects undertaken by the Department of Primary Industries and Regional Development’s (DPIRD) 1100 scientists, technical experts and economists throughout the State.
Explore our Research Highlights 2021.
The publication demonstrates the innovative and applicable research that DPIRD and its collaborators and investment partners deliver to Western Australia.
Download the Research Highlights 2021 here. Alternatively ...
Three Newly Recorded Genera And Species Of Gobiid Fishes (Teleostei: Gobiidae) From The Dongsha Atoll (Pratas Islands), South China Sea, 2021 Institute of Ocean Technology and Marine Affairs, National Cheng-Kung University, Tainan, Taiwan, R.O.C. Marine National Park Headquarters, Taiwan, Kaohsiung, Taiwan, R.O.C
Three Newly Recorded Genera And Species Of Gobiid Fishes (Teleostei: Gobiidae) From The Dongsha Atoll (Pratas Islands), South China Sea, Shao-Liang Hsu, Ta-Kang Liu, Kwang-Tsao Shao, Kuan-Te Chen, I-Shiung Chen
Journal of Marine Science and Technology
Three newly recorded gobiid genera of coral-reef gobies have been collected and examined by scuba diving in the Dongsha Atoll, also known as the Pratas Islands, South China Sea. They are Feia Smith, 1959; Sueviota Winterbottom and Hoese, 1988; and Trimmatom Winterbottom and Emery, 1981. These three genera were formerly unrecorded in the Dongsha Atoll and all Taiwanese waters before this paper. One representing species was found for each gobiid genus. The diagnosis for these three newly recorded species and genera will be provided in this paper.
Assessing The Trophic Positions Of Lake Michigan Fishes Using Stable Carbon And Nitrogen Isotopes, 2021 University of Wisconsin-Milwaukee
Assessing The Trophic Positions Of Lake Michigan Fishes Using Stable Carbon And Nitrogen Isotopes, Benjamin Alan Turschak
Theses and Dissertations
Lake Michigan is the second largest Laurentian Great Lake and is characterized by broad spatiotemporal variation in ecosystem processes such as nutrient cycling and energy flow. Variation in ecosystem processes—such as those induced by invasive dreissenid mussels—and subsequent changes in the spatiotemporal distribution of resources (i.e. prey or habitat) has resulted in major changes in Lake Michigan’s fish community. The ability of fish species to cope with spatiotemporal resource dynamics is at least partially dependent on their ability to shift apparent trophic position along various resource gradients. The objectives of this research were to quantify trophic ...
The Impacts Of Climate Change On The Gulf Of Maine Northern Shrimp (Pandalus Borealis) Distribution, Reproduction, And Life, Hsiao-Yun Chang
Electronic Theses and Dissertations
The Gulf of Maine northern shrimp (Pandalus borealis) once supported a significant winter fishery for the Gulf of Maine (GOM). Although the shrimp fishery is not comparable to the lobster business, it provided fishermen and many coastal communities jobs and incomes in winters after lobster seasons. However, a moratorium has been put on the shrimp fishery since 2014 due to record low population abundance and perceived recruitment failures. The recruitment failures have been correlated with warming water temperatures over the past decade. The GOM has been recognized as experiencing rapid warming as a result of global climate change. Uncertain impacts ...
The Waste Management Of Large-Scale Recirculating Aquaculture Systems And Potential Value-Added Products From The Waste Stream, 2021 University of New England
The Waste Management Of Large-Scale Recirculating Aquaculture Systems And Potential Value-Added Products From The Waste Stream, Franco R. Pilone
All Theses And Dissertations
Recirculating Aquaculture Systems (RAS) is an emerging technology that is capturing the attention of many in aquaculture due to its ability to produce high-quality seafood using sustainable models. This study explored the waste management of RAS, specifically further treatment technologies, and the potential value-added products from the RAS waste stream that can be reused. Advanced, tertiary, or down-stream treatment technologies available for RAS were investigated through a literature review. Utilizing the constant comparative method and semistructured interviews with stakeholders in RAS, opinions and attitudes were collected about advanced treatment of RAS waste and reuse opportunities presented from value-added products generated ...
The Effect Of Density On Growth, Yield, And Reproduction Of The Sea Scallop, Placopecten Magellanicus: Final Report, 2021 Virginia Institute of Marine Science
The Effect Of Density On Growth, Yield, And Reproduction Of The Sea Scallop, Placopecten Magellanicus: Final Report, Sally Roman, David Rudders, Roger L. Mann, Kaitlyn R. Clark
Results from this project indicate that density in combination with settlement at depth in potentially marginal habitat contribute to reductions in growth, yield, and reproductive effort. In general, Study Area was not a contributing factor to the reductions in the three areas of scallop biological processes we measured. Scallops that settle in dense aggregations at varying depths may respond differentially to environmental conditions, food availability, habitat, and removals. (...)
Results from this study will enhance our knowledge of the scallop population with respect to conditions that diverge from expected biological processes. Results will also allow for better management and assessment of ...
Moving Towards The Science-Based Fisheries Management (Sbfm) In China, 2021 University of Maine
Moving Towards The Science-Based Fisheries Management (Sbfm) In China, Shu Su
Electronic Theses and Dissertations
Sustainable fisheries management requires decisions to be made based on sound science. To help ensure this, a Science-Based Fisheries Management (SBFM) system should be established to produce the best available science (BAS) and to ensure that the BAS forms the basis of decision-making. The goal of this dissertation is to look at how China, the world’s largest marine fisheries country, might build an effective SBFM system to enable its marine fisheries to attain sustainability. Studies were conducted to answer the following guiding questions: 1) what is SBFM? 2) why is it necessary for China to deploy SBFM? 3) what ...
Effects Of Salinity On Eastern Oysters: Locating Lower-Salinity Tolerant Populations And Defining Resource Zones Suitable To Restoration, Fisheries, And Aquaculture., 2021 Louisiana State University and Agricultural and Mechanical College
Effects Of Salinity On Eastern Oysters: Locating Lower-Salinity Tolerant Populations And Defining Resource Zones Suitable To Restoration, Fisheries, And Aquaculture., Lauren Swam
LSU Master's Theses
Eastern oysters (Crassostrea virginica) provide valuable ecosystem services and support a productive commercial industry in the northern Gulf of Mexico. Declining abundance from water quality changes and other factors drives development of management and restoration strategies focused on a comprehensive, metapopulation approach. Identifying oyster resource zones based on water quality combined with selective breeding of oysters adapted to specific conditions provides strategies to support aquaculture development and ensure resilient oyster populations and high production. Using 2015-2019 satellite-derived continuous salinity and temperature data for coastal Louisiana, this work created maps defining oyster resource zones supportive of (1) broodstock sanctuary reefs, (2 ...
Adopting Principles Of Food Justice For Equitable Oyster Aquaculture Industry Development, 2021 University of New England
Adopting Principles Of Food Justice For Equitable Oyster Aquaculture Industry Development, Cristina Sandolo
All Theses And Dissertations
The mid-Atlantic region is experiencing a resurgence of oyster production, through both wild harvest and, more recently, aquaculture. While a historic, wild catch oyster fishery drove economic development of the region, the modern-day oyster industry is less intensive, more heavily managed, and is growing due to a growing aquaculture industry. While many Black watermen played critical roles in developing the historic wild-caught industry, barriers to advancement within the industry and to wealth accumulation in general prevented many from experiencing the full array of compensation, benefits, and legacy that the booming industry could have provided. Now, the modern-day oyster aquaculture industries ...
Investigating Larval Spillover From Oyster Aquaculture Through Geospatial Habitat Suitability Index Modeling: A Damariscotta River Estuary Case Study, Daniel F. Delago
All Theses And Dissertations
The eastern oyster (Crassostrea virginica) supports the ecological function of estuarine ecosystems by creating biogenic reef habitat (Purchon, 2013), and positively influencing coastal biogeochemistry in intertidal, and subtidal environments (Humphries et al., 2016; Ray and Fulweiler, 2020). As anthropogenic impacts continue to influence the health of marine environments globally (Halpern et al., 2008), oyster reef restoration is gaining increased attention as a means of maintaining the function of estuarine systems (Beck et al, 2011). Shellfish aquaculture has gained increased attention, contributing 21% of all aquaculture production globally (FAO 2020). Shellfish aquaculture provides a suite of social-ecological benefits while contributing to ...
Adding Value Through Sustainability: Incentivizing An Ecosystem Approach To Oyster Aquaculture In Maine, 2021 University of New England
Adding Value Through Sustainability: Incentivizing An Ecosystem Approach To Oyster Aquaculture In Maine, Samuel Feldman
All Theses And Dissertations
This study identified oyster farming practices that have the potential to increase the sustainability of Maine’s oyster industry while increasing its value. Practices aligned with the principles of the ecosystem approach to aquaculture were gleaned from semi-structured interviews and surveys of oyster farmers and their buyers. Themes from interview transcripts were developed using thematic analysis. Survey data was used to triangulate interview transcript data. As a result, sustainable oyster farming practices were identified that had direct and indirect connections to the value of Maine’s oysters. Practices with direct connections to increased oyster value included conducting and advertising actions ...
First Data On Aquaculture Of The Tripletail, Lobotes Surinamensis, A Promising Candidate Species For U.S. Marine Aquaculture, 2021 University of Southern Mississippi
First Data On Aquaculture Of The Tripletail, Lobotes Surinamensis, A Promising Candidate Species For U.S. Marine Aquaculture, Eric Saillant, Nicholas Adams, Jason T. Lemus, James S. Franks, Yonathan Zohar, John Stubblefield, Christopher Manley
The Tripletail, Lobotes surinamensis, is a warm-water pelagic fish that is increasingly targeted by U.S. anglers. The superior quality of Tripletail flesh coupled with the lack of domestic commercial fisheries stimulated interests to develop aquaculture of this species. In this work, photo-thermal conditioning of captive-held broodstocks promoted maturation in females, but spontaneous spawning was not observed. GnRHa slow-release implants induced ovulation in late vitellogenic females but fertility remained below 10% when GnRHa was administered alone. However, spawns with high fertility (up to 85%) were obtained when a dopamine antagonist was administered in conjunction with GnRHa implants indicating dopamine inhibition ...
Effects Of Stocking Transport Duration On Age-0 Walleye, 2021 Iowa State University
Effects Of Stocking Transport Duration On Age-0 Walleye, Emily E. Ball, Michael J. Weber
Natural Resource Ecology and Management Publications
Fish hatcheries are generally not adjacent to stocking locations. Thus, hatchery fish undergo transportation processes for variable durations that can result in changes in water quality, fish physiology (e.g., whole blood glucose and plasma cortisol), and reduced survival. Walleye Sander vitreus are commonly stocked throughout North America with variable stocking success, possibly due to altered physiological responses associated with changes in water quality parameters during transportation. We hypothesized increased transport duration would be associated with increases in water temperature, carbon dioxide, and total ammonia nitrogen and decreases in pH and total alkalinity. We also hypothesized that increases in carbon ...