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Gascoyne Demersal Scalefish Resource Harvest Strategy 2017 – 2021. Version 1.0, Western Australia. Dept. Of Fisheries

Fisheries Management Papers

Harvest strategies for aquatic resources managed by the Western Australian Department of Primary Industries and Regional Development (DPIRD) Fisheries Division (Fisheries) are formal documents that are prepared based on a formal policy (Department of Fisheries 2015a) to support the decision-making processes and ensure these processes are consistent 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 2016 (ARMA), Clause 9, which will replace the …

Gascoyne Demersal Scalefish Resource Harvest Strategy : 2017 – 2021 : Version 1.0, Department Of Fisheries

Fisheries Management Papers

No abstract provided.

Aquaculture Of Coral, Live Rock And Live Sand In Western Australia, Department Of Fisheries

Fisheries Occasional Publications

Principles and Guidelines Relating to the Assessment of Licences for the Aquaculture of Coral, Live Rock and Live Sand in Western Australia

Rice Hull Bioreactor For Recirculating Aquaculture, Marlon A. Greensword

LSU Doctoral Dissertations

The engineering of floating media biofilters has been optimized over the years. The backwashing process has made them more energy and water efficient. Likewise, moving bed bioreactors (MBBR) are gaining interest and popularity because they are relatively affordable to build. Yet, developing countries’ aquaculture production remains largely excluded from the advances made in recirculating aquaculture systems (RAS). This discrepancy is partially driven by the high costs of media such plastic beads and Kaldnes (KMT) media, commonly used in MBBR.

This dissertation evaluates the usability and profitability of rice hulls (RH), an abundant by-product in many developing nations, as a sinking …

Genomic Signatures Of Local Adaptation Reveal Source-Sink Dynamics In A High Gene Flow Fish Species, Katherine Cure, Luke Thomas, Jean-Paul A. Hobbs, David V. Fairclough, Winn Jason Kennington

Fisheries Research Articles

Understanding source-sink dynamics is important for conservation management, particularly when climatic events alter species’ distributions. Following a 2011 ‘marine heatwave’ in Western Australia, we observed high recruitment of the endemic fisheries target species Choerodon rubescens, towards the cooler (southern) end of its distribution. Here, we use a genome wide set of 14 559 single-nucleotide polymorphisms (SNPs) to identify the likely source population for this recruitment event. Most loci (76%) showed low genetic divergence across the species’ range, indicating high levels of gene flow and confirming previous findings using neutral microsatellite markers. However, a small proportion of loci showed strong …

Evaluation Of Dna Barcoding Methodologies For The Identification Of Fish Species In Cooked Products, Sophia J. Pollack, Michael D. Kawalek, Donna M. Williams-Hill, Rosalee S. Hellberg

Food Science Faculty Articles and Research

DNA barcoding is a powerful sequencing-based tool for the detection of fish species substitution. However, various cooking methods have the potential to reduce the quality and success of DNA sequencing. The objective of this study was to determine the effects of common cooking methods on DNA sequencing results with both full-length (655 bp) and mini-barcodes (208–226 bp), and to determine the optimal methodology to use for species identification of various fish products. Six types of fish (salmon, tuna, scad, pollock, swai and tilapia) were prepared in triplicate using the following methods: uncooked, baked, fried, broiled, acid-cooked, smoked and canned. DNA …

Phylogenetically Clumped Species Composition Of Marine Green Algae (Chlorophyta) In The Temperate Zone, Hungyen Chen, Satoshi Nagai

Journal of Marine Science and Technology–Taiwan

Global patterns of diversity in marine algae have been reported at the genus level but rarely at the species level. In this study, we investigate the global distribution of species diversity for marine green algae and evaluate the effect of water temperature upon the species composition. We calculated and mapped the species richness and phylogenetic diversity of green algae in 5° x 5° latitude-longitude cells. We then compared and grouped the different spatial patterns of phylogenetic species composition of green algae around the world. Finally, we fitted a locally weighted scatterplot smoothing (LOWESS) curve to the sea surface temperature (SST) …

Examining The Relationship Between Mesohabitats And Freshwater Mussels In An East Texas River, Andrew R. Glen

Biology Theses

North America is home to 302 unionoid species, with approximately 53 occurring in Texas, and are considered one of the most imperiled group of organisms in North America. Several hypotheses have been proposed to explain the spatial distribution of mussels within a stream reach, but only certain hydraulic characteristics appear to be correlated with their distribution. Emerging evidence indicates that freshwater mussels may use flow refugia to remain embedded during high flow events. As the use of hydraulic variables to characterize mussel habitat becomes more widespread, it may be useful to implement sampling that captures these measures. One option may …

Administrative Guideline No. 1: Assessment Of Applications For Authorisations For Aquaculture And Pearling In Coastal Waters Of Western Australia, Department Of Primary Industries And Regional Development

Fisheries Administrative Guidelines

Under s.246 of the Fish Resources Management Act 1994 (FRMA) and under s.24 of the Pearling Act 1990 (PA) (collectively, the Acts), the Minister for Fisheries (Minister) may issue guidelines for the administration or enforcement of the Acts.

This Administrative Guideline (Guideline) aims to streamline the process for assessment of applications under s.92 and s.97 of the FRMA for aquaculture licences and leases and under s.23 of the PA for pearl oyster farm leases; and certain applications to vary a pearling lease or aquaculture licence.1 The Guideline is intended to provide guidance to the Department of Primary Industries and Regional …

Interactive Effects Of Flow Regime, Climate Change, And Angler Harvest On Smallmouth Bass At The Southern Range Extent, Christopher Middaugh

Graduate Theses and Dissertations

The Ozark-Ouachita Interior Highlands of Arkansas, Oklahoma, and Missouri are the southern extent of native Smallmouth Bass Micropterus dolomieu range. Smallmouth Bass are an important species economically and ecologically, but it is unknown how climate change may affect them in this region and in particular how Smallmouth Bass may be affected differently across streams from various flow regimes. Here I present three projects investigating how climate change, flow regime, and angler harvest may interact to affect Smallmouth Bass over the coming century. I first modeled present and future water temperatures and calculated growth rate potential for Smallmouth Bass from streams …

A Comparison Of Five Statistical Methods For Predicting Stream Temperature Across Stream Networks, Maike F. Holthuijzen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The health of freshwater aquatic systems, particularly stream networks, is mainly influenced by water temperature, which controls biological processes and influences species distributions and aquatic biodiversity. Thermal regimes of rivers are likely to change in the future, due to climate change and other anthropogenic impacts, and our ability to predict stream temperatures will be critical in understanding distribution shifts of aquatic biota. Spatial statistical network models take into account spatial relationships but have drawbacks, including high computation times and data pre-processing requirements. Machine learning techniques and generalized additive models (GAM) are promising alternatives to the SSN model. Two machine learning …

Water Quality's Influence On The Occupancy Of Two Jeopardized Fishes: The Blackside Dace (Chrosomus Cumberlandensis) And The Cumberland Arrow Darter (Etheostoma Sagitta) In Northeast Tennessee, Brandon L. Yates

Morehead State Theses and Dissertations

A thesis presented to the faculty of the College of Science, Morehead State University, in partial fulfillment of the requirements for the Degree Master of Science by Brandon L. Yates July 5, 2017.

The Effect Of "Casitas" On Lobster Biology And Fishery Sustainability In The Bahamas, Lester George Gittens

Biological Sciences Theses & Dissertations

“Casitas” (artificial table-like structures) are a commercial fishing gear used to harvest Caribbean spiny lobster (Panulirus argus) in the Caribbean and in The Bahamas, where lobster is the most valuable fishery. Yet, casitas are largely unregulated in The Bahamas and they may threaten fishery sustainability through alteration of lobster growth, disease, or mortality rates and due to insufficient information concerning their number and location. Focusing on the lobster fishery in The Bahamas, my objectives were to: (1) investigate the mortality, growth, and susceptibility to disease of lobsters collected in casitas compared to wooden traps and those living in …

The Effects Of Gamma Irradiation Sterilization, Temperature, And Ph On The Antimicrobial Activity Of Epinecidin-1, Han-Ning Huang, Chang-Jer Wu, Jyh-Yih Chen

Journal of Marine Science and Technology–Taiwan

This study examined how different processing conditions affected the antibacterial activity of epinecidin-1 alone or in combination with deionized distilled water or KY jelly and evaluated its activity against methicillin resistant Staphylococcus aureus (MRSA) in a product development pipeline. High temperature and γ-irradiation (25 kGy) decreased antimicrobial activity of epinecidin-1, as determined by measuring minimal inhibitory concentrations (MICs) and minimal bactericidal concentrations (MBCs). However, epinecidin-1 exhibited high antimicrobial activity under low pH conditions. The pH stability and the wide spectrum of action against methicillin resistant Staphylococcus aureus (MRSA) may make epinecidin-1 peptide a suitable drug candidate. This research demonstrates the …

Verification Of Echosounder Measurements Of Thickness And Spatial Distribution Of Kelp Forests, Huamei Shao, Kenji Minami, Hokuto Shirakawa, Takashi Maeda, Toshiaki Ohmura, Yoshikazu Fujikawa, Norishige Yotsukura, Masahiro Nakaoka, Kazushi Miyashita

Journal of Marine Science and Technology–Taiwan

Acoustic methods can be used to assess seaweed meadows. The accuracy of the methods is a key factor in the estimation of seaweed distribution and conditions. We obtained and verified thickness and spatial distribution values measured using an echosounder. We determined the thickness of seaweed growing in the coastal waters off Higashidoori-mura, Aomori, Japan on June 5-6, 2013. Acoustic data were collected using an on-board quantitative echosounder at 120 kHz. The thickness was also directly measured at 14 points. The root mean square error (RMSE) of the thickness determined by the acoustic and direct methods was calculated. A survey to …

Columbia River Basin Salmon And Steelhead Long-Term Recovery Situation Assessment, Oregon Solutions, William D. Ruckelshaus Center

National Policy Consensus Center Publications

In the fall of 2012, after consulting with a wide range of salmon recovery partners, NOAA Fisheries asked Oregon Consensus and the William D. Ruckelshaus Center (university-based, neutral, third-party institutions devoted to promoting collaborative governance and consensusbased public policy) to conduct an independent, impartial situation assessment to explore regional views about how best to approach comprehensive, long-term salmon and steelhead recovery in the Basin. The centers assembled an Assessment Team comprised of practitioners and academics from Washington, Oregon and Idaho.

The Assessment Team conducted 206 semi-structured interviews with individuals selected for their knowledge of, engagement in, and/or concern for salmon …

Strong Population Structure Deduced From Genetics, Otolith Chemistry And Parasite Abundances Explains Vulnerability To Localized Fishery Collapse In A Large Sciaenid Fish, Protonibea Diacanthus, Laura Taillebois, Diane P. Barton, David Crook, Thor Saunders, Jonathan Taylor, Mark Hearnden, Richard J. Saunders, Stephen J. Newman, Michael J. Travers, David J. Welch, Alan Greig, Christine Dudgeon, Safia Maher, Jennifer Ovenden

Fisheries Research Articles

As pressure on coastal marine resources is increasing globally, the need to quantitatively assess vulnerable fish stocks is crucial in order to avoid the ecological consequences of stock depletions. Species of Sciaenidae (croakers, drums) are important components of tropical and temperate fisheries and are especially vulnerable to exploitation. The black-spotted croaker, Protonibea diacanthus, is the only large sciaenid in coastal waters of northern Australia where it is targeted by commercial, recreational and indigenous fishers due to its food value and predictable aggregating behaviour. Localized declines in the abundance of this species have been observed, highlighting the urgent requirement by managers …

Body Condition Of Endangered Humpback Chub In Relation To Temperature And Discharge In The Lower Colorado River, Forest P. Hayes, Michael J. Dodrill, Brandon S. Gerig, Colton Finch, William E. Pine Iii

Watershed Sciences Faculty Publications

Determining the population status of endangered Humpback Chub Gila cypha is a major component of the adaptive management program designed to inform operation of Glen Canyon Dam upstream from Grand Canyon, Arizona. In recent decades, resource managers have identified a portfolio of management actions (with intermittent implementation) to promote population recovery of Humpback Chub, including nonnative fish removal, changes in water release volumes and discharge ramping schedules, and reductions in hydropower peaking operations. The Humpback Chub population in Grand Canyon has increased over this same period, causal factors for which are unclear. We took advantage of unusual hydrology in the …

Characterizing Growth And Condition Of Endangered Humpback Chub In The Lower Colorado River, William E. Pine Iii, Brandon S. Gerig, Colton Finch

Watershed Sciences Faculty Publications

This paper is a preface to the two papers that follow in this issue. The two papers (by Pine et al. and Hayes et al.) use long-term fish sampling data from ongoing Humpback Chub monitoring efforts and archival otolith samples (from museums) collected in the lower Colorado and Little Colorado Rivers during periods of both cold- and warm-water conditions to assess whether Humpback Chub growth characteristics may have responded to changes in water temperature. Growth patterns are often of interest to resource managers because growth integrates a large range of environmental and ecological factors, including habitat conditions. Together, these papers …

Growth Of Endangered Humpback Chub In Relation To Temperature And Discharge In The Lower Colorado River, W. E. Pine Iii, K. Limburg, B. Gerig, Colton Finch, D. Chagaris, L. Coggins, D. Speas, D. A. Hendrickson

Watershed Sciences Faculty Publications

Assessments of growth can provide information needed to understand how fish populations respond to changing environmental conditions and management actions, including ecosystem experimentation. We estimated growth rates and parameter uncertainty from otoliths of endangered Humpback Chub Gila cypha from the Colorado River in Grand Canyon, Arizona. We then compared growth of Humpback Chub , age 2 that were 1) occupying the mainstem Colorado River during a period of variable discharge and cooler water temperatures (1980–1998; epoch 1), 2) occupying the Colorado River during a period of moderate discharge variability and warmer water (2001–2011; epoch 2), and 3) occupying the unregulated …