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Full-Text Articles in Aquaculture and Fisheries

Status Of The Blackstripe (Fundulus Notatus) And Blackspotted (F. Olivaceus) Topminnows In The Ozark Uplands Of Central Missouri, Nathaniel Steffensmeier, Naznin Sultana Remex, Robert Hrabik, David D. Duvernell May 2020

Status Of The Blackstripe (Fundulus Notatus) And Blackspotted (F. Olivaceus) Topminnows In The Ozark Uplands Of Central Missouri, Nathaniel Steffensmeier, Naznin Sultana Remex, Robert Hrabik, David D. Duvernell

Southeastern Fishes Council Proceedings

The topminnow species Fundulus notatus and F. olivaceus have broadly overlapping geographic distributions that extend throughout much of the central and southern United States. In the northern portion of their respective ranges, in Missouri, the regional distributions of the two species coincide largely with recognized ecoregions. In the unglaciated southern half of Missouri, F. olivaceus is distributed throughout Ozark upland habitats while F. notatus is abundant in marginal large river and prairie habitats along the Ozark borders. An exception to this partitioning is the historical report of abundant F. notatus in the Bourbeuse and upper Meramec River drainages within the ...


The Impact Of Nicotine Accumulation Exposure On Lithobates Catebeianus Larvae Mortality, Luke Micek Apr 2020

The Impact Of Nicotine Accumulation Exposure On Lithobates Catebeianus Larvae Mortality, Luke Micek

UCARE Research Products

Cigarette butts are the most littered item in the world and contain over 4,000 chemicals, including the organic compound nicotine (Slaughter et al. 2011). Billions of cigarette butts are littered each year which may wash into bodies of water, impacting the local wildlife. To determine how introduced chemicals impact the environment, it is important to study its effects on indicator species. Amphibians, such as Lithobates catebeianus, act as indicator species due to their extreme sensitivity to chemical changes in its environment. The purpose of this research project was to obtain data to help determine the impact nicotine accumulation has ...


Covers Jan 2020

Covers

Bulletin of the Southern California Academy of Sciences

No abstract provided.


Protecting The Wui In California: Greenbelts Vs Thinning For Wildfire Threats To Homes, Jon E. Keeley Jan 2020

Protecting The Wui In California: Greenbelts Vs Thinning For Wildfire Threats To Homes, Jon E. Keeley

Bulletin of the Southern California Academy of Sciences

This study utilized native chaparral and sage scrub shrubs to evaluate the impact of light summer irrigation on live fuel moisture content (LFMC) and predicted fire behavior. As to be expected LFMC varied markedly throughout the year being over 100% in winter in all species and treatments but differed markedly by treatment in the summer and fall. For most species lightly irrigated plants had the highest LFMC in the summer and fall, followed by thinned treatments and controls. These differences in moisture content coupled with structural differences in the vegetation contributed to expected differences in flame length and rate of ...


Diet Of A Recently Reintroduced River Otter (Lontra Canadensis) Population In Taos County, New Mexico, Gabriela Alexandra Wolf-Gonzalez Jan 2020

Diet Of A Recently Reintroduced River Otter (Lontra Canadensis) Population In Taos County, New Mexico, Gabriela Alexandra Wolf-Gonzalez

Theses and Dissertations--Forestry and Natural Resources

North American river otters (Lontra canadensis), native to every U.S. state and Canada, experienced extensive population decreases and range reduction until the mid-20th century as a result of overexploitation and habitat loss during European colonization. The last known river otter in New Mexico was killed on the Gila River in 1953, although unverified reports continued thru 2008. After a nearly 60-year absence from New Mexico, 33 adult river otters were reintroduced to the Rio Pueblo de Taos in the northern part of the state between 2008-2010; however, they were not subsequently monitored or studied. I characterized diet of this ...


Anthropomorphic Denial Of Fish Pain, Lynne U. Sneddon, Matthew C. Leach Sep 2019

Anthropomorphic Denial Of Fish Pain, Lynne U. Sneddon, Matthew C. Leach

Lynne Sneddon, PhD

Key (2016) affirms that we do not know how the fish brain processes pain but denies — because fish lack a human-like cortex — that fish can feel pain. He affirms that birds, like fish, have a singly-laminated cortex and that the structure of the bird brain is quite different from that of the human brain, yet he does not deny that birds can feel pain. In this commentary we describe how Key cites studies that substantiate mammalian pain but discounts the same kind of data as evidence of fish pain. We suggest that Key's interpretations are illogical, do not reflect ...


Virginia Shark Identification Guide, Multispecies Research Group, Virginia Institute Of Marine Science Apr 2019

Virginia Shark Identification Guide, Multispecies Research Group, Virginia Institute Of Marine Science

Reports

Table of Contents:

Atlantic Sharpnose Shark | Bigeye Thresher Shark | Bignose Shark | Blacknose Shark | Blacktip Shark | Blue Shark | Bluntnose Sixgill Shark | Bonnethead Bull Shark | Dusky Shark | Finetooth Shark | Great Hammerhead Shark | Great White Shark | Gulper Shark | Lemon Shark | Longfin Mako Shark | Night Shark | Oceanic Whitetip Shark | Porbeagle | Sandbar Shark | Sand Tiger Shark | Scalloped Hammerhead Shark | Sharpnose Sevengill Shark | Shortfin Mako Shark | Silky Shark | Smooth Dogfish | Smooth Hammerhead Shark | Spinner Shark | Spiny Dogfish | Thresher Shark | Tiger Shark


Covers Jan 2019

Covers

Bulletin of the Southern California Academy of Sciences

No abstract provided.


Covers Jan 2019

Covers

Bulletin of the Southern California Academy of Sciences

No abstract provided.


Daniel Guthrie Obituary Jan 2019

Daniel Guthrie Obituary

Bulletin of the Southern California Academy of Sciences

No abstract provided.


Distribution And Habitat Use Of Benthic Fishes In The Lower Kanawha River, West Virginia, Nathaniel V. Owens Jan 2019

Distribution And Habitat Use Of Benthic Fishes In The Lower Kanawha River, West Virginia, Nathaniel V. Owens

Graduate Theses, Dissertations, and Problem Reports

The Kanawha River in West Virginia is a historically diverse system in terms of ichthyofauna although, like many other large rivers, it has been subjected to a suite of anthropomorphic perturbations. These include this system being modified to allow the passage of commercial vessels for industry thus altering flow regimes, increased sedimentation, water depth, and channelization, and decreased interactions with its floodplain. Additionally, the fishes of this system have suffered from deleterious historical water quality issues caused by intensive timber operations, mining, and industrial waste. Post Clean Air Act, Clean Water Act, and Surface Mining Control and Reclamation Act water ...


An Assessment Of Night Time And Seasonal Electrofishing In The Lower Wabash River, Eric Christopher Hine Jan 2019

An Assessment Of Night Time And Seasonal Electrofishing In The Lower Wabash River, Eric Christopher Hine

Masters Theses

Large rivers are highly important systems; being exploited both commercially and recreationally. Because of this usage by humans, close monitoring of the ecology of theses rivers is of the utmost importance. The Long-Term Electrofishing project (LTEF) monitors the fish communities of the Illinois, Mississippi, Wabash, and Ohio rivers using day time, pulsed-DC electrofishing during the late Spring through the early Fall each year. Given that previous studies have noted diel and seasonal changes in catch and composition of fish communities, the addition of night time electrofishing may be beneficial to the overarching goals of the LTEF. This study sought to ...


Checklist Of Zooplanktons In Different Rivers Of Bajwat Area, Zahid Bhatti, Muhammad Asif Gondal, Asad Ghufran, Andleeb Batool Dec 2018

Checklist Of Zooplanktons In Different Rivers Of Bajwat Area, Zahid Bhatti, Muhammad Asif Gondal, Asad Ghufran, Andleeb Batool

Journal of Bioresource Management

Zooplanktons are important fish and waterfowl food. Limnological studies of Marala Wetlands, a complex created by three rivers, i.e., Jammu Tawi, Chenab and Manawar Tawi, entering Bajwat area located 25 km from North of Sialkot city from state of Jammu and Kashmir, were carried out between October, 2000 to September 2001. This survey was carried out to create a checklist of zooplanktons existing in the study site which would help in future studies relating to aquatic biodiversity and ecological studies of wetlands. A minimum of 25 species of zooplanktons were present in the wetland area, which can be included ...


Fish Diversity And Distribution In The Seagrass-Coral Reef Continuum At Two Sites Off The Western Coast Of Isla Bastimentos, Bocas Del Toro, Panama, Kathy Liu Oct 2018

Fish Diversity And Distribution In The Seagrass-Coral Reef Continuum At Two Sites Off The Western Coast Of Isla Bastimentos, Bocas Del Toro, Panama, Kathy Liu

Independent Study Project (ISP) Collection

Coral reefs are the most diverse marine ecosystem and the largest biogenic structure on Earth. They serve as shelter for many reef fishes and are a food source for resident and visiting fish species. In the tropics, coral reefs are often in close proximity to seagrass beds and the two contiguous marine habitats are not only highly interconnected but also highly understudied. The seagrass-coral reef continuum offers a wide array of services to human society as well as to various life stages of reef fishes resulting in diel, temporal, or yearly migrations of fish between the two habitats. Tropical reef ...


Spatio-Temporal Dynamics Of Atlantic Cod Bycatch In The Maine Lobster Fishery And Its Impacts On Stock Assessment, Robert E. Boenish May 2018

Spatio-Temporal Dynamics Of Atlantic Cod Bycatch In The Maine Lobster Fishery And Its Impacts On Stock Assessment, Robert E. Boenish

Electronic Theses and Dissertations

Of the most iconic fish species in the world, the Atlantic cod (Gadus morhua, hereafter, cod) has been a mainstay in the North Atlantic for centuries. While many global fish stocks have received increased pressure with the advent of new, more efficient fishing technology in the mid-20th century, exceptional pressure has been placed on this prized gadoid. Bycatch, or the unintended catch of organisms, is one of the biggest global fisheries issues. Directly resulting from the failed recovery of cod in the GoM, attention has been placed as to possible sources of unaccounted catch. Among the most prominent is ...


Emptying And Refilling Of Slime Glands In Atlantic (Myxine Glutinosa) And Pacific (Eptatretus Stoutii) Hagfishes, Sarah Schorno, Todd E. Gillis, Douglas S. Fudge Apr 2018

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

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

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


Parasites Of The Spotted Sucker, Minytrema Melanops (Cypriniformes: Catostomidae) From Arkansas And Oklahoma, Chris T. Mcallister, Donald G. Cloutman, Anindo Choudhury, Tomas Scholz, Stanley E. Trauth, Thomas J. Fayton, Henry W. Robison Jan 2018

Parasites Of The Spotted Sucker, Minytrema Melanops (Cypriniformes: Catostomidae) From Arkansas And Oklahoma, Chris T. Mcallister, Donald G. Cloutman, Anindo Choudhury, Tomas Scholz, Stanley E. Trauth, Thomas J. Fayton, Henry W. Robison

Journal of the Arkansas Academy of Science

During October 2015, March and April 2016 and again between March and April 2017, 15 Spotted Sucker (Minytrema melanops) were collected from sites in the Ouachita (n = 5), Red (n = 1), and St. Francis (n = 5) river drainages, Arkansas, and the Arkansas River drainage, Oklahoma (n = 4), and examined for protozoan and metazoan parasites. Found were Calyptospora sp., Myxobolus sp., Pseudomurraytrema alabarrum, Biacetabulum banghami, Penarchigetes oklensis, and Acanthocephalus sp. New host and distributional records are documented for these parasites.



Additional Records Of Acanthocephalan Parasites From Arkansas Fishes, With New Records From Missouri Fishes, Chris T. Mcallister, Michael A. Barger, Henry W. Robison Jan 2018

Additional Records Of Acanthocephalan Parasites From Arkansas Fishes, With New Records From Missouri Fishes, Chris T. Mcallister, Michael A. Barger, Henry W. Robison

Journal of the Arkansas Academy of Science

Over the last decade, our research consortium has provided information on acanthocephalan parasites of Arkansas vertebrates, including records from some of the state’s fishes. Here, we continue to provide data on new geographic and new host records of acanthocephalans from Arkansas fishes. In addition, for the first time, we report records of acanthocephalans for some Missouri fishes. We document 2 new state records as well as 10 new host records for some fish acanthocephalans.


Diversity Of Water Bugs In Gujranwala District, Punjab, Pakistan, Muhammad Shahbaz Chattha, Abu Ul Hassan Faiz, Arshad Javid, Irfan Baboo, Inayat Ullah Malik Jan 2018

Diversity Of Water Bugs In Gujranwala District, Punjab, Pakistan, Muhammad Shahbaz Chattha, Abu Ul Hassan Faiz, Arshad Javid, Irfan Baboo, Inayat Ullah Malik

Journal of Bioresource Management

Water bugs fall under the order Hemiptera, suborder Heteroptera, which is further divided into two types, i.e., semi-aquatic (Gerromorpha) and true water bugs (Nepomorpha). They play a vital role as biological control agents and also a source of food for fishes, birds and other aquatic organisms. The present work was carried out to ascertain aquatic Hemiptera in different lentic and lotic water bodies of various sizes in Gujranwala district, Pakistan. A total of 10 species belonging to five families were identified. Species include Nepa ruber Linnaeus, Laccotrephes elongatus Montandon, Ranatra filiformis Fabricius (Nepidae), Corixa substriata Uhler, Micronecta proba Distant ...


A Chronology Of Diet And Habitat Use In The Florida Manatee (Trichechus Manatus Latirostris): Insights From Stable Isotope Analysis, Malia Smith Jan 2018

A Chronology Of Diet And Habitat Use In The Florida Manatee (Trichechus Manatus Latirostris): Insights From Stable Isotope Analysis, Malia Smith

Williams Honors College, Honors Research Projects

The Florida Manatee (Trichechus manatus latirostris) is a threatened species that primarily feeds on marine and estuarine seagrasses. Over the past several years, the seagrass coverage in the Indian River Lagoon has varied due to human influence and algal blooms. This led to an unusual number of manatees dying and potentially, to remaining manatees shifting their diets. It can be difficult to decipher why or how diets shift, however, creating a timeline using stable isotopes can help address this challenge. Red blood cells from live Florida Manatees were analyzed for stable carbon, nitrogen, and sulfur isotope ratios. All samples were ...


Prey Naïveté And Predator-Prey Interactions Between Pterois Volitans, Pomacentridae, And Tetraodontidae In Two Reefs In The Guna Yala Archipelago, Panama, Jesse Garrett-Larsen Oct 2017

Prey Naïveté And Predator-Prey Interactions Between Pterois Volitans, Pomacentridae, And Tetraodontidae In Two Reefs In The Guna Yala Archipelago, Panama, Jesse Garrett-Larsen

Independent Study Project (ISP) Collection

The invasion of Pterois volitans along the Atlantic coast of the Americas is one of the top marine conservation issues of the century. Prey naïveté has been suggested as a mechanism for the success of P. volitans, but conclusive field observations have not been completed. This study tested for prey naïveté in situ by comparing time spent by Pomacentridae and Tetraodontidae in close proximity to P. volitans and a native predator, Cephalopholis cruentata. Difference in time spent by Pomacentridae and Tetraodontidae in the presence of the two predators was observed. The predators P. volitans and C. cruentata were sequentially observed ...


Changes In Zooplankton Community, And Seston And Zooplankton Fatty Acid Profiles At The Freshwater/Saltwater Interface Of The Chowan River, North Carolina, Deborah A. Lichti, Jacques Rinchard, David G. Kimmel Aug 2017

Changes In Zooplankton Community, And Seston And Zooplankton Fatty Acid Profiles At The Freshwater/Saltwater Interface Of The Chowan River, North Carolina, Deborah A. Lichti, Jacques Rinchard, David G. Kimmel

Environmental Science and Ecology Faculty Publications

The variability in zooplankton fatty acid composition may be an indicator of larval fish habitat quality as fatty acids are linked to fish larval growth and survival. We sampled an anadromous fish nursery, the Chowan River, during spring of 2013 in order to determine how the seston fatty acid composition varied in comparison with the zooplankton community composition and fatty acid composition during the period of anadromous larval fish residency. The seston fatty acid profiles showed no distinct pattern in relation to sampling time or location. The mesozooplankton community composition varied spatially and the fatty acid profiles were typical of ...


Measuring Fertilization In Populations Of Sea Scallop (Placopecten Magellanicus): Developing And Testing Methods In The Laboratory And Field, Skylar Bayer May 2017

Measuring Fertilization In Populations Of Sea Scallop (Placopecten Magellanicus): Developing And Testing Methods In The Laboratory And Field, Skylar Bayer

Electronic Theses and Dissertations

Most marine organisms are broadcast spawners, releasing their sperm and eggs into the water column. Methods of measuring in situ fertilization have proven successful with a few model species, which are reviewed in my introductory chapter. However, many commercially exploited species, such as the sea scallop Placopecten magellanicus, have been neglected. Sea scallop populations have greatly increased from fishing closures, but the mechanism behind this response is uncertain, particularly in regard to fertilization. In this dissertation I developed a methodology of measuring fertilization success and spawning events of P. magellanicus, tested it in laboratory and field settings, and developed a ...


Letter From The Dean, Lona Robertson Jan 2017

Letter From The Dean, Lona Robertson

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.


The Status Of Snapping Turtles (Chelydra Serpentina) In Virginia: Population Viability, Demography, Regulatory Analysis, And Conservation, Benjamin C. Colteaux Jan 2017

The Status Of Snapping Turtles (Chelydra Serpentina) In Virginia: Population Viability, Demography, Regulatory Analysis, And Conservation, Benjamin C. Colteaux

Theses and Dissertations

Snapping turtles (Chelydra serpentina) are being harvested in unprecedented numbers in the United States (US) to meet the needs of international markets. Over three million live snapping turtles from farm and wild caught stock were exported from the US to Asia in 2012-14 alone. In the Commonwealth of Virginia, records indicate that 29,860 snapping turtles were commercially harvested between 2000 and 2015. Size limits are often used to regulate harvest pressure in snapping turtles and other game species. I analyzed the historic harvest of eleven US states to test the efficacy of minimum-size limit regulations at reducing commercial harvest ...


Age, Growth And Reproduction Of Western North Atlantic Butterfly Rays (Myliobatiformes: Gymnuridae), With The Description Of Two New Species, Kristene Teal Parsons Jan 2017

Age, Growth And Reproduction Of Western North Atlantic Butterfly Rays (Myliobatiformes: Gymnuridae), With The Description Of Two New Species, Kristene Teal Parsons

Dissertations, Theses, and Masters Projects

Batoid fishes are among the most threatened and least understood chondrichthyan species worldwide due to their large body size, conservative life-history characteristics, and predominantly coastal distributions where fishing and habitat degradation threaten the stability of populations. A lack of empirical life history data is widespread across batoid taxa — nearly half of all species are considered data deficient, thus hindering species assessments and the development of effective management strategies. Furthermore, many batoid taxa are in need of taxonomic re-examination. Increasing our understanding of life history traits that determine population productivity, such as age and size at maturity, growth rate, and fecundity ...


The Emotional Brain Of Fish, Sonia Rey Planellas Jan 2017

The Emotional Brain Of Fish, Sonia Rey Planellas

Animal Sentience

Woodruff (2017) analyzes structural homologies and functional equivalences between the brains of mammals and fish to understand where sentience and social cognition might reside in teleosts. He compares neuroanatomical, neurophysiological and behavioural correlates. I discuss current advances in the study of fish cognitive abilities and emotions, and advocate an evolutionary approach to the underlying basis of sentience in teleosts.


Understanding The Impact Of Commercial Harvest On White Suckers (Catostomus Commersonii) In Maine, Megan A. Begley Nov 2016

Understanding The Impact Of Commercial Harvest On White Suckers (Catostomus Commersonii) In Maine, Megan A. Begley

Electronic Theses and Dissertations

The State of Maine issues an unlimited number of commercial permits for the harvest of White Suckers Catostomus commersonii in Maine’s inland waters. The fishery provides a necessary source of fresh lobster Homarus americanus bait to coastal communities at a time when other bait sources are scarce. The impacts of the increasing number of permits and subsequent numbers of fishermen on the white sucker population is unknown. The Maine Department on Inland Fisheries and Wildlife (MDIFW) has closed a number of waters due to concerns that overfishing and incidental catch of other fish species may occur.

In Chapter 1 ...


Physical Modeling Of Vortical Cross-Step Filtration In The Oral Cavity Of American Paddlefish (Polyodon Spathula), Hannah Brooks May 2016

Physical Modeling Of Vortical Cross-Step Filtration In The Oral Cavity Of American Paddlefish (Polyodon Spathula), Hannah Brooks

Undergraduate Honors Theses

This thesis explores the filter-feeding mechanisms of the American paddlefish, Polyodon spathula. The data indicate that paddlefish use a filtration method termed cross-step filtration, which utilizes vortices formed behind the branchial arches by the incoming water flow. Videos of these vortices were obtained and quantified for the first time inside the oral cavities of preserved paddlefish. Since the paddlefish can move the branchial arches within the oral cavity, the effects of changing branchial arch angle on vortex characteristics were studied in 3D models. The vortices in three models with different arch angles were quantified. The data demonstrated that a change ...


Growth Rate Of Copepods In The San Francisco Bay, Brooke Bemowski, Wim Kimmerer, Toni Ignoffo Jan 2016

Growth Rate Of Copepods In The San Francisco Bay, Brooke Bemowski, Wim Kimmerer, Toni Ignoffo

STAR (STEM Teacher and Researcher) Presentations

The San Francisco Estuary is a complex ecosystem. A key part of the foodweb are zooplankton crustaceans, specifically copepods. Many fish, especially the endangered delta smelt, rely on copepods as a food source. Measuring the growth of copepods assists in predictions if enough food is available for delta smelt. Traditionally growth rate is measured through lengthy and involved processes. The objective of this research project is to develop an imaging process to analyze biomass of copepods more efficiently. For this research, field samples of copepods were collected and grown over three days. Subsamples were taken and preserved at three predetermined ...