Aquaculture and Fisheries Commons^™

Molecular Characterisation Of Hsp70 Gene Expression, Histopathology And Immune System Of Snakehead Fish, Channa Striata, Under Temperature And Bacterial Stress, Eid Elhussein Ihlam Ibrahim

Student Works (2020-2029)

Snakeheads are air-breathing freshwater fishes containing two genera, Channa (Asia) and Parachanna (Africa). The Asian genus is dominated by Channa striata which is found in southern and Southeastern parts of the continent. In this research, environmental and bacteria stressor to Channa striata were investigated. HSP70 gene was studied as an environmental stress gene (ChHSP70). Results showed a cDNA sequence of the gene to be (~918bp). It was also shown the gene is highly similar to that of other fish species. Constructing a phylogenetic tree of the gene across vertebrate species revealed six main clusters; same class remained conserved by showing …

Growth And Immune Response Of Pond-Reared Giant Freshwater Prawn Macrobrachium Osenbergii Post Larvae Fed Diets Containing Chlorella Vulgaris, Gian Carlo F. Maliwat, Stephanie F. Velasquez, Sheila Marie D. Buluran, Melchor Tayamen, Janice A. Ragaza

Biology Faculty Publications

A 70-day feeding trial was conducted to evaluate the efficacy of Chlorella vulgaris supplementation in diets of giant freshwater prawn (Macrobrachium rosenbergii) post larvae. Resistance of the prawns against Aeromonas hydrophila and several immune parameters (total hemocyte count and prophenoloxidase activity) were also assessed in the study. Iso-nitrogenous, iso-lipidic, and iso-caloric prawn feeds were prepared utilizing a fishmeal based positive control diet (F0) and four dietary treatments with C. vulgaris inclusion levels of 2 (F2), 4 (F4), 6 (F6), and 8 (F8) %. Post larvae of M. rosenbergii were stocked randomly (mean initial body weight of 0.39 ± …

Identification And Phylogenetic Analysis Of Channa Species From Riverine System Of Pakistan Using Coi Gene As A Dna Barcoding Marker, Muhammad Kamran, Atif Yaqub, Naila Malkani, Khalid Mahmood Anjum, Muhammad Nabeel Awan, Hamed Paknejad

Journal of Bioresource Management

Channa are the freshwater and important food fish species in Pakistan belonging to family Channidae. However, identification and phylogenetic analysis based on molecular tools of these species in Pakistan was not well known. Herein, the current investigation was conceptualized, which dealt with mitochondrial DNA sequences from three geographically distinct populations of this species from Pakistan’s water system. DNA from fin tissues was extracted. COI region of mtDNA was amplified using universal primers for fish. PCR products were sequenced. Phylogenetic analysis conducted in the present study, i.e. neighbor-joining (NJ) cladogram, maximum likelihood, K2P genetic divergence and histogram suggests that the studied …

Fish Community Composition And Structure Near A Freshwater River Diversion In Southeastern Louisiana, Rachel L. Snider

LSU Master's Theses

Gulf of Mexico estuaries, particularly in Louisiana, are among the world’s most productive, with landings of commercially- and recreationally-important species exceeding all other contiguous US states. Coastal wetlands are disappearing at an alarming rate because they have been impounded from Mississippi River water and sediment. Although controversial, one proposed solution is to re-route the Mississippi River through diversions and siphons to supply the freshwater and sediments necessary to rebuild vanishing wetlands, particularly in Barataria Bay and Breton Sound, LA. This strategy is one approach outlined in the Louisiana Coastal Master Plan. This project aimed to describe the composition and structure …

Understanding Recruitment Variation (Including The Collapse) Of Ballot’S Saucer Scallop Stocks In Western Australia And Assessing The Feasibility Of Assisted Recovery Measures For Improved Management In A Changing Environment. Frdc Project No. 2015/026, Arani Chandrapavan, Mervi Kangas, Nick Caputi

Fisheries Research Reports

This study examined possible contributing environmental factors to the recruitment variability of the Ballot’s saucer scallop Ylistrum balloti across the main stocks in Western Australia. The project was undertaken to explain the variation observed between years and between regions as well elucidating the potential cause of a major decline in scallop stocks following an extreme marine heatwave, with these findings intended to improve future management advice.

Blue Swimmer Crab ( Portunus Armatus ) And Sand Crab ( Ovalipes Australiensis ) Resource In The South Coast Bioregion Of Western Australia, D Johnston, David Harris, Daniel Yeoh

Fisheries Research Reports

The blue swimmer crab (Portunus armatus) is found along the entire coastline of Western Australia (WA) in a range of estuarine, inshore and continental shelf areas (<50 >m). In the South Coast Bioregion (SCB), blue swimmer crabs are retained as by-product in commercial nets of the 25 licences operating in the South Coast Estuarine Managed Fishery (SCEMF) and targeted by purpose-designed crab traps allocated to fishers in Princess Royal and Oyster Harbours in Albany.

Blue Swimmer Crab ( Portunus Armatus ) And Mud Crab Scylla Serrata And Scylla Olivacea ) Resources In The North Coast And Gascoyne Coast Bioregions, Western Australia, D Johnston, Daniel Yeoh, David Harris, E Fisher

Fisheries Research Reports

Blue swimmer crab (Portunus armatus) are found along the entire Western Australia (WA) coast, in a range of estuarine, inshore and continental shelf areas (<50 >m). In the North Coast Bioregion (NCB), commercial fishing primarily occurs as part of the Pilbara Crab Managed Fishery (PCMF) which spans the inshore waters from Onslow through to Port Hedland, with most fishing activity taking place around Nickol Bay.

West Coast Demersal Scalefish Resource Harvest Strategy 2021-2025 : Version 1.0, Department Of Fisheries

Fisheries Management Papers

No abstract provided.

Integrated Fisheries Management Draft Allocation Report – West Coast Demersal Scalefish, Department Of Fisheries

Fisheries Management Papers

No abstract provided.

Cultivating Cooperatives: Benefits And Challenges Of Co-Ops And Recommendations For Maine’S Emerging Aquaculture Industries, Phoebe Walsh

All Theses And Dissertations

Two emerging Maine industries, kelp (Saccharina latissimi and Saccharina angustissima) and Atlantic sea scallop (Placopecten magellanicus) aquaculture, have enormous market, environmental, and social potential but are faced with challenges of small scale and limited operations, inadequate infrastructure, market visibility, and limited expertise. Because many industries, particularly the dairy industry, have benefited from the use of cooperatives (co-ops) to aggregate an extremely perishable product, quickly process and effectively market and distribute, this research explores the cooperative model as a potential tool for the nascent scallop and kelp industries. Aquaculture co-ops are new in Maine. The first, the …

The Consequences Of Non-Native Species Invasions On The Contemporary And Historic Trophic Ecology Of Native Sport Fish In A Lake Michigan Embayment, John Whitinger

All NMU Master's Theses

The widespread establishment of dreissenid mussels (Dreissena spp.) in Lake Michigan has strongly altered energy flow by sequestering nutrients in nearshore benthic habitats. Despite these ecosystem changes, little is known about their influence on resource partitioning in nearshore fish communities. Here we use stable isotope analysis to characterize the contemporary fish community and historic walleye (Sander vitreus) population of Lake Michigan’s Little Bay de Noc. We found species-specific differences in the δ¹⁵N and δ¹³C values for 14 fish species. High degrees of niche overlap between walleye, northern pike (Esox lucius), …

Prediction Of Feed Utilization Performance In Clarias Gariepinus Using Multiple Linear Regression In Machine Learning, Adekunle Oluwatosin Familusi

Journal of Bioresource Management

Machine learning models can be used to make predictions about nutrient utilization performance index using available proximate analysis data on feed composition. Data from similar experiments on nutrient utilization performance was used to fit a multiple linear regression model for the prediction of four performance indexes. The Specific Growth Rate and percentage inclusion with strength of 0.57 was noted along with a negative relationship between protein efficiency and protein content. A negative relationship between Nitrogen Free Extract (NFE) and Protein Efficiency Ratio (PER) at NFE content ≥25 % was observed. PER was predicted with 85 % accuracy, while Weight Gain …

Utah Land Management Evaluation And Assessment Network Needs Assessment, Jordan Smith

All Current Publications

It can be difficult to make and implement land management decisions that are informed by the best available science, satisfy different stakeholders, and are compliant with established policies and regulations. Local, state, and federal entities with the capacity to influence land management decisions, can benefit from an understanding of the shared needs of landowners and managers. This needs assessment reports on the shared information, funding, and research needs expressed by land managers and owners throughout Utah who make decisions about: (1) fire prevention and suppression; (2) livestock grazing; (3) fisheries; or (4) wildlife. The report provides a high-level assessment of …

Blue Swimmer Crab Resource Of Shark Bay Harvest Strategy : 2020-2025 : Version 1.0, Department Of Fisheries

Fisheries Management Papers

No abstract provided.

Saucer Scallop Resource Of The Abrolhos Islands Harvest Strategy : 2020 - 2025 : Version 1.1, Department Of Fisheries

Fisheries Management Papers

No abstract provided.

Exopolysaccharide From The Liquid Culture Of Ganoderma Lucidum As Feed Additive For Red Hybrid Tilapia (Oreochromis Sp.), Thiran Jaganath Puvanen

Student Works (2020-2029)

Feed additive plays a significant role in sustaining fish production. Exopolysaccharide (EPS) obtained from the fermented mycelium of Ganoderma lucidum produced by using submerged-liquid fermentation (SLF) was proposed as a feed additive in this study for red hybrid tilapia (Oreochromis sp.). Body composition, organosomatic indices, and haematological parameters were observed in fish fed with three different diets supplemented with EPS (1 g/kg, 2 g/kg, and 3 g/kg). Although higher concentration EPS feed was observed to produce minor effect on body composition and organosomatic indices, significant effect on both parameters was observed in fish fed with 1 g/kg diet. All diets …

Expression Of Stress Related Genes Of Penaeus Varnamei In Biofloc Closed Breeding System, Truong An Nguyen

Student Works (2020-2029)

The Pacific shrimp Penaeus vannamei, which is also known as the whiteleg shrimp, is fast becoming a key species of shrimp farming worldwide since this species has been cultured widely in many countries, such as Mexico, America, especially in Southeast Asian countries including Thailand, Vietnam, and Malaysia. In addition, the shrimp aquaculture industry has applied many new cultural techniques, especially biofloc technology – which is an eco-friendly culture technique and has many advantages over other traditional methods, such as high productivity, the stable environment of the culture, and low levels of feed conversion. Unfortunately, for so many years, shrimp farming …

Performance Of Mycelial Biomass From The Mushroom Ganoderma Lucidum As Feed Additive On Growth And Quality Of Red Hybrid Tilapia (Oreochromis Spp.), Yerima Grema

Student Works (2020-2029)

The present study describes the potentiality of dietary supplement of mycelial biomass of Ganoderma lucidum (MBGL) as functional feed additives formulated along with other feed ingredients at different inclusion levels (5g/kg diet, 10g/kg diet and 15g/kg diet). A hundred and twenty (120) red hybrid tilapia were used for this experiment in duplicates treatment. Fifteen fish were allocated to each tank with an average weight of 17.0g. A six (6) week feeding trial was conducted to evaluate the effect of GL biomass on red hybrid tilapia body composition, organosomatic index, as well as hematological indices. At the end of the feeding …

Authentication Of Red Snapper (Lutjanus Campechanus) Fillets Using A Combination Of Real-Time Pcr And Dna Barcoding, Rachel B. Isaacs, Rosalee S. Hellberg

Food Science Faculty Articles and Research

Red snapper (Lutjanus campechanus) is a historically overfished and highly valued species that is commonly substituted with other fish, such as tilapia, rockfish, and other snapper species. The objective of this study was to assess the ability of real-time PCR to be used as a screening tool to rapidly test commercial fillets for the presence of red snapper, followed by species identification of negative samples with DNA barcoding. A total of 24 frozen, fresh, or thawed (previously frozen) fillets labeled as “red snapper” were tested with real-time PCR, along with 54 fillets from fish that are common substitutes …

A Methodological Review Of Resilience Approaches For Coral In The Face Of Climate Change, Gabriella L. Martinez

University Honors Theses

A literature review of research on Resilience Based Management Theory, Aquaculture, and Assisted Gene Flow and Evolution being explored as possible methods to help the coral bleaching crisis.

Physiological And Behavioral Correlates Of Hif-1 Alpha Protein Levels In The Gulf Killifish, Fundulus Grandis, Jasmine Harris

LSU New Orleans Theses and Dissertations

Although the hypoxia-inducible transcription factor (HIF) orchestrates molecular responses to low oxygen, the amount of HIF-1α protein expressed during hypoxia varies among species, individuals, and tissues. This study measured HIF-1α protein levels along with several physiological and behavioral variables in the estuarine fish Fundulus grandis under normoxia (> 7 mg l^-1 dissolved oxygen) and hypoxia (1 mg l^-1 dissolved oxygen). Fish under hypoxic conditions had higher tissue levels of HIF-1α, hematocrit, blood glucose, blood lactate, frequency of aquatic surface respiration (ASR), and lower activity than normoxic controls. Under hypoxia, HIF-1α abundance in gill was positively correlated with body …

Size Selective Parasitism Of Rainbow Trout (Oncorhynchus Mykiss) By Chestnut Lampreys (Ichthyomyzon Castaneus) In An Artificial Setting, Jeremiah M. Salinger, Ronald L. Johnson

Southeastern Fishes Council Proceedings

Paradigms of optimal resource utilization by animals, both classical and more recent, were not originally developed in the context of parasitism. Though this oversight has slowly been reversed, little attention has been paid to optimal resource utilization by parasitic fishes, such as lampreys. Multiple explanations for host size selection by parasitic lampreys may be plausible, but results from previous studies have been inconsistent. We studied host size selection by Chestnut Lampreys (Ichthyomyzon castaneus) parasitizing Rainbow Trout (Oncorhynchus mykiss) in fish hatchery raceways in north central Arkansas during the late winter and early spring of 2013. Parasitized …

Movement Of Translocated Adult Sicklefin Redhorse (Moxostoma Sp.) In The Oconaluftee River, North Carolina: Implications For Species Restoration, Jessica L. Davis, David P. Gillette, C. Reed Rossell Jr., Michael J. Lavoie

Southeastern Fishes Council Proceedings

The Sicklefin Redhorse is a rare, undescribed species of Moxostoma, endemic to the Hiwassee and Little Tennessee River basins of western North Carolina and northern Georgia, where it has been eliminated from much of its native range. It is listed as endangered in Georgia and threatened in North Carolina. Although it has not been granted federal protected status, this species is the subject of a Candidate Conservation Agreement between federal, state, tribal, and private stakeholders, of which one objective calls for the re-establishment of Sicklefin Redhorse populations throughout its historical range. The objective of our study was to evaluate …

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 Gut Microbiome And Its Potential Role In Paradoxical Anaerobism In Pupfishes Of The Mojave Desert, Brian Hedlund

Life Sciences Faculty Research

Background: Pupfishes frequently enter paradoxical anaerobism in response to endogenously produced or exogenously supplied ethanol in a dose-dependent manner. To decipher the role of the gut microbiota in ethanol-associated paradoxical anaerobism, gut microbial communities were depleted using a cocktail of antibiotics and profiled using 16S rRNA gene sequencing. Results: Compared to the control group (n = 12), microbiota-depleted fish (n = 12) spent more time in paradoxical anaerobism. Our analysis indicated that the bacterial phyla Proteobacteria, Fusobacteria, Bacteroidetes, Firmicutes, Actinobacteria, Patescibacteria, and Dependentiae dominated the pupfish gut, which is consistent with other fish gut microbiota. Although the gut microbial communities …

Effect Of Fire Suppression On Aquatic Invertebrates In Ephemeral Wetlands Embedded In Longleaf Pine Forests, Hailey E. Baker

Honors College Theses

It has been established for many years that longleaf pine forests require the ecological disturbance of fire in order to maintain a balanced ecosystem. However, a crucial part of these forests has become nearly excluded from prescribed burning. Ephemeral wetlands embedded within longleaf pine forests are a unique and dynamic seasonal habitat that provide homes, refuge, and breeding grounds for a large array of taxa. Past research suggests that fire suppression around ephemeral wetlands is causing harm to many species of amphibians and other herpetofauna, especially threatened species like the flatwoods salamander. However, other species have not been as well …

Is Anyone Home? Year Round Site Fidelity Vs. Temporal Territories In Estuarine Blennies, Nicholas Govostes

Honors Theses

Temperate oyster reef blennies use articulated oyster shells as nest sites in warmer months during breeding season but little is known about their site fidelity during non-breeding season. Unlike coral reef blennies that occupy territories year-round, rocky intertidal temperate blenny species display temporal territories and seasonally migrate into breeding shelters. Striped blenny (Chasmodes bosquianus) shelter use was described from November 2019 through March 2020 at Oyster Landing, North Inlet estuary, SC to quantify the proportion of daylight hours when fish were in residence and describe potential relationships between shelter occupancy and neighboring fishes. Replicate PVC shelters were monitored …

Development Of Methods To Track Oyster Movement Under Field Conditions In North Inlet Estuary, South Carolina, Alyssa M. Leclaire

Honors Theses

Eastern oyster (Crassostrea virginica) reefs provide important habitat structure and ecosystem services in saltmarsh tidal creek estuaries. Reef persistence depends on growth of resident individuals and regular recruitment to maintain suitable shell substrate. Boat wakes potentially physically displace oyster clumps. The objective of this research was to develop methods to track oyster clump position and biomass on two natural fringing oyster reefs in North Inlet estuary, South Carolina. Boat traffic (number of boats making wakes per day), oyster clump displacement (cm/d) over time, oyster biomass (g dry tissue), and condition index (biomass/g dry shell weight) were quantified from …

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

Biological Sciences Faculty Research & Creative Works

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 …

Blue Swimmer Crab ( Portunus Armatus ) Resource In The West Coast Bioregion, Western Australia Part 2: Warnbro Sound, Comet Bay, Mandurah To Bunbury, Leschenault Estuary, Geographe Bay An D Hardy Inlet, D Johnston, David Harris, Daniel Yeoh

Fisheries Research Reports

Blue swimmer crabs (Portunus armatus) are found along the entire coastline of Western Australia in a range of estuarine, inshore and continental shelf environments (<50 >m).

Crab fisheries in the West Coast Bioregion are centred in the estuaries and coastal embayments from the Swan-Canning Estuary south to Geographe Bay. Major commercial and recreational fisheries in this Bioregion include the Cockburn Sound Crab Managed Fishery, the Swan-Canning Estuary Crab Fishery (Area 1 of the West Coast Estuarine Managed Fishery), and the Peel-Harvey Crab Fishery (Area 2 of the West Coast Estuarine Managed Fishery). Refer to Johnston et al. …