Exploring The Genetic Variability Of Zebra Mussels Dreisenna Polymoprha, Maxwell Carr

Journal of Earth and Life Science

Zebra Mussels Dreisenna polymorpha are one of the most well-known invasive species here in the United States. This species can take over watersheds very quickly, causing damage to both the ecosystem and man-made structures. The basic physical behavior of this species has been well documented, but the invasive North American Zebra Mussel is much more aggressive and therefore causes more damage in the Great Lakes region compared to its native waters. Genetic variation may be playing a very large role in how and why D. polymorpha is causing such large problems for stakeholders in the United States. This review cites …

Effectiveness Of Endothall Treatment In Reducing Potamogeton Crispus In Lake Julia, Jake Sorensen

Journal of Earth and Life Science

Curly leaf pondweed Potamogeton crispus, is a submerged aquatic plant non-native to North America. It was most likely introduced when common carp Cyprinus carpio were intentionally brought to the Midwest. Endothall is an aquatic herbicide commonly used to control curlyleaf pondweed in lakes. This study focused on collecting data from Lake Julia in Sherburne County, MN. Lake Julia is treated annually in the spring to control curlyleaf pondweed. The results show treatment areas saw a significant increase in vegetation density compared to control areas (P < 0.01). Changes in percent vegetation coverage by date were insignificant (P = 0.24). No significant signs of fish kills were observed. Because this study looked at overall vegetation coverage instead of specifically curlyleaf pondweed, we cannot conclude the increase in vegetation coverage was from curlyleaf pondweed alone. Based on the results from Poovey et al. (2002) we would expect lower vegetation coverage in treatment areas instead of the increased vegetation coverage observed in our study. This suggests the possibility that the endothall treatment successfully killed curlyleaf pondweed in treated areas, which allowed for new growth of submerged aquatic plants to take place as water temperatures increased.

Global Extinction Risk For Seahorses, Pipefishes And Their Near Relatives (Syngnathiformes), Riley A. Pollom, Gina M. Ralph, Caroline M. Pollock, Amanda C.J. Vincent

Biological Sciences Faculty Publications

Few marine taxa have been comprehensively assessed for their conservation status, despite heavy pressures from fishing, habitat degradation and climate change. Here we report on the first global assessment of extinction risk for 300 species of syngnathiform fishes known as of 2017, using the IUCN Red List criteria. This order of bony teleosts is dominated by seahorses, pipefishes and seadragons (family Syngnathidae). It also includes trumpetfishes (Aulostomidae), shrimpfishes (Centriscidae), cornetfishes (Fistulariidae) and ghost pipefishes (Solenostomidae). At least 6% are threatened, but data suggest a mid-point estimate of 7.9% and an upper bound of 38%. Most of the threatened species are …

A Bioinformatic Analysis Of The Biosynthesis Of Carotenoids In The Copepod Tigriopus Californicus, Anchalya Balasubramaniam

Theses and Dissertations (Comprehensive)

Abstract

Biological pigments, also called biochromes, are coloured compounds which are displayed by a variety of life forms, including animals, due to selective colour absorption. The combination of light absorption and reflection enables each pigment to portray a distinct colour which results in the broad spectrum of colours we observe in our surroundings. Carotenoids are a large group of yellow, orange, and red biological pigments found in living organisms. Our current biomolecular knowledge of carotenoids is heavily derived from studying the pathway in photosynthetic prokaryotes, bacteria, fungi, and plants. Carotenoid pigments are exceptionally multifunctional as they act as photo-protectors against …

Geometric Morphometric Analyses Define Riverine And Lacustrine Species Flocks Of Himalayan Snowtrout (Cyprinidae: Schizothorax) In Nepal, Binod Regmi, Marlis R. Douglas, David R. Edds, Michael E. Douglas

Biological Sciences Faculty Publications and Presentations

Freshwater fishes in the river and lake systems in the Himalayas and Tibetan Plateau are morphologically diverged but the evolutionary relationship of putative subspecies separated in these freshwater systems has not been explored. Snowtrout (Schizothorax spp.) are minnows (Cyprinidae) broadly distributed in Asia. Body shapes of 3 Lake Rara (northwest Nepal) endemics (S. macrophthalmus, S. nepalensis, S. raraensis) and 2 widely distributed riverine species (S. progastus, S. richardsonii) across 3 drainages in Nepal (i.e. Karnali, Gandaki, and Koshi Rivers) were studied using geometric morphometry. Data were derived from museum voucher specimens/tissues collected …

Contributions To The Knowledge Of Water Bugs In Mindoro Island, Philippines, With A Species Checklist Of Nepomorpha And Gerromorpha (Insecta, Hemiptera, Heteroptera), Arthien Lovell Pelingen, Herbert Zettel, Clister V. Pangantihon, Kyra Mari Dominique Aldaba, Earl Kevin Fatallo, Jemillie Madonna De Leon, Hendrik Freitag

Biology Faculty Publications

This survey aims to provide an updated species checklist of aquatic and semi-aquatic bugs in the intra-Philippine biogeographic Region of Mindoro. An assessment survey of water bugs (Hemiptera, Heteroptera) was conducted mostly by manual collection in selected areas of Oriental Mindoro from 2017 to 2018, in which some of the collecting activities were undertaken by graduate students of Ateneo de Manila University. Twenty-nine aquatic and semi-aquatic heteropteran species were documented and some are known island-endemic species or subspecies, including Enithares martini mindoroensis Nieser & Zettel, 1999, Hydrotrephes stereoides mindoroensis Zettel, 2003, Aphelocheirus freitagi Zettel & Pangantihon, 2010, Rhagovelia mindoroensis Zettel, …

Blue Swimmer Crab Resource Of South-West Western Australia Harvest Strategy : 2020-2025 : Version 1.0, Department Of Fisheries

Fisheries Management Papers

No abstract provided.

Estuarine And Nearshore Finfish Resource Of South-West Western Australia Harvest Strategy : 2020-2025 : Version 1.0, Department Of Fisheries

Fisheries Management Papers

No abstract provided.

West Coast Deep Sea Crustacean Resource Harvest Strategy 2020-2025, Department Of Fisheries

Fisheries Management Papers

No abstract provided.

Saucer Scallop Resource Of Shark Bay Harvest Strategy : 2020-2025 : Version 1.0, Department Of Fisheries

Fisheries Management Papers

No abstract provided.

Escolar (Lepidocybium Flavobrunneum) Neurocranium, Meredith M. Pratt, Katerina D. Sawickij, David W. Kerstetter

All Scans: Kerstetter Fisheries and Avian Ecology 3D Scan Series

Neurocranium prep of escolar Lepidocybium flavobrunneum obtained from longlining vessel.

Influence Of Characteristics Of Marine Macroalgae On Feeding Preferences Of The Milkfish (Chanos Chanos) In Peninsular Malaysia, Lim Wai Yin

Student Works (2020-2029)

Herbivores can alter several ecological mechanisms including interactions between native and non-native autotrophs that may determine invasion success of the non-native autotrophs. This study looked into the autotroph-herbivore interactions in coastal marine ecosystems of Peninsular Malaysia, mainly to determine if autotroph nutritional components and geographical differences significantly influence herbivore feeding behaviours. The relative consumption rate (RCR) of milkfish (Chanos chanos Forsskål), a generalist herbivore obtained from the Straits of Malacca was documented through feeding trials using 12 macroalgal species collected from different coastal areas of the Straits of Malacca, the Straits of Johor, and the South China Sea. The herbivore …

A Histopathological Review Of Immune Response In Largemouth Bass To Parasitic Infections Of Soft Tissues, James D. Stephenson

Theses and Dissertations

The immune response can serve as a key indicator of a fish’s overall health and the effect stressors have on the health of the fish. Anthropogenic factors can stress a fish’s immune system and inhibit immune responses. This study investigated the response of eosinophilic cells and macrophage aggregates to parasites in the livers, spleens, and gonads of Largemouth Bass, Micropterus salmoides. Largemouth Bass were sampled from three bodies of water in the Chattahoochee Valley of varying levels of urbanization. Histopathology of the aforementioned organs was conducted to observe both the parasite density and immune response. Eosinophilic cells were shown …

The Potential Impacts Of Soy Protein On Fish Gut Health, Vikas Kumar, Sakhawat Hossain, Janice A. Ragaza, Marina Rubio Benito

Biology Faculty Publications

Soy protein is the major source of protein as fishmeal replacement in fish feed because of its worldwide availability and low price. However, the presence of high carbohydrate content along with saponins, lectins, and phytates can have a negative impact on fish gut health. Based on the literature and our lab studies, dietary soybean meal can cause a dose-dependent type of distal intestine inflammation called enteritis in commercial fish species including salmonids. This leads to reduced absorptive capacity, increased mucus secretion, hyperpermeability, and leucocyte infiltration in the lamina propria and submucosa, also inducing the pro-inflammatory cytokine genes expression, including Il-1β, …

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 ± …

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 …

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.

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 …

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 …

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 …

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 …

Gascoyne Demersal Scalefish Resource: Oceanic Pink Snapper Recovery Plan 2018-2037, Department Of Fisheries

Fisheries Management Papers

No abstract provided.

Draft : Estuarine And Nearshore Finfish Resource Of South-West Western Australia Harvest Strategy : 2020-2025 : Version 2.0, Department Of Fisheries

Fisheries Management Papers

No abstract provided.

Draft : Blue Swimmer Crab Resource Of South-West Western Australia Harvest Strategy : 2020-2025 : Version 2.0, Department Of Fisheries

Fisheries Management Papers

No abstract provided.

West Coast Rock Lobster Whale Entanglement Mitigation Workshop, Jason How, L Orme, Graeme Baudains, Pia Dobson, M Taylor, Simon De Lestang

Fisheries Occasional Publications

No abstract provided.

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 …

Spatial Contrasts In Hepatic And Biliary Pahs In Tilefish (Lopholatilus Chamaeleonticeps) Throughout The Gulf Of Mexico, With Comparison To The Northwest Atlantic, Susan M. Snyder, Jill A. Olin, Erin L. Pulster, Steven A. Murawski

Michigan Tech Publications, Part 1

A multinational demersal longline survey was conducted on the Gulf of Mexico continental shelf over the years 2015 and 2016 to generate a Gulf-wide baseline of polycyclic aromatic hydrocarbon (PAH) concentrations in demersal fishes. Tilefish (Lopholatilus chamaeleonticeps) were sampled in all regions of the Gulf of Mexico for biometrics, bile, and liver. Tilefish liver was also obtained from surveys in the northwest Atlantic Ocean for comparison. Liver tissues (n ¼ 305) were analyzed for PAHs and select alkylated homologs using QuEChERS extractions and gas chromatography tandem mass spectrometry. Bile samples (n ¼ 225) were analyzed for biliary PAH metabolites using …