Relevant bibliographies by topics / Aquatic insects – alaska – identification

Academic literature on the topic 'Aquatic insects – alaska – identification'

Author: Grafiati
Published: 25 July 2024
Last updated: 26 July 2024

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Journal articles on the topic "Aquatic insects – alaska – identification"

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Francis, Tessa B., Daniel E. Schindler, and Jonathan W. Moore. "Aquatic insects play a minor role in dispersing salmon-derived nutrients into riparian forests in southwestern Alaska." Canadian Journal of Fisheries and Aquatic Sciences 63, no. 11 (November 1, 2006): 2543–52. http://dx.doi.org/10.1139/f06-144.

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Recent research has highlighted the importance of nutrients derived from Pacific salmon (Oncorhynchus spp.) carcasses for coastal freshwater and riparian ecosystems. To investigate the role of emerging aquatic insects in dispersing salmon nutrients from spawning streams to riparian habitats, we quantified the emergence and return rates of mayflies (Ephemeroptera), stoneflies (Plecoptera), and caddisflies (Trichoptera) on Pick Creek in southwestern Alaska and, using stable isotopes, estimated the associated flux of nutrients derived from sockeye salmon (Oncorhynchus nerka) to streamside forests. Between June and September of 2004, 7.6 mg·m–2 of salmon-derived nitrogen emerged from Pick Creek in the form of aquatic invertebrates, 6.7 mg·m–2 of which was transferred to the terrestrial ecosystem. Dispersal patterns on four area streams showed that the majority of stream-borne nutrients are deposited within 25 m of the stream. Aquatic insects represent a minor vector for salmon nutrients to terrestrial systems, dispersing less than 0.03% of total nitrogen imported to Pick Creek by spawning salmon. Nevertheless, emerging insects make available salmon-derived resources otherwise inaccessible to some terrestrial consumers.
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Badanaro, Fegbawe, Pelei Tagba, and Mamatchi Melila. "Aquatic Insects Consumed in Togo: Diversity and Nutritional Potential." European Journal of Nutrition & Food Safety 16, no. 7 (July 4, 2024): 336–47. http://dx.doi.org/10.9734/ejnfs/2024/v16i71484.

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This study identified the species of aquatic insects consumed in Togo, and determined the chemical composition of the most common species (Cybister tripunctatus (Sharp, 1882) (Coleoptera: Dytiscidae)). This was achieved through ethnoentomological surveys and species identification at the insectarium of the University of Lomé and it provided information on aquatic insects consumed in Togo. Samples of C. tripunctatus were collected in the three localities where ethnoentomological surveys were carried out. Ash, protein, vitamin and lipid contents were determined according to AOAC reference methods. Fiber content was determined using the Weende method. Minerals were analyzed by atomic absorption spectrophotometry and colorimetry. Lipid composition in fatty acids was determined by gas chromatography, and protein composition in amino acids was determined by separation of amino acids using the Biochrom 30+ analyzer. Forty-five out of 120 people interviewed from the Moba ethnic group said they occasionally consumed adult dytics. Four species consumed by this aborigine population was identified. None of these species is sold commercially. According to the respondents, the consumption of dytics is motivated by their nutritional and therapeutic virtues. C. tripunctatus consists of 10.32% moisture, 36.52% proteins, 26.98% lipids, 12.60% fibers, 4.94% carbohydrates, and has an energy value of 1804.19 kJ/100g. All essential amino acids are present in C. tripunctatus. Lipids are rich in unsaturated fatty acids, particularly essential fatty acids. In terms of micronutrient composition, the species studied is rich in minerals and vitamins. The mineral content is 10.32% and depends on the nature of the minerals present. Vitamins content also varies. The ratios of minerals, and fatty acids are balanced. These data show the socio-economic importance of dytics consumed in Togo and the quantitative and qualitative richness of C. tripunctatus in nutrients. This species could therefore contribute to the nutritional balance of consumers.
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Larson, Wesley A., James E. Seeb, Carita E. Pascal, William D. Templin, and Lisa W. Seeb. "Single-nucleotide polymorphisms (SNPs) identified through genotyping-by-sequencing improve genetic stock identification of Chinook salmon (Oncorhynchus tshawytscha) from western Alaska." Canadian Journal of Fisheries and Aquatic Sciences 71, no. 5 (May 2014): 698–708. http://dx.doi.org/10.1139/cjfas-2013-0502.

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Genetic stock identification (GSI), an important tool for fisheries management that relies upon the ability to differentiate stocks of interest, can be difficult when populations are closely related. Here we genotyped 11 850 single-nucleotide polymorphisms (SNPs) from existing DNA sequence data available in five closely related populations of Chinook salmon (Oncorhynchus tshawytscha) from western Alaska. We then converted a subset of 96 of these SNPs displaying high differentiation into high-throughput genotyping assays. These 96 SNPs (RAD96) and 191 SNPs developed previously (CTC191) were screened in 28 populations from western Alaska. Regional assignment power was evaluated for five different SNP panels, including a panel containing the 96 SNPs with the highest FST across the CTC191 and RAD96 panels (FST96). Assignment tests indicated that SNPs in the RAD96 were more useful for GSI than those in the CTC191 and that increasing the number of reporting groups in western Alaska from one to three was feasible with the FST96. Our approach represents an efficient way to discover SNPs for GSI and should be applicable to other populations and species.
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White, Helen K., Alexandra E. Morrison, Charvanaa Dhoonmoon, Hasibe Caballero-Gomez, Michelle Luu, Camille Samuels, Charles T. Marx, and Anna P. M. Michel. "Identification of persistent oil residues in Prince William Sound, Alaska using rapid spectroscopic techniques." Marine Pollution Bulletin 161 (December 2020): 111718. http://dx.doi.org/10.1016/j.marpolbul.2020.111718.

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Milosavljević, Aleksandar, Đurađ Milošević, and Bratislav Predić. "SPECIES IDENTIFICATION FOR AQUATIC BIOMONITORING USING DEEP RESIDUAL CNN AND TRANSFER LEARNING." Facta Universitatis, Series: Automatic Control and Robotics 20, no. 1 (April 14, 2021): 001. http://dx.doi.org/10.22190/fuacr201118001m.

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Aquatic insects and other benthic macroinvertebrates are mostly used as bioindicators of the ecological status of freshwaters. However, an expensive and time-consuming process of species identification represents one of the key obstacles for reliable biomonitoring of aquatic ecosystems. In this paper, we proposed a deep learning (DL) based method for species identification that we evaluated on several available public datasets (FIN-Benthic, STONEFLY9, and EPT29) along with our Chironomidae dataset (CHIRO10). The proposed method relies on three DL techniques used to improve robustness when training is done on a relatively small dataset: transfer learning, data augmentation, and feature dropout. We applied transfer learning by employing ResNet-50 deep convolutional neural network (CNN) pretrained on ImageNet 2012 dataset. The results show significant improvement compared to original contributions and confirms that there is a considerable gain when there are multiple images per specimen.
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Scudder, G. G. E. "AQUATIC AND SEMIAQUATIC HEMIPTERA OF PEATLANDS AND MARSHES IN CANADA." Memoirs of the Entomological Society of Canada 119, S140 (1987): 65–98. http://dx.doi.org/10.4039/entm119140065-1.

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AbstractThirteen families containing 138 species of aquatic and semiaquatic Hemiptera have so far been recorded from Canada. The identification of these presents few real difficulties and so the general occurrence of the taxa across the country is fairly well known. Although there has been no intensive study of the Hemipterous insects in peatlands and marshes, the 61 species so far reported from marshes, 32 from fens, and the 33 from bogs appear to be facultative rather than obligatory inhabitants of these habitats. All have been found in other habitats and probably most lentic species occur in marsh habitats. All aquatic and semiaquatic bugs are predators, and most overwinter as adults. Environmental–physiological study of species occurring in bogs has just begun, but evidence suggests that many species have the ability to regulate their internal milieu in water with pH below 4.6–4.7. However, further experiments are needed to determine the physiological limits of tolerance of these insects, the details of osmotic and ionic regulation, and acid–base balance in low-pH water. More collecting is needed in bogs, fens, and marshes, and the life cycle and biology of the Hemiptera occurring in peat-lands still require intensive study.
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Danks, H. V., and David M. Rosenberg. "AQUATIC INSECTS OF PEATLANDS AND MARSHES IN CANADA: SYNTHESIS OF INFORMATION AND IDENTIFICATION OF NEEDS FOR RESEARCH." Memoirs of the Entomological Society of Canada 119, S140 (1987): 163–74. http://dx.doi.org/10.4039/entm119140163-1.

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AbstractAvailable information on the insect fauna of freshwater bogs, fens, and marshes is reviewed. These habitats are extensive and important in Canada. The fauna of marshes is diverse, and appears to consist chiefly of generally distributed lentic species. The fauna of bogs has some specialized elements, but most bog species are generalists. The fauna of Canadian fens is little known, but from limited data for a few groups appears to be moderately rich. Features expected in generalist and specialist species from peatlands and marshes are summarized, and the possible roles of insects in these ecosystems are outlined. Particular needs for future research include the following: careful definition of different kinds of wetland habitats; meticulous sampling of defined habitats to distinguish residents from incidental visitors; and detailed study of the life histories and habits of individual species. Further sampling, and studies of larvae, undoubtedly will increase the numbers of insects known from Canadian peatlands and marshes. About 4000 aquatic insect species are known from Canada. So far only 22% of the species in groups for which detailed information is available have been reported to occur in marshes, and only half as many in peatlands, even though some of the recorded species probably do not breed in all of the habitats from which they have been collected.
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Spigoloni, Zander Augusto, José Vinícius Bernardy, Leandro Schlemmer Brasil, Karina Dias-Silva, Thiago Bernardi Vieira, and Paulo De Marco. "Odonata Concordance amongst aquatic taxa in brazilian savanna streams." International Journal of Odonatology 25 (June 22, 2022): 80–88. http://dx.doi.org/10.48156/1388.2022.1917178.

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Environmental management is one of the most important activities in ecological conservation at present. Faced with various socioeconomic impacts (e.g., urbanization, agriculture, and logging), practical and effective ways to analyze and determine how biodiversity is affected by these anthropogenic activities are essential. Utilizing niche theory helps to understand how similar groups of organisms respond to environmental changes based on the assumption that organisms with some niche overlap (i.e., similar resources) will respond similarly to these changes. Members of the order Odonata are frequently used as biological indicators due to their low survey costs, relatively easy taxonomic identification, and sensibility to environmental changes. In this study, using the PROTEST method, we analyze the cross-taxon congruence between Odonata and two aquatic organisms in Brazilian savanna streams: Gerromorpha and fishes. Although congruence was found between aquatic insects (~ 45%), this result changed when we only considered the species’ genera: no congruence for the aquatic insects was found, but instead we found a congruence between Odonata and fishes (~ 44%). Since Odonata showed congruence with the other groups in different taxonomical resolutions and it is a relatively easy and cheap group to collect and identify, we suggest that Odonata could be used as an indicator of disturbance for this set of organisms and hence serve as an alternative method to traditional environmental management techniques.
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Menabit, Selma, Lavinia Iancu, Ana B. Pavel, Adrian Popa, Naliana Lupascu, and Cristina Purcarea. "Molecular identification and distribution of insect larvae in the Lower Danube River." Oceanological and Hydrobiological Studies 51, no. 1 (March 25, 2022): 74–89. http://dx.doi.org/10.26881/oahs-2022.1.07.

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As a major component of freshwater ecosystems, insect species play an important role in nutrient cycling and are often used as bioindicators of water pollution. Although extensive studies have characterized insects from freshwater habitats, little is known about the distribution of these species along the Lower Sector of the Danube River. Therefore, this survey conducted in the Danube section within the Romanian territory aimed to identify insect larvae belonging to seven different species of Odonata, Trichoptera, Ephemeroptera, Lepidoptera and Megaloptera by DNA barcoding and to investigate their distribution, density and frequency. A total of 41 quantitative macrozoobenthic samples were collected during two consecutive years (2019 and 2020). Species showed large differences in the distribution and density along different sections, and an overall tendency to populate downstream areas, except for Sialis morio. On the other hand, only Hydropsyche bulgaromanorum, Triaenodes bicolor and S. morio larvae were identified in the upstream section (Sulina branch). These data provide baseline information on the larger range of some of the most common aquatic insects in the Romanian Danube section in relation to several environmental parameters based on the first molecular identification of these species using COI gene sequencing.
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Heintz, Ron A., Mark S. Wipfli, and John P. Hudson. "Identification of Marine-Derived Lipids in Juvenile Coho Salmon and Aquatic Insects through Fatty Acid Analysis." Transactions of the American Fisheries Society 139, no. 3 (May 2010): 840–54. http://dx.doi.org/10.1577/t09-115.1.

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Dissertations / Theses on the topic "Aquatic insects – alaska – identification"

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Mott, Jason M. "Identification and characterization of survival mechanisms of the Human Granulocytic Ehrlichiosis Agent and identification and characterization of an Ehrlichia Risticii Strain isolated from Aquatic Insects and Horse isolates /." The Ohio State University, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=osu1486399451962255.

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Delaunay, Mathilde. "Comment faciliter l'identification de l'entomofaune ? : Construction, évaluation et amélioration de clés d'identification numériques." Thesis, Paris, Muséum national d'histoire naturelle, 2019. http://www.theses.fr/2019MNHN0009.

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Les clés d’identification numériques représentent des outils efficaces pour identifier les êtres vivants, et sont également utilisées dans le cadre de programmes de sciences participatives. Accessible en ligne, la plateforme Xper3 permet de créer des bases de données de biodiversité et de générer des clés d’identification interactives. Ce travail de thèse a testé diverses approches dans l’objectif de faciliter l’identification de l’entomofaune de France, en particulier de groupes d’insectes vivant dans des milieux menacés, ou ayant une importance écologique et patrimoniale notable : les coccinelles et quatre ordres d’insectes aquatiques (odonates, éphémères, plécoptères et coléoptères), aux stades larvaires et adultes. Nous avons créé pour ces groupes sept clés d’identification numériques fiables, intuitives et accessibles à tous les publics, disponibles à l’adresse web suivante : infosyslab.fr/?q=fr/node/113. Grâce au système Xperience permettant d’enregistrer le détail des identifications réalisées par les utilisateurs des clés Xper3, nous avons testé l’utilisation de notre clé des larves d’odonates et celle de la clé ‘’Insectes’’ du programme de sciences participatives Spipoll sur les insectes pollinisateurs. Nous avons ainsi pu mieux comprendre comment ces clés numériques sont utilisées et quels problèmes sont rencontrés par leurs utilisateurs. Des pistes d’amélioration ont été proposées pour rendre les clés d’identification plus efficaces et faciles à prendre en main. Le travail réalisé dans cette thèse a également montré que la précision des clés d’identification augmente avec l’intégration de critères écologiques en sus des caractères morpho-anatomiques. Cet ajout est particulièrement pertinent pour les jeunes larves d’insectes aquatiques, qui peuvent ne pas être identifiables à l’espèce avec les données morpho-anatomiques seules
Digital identification keys are effective tools for identifying plants and animals, and are also used in citizen science programs. Accessible online, the Xper3 platform makes it possible to create biodiversity databases and to generate interactive identification keys.We investigated various approaches in order to facilitate the identification of French entomofauna, especially some insect taxa living in endangered environments, or having ecological and heritage significance: ladybirds and three orders of aquatic insects (dragonflies and damselflies, mayflies, stoneflies and beetles), at the larval and adult stages. For all these groups, we created seven digital identification keys that are reliable, intuitive and accessible to everybody, available online at the following address: infosyslab.fr/?q=fr/node/113. Thanks to the Xperience system that can to record details of the identifications made by the Xper3 key users, we surveyed the use of our key for odonate larvae and the ‘’Insects’’ key of the citizen science program on pollination Spipoll. We were able to better understand how these digital keys are used and what problems are encountered by their users. Areas for improvement were proposed to make identification keys more effective and easier to use. Our work also showed that the precision of digital identification keys increases when ecological data are integrated alongside morpho-anatomical characters. This addition is particularly relevant for young aquatic insect larvae, for which the identification at the species level can be impossible with morpho-anatomical data alone
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Books on the topic "Aquatic insects – alaska – identification"

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Fikri, Arman Hadi. Aquatic insects identification guide. Kota Kinabalu, Sabah, Malaysia: Research & Education Component of the BBEC Programme, 2005.

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Forum, Kenai Watershed, ed. Insects of south-central Alaska. Soldotna, Alaska: Kenai Watershed Forum, 2008.

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Collet, Dominique M. Insects of south-central Alaska. Soldotna, Alaska: Kenai Watershed Forum, 2008.

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Collet, Dominique M. Insects of south-central Alaska. Soldotna, Alaska: Kenai Watershed Forum, 2008.

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Collet, Dominique M. Insects of south-central Alaska. Soldotna, Alaska: Kenai Watershed Forum, 2008.

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Collet, Dominique M. Insects of south-central Alaska. Soldotna, Alaska: Kenai Watershed Forum, 2008.

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Andersen, Nils M. Australian water bugs: Their biology and identification (Hemiptera-Heteroptera, Gerromorpha & Nepomorpha). Stenstrup, Denmark: Apollo Books, 2004.

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Winterbourn, Michael J. Guide to the aquatic insects of New Zealand. Auckland: Entomological Society of New Zealand, 1989.

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Winterbourn, Michael J. Guide to the aquatic insects of New Zealand. 4th ed. [Auckland, N.Z.]: Entomological Society of New Zealand, 2006.

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Winterbourn, Michael J. Guide to the aquatic insects of New Zealand. 3rd ed. [Auckland, N.Z.]: Entomological Society of New Zealand, 2000.

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Book chapters on the topic "Aquatic insects – alaska – identification"

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Ortiz-Urquiza, Almudena. "Fungal and oomycete diseases of insects." In Invertebrate Pathology, 308–31. Oxford University Press, 2022. http://dx.doi.org/10.1093/oso/9780198853756.003.0012.

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The identification of the fungus Beauveria bassiana as the causative agent of white muscardine disease in silkworms and the experimental work on the transmission of this infectious agent from infected to healthy insects helped scientists like Agostino Bassi (1773–1856) and Louis Pasteur (1822–1895) to overthrow the spontaneous generation theory and champion the germ theory, which later extrapolated to human diseases. These initial reports, together with earlier observations regarding the occurrence of natural insect epizootics, assisted to devise the idea of microbial pest control and the belief that causative agents of insect diseases could be used for pest control. Today, fungus- (and oomycete-) based pesticides account over 15% of the biopesticide market. Unlike many disease-causing agents (e.g., bacteria, viruses), fungi and oomycetes are effective at colonising insects because of their cuticle-degrading armoury and their ability to evade and suppress the insect innate immune system. However, insect pathogenic fungi and oomycetes differ in their diversity and host range. Insect pathogenic oomycetes show reduced diversity (i.e. a handful of species distributed into eight genera) and a narrower host range (i.e. aquatic insects, mostly mosquito larvae). In contrast, entomopathogenic fungi can be found in six of the nine fungal phyla and infect most insect orders. This chapter represents a broad taxonomic review of the known fungi and oomycetes associated with insects and the diseases they cause.
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"Urban and Community Fisheries Programs: Development, Management, and Evaluation." In Urban and Community Fisheries Programs: Development, Management, and Evaluation, edited by Shann Paul Jones. American Fisheries Society, 2008. http://dx.doi.org/10.47886/9781934874042.ch27.

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<em>Abstract.-</em>I noticed vast variations in North American angler education curricula as I developed my own collegiate program at the University of Alaska Fairbanks (UAF). Therefore I asked, “Am I teaching adults the angling topics they want or think they should learn in the postsecondary environment?” To help answer this question, I distributed a comprehensive questionnaire to the general public gauging their educational wants and requirements. By analyzing the surveys’ results, I created a science-based angler education workshop that included these components. Subsequent to the success of this class, I added more science into the classes I taught for the UAF-Tanana Valley Campus Academic Programs department. To gauge whether or not my course offerings met my students’ expectations, pre- and postcourse surveys were distributed, filled out by class participants, and analyzed from Fall 2005 through Summer 2007. Overall, nearly 93% of survey respondents indicated they would be interested in a fly-fishing class if offered within 30 mi of their home. After workshops, participants showed great improvements in their knowledge of Alaska’s fish species, aquatic insects, aquatic ecology, and fly-casting skills.
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Litke, Frederic. "The Pribilof Islands." In A Republic Of Rivers, 63–68. Oxford University PressNew York, NY, 1990. http://dx.doi.org/10.1093/oso/9780195061024.003.0009.

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Abstract The 1835 Voyage Autour du Monde (“Voyage Around the World”) chronicles the world travels of Captain Lieutenant Frederic Litke (1797-18B2) in Alaska and elsewhere aboard the sixty-two manned Russian corvette Seniavin. The official mission of the Seniavin was, according to imperial order, primarily geographic and scientific-Litke and his naturalist Dr. Mer tens assiduously collected diverse specimens, including 100 amphibians, 300 fish, 150 crustaceans, 700 insects, 300 birds, as well as human skulls, an unspecified number of sea shells, 2,500 plants, 350 rocks and minerals, and numerous ethnographic artifacts. Litke’s most important scientific achievements were the identification of several new species of seal, the collection of some rare species of bat, and the gathering of measurements on the Earth’s magnetic field that were significant for the age.
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