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Relevant bibliographies by topics / Fish habitat assessment

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Academic literature on the topic 'Fish habitat assessment'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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Journal articles on the topic "Fish habitat assessment"

1

Pratt, Thomas C., and Karen E. Smokorowski. "Fish habitat management implications of the summer habitat use by littoral fishes in a north temperate, mesotrophic lake." Canadian Journal of Fisheries and Aquatic Sciences 60, no. 3 (2003): 286–300. http://dx.doi.org/10.1139/f03-022.

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Compensation measures in response to Fisheries and Oceans Canada (DFO) Policy for the Management of Fish Habitat includes provisions for habitat creation and enhancement. Thus, an assessment of nearshore habitat utilization patterns by fishes is needed to put DFO compensation measures in the context of the "no net loss of the productive capacity of fish habitat" directive. Measures of abundance, richness, and diversity of fishes were compared across nine habitat types in a lake using rapid visual underwater assessment. Multivariate analyses separated habitats into three groups and identified t

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2

Minns, Charles K., and James E. Moore. "Assessment of net change of productive capacity of fish habitats: the role of uncertainty and complexity in decision making." Canadian Journal of Fisheries and Aquatic Sciences 60, no. 1 (2003): 100–116. http://dx.doi.org/10.1139/f02-168.

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Canada's fish habitat management is guided by the principle of "no net loss of the productive capacity of fish habitat" (NNL). Many development proposals are assessed using habitat information alone, rather than fish data. Because fishhabitat linkages are often obscured by uncertainty, uncertainty must be factored into NNL assessments. Using a quantitative framework for assessing NNL and lake habitats as a context, the implications of uncertainty for decision making are examined. The overall behaviour of a net change equation given uncertainty is explored using Monte Carlo simulation. Case st

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3

Rosenfeld, Jordan S., and Todd Hatfield. "Information needs for assessing critical habitat of freshwater fish." Canadian Journal of Fisheries and Aquatic Sciences 63, no. 3 (2006): 683–98. http://dx.doi.org/10.1139/f05-242.

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The core assumptions of critical habitat designation are a positive relationship between habitat and population size and that a minimum habitat area is required to meet a recovery target. Effects of habitat on population limitation scale from (i) effects on performance of individuals (growth, survival, fecundity) within a life history stage, to (ii) limitation of populations by habitats associated with specific life history stages, and (iii) larger-scale habitat structure required for metapopulation persistence. The minimum subset of habitats required to achieve a recovery target will depend o

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Minns, C. K. "Quantifying “no net loss” of productivity of fish habitats." Canadian Journal of Fisheries and Aquatic Sciences 54, no. 10 (1997): 2463–73. http://dx.doi.org/10.1139/f97-149.

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A net change equation is derived for assessing no net loss of productivity of fish habitat (NNL). NNL is the guiding principle of the Canadian policy for the management of fish habitat. The equation provides a middle ground between the extremes of no conservation and no development. Projects affecting fish habitat are accountable for the productive capacity in loss areas and the difference between current and future productivities in modified areas. The equation implies quantitative conservation targets overall and loss-offsetting equivalencies in modified habitat areas. Generalization of the

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5

Jenkins, Amy R., and Ernest R. Keeley. "Bioenergetic assessment of habitat quality for stream-dwelling cutthroat trout (Oncorhynchus clarkii bouvieri) with implications for climate change and nutrient supplementation." Canadian Journal of Fisheries and Aquatic Sciences 67, no. 2 (2010): 371–85. http://dx.doi.org/10.1139/f09-193.

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We used a bioenergetic model to determine if cutthroat trout ( Oncorhynchus clarkii bouvieri ) abundance was related to net energy intake rates (NEI) and the proportion of suitable habitat and to evaluate potential changes in habitat quality due to climate change and stream fertilization efforts. We conducted monthly sampling of cutthroat trout, invertebrate drift, and physical habitat features in pool and riffle habitats. Fish in this study selected foraging positions that enabled them to maximize NEI, and most fish were capable of sustaining high growth rates from July to September. Mean NEI

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6

Searcy, Steven P., David B. Eggleston, and Jonathan A. Hare. "Is growth a reliable indicator of habitat quality and essential fish habitat for a juvenile estuarine fish?" Canadian Journal of Fisheries and Aquatic Sciences 64, no. 4 (2007): 681–91. http://dx.doi.org/10.1139/f07-038.

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A common assumption throughout the marine ecological and fisheries literature is that growth is a valid indicator of habitat quality and can be used as a criterion for designation of essential fish habitat (EFH). In this study, the validity of growth as an index of habitat quality was tested by examining how variability in otolith growth was related to abiotic and biotic environmental conditions and could be biased by previous growth history, density dependence, and selective mortality. The study was conducted with juvenile Atlantic croaker (Micropogonias undulatus) collected in two North Caro

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7

Stål, Johan, and Leif Pihl. "Quantitative assessment of the area of shallow habitat for fish on the Swedish west coast." ICES Journal of Marine Science 64, no. 3 (2007): 446–52. http://dx.doi.org/10.1093/icesjms/fsm018.

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Abstract Stål, J., and Pihl, L. 2007. Quantitative assessment of the area of shallow habitat for fish on the Swedish west coast. – ICES Journal of Marine Science, 64: 446–452. Much effort has been focused recently on juvenile and adult fish habitat use in shallow coastal areas. However, to understand fully the importance of such habitats for fish production it is necessary also to quantify the area of existing habitat types. We inventory and quantify the area of major habitat types in a 1000 km2 area of the Swedish west coast, on a scale appropriate for coastal-zone management. An echosounder

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8

Kovalenko, Katya E., Lucinda B. Johnson, Catherine M. Riseng, et al. "Great Lakes coastal fish habitat classification and assessment." Journal of Great Lakes Research 44, no. 5 (2018): 1100–1109. http://dx.doi.org/10.1016/j.jglr.2018.07.007.

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9

Sullivan, S. Mažeika P., and Mary C. Watzin. "Relating stream physical habitat condition and concordance of biotic productivity across multiple taxa." Canadian Journal of Fisheries and Aquatic Sciences 65, no. 12 (2008): 2667–77. http://dx.doi.org/10.1139/f08-165.

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To explore the potential of assessments of stream geomorphic condition and habitat quality in evaluating lotic productivity, we investigated concordance of stream biotic productivity (aquatic macroinvertebrates, crayfish, fish, and belted kingfishers ( Ceryle alcyon )) and their physical habitat correlates in 18 streams in the Champlain Valley, Vermont, USA. Pearson correlation analysis indicated significant concordance between macroinvertebrate density and fish biomass (r = 0.76), between the density of macroinvertebrates in the orders Ephemeroptera, Plecoptera, and Trichoptera and fish bioma

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Mameri, Daniel, Corina van Kammen, Ton G. G. Groothuis, Ole Seehausen, and Martine E. Maan. "Visual adaptation and microhabitat choice in Lake Victoria cichlid fish." Royal Society Open Science 6, no. 3 (2019): 181876. http://dx.doi.org/10.1098/rsos.181876.

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When different genotypes choose different habitats to better match their phenotypes, genetic differentiation within a population may be promoted. Mating within those habitats may subsequently contribute to reproductive isolation. In cichlid fish, visual adaptation to alternative visual environments is hypothesized to contribute to speciation. Here, we investigated whether variation in visual sensitivity causes different visual habitat preferences, using two closely related cichlid species that occur at different but overlapping water depths in Lake Victoria and that differ in visual perception

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Dissertations / Theses on the topic "Fish habitat assessment"

1

Laurich, Ryan Michael. "AN ECOLOGICAL ASSESSMENT OF OHIO FISH COMMUNITIES AND HABITAT STRUCTURE: EXAMINING THE RELATIONSHIP BETWEEN COMMUNITY COMPOSITION AND HABITAT QUALITY FOR AQUATIC ECOSYSTEMS." Miami University / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=miami1073340050.

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2

Farò, David. "Integrative modeling tools for the assessment of fish habitat and population dynamics in rivers." Doctoral thesis, Università degli studi di Trento, 2020. http://hdl.handle.net/11572/268275.

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In recent times, habitat models at the meso-scale are becoming increasingly accepted techniques to quantify the impact of hydro-morphological pressures on rivers, to help guide water resource planning through the design of environmental flows, or renaturalization of rivers through restoration. Despite their potential, broader applicability of meso-scale habitat models is limited by the difficulty to conduct field-based mesohabitat mapping in large streams or at high flows, at which wadeability decreases. Furthermore, construction of reliable habitat-streamflow rating curves can be a highly tim

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Far&#242, David. "Integrative modeling tools for the assessment of fish habitat and population dynamics in rivers." Doctoral thesis, Università degli studi di Trento, 2006. http://hdl.handle.net/11572/268275.

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In recent times, habitat models at the meso-scale are becoming increasingly accepted techniques to quantify the impact of hydro-morphological pressures on rivers, to help guide water resource planning through the design of environmental flows, or renaturalization of rivers through restoration. Despite their potential, broader applicability of meso-scale habitat models is limited by the difficulty to conduct field-based mesohabitat mapping in large streams or at high flows, at which wadeability decreases. Furthermore, construction of reliable habitat-streamflow rating curves can be a highly tim

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Boys, Craig Ashley, and n/a. "Fish-Habitat Associations in a Large Dryland River of the Murray-Darling Basin, Australia." University of Canberra. Resource, Environmental & Heritage Sciences, 2007. http://erl.canberra.edu.au./public/adt-AUC20070807.112943.

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Many aspects concerning the association of riverine fish with in-channel habitat remain poorly understood, greatly hindering the ability of researchers and managers to address declines in fish assemblages. Recent insights gained from landscape ecology suggest that small, uni-scalar approaches are unlikely to effectively determine those factors that influence riverine structure and function and mediate fish-habitat associations. There appears to be merit in using multiple-scale designs built upon a geomorphologically-derived hierarchy to bridge small, intermediate and large spatial scales in la

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Kercher, Diana Marie. "Genetic Assessment of Rare Blackbanded Sunfish (Enneacanthus Chaetodon) Populations in Virginia." VCU Scholars Compass, 2006. http://scholarscompass.vcu.edu/etd/1359.

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Enneacanthus chaetodon, the blackbanded sunfish, has become increasingly rare throughout its distribution in the Eastern United States. In Virginia, E. chaetodon maintains an endangered status and individuals persist in six populations. Mitochondrial DNA (mtDNA) and microsatellite data were assessed to determine the genetic characters and gene diversity of the Virginia populations. The results of these analyses were then compared to five additional populations; four from New Jersey and one from North Carolina that were known to have relatively good fitness and were not impacted severely by hab

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Álvarez, Berastegui Diego. "Integration of marine habitat information into the study of fish ecology: New approaches for ecosystem based fisheries management." Doctoral thesis, Universitat de les Illes Balears, 2016. http://hdl.handle.net/10803/650392.

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The overexploitation of marine living resources challenges the scientific community for developing new analytical approaches providing effective tools for marine management, ensuring long-term conservation of the harvested and threatened species. Currently, the scientific efforts are mainly focused on the development of techniques and concepts to improve the assessment and management of these populations from a holistic point of view within the framework of the Ecosystem Based Management (EBM). While the principles and objectives of EBM have been accepted by the scientific community and

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Neary, James P. "Use of physical habitat structure to assess stream suitability for brown trout : a case study of three upland Scottish streams." Thesis, University of Stirling, 2006. http://hdl.handle.net/1893/209.

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In 2000 the European Union introduced the Water Framework Directive, new legislation that regulates the use of surface waters within the European Community. The goal of this legislation is to protect, enhance and restore all surface waters within the Community to Good Surface Water Status. Good-Status is described as having low levels of anthropogenic distortion in its hydro-morphological and physiochemical components as well as possessing biota that would normally be associated with the type-specific aquatic ecosystem. The assessment of ecosystem status is to be defined by comparisons with in

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Polato, Francesca. "Assessment of hydropower mitigation measures for fish habitat rehabilitation with a coupled eco-hydraulic model : A case study on the Skålan-Äldern stretch." Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-302397.

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In the past century, hydropower development in Sweden has been facilitated by the lack of appropriate environmental legislation. This exploitation has resulted in the current poor ecological status of most Swedish water bodies affected by hydropower, and in the need for new policies that reflect the 2000 European Water Framework Directive. Thus, the Swedish Agency for Marine and Water management (SwAM), the Swedish Energy Agency (SEA) and Svenska Kraftnät have elaborated a new national plan for the revision of almost all hydropower licenses in the next 20 years, and Vattenkraftens Miljöfond

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Eddings, James B. "The Utility of Environmental DNA and Species Distribution Models in Assessing the Habitat Requirements of Twelve Fish Species in Alaskan North Slope Rivers." DigitalCommons@USU, 2020. https://digitalcommons.usu.edu/etd/7708.

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Subsistence fishing is a vital component of Alaska’s North Slope borough economy and culture that is being threatened by human disturbance. These threats mean the fish must be protected, but the size of the region makes conservation planning difficult. Fortunately, advances in species distribution models (SDMs), environmental DNA (eDNA), and remote sensing technologies provide potential to better understand species’ needs and guide management. The objectives of my study were to: (1) map the current habitat suitability for twelve fish species, occurring in Alaska’s North Slope,(2) determine if

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Duncan, Murray. "The genetic stock structure and distribution of Chrysoblephus Puniceus, a commercially important transboundary linefish species, endemic to the South West Indian Ocean." Thesis, Rhodes University, 2014. http://hdl.handle.net/10962/d1011868.

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Chrysoblephus puniceus is an over-exploited linefish species, endemic to the coastlines off southern Mozambique and eastern South Africa. Over-exploitation and habitat loss are two of the biggest threats to the sustainability of fisheries globally. Assessing the genetic stock structure (a prerequisite for effective management) and predicting climate related range changes will provide a better understanding of these threats to C. puniceus which can be used to improve the sustainability of the fishery. Two hundred and eighty four genetic samples were collected from eight sampling sites between P

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Books on the topic "Fish habitat assessment"

1

Bethers, Mike. Juneau fish habitat assessment. Alaska Dept. of Fish and Game, Division of Sport Fish, 1995.

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2

Kuwada, Mark N. Stream Habitat Assessment Project. Habitat and Restoration Division, Alaska Dept. of Fish and Game, 1993.

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3

Williams, Gary L. Coastal/estuarine fish habitat description & assessment manual. Unsolicited Proposals Program, Supply and Services Canada, 1989.

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4

Montana. Department of Fish, Wildlife, and Parks. Kleinschmidt Creek fish habitat restoration project: Environmental assessment. The Dept., 1999.

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5

Fish Passage Improvement Program (Calif.). Calaveras River fish migration barriers assessment report. State of California, the Resources Agency, Dept. of Water Resources, Division of Planning and Local Assistance, Resource Restoration and Project Support Branch, 2007.

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6

Spoon, Ronald L. Elkhorn Mountains westslope cutthroat trout restoration program, mountain range programmatic assessment: Draft environmental assessment. Montana Fish, Wildlife and Parks, Region 3, 1999.

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7

Hawkins, Amy. Tenmile Creek watershed salmon habitat assessment. Huxley College of Environmental Studies, 2000.

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8

Livingston, Mary E. Fish and wildlife habitat assessment in rivers: An annotated bibliography. Published for the National Water and Soil Conservation Authority by the Water and Soil Directorate, Ministry of Works and Development, 1987.

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9

Projects, United States Federal Energy Regulatory Commission Office of Energy. Biological assessment and essential fish habitat assessment: Oregon LNG terminal and pipeline project. Federal Energy Regulatory Commission, Office of Energy Projects, 2010.

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10

Chapman, D. W. Habitats of weak salmon stocks of the Snake River Basin and feasible recovery measures: Recovery issues for threatened and endangered Snake River salmon. U.S. Dept. of Energy, Bonneville Power Administration, Division of Fish and Wildlife, 1993.

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Book chapters on the topic "Fish habitat assessment"

1

Maccubbin, Alexander E., and Noreen Ersing. "Tumors in fish from the Detroit River." In Environmental Assessment and Habitat Evaluation of the Upper Great Lakes Connecting Channels. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3144-5_18.

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Leslie, J. K., and C. A. Timmins. "Distribution and abundance of young fish in the St. Clair River and associated waters, Ontario." In Environmental Assessment and Habitat Evaluation of the Upper Great Lakes Connecting Channels. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3144-5_6.

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Leslie, J. K., and C. A. Timmins. "Distribution and abundance of young fish in Chenal Ecarte and Chematogen Channel in the St. Clair River delta, Ontario." In Environmental Assessment and Habitat Evaluation of the Upper Great Lakes Connecting Channels. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3144-5_7.

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Livingston, Patricia A. "Incorporating fish food habits data into fish population assessment models." In Contemporary studies on fish feeding: the proceedings of GUTSHOP ’84. Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-017-1158-6_20.

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Stephansen, Cathrine, Anders Bjørgesæter, Odd Willy Brude, et al. "Introduction to the Concepts and Use of ERA Acute." In Assessing Environmental Risk of Oil Spills with ERA Acute. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-70176-5_1.

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AbstractIntroducing the main concepts of ERA Acute, this chapter describes the overall framework and purpose of the methodology. ERA Acute is a recently developed oil spill risk assessment (OSRA) methodology for quantification of oil spill impacts and risk (Environmental Risk Assessment, ERA). It covers four environmental compartments; sea surface (seabirds, turtles, marine mammals), water column (fish eggs/larvae), shoreline and seafloor (species and habitats) using continuous impact functions and introduces the Resource Damage Factor (RDF). The methodology depends on external oil spill modelling and input data related to the presence and vulnerability of Valued Ecosystem Components (VECs). ERA Acute is developed to provide an improvement over the currently used “MIRA” method on the Norwegian Continental Shelf (NCS) and is better suited for risk management, decision-making and analyses from screening studies to full environmental risk assessments.

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"Fish Habitat: Essential Fish Habitat and Rehabilitation." In Fish Habitat: Essential Fish Habitat and Rehabilitation, edited by Charles K. Minns, Susan E. Doka, Carolyn N. Bakelaar, Peter C. E. Brunette, and William M. Schertzer. American Fisheries Society, 1999. http://dx.doi.org/10.47886/9781888569124.ch27.

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<em>Abstract.—</em> The quality and quantity of habitats determine ecosystem productivity. Hence, they determine the potential fish productivity that sustains the fish harvests extractable from freshwaters and seas. Efforts to conserve and protect fish habitats are frustrated by key unanswered questions: which habitat types and how much must be protected to ensure natural self-sustaining fish stocks? Minns and Bakelaar presented a prototype method for assessing suitable habitat supply for fish stocks in Lake Erie, an analysis that can be used to address conservation issues. Here, the method is refined and extended, taking the assessment of habitat supply for pike <em>Esox lucius </em> in the Long Point region of Lake Erie as a case study. As with the previous study, much emphasis is placed on “learning by doing.” Because available inventories of habitat features are coarse and incomplete, improved guidelines for estimating habitat supply are expected from these prototype studies. The habitat supply method previously presented by Minns and Bakelaar is elaborated in three ways here: (1) the basic physical habitat assessment is derived from a remote-sensing inventory database; (2) methods of quantifying the thermal regime and integrating it with other habitat elements are examined; (3) habitat supply estimates are used in a pike population model, and pike biomass and production are simulated for the Long Point region of Lake Erie and then compared with available records. The roles of error and uncertainty are examined for all elements in the estimation and application of suitable habitat supply values. There is potential for supply measurement and analysis to guide fish habitat management.

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"Fish Habitat: Essential Fish Habitat and Rehabilitation." In Fish Habitat: Essential Fish Habitat and Rehabilitation, edited by Charles K. Minns, Susan E. Doka, Carolyn N. Bakelaar, Peter C. E. Brunette, and William M. Schertzer. American Fisheries Society, 1999. http://dx.doi.org/10.47886/9781888569124.ch27.

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<em>Abstract.—</em> The quality and quantity of habitats determine ecosystem productivity. Hence, they determine the potential fish productivity that sustains the fish harvests extractable from freshwaters and seas. Efforts to conserve and protect fish habitats are frustrated by key unanswered questions: which habitat types and how much must be protected to ensure natural self-sustaining fish stocks? Minns and Bakelaar presented a prototype method for assessing suitable habitat supply for fish stocks in Lake Erie, an analysis that can be used to address conservation issues. Here, the method is refined and extended, taking the assessment of habitat supply for pike <em>Esox lucius </em> in the Long Point region of Lake Erie as a case study. As with the previous study, much emphasis is placed on “learning by doing.” Because available inventories of habitat features are coarse and incomplete, improved guidelines for estimating habitat supply are expected from these prototype studies. The habitat supply method previously presented by Minns and Bakelaar is elaborated in three ways here: (1) the basic physical habitat assessment is derived from a remote-sensing inventory database; (2) methods of quantifying the thermal regime and integrating it with other habitat elements are examined; (3) habitat supply estimates are used in a pike population model, and pike biomass and production are simulated for the Long Point region of Lake Erie and then compared with available records. The roles of error and uncertainty are examined for all elements in the estimation and application of suitable habitat supply values. There is potential for supply measurement and analysis to guide fish habitat management.

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"Fish Habitat: Essential Fish Habitat and Rehabilitation." In Fish Habitat: Essential Fish Habitat and Rehabilitation, edited by J. Stanley Cobb, Michael Clancy, and Richard A. Wahle. American Fisheries Society, 1999. http://dx.doi.org/10.47886/9781888569124.ch21.

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<em>Abstract.</em> —The American lobster <em>Homarus americanus </em> is usually associated with rocky substrate that provides or can be modified into shelter and that may be an essential habitat to early benthic-phase juveniles. The dependence on shelter-providing habitat not only makes possible the definition of essential habitat for lobsters but also permits the assessment of abundance based on the areal extent of habitat. Here, we describe such a habitat-based assessment, performed in response to an oil spill on the coast of Rhode Island, USA. Results from a side-scan sonar survey performed after the spill indicated that the amount of lobster habitat affected by the oil was approximately 9.8 km2 along nearly 15 km of coastline. Postspill lobster density ranged from 0.24 lobsters m22 in the impact region to 1.63 lobsters m22 in the control region. Qualitative (map contours of lobster density) and quantitative (statistical tests) approaches suggested a significant effect of the spill had been detected by our sampling. An estimate of the total number of lobsters killed was required to scale restoration efforts. We calculated the total number of lobsters in the area by overlaying contours of lobster density on a habitat map generated by side-scan sonar, then multiplying the density of lobsters in each contour interval by the area of appropriate lobster habitat (cobble and boulder) in the contour interval. To calculate loss, we subtracted postspill abundance from prespill abundance. Prespill density was estimated to be 1.76 m22, which is an adjusted average of airlift samples taken at six Rhode Island sites four months prior to the spill. Calculations of loss based on habitat-specific density estimates were adjusted to reflect undersampling. The loss was estimated to be to be 9.0 × 106 lobsters. Variability associated with this loss estimate is large; 95% confidence intervals estimated that between 6.7 × 106 and 15.6 × 106 lobsters were lost. The calculated loss was very sensitive to changes in prespill density estimates; a change of 0.1 lobsters m22 resulted in a change of 0.75–0.9 × 106 lobsters lost. Habitatbased assessment of lobster population size is possible but requires detailed habitat maps and accurate density estimates. Natural variability and sampling limitations give such assessment a wide range of possible values. Nevertheless, the airlift sampling technique, together with sidescan sonar maps of habitat, could provide a powerful tool for estimating the abundance of inshore lobsters.

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"Fish Habitat: Essential Fish Habitat and Rehabilitation." In Fish Habitat: Essential Fish Habitat and Rehabilitation, edited by J. Stanley Cobb, Michael Clancy, and Richard A. Wahle. American Fisheries Society, 1999. http://dx.doi.org/10.47886/9781888569124.ch21.

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<em>Abstract.</em> —The American lobster <em>Homarus americanus </em> is usually associated with rocky substrate that provides or can be modified into shelter and that may be an essential habitat to early benthic-phase juveniles. The dependence on shelter-providing habitat not only makes possible the definition of essential habitat for lobsters but also permits the assessment of abundance based on the areal extent of habitat. Here, we describe such a habitat-based assessment, performed in response to an oil spill on the coast of Rhode Island, USA. Results from a side-scan sonar survey performed after the spill indicated that the amount of lobster habitat affected by the oil was approximately 9.8 km2 along nearly 15 km of coastline. Postspill lobster density ranged from 0.24 lobsters m22 in the impact region to 1.63 lobsters m22 in the control region. Qualitative (map contours of lobster density) and quantitative (statistical tests) approaches suggested a significant effect of the spill had been detected by our sampling. An estimate of the total number of lobsters killed was required to scale restoration efforts. We calculated the total number of lobsters in the area by overlaying contours of lobster density on a habitat map generated by side-scan sonar, then multiplying the density of lobsters in each contour interval by the area of appropriate lobster habitat (cobble and boulder) in the contour interval. To calculate loss, we subtracted postspill abundance from prespill abundance. Prespill density was estimated to be 1.76 m22, which is an adjusted average of airlift samples taken at six Rhode Island sites four months prior to the spill. Calculations of loss based on habitat-specific density estimates were adjusted to reflect undersampling. The loss was estimated to be to be 9.0 × 106 lobsters. Variability associated with this loss estimate is large; 95% confidence intervals estimated that between 6.7 × 106 and 15.6 × 106 lobsters were lost. The calculated loss was very sensitive to changes in prespill density estimates; a change of 0.1 lobsters m22 resulted in a change of 0.75–0.9 × 106 lobsters lost. Habitatbased assessment of lobster population size is possible but requires detailed habitat maps and accurate density estimates. Natural variability and sampling limitations give such assessment a wide range of possible values. Nevertheless, the airlift sampling technique, together with sidescan sonar maps of habitat, could provide a powerful tool for estimating the abundance of inshore lobsters.

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"Mangroves as Fish Habitat." In Mangroves as Fish Habitat, edited by Karen J. Murchie, Sascha Clark Danylchuk, Andy J. Danylchuk, and Steven J. Cooke. American Fisheries Society, 2015. http://dx.doi.org/10.47886/9781934874424.ch6.

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<em>Abstract</em>.—Three adjacent tidal creek systems (Page, Kemps, and Broad creeks) on Cape Eleuthera, The Bahamas were studied to quantify the variation in fish community structure and habitat characteristics over small (<5 km) spatial scales. Snorkeling transects were used to census the fish community on a summer new moon during slack high tide and involved the simultaneous assessment of each creek and each zone within the creek (i.e., mouth, middle, and upper) replicated over three consecutive days. The simultaneous assessment (involving large teams) was done to enable direct comparison without spatial sampling being confounded by time. Habitat assessments included measurements of water quality parameters, sediment sampling, and vegetation surveys. Despite their close proximity, creeks differed in both fish community structure and habitat characteristics. Broad Creek had the greatest fish species richness (<em>n </em>= 15), followed by Kemps Creek (<em>n </em>= 14) and Page Creek (<em>n </em>= 10). Mangrove habitats had significantly greater fish species diversity in Broad Creek while sea grass habitats resulted in higher species richness in Page Creek, relative to other habitat types. Mangrove and algal plain habitats had the highest fish species diversity in Kemps Creek. Within creeks, fish abundance was dependent on zonation, with the largest number of fish being found in creek mouths compared to upper sections. Water quality parameters (i.e., temperature, dissolved oxygen, and salinity) differed among the creeks, presumably reflecting creek morphology. Out of the 10 different species of vegetation observed, 60% were found in all tidal creeks. Coarse sand was the predominant particle size for all creeks, with variation in the second most abundant particle size between Page Creek and the others. This study reveals the great heterogeneity of tidal creek fish community and habitat characteristics and illustrates that conservation and management strategies along with monitoring programs must recognize the variation that can occur among and within coastal creeks over relatively small spatial scales.

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Conference papers on the topic "Fish habitat assessment"

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Lees, Albert, Andrea Jalbert, and M. Traverso. "Assessment of Success Biostabilization Techniques on Selected Watercrossings in Alberta." In 2006 International Pipeline Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/ipc2006-10082.

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Since the early 1980’s TransCanada PipeLines Ltd. (TransCanada) has employed a number of stream bank stabilization measures in an effort to minimize the loss of fish habitat and to reduce the risk of long term erosion and sedimentation. Traditional stream crossing stabilization involved the re-contouring of streambanks to a stable slope (generally 2:1) and then lining the banks with rock armour and seeding. TransCanada began using alternate techniques, primarily log-walls in 1981. Since 1981 TransCanada has evolved the use stream bank stabilization techniques to include bio-stabilization techn

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Kim, J., D. K. Koh, and S. Cho. "An assessment of habitat conditions for fish species in the Guem River, Korea." In Sustainability Today. WIT Press, 2011. http://dx.doi.org/10.2495/st110281.

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Rempel, Laura L., and Michael Porter. "A Risk Assessment Tool for Evaluating Geohazards and Fisheries Sensitivity at Pipeline Water Crossings." In 2008 7th International Pipeline Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/ipc2008-64560.

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The Fisheries Act legislates Fisheries & Oceans Canada (DFO) to regulate all development activities affecting fish-bearing waters to ensure no net loss in habitat productivity. To meet the increasing regulatory demands of oil and gas development, DFO is developing a Fisheries Risk Assessment Tool (FRAT). The current focus is along the Mackenzie River Valley, Northwest Territories. The FRAT is applied to proposed pipeline stream crossings and evaluates the risk to fisheries resources from geohazards causing sedimentation impacts. Ultimately, the FRAT may be applied across Canada to streamli

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Jasper, Steve, Jason D. Harris, and Raymond Doering. "The SWAT Approach for Pipeline Watercourse Crossings." In 2010 8th International Pipeline Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ipc2010-31358.

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This paper describes a multi-year program to assess pipeline crossings of sensitive watercourses along a major pipeline project. During the Front End Engineering and Design (FEED) phase a sensitive watercourse assessment team (SWAT) was established to provide a biophysical and construction assessment of selected watercourses to be crossed by a proposed pipeline project in western Canada. The SWAT comprised a fisheries biologist, a pipeline watercourse construction specialist and other technical support personnel. The field work included assessing biophysical data, fish habitat values, access t

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Ishimatsu, Atsushi, Masahiro Hayashi, Takashi Kikkawa, and Jun Kita. "Effects of CO2 Ocean Sequestration on Marine Fish." In 25th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/omae2006-92198.

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Ocean sequestration of CO2 has been proposed as a possible measure to retard the increasing rate of the atmospheric CO2 concentration. Since some negative impacts on marine animals and ecosystems are likely to ensue, we must carefully investigate biological effects of ocean CO2 sequestration before embarking on this mitigation practice. Considering the expected depths for CO2 ocean sequestration (&gt; 1,000 m), it is desirable to use deep-sea animals for the experimental assessment of CO2 ocean sequestration. In addition, experimental protocols preferably mimic environmental conditions at

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O’Rourke, Dan J. "Corridor Pipeline: Hartley Creek Crossing." In 2002 4th International Pipeline Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/ipc2002-27126.

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Construction of the 493 km Corridor Pipeline System commenced in summer 2000, and is scheduled for completion in 2002. The system connects the two major components of the Athabasca Oil Sands Project — the Muskeg River Mine, north of Ft. McMurray and the Upgrader adjacent to Shell Canada Limited’s Scotford Refinery, near Fort Saskatchewan. The pipeline will also link the Upgrader with terminals in the Edmonton Area. The system includes dual pipelines (610 mm and 323.9 mm O.D.) as well as associated pump stations and valve sites. Corridor Pipeline Limited is a wholly-owned subsidiary of BC Gas I

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Maksimova, Ekaterina, Ekaterina Maksimova, Vladimir Zhigulsky, Vladimir Zhigulsky, Vladimir Shuisky, and Vladimir Shuisky. "ASSESSMENT OF THE SPATIOTEMPORAL DYNAMICS OF THE MACROPHYTE THICKET ECOSYSTEMS IN THE NEVA BAY AND THE ADJACENT WATERS OF THE EASTERN GULF OF FINLAND." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.21610/conferencearticle_58b431672d7ed.

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The macrophyte thicket ecosystems of higher aquatic vegetation in the Neva Bay (NB) and Eastern Gulf of Finland (EGoF) perform many important roles, including acting as the habitats, nesting sites and migration sites for aquatic and semi-aquatic birds, creating the specific conditions necessary for the spawning and growth of many species of fish, and taking part in the self-purification of the aquatic ecosystems. Many anthropogenic disturbances, hydraulic works in particular, have a significant negative impact on these macrophyte thicket ecosystems. In recent years, the active growth of a new

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Maksimova, Ekaterina, Ekaterina Maksimova, Vladimir Zhigulsky, Vladimir Zhigulsky, Vladimir Shuisky, and Vladimir Shuisky. "ASSESSMENT OF THE SPATIOTEMPORAL DYNAMICS OF THE MACROPHYTE THICKET ECOSYSTEMS IN THE NEVA BAY AND THE ADJACENT WATERS OF THE EASTERN GULF OF FINLAND." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.31519/conferencearticle_5b1b93849b8ce5.05692343.

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The macrophyte thicket ecosystems of higher aquatic vegetation in the Neva Bay (NB) and Eastern Gulf of Finland (EGoF) perform many important roles, including acting as the habitats, nesting sites and migration sites for aquatic and semi-aquatic birds, creating the specific conditions necessary for the spawning and growth of many species of fish, and taking part in the self-purification of the aquatic ecosystems. Many anthropogenic disturbances, hydraulic works in particular, have a significant negative impact on these macrophyte thicket ecosystems. In recent years, the active growth of a new

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Reports on the topic "Fish habitat assessment"

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Muckenhirn, A., and B. Hanshew. Arroyo Mocho Habitat Suitability Assessment for Sensitive Reptiles, Amphibians, and Fish. Office of Scientific and Technical Information (OSTI), 2021. http://dx.doi.org/10.2172/1820024.

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Abdel-Fattah, S., S. E. Doka, and C. K. Minns. Risk assessment of coastal alteration fffects on fish habitat suitability under current and future climates. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2017. http://dx.doi.org/10.4095/305401.

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Assessment of Habitat, Fish Communities, and Streamflow Requirements for Habitat Protection, Ipswich River, Massachusetts, 1998-99. US Geological Survey, 2001. http://dx.doi.org/10.3133/wri20014161.

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Assessment of Fish Habitat, Water Quality, and Selected Contaminants in Streambed Sediments in Noyes Slough, Fairbanks, Alaska, 2001-2002. US Geological Survey, 2004. http://dx.doi.org/10.3133/wri034328.

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Baseline assessment of fish communities, benthic macroinvertebrate communities, and stream habitat and land use, Big Thicket National Preserve, Texas, 1999-2001. US Geological Survey, 2003. http://dx.doi.org/10.3133/wri034270.

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