WorldCat Identities

Levings, Colin D.

Works: 51 works in 129 publications in 1 language and 1,023 library holdings
Genres: Conference papers and proceedings 
Roles: Author, Editor, Other
Classifications: GC28, 551.4609
Publication Timeline
Most widely held works by Colin D Levings
Fjord oceanography : [proceedings of the NATO Conference on Fjord Oceanography, held in Victoria, British Columbia, Canada, June 4-8, 1979, and sponsored by the NATO Special Program Panel on Marine Sciences] by Howard J Freeland( Book )

11 editions published in 1980 in English and held by 230 WorldCat member libraries worldwide

Fjords are deep, glacia11y carved estuaries that are pecu1iar to certain coast1ines, and have severa1 characteristics that dist inguish them from sha110wer embayments. At higher latitudes they indent the western coast1ines of Scandinavia, North and South America, and New Zea1and. They are a1so a common feature of much of the arctic coast1ine. The papers contained in this vo1ume were presented at a workshop funded by the NATO Advanced Studies Institute in Victoria, British Co1umbia. It may seem curious to the reader that this specia1 c1ass of estuaries shou1d have attracted an international gathering of oceanographers from severa1 different discip1ines. The reas on for this interest stems from both practica1 and scientific considerations. On the one hand, fjords are a feature common to the coast1ines of severa1 countries that depend heavi1y on the oceans for communication, fisheries and other resources. The impact of man's activities on these coasts has created a demand for new know1edge of the physica1, bio10gica1 and chemica1 aspects of fjords. Sometimes man's inf1uence on the ocean is intentiona1 as, for examp1e, in the artificia1 contro1 of ice cover; often it is the more insidious bui1d-up of toxic wastes that is of concern. These prob1ems are particu1ar1y acute where the conf1icting demands of fisheries, industria1 deve10pment and re creation meet in a sing1e fjord; and indeed, this is a common occurence a10ng severa1 of the fjords in Scandinavia and Canada
Proceedings of the National Workshop on Effects of Habitat Alteration on Salmonid Stocks by Canada( Book )

2 editions published in 1989 in English and held by 77 WorldCat member libraries worldwide

National workshop convened to review the latest techniques available to quantify relationships between habitat features and fish production. The workshop focused on salmonids because of their importance on both the Atlantic and Pacific coasts, but effects on other non-salmonid populations were included since data is scarce in some areas. Coverage included methodologies for the quantification of the effects of habitat alteration on yield, empirical examples of the effects of physical and chemical habitat changes on stocks, and the permissable degree of extrapolation in assigning effects of habitat alteration to a stock
Polychaetes recorded near two pulp mills on the coast of northern British Columbia : a preliminary taxonomic and ecological account by J. A Fournier( Book )

2 editions published in 1982 in English and held by 60 WorldCat member libraries worldwide

Two locations on the coast of northern British Columbia were sampled during the years 1972 to 1975 in an attempt to determine the long term effect of pulp mill wood waste on marine benthic communities. Polychaetes were dominant in most samples
The ecological consequences of dredging and dredge spoil disposal in Canadian waters by Colin D Levings( Book )

3 editions published in 1982 in English and held by 46 WorldCat member libraries worldwide

Ecology of salmonids in estuaries around the world : adaptations, habitats, and conservation by Colin D Levings( Book )

3 editions published in 2016 in English and held by 44 WorldCat member libraries worldwide

"For centuries, biologists have marvelled at how anadromous salmonids--fish that pass from rivers into oceans and back again--survive as they migrate between these two very different environments. Yet, relatively little is understood about what happens to salmonid species (including salmon, steelhead, char, and trout) in the estuaries where they make this transition from fresh to salt water. This book explains the critical role estuaries play in salmonid survival."--Page 4 of cover
Seasonal changes of inshore fish populations on Sturgeon and Roberts Bank, Fraser River estuary, British Columbia by D. K Gordon( Book )

10 editions published between 1983 and 1984 in English and held by 41 WorldCat member libraries worldwide

Short term use of a low tide refuge in a sandflat by juvenile chinook, (Oncorhynchus tshawytscha), Fraser River Estuary by Colin D Levings( Book )

9 editions published in 1982 in English and held by 34 WorldCat member libraries worldwide

An overview of habitat classification systems, ecological models, and geographic information systems applied to shallow foreshore marine habitats by Clifford L. K Robinson( Book )

6 editions published between 1995 and 1996 in English and held by 32 WorldCat member libraries worldwide

This report reviews habitat classification systems offering a set of procedures to identify, delimit, and describe the habitats of foreshore fishes, and ecological models describing relationships between habitat attributes such as vegetation type and fish properties such as biomass. Ecological models include fish-habitat models, which can be divided on the basis of mathematical approaches (index, simple qualitative, complex qualitative, regression, and probability functions) or structural approaches (species- and habitat-specific); trophodynamic models, which describe feeding interactions among fish in foreshore habitats (predator-prey, food-chain, and energy/nutrient flow models); and models that assess the role of specific fishes in terms of energy transfer within a single foreshore habitat, or models which provide a holistic view of how various habitats interact. The report concludes with a discussion on the use and utility of geographic information systems as a tool for developing models and systems for assessing fish habitat productive capacity
Effects of settling pond sediments on the Bonsal Creek estuary : a preliminary study by Colin D Levings( Book )

1 edition published in 2002 in English and held by 27 WorldCat member libraries worldwide

A preliminary study of hatchery chinook salmon smolts migrating in the lower Fraser River, determined by radiotagging by N. A Hvidsten( Book )

1 edition published in 1996 in English and held by 27 WorldCat member libraries worldwide

A comparison of the growth rates of the rock sole, Lepidopsetta bilineata Ayres, in Northeast Pacific waters by Colin D Levings( Book )

6 editions published in 1967 in English and held by 23 WorldCat member libraries worldwide

Experimental transplants of brackish and salt marsh species on the Fraser River Estuary by William Martin Pomeroy( Book )

3 editions published in 1981 in English and held by 21 WorldCat member libraries worldwide

Preliminary investigation on aquatic invasive species of marine and estuarine macrobenthic invertebrates on floating structures in five British Columbia harbours by Lin Lu( Book )

4 editions published in 2007 in English and held by 15 WorldCat member libraries worldwide

Samples of invertebrate communities on buoys and floating docks at Vancouver, Esquimalt, Namaimo, Port Alberni and Prince Rupert, British Columbia, were obtained in August and September 2005. The purpose of the preliminary survey was to provide baseline data on the taxonomic composition of the invertebrates, with specific reference to possible aquatic invasive species.--Document
Demersal and benthic communities in Howe Sound basin and their responses to dissolved oxygen deficiency by Colin D Levings( Book )

1 edition published in 1980 in English and held by 14 WorldCat member libraries worldwide

Proceedings of the Howe Sound Environmental Science Workshop by Canada( Book )

4 editions published between 1991 and 1992 in English and held by 14 WorldCat member libraries worldwide

A workshop was held to discuss environmental sciences in the Howe Sound region of British Columbia. Papers were presented concerning weather and climate, volcanism, geology, environmental research, wildlife diversity, fisheries, environmental hazards, hydrodynamics, industrial pollution, marine ecosysystems, environmental monitoring, geochemistry, and sediment transport
Report on groundfish cruise of C.G.S.G.B. Reed to Hecate Strait in February 1968 by Colin D Levings( Book )

2 editions published in 1968 in English and held by 14 WorldCat member libraries worldwide

Studies of intertidal vascular plants, especially sedge (Carex lyngbyei) on the disrupted Squamish River delta, British Columbia by Colin D Levings( Book )

1 edition published in 1976 in English and held by 14 WorldCat member libraries worldwide

A unique collection of baseline biological data : benthic invertebrates from an underwater cable across the Strait of Georgia by Colin D Levings( Book )

1 edition published in 1974 in English and held by 14 WorldCat member libraries worldwide

Sediments and abundance of L̲y̲c̲o̲d̲o̲p̲s̲i̲s̲ p̲a̲c̲i̲f̲i̲c̲a̲ (Pisces, Zoarcidae) near Point Grey, B.C., with catch data for associated demersal fish by Colin D Levings( Book )

1 edition published in 1973 in English and held by 14 WorldCat member libraries worldwide

Marine and estuarine riparian habitats and their role in coastal ecosystems, Pacific Region by Colin D Levings( Book )

7 editions published in 2001 in English and held by 13 WorldCat member libraries worldwide

This paper is an assessment of the fish habitat significance of a particular ecotone of the marine and estuarine shoreline in British Columbia- locations where aquatic habitat at higher tides merges into terrestrial habitat. Scientific data on these supralittoral areas, frequently called the "marine riparian" by managers are scarce in Pacific region. Habitat and ocean managers are dealing with uncertainty when assessing these areas in relation to forestry, urban development, and other industrial activities. There is evidence showing that unvegetated beach substrate in the marine riparian is used as spawning and incubation habitat for sandlance and surf smelt. Marine riparian is also recognized as rearing and migratory habitat for juvenile salmonids. Preliminary studies conducted at two locations in the Strait of Georgia in February and March 2001 showed that a variety of arthropods are potentially available as fish food from intact marine riparian habitats. The functional importance of marine riparian is likely to be related to food production, temperature regulation, wave energy absorption, and provision of structure as well as indirect ecological value. As an interim measure, based on the sparse available literature, we recommend that a site specific approach be taken to buffer zone widths to manage the marine riparian. Gravel, sand, or cobble beaches may be most susceptible to erosion and sediment sloughing from land, depending on backshore conditions. We also advise a careful review of the rationale, efficacy, and performance of the setback distances proposed in Clayoquot Sound and Puget Sound. Several focused research projects are recommended
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Alternative Names
Levings, C. D.

Levings, C. D. (Colin D.)

Levings, Colin D.

English (78)