Gresswell robert (38 résultats)

Pamphlet. Etat : Very Good. Vol 71, No 1, pp. 39-44, Illus, Extracted from Orig vol, thus begins with title page, trimmed & stapled pamphlet, else VG.

Pamphlet. Etat : Very Good. Vol. 9, No. 1, pp. 159-165, Illus, 4to, Extracted from orig vol, thus begins with title page, trimmed & stapled pamphlet, else VG.

Hardcover. Etat : Near Fine with no dust jacket. 140 pages. American Fisheries Society Symposium 4. ; 7 1/4 x 10 1/4 ".

Paperback. Etat : Good. No Jacket. Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less.

hardcover. Etat : As New. Looks almost new, tight and solid. Very clean with no markings or writing. 100% Money Back Guarantee on all Items. We believe in providing accurate grading on used books and excellent customer service.

Etat : Very Good. Very Good condition.

Soft cover. Etat : Near Fine. Upper corners lightly bumped.

Etat : As New. Unread book in perfect condition.

Hardcover. Etat : Near Fine. First Edition. Book is in NF condition w/trace edge wear noted else a bright & solid copy. No DJ as issued. BC 10/26; 8vo 8" - 9" tall.

Soft cover. Etat : Near Fine. Softcover 2008 edition. Covers and text in near fine condition. Binding firm. Pages unmarked and clean. {170 pages}.

Paperback. Etat : Brand New. reprint edition. 266 pages. 9.00x6.25x0.75 inches. In Stock.

Etat : New.

hardcover. Etat : New.

Paperback. Etat : Very Good. A nice copy. Clean text, solid binding. We are a small business and are slowly adding photos and more information for this listing for our new . Please for photos.

Etat : New.

Etat : Very Good. Very Good condition.

Etat : As New. Unread book in perfect condition.

Paperback. Etat : Very Good. No Jacket. First Edition. From a University library with the usual stamps and labels. Apart from the library provenance which is minimal a clean copy. B00000499.

Hard bound, American Fisheries Society Symposium 4, illustrated with graphs, maps, line drawings & tables, vii + Pp140. Ex-library. Tight and unmarked - a very good or better copy. 545 grams. We welcome all reasonable offers on our books and also offer local curbside pick-up. All books in stock and available for immediate shipment from Winnipeg, Manitoba.…

Etat : New. Many modern ecological problems such as rain forest destruction, decreasing marine harvests, and fire suppression are directly or indirectly anthropogenic. Zooarchaeology and Conservation Biology presents an argument that conservation biology and wildlife.

paperback. Etat : Very Good. Very Good. Dust Jacket may NOT BE INCLUDED.CDs may be missing. SHIPS FROM MULTIPLE LOCATIONS. book.

Etat : New.

Etat : New.

Etat : As New. Unread book in perfect condition.

hardcover. Etat : New. NEW. SHIPS FROM MULTIPLE LOCATIONS. book.

Etat : As New. Unread book in perfect condition.

Taschenbuch. Etat : Neu. Advances in the Ecology of Stream-Dwelling Salmonids | Javier Lobon-Cervia (u. a.) | Taschenbuch | Fish & Fisheries Series | xi | Englisch | 2025 | Springer | EAN 9783031443916 | Verantwortliche Person für die EU: Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg, juergen[dot]hartmann[at]springer[dot]com | Anbieter: preigu. …

Taschenbuch. Etat : Neu. Druck auf Anfrage Neuware - Printed after ordering - Many salmonids inhabit streams during the whole, or a substantial part of their lifetime. Streams, as networks of cold waters running over rifles, pools and tables of gravel, pebble and stony substratum, are fed by rainfall and snowmelt and may be subject to spates and droughts. Hence, these lotic systems are heterogeneous by nature and vary substantially in temperature and discharge along their environmental gradients. In these habitats, salmonids encounter suitable reproductive and feeding habitats where they exhibit a dizzying array of life-history traits and an overwhelming variability in size, growth and density. Essentially predators upon organisms drifting across the water column, they become apex piscivores at large sizes. They may also serve as prey for aquatic macroinvertebrates at the youngest stages, and as they grow, they may become prey for birds and mammals. In addition, many populations play a major role in the recycling of biogeochemical elements critical for the trophic dynamics of their home streams. Empirical assessment of the ecological functioning of stream salmonids has been a tireless endeavor since the pioneer studies by Allen (1951), Chapman (1966), McFadden (1964) and Northcote (1966) further enhanced by the IBP (1964-1974; Gerking 1967) and extended to experimental approaches during the last decades (Northcote Lobon-Cervia2010, Lobon-Cervia & Sanz 2017, Kershner et al. 2019). It has become increasingly apparent that streams are severely threatened by human abuse and misuse, including over-extraction, diversion, damming and pollution, in addition to the more recent threat of global warming. Furthermore, salmonids themselves are threatened by genetic introgressions, diseases, and parasites related to uncontrolled introductions of individuals from aquaculture, and over-exploitation by angling. These threats have triggered important social and political concerns, to the extent of becoming research priorities for major agenciesand institutions. In this context, we attempt to add an overview to this endeavor by updating and summarizing the documented ecology of stream-living salmonids, with reference to the factors and mechanisms underlying the growth, density and life history that interact to determine the size, number, and distribution of individuals encountered in any wild population.…

Buch. Etat : Neu. Druck auf Anfrage Neuware - Printed after ordering - Many salmonids inhabit streams during the whole, or a substantial part of their lifetime. Streams, as networks of cold waters running over rifles, pools and tables of gravel, pebble and stony substratum, are fed by rainfall and snowmelt and may be subject to spates and droughts. Hence, these lotic systems are heterogeneous by nature and vary substantially in temperature and discharge along their environmental gradients. In these habitats, salmonids encounter suitable reproductive and feeding habitats where they exhibit a dizzying array of life-history traits and an overwhelming variability in size, growth and density. Essentially predators upon organisms drifting across the water column, they become apex piscivores at large sizes. They may also serve as prey for aquatic macroinvertebrates at the youngest stages, and as they grow, they may become prey for birds and mammals. In addition, many populations play a major role in the recycling of biogeochemical elements critical for the trophic dynamics of their home streams. Empirical assessment of the ecological functioning of stream salmonids has been a tireless endeavor since the pioneer studies by Allen (1951), Chapman (1966), McFadden (1964) and Northcote (1966) further enhanced by the IBP (1964-1974; Gerking 1967) and extended to experimental approaches during the last decades (Northcote Lobon-Cervia2010, Lobon-Cervia & Sanz 2017, Kershner et al. 2019). It has become increasingly apparent that streams are severely threatened by human abuse and misuse, including over-extraction, diversion, damming and pollution, in addition to the more recent threat of global warming. Furthermore, salmonids themselves are threatened by genetic introgressions, diseases, and parasites related to uncontrolled introductions of individuals from aquaculture, and over-exploitation by angling. These threats have triggered important social and political concerns, to the extent of becoming research priorities for major agenciesand institutions. In this context, we attempt to add an overview to this endeavor by updating and summarizing the documented ecology of stream-living salmonids, with reference to the factors and mechanisms underlying the growth, density and life history that interact to determine the size, number, and distribution of individuals encountered in any wild population.…

Hardcover. Etat : Brand New. 751 pages. 9.25x6.10x1.75 inches. In Stock.