Sio 2 Books > Oceans Seas > Øystein Aas, Anders Klemetsen, Sigurd Einum, Jostein Skurdal's Atlantic Salmon Ecology PDF

Øystein Aas, Anders Klemetsen, Sigurd Einum, Jostein Skurdal's Atlantic Salmon Ecology PDF

By Øystein Aas, Anders Klemetsen, Sigurd Einum, Jostein Skurdal

ISBN-10: 1405197692

ISBN-13: 9781405197694

The Atlantic salmon is without doubt one of the such a lot prized and exploited species around the world, being on the centre of a big activities fishing and more and more because the significant farmed species in lots of international locations worldwide.Atlantic Salmon Ecology is a landmark booklet, either scientifically vital and visually beautiful. Comprehensively masking all significant features of the connection of the Atlantic salmon with its atmosphere, chapters comprise information of migration and dispersal, replica, habitat standards, feeding, development charges, festival, predation, parasitsm, inhabitants dynamics, results of panorama use, hydro energy improvement, weather switch, and exploitation. The booklet closes with a precis and consider attainable destiny study directions.Backed via the Norwegian learn Council and with editors and members widely recognized and revered, Atlantic Salmon Ecology is an important buy for all these operating with this species, together with fisheries scientists and executives, fish biologists, ecologists, physiologists, environmental biologists and aquatic scientists, fish and natural world division body of workers and regulatory our bodies. Libraries in all universities and learn institutions the place those matters are studied and taught must have copies of this crucial publication.Comprehensive and up to date assurance of Atlantic SalmonAtlantic Salmon is without doubt one of the world's such a lot commercially very important speciesBacked by means of the Norwegian examine CouncilExperienced editor and across the world revered individuals

Show description

Read Online or Download Atlantic Salmon Ecology PDF

Similar oceans & seas books

New PDF release: Resources, Planning, and Environmental Management in a

Reviews on present learn by way of geographers and others into source administration and making plans matters within the Caribbean area.

Download PDF by Susan A. Shaw, James F. Muir: Salmon: Economics and Marketing

With the problems keen on the administration of salmon fishing. farming and ranching and the results for construction charges and the availa­ bility of offers. Chapters 6 and seven examine processing. advertising and marketing and distribution and bankruptcy eight discusses the workings of salmon markets and the most elements affecting the call for for salmon.

Download e-book for kindle: Advances in Fisheries Science: 50 years on from Beverton and by Andrew I. L. Payne, John Cotter, Ted Potter

This well timed e-book brings readers brand new at the wide selection of advances made in fisheries technological know-how because the ebook in 1957 of at the Dynamics of Exploited Fish Populations (Beverton and Holt), appeared through many fisheries scientists as some of the most vital books on fisheries but released. conventional fishery matters lined contain ancient declines and adjustments in fishing fleets, fisheries administration and inventory tests, data-poor occasions, simulation and modelling of fished shares, fisheries economics, assessing reproductive strength and dispersal of larvae, fisheries for sharks and rays, and use of marine know-how.

The International Seafood Trade - download pdf or read online

The quick progress in seafood exchange long ago 3 many years has created a really worldwide marketplace for fish. Written via one of many world's prime experts at the topic, this booklet is the 1st to discover the constitution, functionality and developments of this overseas industry. it truly is important for seafood investors, executive officers and researchers, and has develop into the traditional reference at the desks of all members in and observers of the overseas fish and seafood exchange.

Additional info for Atlantic Salmon Ecology

Sample text

Within a given watershed, smolts from upper tributaries generally begin migration earlier than those from lower tributaries. This results in a synchronised sea entry for smolts from within the entire watershed (Stewart et al. 2006). It is believed that smolts use different environmental cues in the rivers that are predictably correlated with favourable ocean conditions to control movements so that they arrive at sea at an appropriate time (Hvidsten et al. 2009). This may account for the differences among populations in which environmental cues are the key triggers of downstream migration.

Fluctuating water levels may have more pronounced effects in small than large rivers. The stimulating effect of increased water discharge is also found in many large rivers where water discharge seems not to be a limiting physical factor of further upstream migration. The role of discharge in these systems is more difficult to explain (Thorstad et al. 1998). However, it is possible that increased discharge is not important to stimulate the salmon to enter the river per se, but rather that increased freshwater supply to near-coastal areas may help the salmon to recognise and find their natal river, increasing the number of fish entering fresh water compared to low flow periods.

2005). Social cues, such as the presence of other migrants in the river, may also be important (Hansen & Jonsson 1985; Hvidsten et al. 1995). The timing of the spring migration has an important role in determining smolt survival in the marine environment (McCormick et al. 1998; Rikardsen & Dempson 2011 [Chapter 5]). Within a given watershed, smolts from upper tributaries generally begin migration earlier than those from lower tributaries. This results in a synchronised sea entry for smolts from within the entire watershed (Stewart et al.

Download PDF sample

Atlantic Salmon Ecology by Øystein Aas, Anders Klemetsen, Sigurd Einum, Jostein Skurdal


by Charles
4.2

Rated 4.40 of 5 – based on 12 votes