By Pedro Morais, Francoise Daverat
Since the booklet of The Migrations of Fish by Prof. Alexander Meek in 1916, a couple of books were released in this topic. even if, almost all these books basically conceal one form of migratory mechanisms. This e-book goals to beat this challenge through providing a finished assurance of all lifestyles heritage strategies―potadromy, anadromy, catadromy, amphidromy and oceanodromy in a single book.
The first element of this e-book stories the heritage of fish migration experiences, the most definitions and ideas similar with fish migration and the most developments and demanding situations of fish migration study. the second one part describes the most procedures and styles linked to all migratory lifestyles historical past recommendations, in addition to the most difficulties linked to their conservation. eventually, the 3rd part offers examples of the most methodologies used to review fish migration.
This publication was once conceived with the target to supply undergraduate and graduate scholars and researchers with a finished booklet on which they can rely.
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Additional resources for An introduction to fish migration
1988) compared the distribution of diadromous fishes to global patterns in aquatic productivity and concluded that food availability is an important factor determining both where migratory fishes occur and their direction of movement. Migration and movements are very widespread strategies in potamodromous fishes (Northcote 1978) and ultimately result in fish switching habitats. Salmonids, for example, change habitats many times during their growth and development, and each change within and across life stages involves migration (Thorpe 1988).
1994) reported sub-adult bull trout migrating upstream in Rapid River along with mature bull trout from April–July. In August, the sub-adult bull trout stopped migrating before reaching spawning 44 An Introduction to Fish Migration sites and subsequently reversed their migration back downstream to other habitats (Schill et al. 1994). The authors reported that the likelihood of this behavior increased in bull trout smaller than 45 cm in length, suggesting the downstream movements may be associated with the seeking of summer thermal refugia or feeding habitats.
As we celebrate the 100th anniversary of Alexander Meek’s seminal book ‘The migration of fish’ (Meek 1916), the differences between the techniques and proxies currently used to study fish migration and those used in the early 1900’s are tremendous. Certainly whatever the predictions that we might make on the future of fish migration research, all of them will be less ambitious than those the future holds for us. Yet, we are sure that technical advances will pave the way for reaching previously unattainable data, shedding light to novel insights and, above all, exploring new questions.