By Pedro Morais, Francoise Daverat
Since the book of The Migrations of Fish by Prof. Alexander Meek in 1916, a couple of books were released in this topic. in spite of the fact that, each one of these books purely hide one kind of migratory mechanisms. This booklet goals to beat this difficulty via proposing a entire assurance of all lifestyles historical past strategies―potadromy, anadromy, catadromy, amphidromy and oceanodromy in a single book.
The first component of this publication stories the background of fish migration reviews, the most definitions and ideas similar with fish migration and the most developments and demanding situations of fish migration examine. the second one part describes the most techniques and styles linked to all migratory existence heritage recommendations, in addition to the most difficulties linked to their conservation. ultimately, the 3rd part presents examples of the most methodologies used to check fish migration.
This publication was once conceived with the target to supply undergraduate and graduate scholars and researchers with a complete ebook on which they can rely.
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Additional resources for An introduction to fish migration
1998). Homing behavior in fishes is believed to facilitate development of populationspecific adaptations to the habitat occupied (Leggett 1977). For example, alligator gar exhibited high fidelity to overwintering sites (Kluender 2011). This fidelity to high quality overwintering areas may optimize survival. Spawning migrations Seasonal migrations to spawning sites are very common in potamodromous fishes. Mature walleye complete upstream migrations to spring spawning areas (Crowe 1962), while fall spawning species, such as bull trout, also migrate to spawning areas (Swanberg 1997).
Schlosser (1991) described the basic migrations of stream fishes among three types of habitat (feeding, overwintering, and spawning). Northcote (1997) examined riverine populations of 34 species of salmonids in detail, and he summarized potamodromy as a cyclic sequence of three types of migrations (trophic, refuge, and reproductive) between three respective habitats (feeding, overwintering, and spawning) (Fig. 3). Migration is known to be an important tactic for thermoregulation of coldwater species (Petty et al.
After locating suitable overwinter habitat, juvenile salmonids typically select areas of low water velocity and enter concealment cover (Edmundson et al. 1968; Cunjak 1988; Thurow 1997). In contrast, adult fishes often overwinter in deep water habitats. For example, adult westslope cutthroat trout migrated more than 100 km downstream to overwinter in large, deep pools (Bjornn and Mallet 1964). Similarly, as water temperatures declined below 16ºC in autumn, smallmouth bass migrated long distances downstream (69–87 km) from summer habitats to overwintering habitats in deep pools (Langhurst and Schoenike 1990).