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An introduction to fish migration by Pedro Morais, Francoise Daverat

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. besides the fact that, almost all these books in simple terms disguise one form of migratory mechanisms. This ebook goals to beat this problem through featuring a finished assurance of all lifestyles heritage strategies―potadromy, anadromy, catadromy, amphidromy and oceanodromy in a single book.

The first element of this booklet studies the background of fish migration experiences, the most definitions and ideas comparable 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 thoughts, in addition to the most difficulties linked to their conservation. eventually, the 3rd part offers examples of the most methodologies used to check fish migration.

This e-book used to be conceived with the target to supply undergraduate and graduate scholars and researchers with a accomplished e-book on which they can rely.

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2012). Gerking (1959) defined homing as “the return to a place formerly occupied instead of going to other equally probable places”. The effects of homing or fidelity to the same habitats are addressed below. Longer lived species, such as the lake sturgeon (maximum age of 154 years) (Scott and Crossman 1973), have the potential to complete hundreds of annual feeding and refuge migrations. To add to this complexity of movements, adults of all species also complete reproductive migrations to appropriate spawning habitats (Schlosser 1991).

Gar and sturgeon) with much large home ranges and extensive migrations. Diel movements represent a specialized type of movement within home ranges and may be associated with feeding or refuge movements. The extent and timing of diel vertical movements of adult alewives in Lake Michigan, for example, coincided with diel movements of mysis zooplankton (Mysis relicta). Both mysis and adult alewife concentrated at the bottom during the day and migrated upwards to the base of the thermocline at night, with their stomach contents indicating the alewife vertical movements were mechanistically linked to feeding behavior (Janssen and Brandt 1980).

2011; Tolotti et al. 2015). Despite all economic pressures (fisheries, water development plans) that world migratory fishes are subject to, we are still confident that the future will be beneficial for migratory fish species if fundamental and applied research continues in developed countries, if it expands to developing countries in a consistent manner, but only if encompassed by public awareness programs and media pressure. References Arthington AH, Lorenzen K, Pusey BJ, Abell R, Halls AS, Winemiller KO, Arrington DA and Baran E (2003) River fisheries: ecological basis management and conservation.

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