Related Experiment Video
Updated: May 20, 2026

07:25
Basic Methods for the Study of Reproductive Ecology of Fish in Aquaria
Published on: July 20, 2017
Partial migration in fishes: definitions, methodologies and taxonomic distribution
B B Chapman1, C Skov, K Hulthén
1Department of Biology, Lund University, Lund, Sweden. ben.chapman@biol.lu.se
Journal of Fish Biology
|July 19, 2012
Summary
Partial migration is common in fish populations, with both migratory and resident individuals. This review clarifies definitions, classifies types, and overviews methods for studying fish partial migration.
Area of Science:
- Ichthyology
- Ecology
- Evolutionary Biology
Background:
- Partial migration, a mix of migratory and resident individuals within a population, is widespread in animals.
- While recognized in fishes, a comprehensive taxonomic review and standardized terminology were lacking.
- Previous research faced challenges due to varied terminology for fish partial migration.
Purpose of the Study:
- To provide a detailed taxonomic review of partial migration in fishes.
- To clarify definitions and introduce a classification system for fish partial migration.
- To review methodological approaches for studying fish migratory variation.
Main Methods:
- Literature review and synthesis of existing research on fish migration.
- Development of a conceptual framework and classification system for partial migration.
- Discussion of current and potential methodologies for studying fish movement.
Main Results:
- Partial migration is more prevalent in fish than previously understood.
- A clear classification system and standardized definitions for fish partial migration were proposed.
- A comprehensive taxonomic overview of partial migration across fish groups was presented.
Conclusions:
- Partial migration in fishes is a widespread and significant phenomenon.
- Standardized terminology and a robust classification system enhance research.
- Advancements in study techniques promise a bright future for fish migration research.
Related Concept Videos
Migration
Migration is long-range, seasonal movement from one region or habitat to another. This common strategy, carried out by many different organisms around the world, is an adaptive response that typically corresponds to changes in an organism’s environment, like resource availability or climate. Migrations can involve huge groups of thousands of animals as well as single individuals traveling alone and can range from thousands of kilometers to just a few hundred meters.
Formation of Species
Speciation describes the formation of one or more new species from one or sometimes multiple original species. The resulting species are discrete from the parent species, and barriers to reproduction will typically exist. There are two primary mechanisms, speciation with and without geographic isolation—allopatric and sympatric speciation, respectively.
Speciation Rates
Overview
Gastrulation
Gastrulation establishes the three primary tissues of an embryo: the ectoderm, mesoderm, and endoderm. This developmental process relies on a series of intricate cellular movements, which in humans transforms a flat, “bilaminar disc” composed of two cell sheets into a three-tiered structure. In the resulting embryo, the endoderm serves as the bottom layer, and stacked directly above it is the intermediate mesoderm, and then the uppermost ectoderm. Respectively, these tissue strata will form...
Applications of Molecular Taxonomy
Molecular taxonomy has revolutionized the understanding and classification of bacteria, providing precise insights into their diversity, evolutionary relationships, and ecological roles. By utilizing molecular techniques such as DNA sequencing and fingerprinting, researchers have made significant strides in various fields related to bacterial studies.Resolving Taxonomic AmbiguitiesMolecular taxonomy has been instrumental in distinguishing closely related bacterial species initially thought to...
Osmoregulation in Fishes
When cells are placed in a hypotonic (low-salt) fluid, they can swell and burst. Meanwhile, cells in a hypertonic solution—with a higher salt concentration—can shrivel and die. How do fish cells avoid these gruesome fates in hypotonic freshwater or hypertonic seawater environments?

