Methodological approach to investigating spatial cognition in Arctic charr (Salvelinus alpinus).

Assessing cognitive traits poses consistent methodological challenges. We describe a method for testing Arctic charr by incorporating a T-maze into their housing, which reduced stress and improved the engagement of the tested fish in the task. We outline the phases of testing to evaluate learning efficiency and determine which orientation strategies, such as motor response versus beaconing, are prioritized by the animals.

How to measure exploration: A combined estimation method.

The personality axis 'exploration-avoidance' is often measured using an open field test (OFT) from which measurements such as mobility level (e.g. distance travelled) and space use (e.

Variation in personality shaped by evolutionary history, genotype and developmental plasticity in response to feeding modalities in the Arctic charr.

Animal personality has been shown to be influenced by both genetic and environmental factors and shaped by natural selection. Currently, little is known about mechanisms influencing the development of personality traits. This study examines the extent to which personality development is genetically influenced and/or environmentally responsive (plastic).

Enhancement of Soybean Meal Alters Gut Microbiome and Influences Behavior of Farmed Atlantic Salmon ().

Atlantic salmon () is one of the worlds most domesticated fish. As production volumes increase, access to high quality and sustainable protein sources for formulated feeds of this carnivorous fish is required. Soybean meal (SBM) and soy-derived proteins are the dominant protein sources in commercial aquafeeds due to their low-cost, availability and favorable amino acid profile.

Personality in juvenile Atlantic cod ecotypes and implications for fisheries management.

Animals show among-individual variation in behaviors, including migration behaviors, which are often repeatable across time periods and contexts, commonly termed "personality." These behaviors can be correlated, forming a behavioral syndrome. In this study, we assessed the repeatability and correlation of different behavioral traits, i.