Autumn Field School

Title: "Collecting High-Quality Data: Fieldwork at Tomakomai Experimental Forest for Learning"

Organizer: Osamu Kishida (Hokkaido University), Yoichiro Kanno (Colorado State University)

Objective:

In nature, a multitude of complex factors intertwine to shape patterns in population size and individual characteristics of organisms. We aim to identify the primary driving factors within this complexity and detect the effects of anticipated factors based on our favorite hypotheses. The key to successful research lies in "collecting high-quality data." Without minimizing measurement errors and frequent mistakes in data collection and recording, no matter how sophisticated our statistical analyses, we cannot reach the true answers. Moreover, inadequate data quantity only yields questionable results. How do large-scale surveys involving numerous individuals ensure error-free data collection? This autumn school takes place in the field, providing an opportunity to learn the know-how of fieldwork. Participants will gain practical experience by engaging in a fish population tracking survey at the renowned Tomakomai Experimental Forest of Hokkaido University, known for its significant contributions in the field of ecology.

Currently, the Tomakomai Experimental Forest conducts continuous tracking surveys of over 2,000-3,000 salmonid fish over a distance exceeding 5 km. Captures are conducted at least twice a year along the entire stretch, involving measurements, photography, and sampling of DNA samples after individual identification using RFID tags. The RFID tags also provide information on individual location and movement. In this autumn field school, participants will experience a range of individual tracking methods, fish stomach content sampling techniques, and learn the latest technologies in fish ecology. They will also acquire skills to facilitate large-scale fieldwork smoothly and error-free. From undergraduate students with little fieldwork experience to professional researchers involved in (or aspiring to conduct) surveys with large cohorts, we encourage enthusiastic participation.

Content:

1. Sampling Surveys

   - Observation of fish capture using electric shocker

   - Experience of fish stomach content collection (gut flushing method)

   - Measurements

   - Application of PIT tags (microchips)

   - Photography

   - Collection of DNA samples

2. Behavioral Surveys

   - Observation of fixed PIT tag antenna systems

   - Investigation of locations using portable PIT tag antennas

Meeting and Closing:

Meeting: October 27th (Friday) - 13:00 at JR Minami Chitose Station

Transfers to Tomakomai Research Forest by bus.

Closing: October 27th (Friday) - After the conclusion of the school, around 17:00, transfers to JR Minami Chitose Station by bus.

(From JR Minami Chitose Station to Sapporo Station, a 36-minute ride on the Rapid Airport Express)