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A Simple Growth Model for Salmonids in Hatcheries
Abstract
A simple growth model for salmonids in hatcheries was developed from several formulations presented in the literature. The model selected was W t0.33 = W 00.33 + (T/1000)t where W t = weight at time t (g), W 0 = initial weight, T = average temperature (°C), and t = time in days. The model was chosen from a number of possible formulations on the basis of its simplicity. Additional attributes are W 0.33 is linear with time, the slope of the line W 0.33 vs. time (termed growth slope) is linear with temperature (i.e. T/1000) over the temperature range commonly found in hatcheries that rear salmonids, and W 0.33 is easily converted to length. Tests of the model on wild stock steelhead in British Columbia hatcheries provided good results under normal operating conditions of feeding, loading, etc. Applications of the model are also presented, including the development of a growth coefficient allowing comparisons of growth rate corrected for fish size and temperature effects.Key words: growth model, salmonids, fish culture
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Cited by
Lugert, V., Thaller, G., Tetens, J., Schulz, C., & Krieter, J. (2016) · Reviews in Aquaculture · doi:10.1111/raq.12071 · Cited by 347
Refstie, S., Sahlström, S., Bråthen, E., Baeverfjord, G., & Krogedal, P. (2005) · Aquaculture · doi:10.1016/j.aquaculture.2005.01.001 · Cited by 262
CHO, C., & BUREAU, D. (1998) · Aquatic Living Resources · doi:10.1016/s0990-7440(98)89002-5 · Cited by 255
Bazyar Lakeh, A. A., Ahmadi, M. R., Safi, S., Ytrestøyl, T., & Bjerkeng, B. (2010) · Journal of Applied Ichthyology · doi:10.1111/j.1439-0426.2009.01349.x · Cited by 41
Metadata
- Authors
- Iwama, G. K., & Tautz, A. F.
- Venue
- Canadian Journal of Fisheries and Aquatic Sciences
- Publisher
- Canadian Science Publishing
- Published
- 1981-06-01
- Volume
- 38
- Issue
- 6
- Pages
- 649-656
- ISSN
- 0706-652X (ISSN-L)
- 1205-7533
- OpenAlex
- W2128069416
- Cited by
- 340
- References
- 0
- FWCI
- 0.89
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: A Simple Growth Model for Salmonids in Hatcheries. https://app.cochat.ai/papers/10.1139/f81-087
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- Iwama, G. K., & Tautz, A. F. (1981). A Simple Growth Model for Salmonids in Hatcheries. Canadian Journal of Fisheries and Aquatic Sciences. https://doi.org/10.1139/f81-087
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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