A pilot study of the performance of captive-reared delta smelt Hypomesus transpacificus in a semi-natural environment

Tien Chieh Hung, Marlin Rosales, Tomofumi Kurobe, Troy Stevenson, Luke Ellison, Galen Tigan, Marade Sandford, Chelsea Lam, Andrew Schultz, Swee Teh

Research output: Contribution to journalArticle

Abstract

A captive breeding programme was developed in 2008 for delta smelt Hypomesus transpacificus in reaction to dramatic population decline over several decades. We took 526 sub-adult captive-reared delta smelt and cultured them for 200 days without providing artificial food or water quality management to assess their performance once released in the wild. The results indicated captive-reared sub-adult delta smelt could survive in a semi-natural environment with uncontrolled water quality and naturally produced wild prey through spawning and into their post spawning phase.

Original languageEnglish (US)
JournalJournal of Fish Biology
DOIs
StateAccepted/In press - Jan 1 2019

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spawning
captive breeding
water quality
food quality
population decline
natural environment
Hypomesus transpacificus
breeding
water quality management
programme

Keywords

  • captive
  • delta smelt
  • refuge population
  • reintroduction
  • semi-natural environment

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science

Cite this

A pilot study of the performance of captive-reared delta smelt Hypomesus transpacificus in a semi-natural environment. / Hung, Tien Chieh; Rosales, Marlin; Kurobe, Tomofumi; Stevenson, Troy; Ellison, Luke; Tigan, Galen; Sandford, Marade; Lam, Chelsea; Schultz, Andrew; Teh, Swee.

In: Journal of Fish Biology, 01.01.2019.

Research output: Contribution to journalArticle

Hung, Tien Chieh ; Rosales, Marlin ; Kurobe, Tomofumi ; Stevenson, Troy ; Ellison, Luke ; Tigan, Galen ; Sandford, Marade ; Lam, Chelsea ; Schultz, Andrew ; Teh, Swee. / A pilot study of the performance of captive-reared delta smelt Hypomesus transpacificus in a semi-natural environment. In: Journal of Fish Biology. 2019.
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