Advancing breeding in stickleback (Gasterosteus aculeatus) to produce two reproductive cycles per year.

  title={Advancing breeding in stickleback (Gasterosteus aculeatus) to produce two reproductive cycles per year.},
  author={Jessica Sattler and Janette W. Boughman},
  journal={Journal of fish biology},
The effects of photoperiod and temperature manipulation on reproductive cycles in threespine stickleback Gasterosteus aculeatus were examined. The experimental "advanced group" conditions were adjusted to simulate two reproductive seasons within a calendar year by adjusting light and temperature cycles. G. aculeatus subject to advanced conditions had two reproductive cycles per year, grew at normal rates, and suffered little additional mortality. The research of many stickleback scientists… 



Annual reproductive cycle in two free living populations of three-spined stickleback (Gasterosteus aculeatus L.): patterns of ovarian and testicular development

An improved scale of gonadal development in conjunction with the determined indices and fecundity give a comprehensive description of the reproductive cycle, providing a universal scale that can be successfully used to distinguish all phases of gametogenesis in sticklebacks in different habitats.

Prolonged life span among endemic Gasterosteus populations

Low productivity habitats and refuge against gape-limited piscivores are associated with the greatest longevity among these populations, and recent full genome sequence for stickleback provides opportunities for locating genetic markers for extended longevity.

Interspawning interval of wild female three-spined stickleback Gasterosteus aculeatus in Alaska.

The interspawning interval of females of wild three-spined stickleback may be unable to sustain the initial rate of reproduction as energy stores that support the rapid growth of vitellogenic oocytes are depleted.

Effects of Food and Density On the Reproductive Biology of the Threespine Stickleback With a Hypothesis On Population Limitation in Sticklebacks

Changes in the abundance of a stickleback population over a decade are described and it is suggested that changes in the reproductive output of males and females in response to changes in food supply and fish density could account for the changes in abundance.

Effect of variable food levels on reproductive performance of breeding female three‐spined sticklebacks

Egg characteristics and, to a lesser extent, batch fecundity are insensitive to current rate of food consumption, but the interval between spawnings is sensitive to both current and previous rates of consumption.

Mechanisms in the Photoperiodic Control of Reproduction in the Stickleback

Although plasma melatonin levels are high at night and low during the day, experiments using melatonin administration via the water indicate that melatonin is of no or little importance for the photoperiodic response.

Seasonal effects of photoperiod and temperature on spermatogenesis and male secondary sexual characters in the three-spined stickleback, Gasterosteus aculeatus L.

Spermatogenesis was more active and the kidney more suppressed in 8’h L: 16 h D at 18 °C than in other groups in winter, indicating androgen-inhibition as a major factor in the control of spermatogenetic activity.