Socially induced reproductive synchrony in a salmonid: an approximate Bayesian computation approach

Koizumi, Itsuro; Shimatani, Ichiro K.

doi:10.1093/beheco/arw056

Cited by 13 publications

(13 citation statements)

References 54 publications

(3 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The temporal spread of these events is a product of both the number of reproductive events of an individual within a year, and the degree to which individuals across the population synchronise their reproduction. The timing of spawning is partially under genetic control (Otterå et al, 2012), but it can be influenced by the environment, nutritional status (Kennedy et al, 2010;Rideout & Tomkiewicz, 2011;Skjaeraasen et al, 2009) and (or) social cues (Koizumi & Shimatani, 2016). In many fish species, feeding and spawning areas are spatially segregated.…”

Section: Introductionmentioning

confidence: 99%

Conservation of spawning time between years in lumpfish Cyclopterus lumpus and potential impacts from the temporal distribution of fishing effort

Kennedy

Ólafsson²

2019

Fisheries Management Eco

View full text Add to dashboard Cite

Lumpfish, Cyclopterus lumpus L., has an extended ovary development period and a relatively long spawning season. It therefore seems unlikely that individuals spawning later in the season would be able to recover from spawning and develop their gonads in time to spawn during the early part of the season the following year. The hypothesis that individuals spawning early or late in a spawning season would spawn early or late the following year was tested using fish tagged in Iceland between 2008 and 2017. The tagging date and recapture date the following year were positively correlated with an average of 356 days at large (DAL). Fish sampled from the fishery indicate that tagging/recapture date gives an indication of spawning time. From this, it was concluded that spawning time in the current year can be used to predict spawning time the following year. As fishing effort was greatest at the end of April/beginning of May, it seems likely that fish that come to spawn at this time will be subject to a higher fishing mortality. Therefore, they will be less likely to spawn successfully than fish spawning earlier or later in the year. If spawning time is under genetic control, then this could have consequences for the spawning phenology of lumpfish.

show abstract

Section: Introductionmentioning

confidence: 99%

Conservation of spawning time between years in lumpfish Cyclopterus lumpus and potential impacts from the temporal distribution of fishing effort

Kennedy

Ólafsson²

2019

Fisheries Management Eco

View full text Add to dashboard Cite

show abstract

“…The Shiisorapuchi River is located in central Hokkaido, Japan, and is one of the several major branches of the Sorachi river system, all of which combine and empty into the Kanayama Reservoir (Figure ). The Shiisorapuchi River possesses a number of small tributaries, usually between 0.5 and 2 metres in width and less than 500 m in total length, which flow into the mainstem (Koizumi & Maekawa, ; Koizumi & Shimatani, ). These are categorised into two main groups: spring fed and nonspring‐fed tributaries.…”

Section: Methodsmentioning

confidence: 99%

“…The Shiisorapuchi River possesses a number of small tributaries, usually between 0.5 and 2 metres in width and less than 500 m in total length, which flow into the mainstem (Koizumi & Maekawa, 2004;Koizumi & Shimatani, 2016). These are categorised into two main groups: spring fed and nonspring-fed tributaries.…”

Section: Study Sitementioning

confidence: 99%

Seasonal patterns of downstream movement in partially migratory stream‐dwelling Dolly Varden

Ayer

Katahira

Fukui

et al. 2017

Ecology of Freshwater Fish

Self Cite

View full text Add to dashboard Cite

Migration is a common behaviour among salmonids, but not all individuals within a population migrate, instead becoming residents and remaining in their natal streams. This phenomenon, known as “partial migration,” is well studied among sea‐run and lake‐run populations; however, the lower migratory benefits and costs for mainstem‐run individuals question whether the same mechanisms can be applied for stream‐dwelling salmonids. In this study, we investigated main stem‐run timing and body condition of partially migratory stream‐dwelling Dolly Varden charr (Salvelinus malma) in the Shiisorapuchi River in central Hokkaido, Japan. Based on commonly observed patterns in sea‐run and lake‐run salmonids, we predicted that migration would occur during spring and consist predominantly of age 1 + females with some small subordinate males. Traps were placed at the mouths of two small tributaries along the Shiisorapuchi River periodically from May to December 2015. Adipose fin samples were taken for DNA to sex the individuals. Consistent to initial predictions, downstream movement occurs only once in the spring, dominated by age‐1 + females. Trapped fishes (presumed migrants) were slightly longer but slimmer compared to the fish caught in the tributaries (presumed resident), which may be equivalent to smolts in anadromous populations. Regardless of migratory habitat, mechanisms driving partial migration in salmonids may be the same as long as production between natal stream and feeding habitats is significantly different.

show abstract

“…Beside energy expenditure, the temporal distribution of breeding events within a season may be linked to ecological, pheromonal or behavioural cues that synchronize breeding activity (Gochfeld 1980; Ims 1990; Fürtbauer et al 2011). Here, internal and external stimulations probably interact, with the hormone-driven reproductive cycle and energetic condition determining whether an individual is ready to breed at a given time, and social or ecological factors triggering the actual breeding behaviour (Jovani and Grimm 2008; Koizumi and Shimatani 2016). At the ultimate level, reproductive synchrony affects intraspecific competition for resources (including mates; Emlen and Oring 1977) and the risk of predation on breeders or their offspring (Ims 1990).…”

Section: Introductionmentioning

confidence: 99%

The dynamics of spawning acts by a semelparous fish and its associated energetic costs

Tentelier

Bouchard

Bernardin

et al. 2018

Preprint

View full text Add to dashboard Cite

During the reproductive season, animals have to manage both their energetic and gametic budgets. In particular, for semelparous capital breeders with determinate fecundity and no parental care other than gametic investment, the depletion of energetic stock must match the depletion of gametic stock, so that individuals get exhausted just after their last egg is laid. Although these budgets are managed continuously, monitoring the dynamics of mating acts and energy expenditure at a fine temporal scale in the wild is challenging.This study aimed to quantify the individual dynamics of spawning acts and the concomitant energy expenditure of female Allis shad (Alosa alosa) throughout their mating season.Using eight individual-borne accelerometers for one month, we collected tri-axial acceleration, temperature, and pressure data that we analysed to i) detect the timing of spawning acts, ii) estimate energy expenditure from tail beat frequency and water temperature, and iii) monitor changes in body roundness from the position of the dorsally-mounted tag relative to the vertical.Female shad had a higher probability to spawn during warmer nights, and their spawning acts were synchronized within each active night. They underwent warmer temperature during the day, when they stayed deeper, and they swam faster at night, when they spent more energy. Over one month of spawning, they performed on average 15.75 spawning acts, spent on average 6 277 kJ and died with a significant portion of residual oocytes. The acceleration-based indicator of body roundness was correlated to condition coefficient measured at capture, and globally decreased through the spawning season, although the indicator was noisy and was not correlated to changes in estimated energy expenditure.Despite significant individual variability, our results indicate that female shad exhausted their energetic stock faster than their egg stock. Water warming might accentuate the mismatch between energetic and gametic stocks. Although perfectible, the three complimentary analyses of acceleration data are promising for in situ monitoring of energy expenditure related to specific behaviour.

show abstract

Socially induced reproductive synchrony in a salmonid: an approximate Bayesian computation approach

Cited by 13 publications

References 54 publications

Conservation of spawning time between years in lumpfish Cyclopterus lumpus and potential impacts from the temporal distribution of fishing effort

Conservation of spawning time between years in lumpfish Cyclopterus lumpus and potential impacts from the temporal distribution of fishing effort

Seasonal patterns of downstream movement in partially migratory stream‐dwelling Dolly Varden

The dynamics of spawning acts by a semelparous fish and its associated energetic costs

Contact Info

Product

Resources

About