Interannual variation in the reproductive cycle of the New Zealand snapper <i>Pagrus auratus</i> (Bloch &amp; Schneider) (Sparidae)

Scott, Stephen C.; Pankhurst, Neville William

doi:10.1111/j.1095-8649.1992.tb02698.x

Cited by 76 publications

(62 citation statements)

References 22 publications

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“…The effects of temperature can be differentially expressed depending on when in the annual thermal cycle spawning normally occurs, with increasing spring temperatures being required to cue maturation in spring and early summer spawners (e.g. Stacey 1984;Scott and Pankhurst 1992;Shimizu 2003), but elevated temperatures delaying the onset of maturation and ovulation in autumn-spawning species (reviewed in Pankhurst and King 2010). Temperature has a similarly important role in the modulation of post-fertilisation processes both through its rate-determining effects on embryogenesis and hatching (Pauly and Pullin 1988) and subsequent larval development (Howell et al 1998), growth (Jobling 1997) and survival (Sponaugle and Cowen 1996).…”

Section: Introductionmentioning

confidence: 99%

Effects of climate change on fish reproduction and early life history stages

Pankhurst

Munday

2011

Mar. Freshwater Res.

570

405

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Abstract. Seasonal change in temperature has a profound effect on reproduction in fish. Increasing temperatures cue reproductive development in spring-spawning species, and falling temperatures stimulate reproduction in autumnspawners. Elevated temperatures truncate spring spawning, and delay autumn spawning. Temperature increases will affect reproduction, but the nature of these effects will depend on the period and amplitude of the increase and range from phaseshifting of spawning to complete inhibition of reproduction. This latter effect will be most marked in species that are constrained in their capacity to shift geographic range. Studies from a range of taxa, habitats and temperature ranges all show inhibitory effects of elevated temperature albeit about different environmental set points. The effects are generated through the endocrine system, particularly through the inhibition of ovarian oestrogen production. Larval fishes are usually more sensitive than adults to environmental fluctuations, and might be especially vulnerable to climate change. In addition to direct effects on embryonic duration and egg survival, temperature also influences size at hatching, developmental rate, pelagic larval duration and survival. A companion effect of marine climate change is ocean acidification, which may pose a significant threat through its capacity to alter larval behaviour and impair sensory capabilities. This in turn impacts on population replenishment and connectivity patterns of marine fishes.

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Section: Introductionmentioning

confidence: 99%

Effects of climate change on fish reproduction and early life history stages

Pankhurst

Munday

2011

Mar. Freshwater Res.

570

405

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“…Similarly, at the species level temperatures experienced during winter spawning by warmer water populations of a species are close to those experienced during warm seasons by populations in more temperate areas, where the deviation in spawning from the month of minimum water temperatures is greater. For example, the spawning of Pagrus auratus in New Zealand is controlled by temperature, with the initiation of spawn at about 15°C the Wnish of spawning at about 20°C (Scott and Pankhurst 1992). Here, as in southern Australia, spawning deviates considerably from the month of minimum SST (Fig.…”

Section: Discussionmentioning

confidence: 99%

“…Secondly, there is evidence for the pre-eminence of temperature in determining the timing of spawning of at least one sparid. In New Zealand waters, the timing of initiation and completion of spawning of Pagrus auratus shows interannual variation, but is tightly cued on water temperature; spawning commences at 15°C and Wnishes at 20°C (Scott and Pankhurst 1992). Tight cueing of spawning to water temperature is not exclusive to P. auratus; a number of other sparids also spawn over a small range of temperatures (Manooch 1976;Manooch and Hassler 1978;Charvance et al 1984).…”

Section: Discussionmentioning

confidence: 99%

“…Where only the peak spawning month was reported, it was assumed to represent the median spawning month. Where both the duration of spawning and peak spawning month were reported, the median spawning month calculated from the duration of spawning Day et al (1981), Garratt (1993), Kyle (1986in Garratt 1993, Wallace (1975) Crossland (1977), Scott and Pankhurst (1992), Kailola et al (1993) Geoghegan and Chittenden (1982), Sheridan et al (1984) chrysops Bigelow and Schroeder (1953), Finkelstein (1969ain Geoghegan and Chittenden 1982, Finkelstein (1969b1971 in Eklund andTargett 1990) usually fell in the same month or within 1 month of the peak spawning month. In this case the median calculated from the duration of spawning was used in preference to the peak spawning month because criteria for the designation of peak spawning month were often unclear.…”

Section: Methodsmentioning

confidence: 99%

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Is the timing of spawning in sparid fishes a response to sea temperature regimes?

Sheaves

2006

Coral Reefs

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Published spawning seasons of sparid Wsh were investigated to determine if there were consistent patterns that could be related to large-scale physical variability, and whether these relationships were species-speciWc or characteristic of higher taxonomic groupings. For individual species, genera and the family Sparidae as a whole, there was a consistent pattern; spawning at lower latitudes was concentrated close to the month of lowest sea surface temperature, while spawning at higher latitudes was more variable with greater deviations from the month of minimum sea surface temperature. The distribution of sparids may be limited by a lack of tolerance of one or more early lifehistory stage to high water temperatures, so targeting spawning to the coolest part of the year could be a tactic allowing maximum penetration into warmer waters. Such a link between the physiology of early life-history stages and timing of spawning could have direct consequences for patterns of distributions over a number of taxonomic scales. If there are similar constraints on the reproduction of other species, even minor increases in water temperature due to global warming that may be within the tolerance of adults, may impose constraints on the timing of spawning, with Xow-on eVects for both species and whole ecosystems.

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“…These studies have identified consistent reproductive strategies such as iteroparity, multiple batch spawning, asynchronous oocyte development and indeterminate fecundity (Japan: Matsuyama et al 1991;New Zealand: Scott & Pankhurst 1992;Scott et al 1993). However, within these general reproductive strategies, variation has been documented with respect to the timing of spawning, length of season and the environmental conditions associated with spawning, such as water temperature and photoperiod (Japan: Higuchi 1977 in Mihelakakis & Yoshimatsu 1998;New Zealand: Crossland 1977a,b;Scott & Pankhurst 1992;Australia: Ferrell & Sumpton 1998;McGlennon 2003;Jackson 2007). Such geographic differences indicate the need to understand the reproductive biology of the species at the local scale to gain a clearer understanding of population dynamics.…”

Section: Introductionmentioning

confidence: 99%

The spawning dynamics of snapper (Chrysophrys auratus) in northern Spencer Gulf, South Australia

Saunders

Fowler

Gillanders

2012

New Zealand Journal of Marine and Freshwater Research

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This study investigated the inter-and intra-annual variation in the spawning dynamics of snapper (Chrysophrys auratus). Reproductive samples from northern Spencer Gulf, South Australia were collected over three seasons (2005/06, 2006/07 and 2007/08) and were analysed macro and microscopically. Spawning activity was determined by calculating estimates of spawning fraction and batch fecundities. The onset of spawning occurred in November but varied between years and corresponded with times when water temperature was between 18 8C and 20 8C. The length of the spawning season also differed between years. In each year the peak spawning activity occurred during December when fish spawned almost daily. Spawning frequency and relative batch size did not differ between the first two spawning seasons but, in the third season, batch size was considerably greater and spawning fractionally lower. These results are contrasted with a known recruitment of 0' over the three years of the study.

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Interannual variation in the reproductive cycle of the New Zealand snapper Pagrus auratus (Bloch & Schneider) (Sparidae)

Cited by 76 publications

References 22 publications

Effects of climate change on fish reproduction and early life history stages

Effects of climate change on fish reproduction and early life history stages

Is the timing of spawning in sparid fishes a response to sea temperature regimes?

The spawning dynamics of snapper (Chrysophrys auratus) in northern Spencer Gulf, South Australia

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