Reproductive biology of bream Abramis brama (L.) in the lower reaches of the Irtysh River, China

Zhang, Zhiming; Liu, Chengjie; Ding, Huiping; Xie, Peng; Ma, Xiao; Yan, Guo; Xie, Chao

doi:10.1007/s00343-017-0198-9

Cited by 4 publications

(2 citation statements)

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“…Based on the previous study, there was no significant difference between the growth and maturation of males and females, and the sex ratio (M/F) was 1.06:1, which showed no significant deviation from 1:1 (Zhang et al 2017). Hence, yield per recruit (YPR) and spawning stock biomass per recruit (SSB/R) models were developed for the pooled data.…”

Section: Per-recruit Analysismentioning

confidence: 99%

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An assessment of European bream Abramis brama (Linnaeus, 1758) fishery in the downstream of the Irtysh River in China

Ding

Zhang

Xie

et al. 2019

Journal of Freshwater Ecology

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Per-recruit analyses, with consideration for uncertainty in growth, natural mortality and maturity, were conducted for European bream Abramis brama in the downstream section of the Irtysh River in China to assess its status. The Chapman-Robson method produced an estimate of total mortality rate (Z) of 0.65 year À1. The natural mortality rates (M) were estimated as 0.13 and 0.26 year À1 , resulting in corresponding estimates of current fishing mortality rate (F cur) of 0.52 and 0.39 year À1 , respectively. All the estimates of yield per recruit (YPR), spawning stock biomass per recruit (SSB/R) and corresponding biological reference points (BRPs) were sensitive to M. The uncertainty of growth and maturity parameters had limited impacts on the estimates of BRPs, but had a large effect on the YPR and SSB/R outputs. Our findings indicate that A. brama may be at higher risk of growth overfishing than those of recruitment overfishing. In addition, increasing the t c to nine years might ensure that the spawning potential ratios (SPRs) are above the management targets under all ranges of F with comparatively small impacts on YPR regardless of M. In addition to providing a basic assessment for A. brama in the downstream of the Irtysh River in China, our study presents a comprehensive approach that may be useful for data-limited species in other fisheries.

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Section: Per-recruit Analysismentioning

confidence: 99%

“…The biology of A. brama has been extensively studied (e.g. Goldspink 1978;Kangur 1996;Treer et al 2003;Zhang et al 2016;Zhang et al 2017). To date, no stock assessment has been conducted for A. brama in the Irtysh River nor in its European home range.…”

Section: Introductionmentioning

confidence: 99%