Size at maturity of Mediterranean marine fishes

Tsikliras, Athanassios C.; Στεργίου, Κωνσταντίνος Ι.

doi:10.1007/s11160-013-9330-x

Cited by 64 publications

(57 citation statements)

References 163 publications

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“…Additional impact on marine populations is derived from largescale climatic phenomena (El Niño: Bakun & Broad 2003;North Atlantic Oscillation: Ottersen et al 2001;Atlantic Multidecadal Oscillation: Alheit et al 2014) and global warming, which is blamed for sea temperature increase (Levitus et al 2000; for the Mediterranean Sea see Bethoux & Gentili 1999). An increase in sea temperature may affect fish growth (Brander 1995), spawning period (Tsikliras et al 2010) size at maturity (Tsikliras & Stergiou 2014), and hence, recruitment and mortality, while at the same time it alters the distribution and biomass of marine populations (Cheung et al 2010) and community structure (Stenseth et al 2002).…”

Section: Introductionmentioning

confidence: 99%

Mean temperature of the catch increases quickly in the Mediterranean Sea

Tsikliras¹,

Στεργίου²

2014

Mar. Ecol. Prog. Ser.

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Section: Introductionmentioning

confidence: 99%

Mean temperature of the catch increases quickly in the Mediterranean Sea

Tsikliras¹,

Στεργίου²

2014

Mar. Ecol. Prog. Ser.

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“…This is appropriate, as the Brazilian coast spans a wide latitudinal range, from about 4 • N (Cape Orange) to 33 • S (Chuí), which generates differences in the reproductive patterns of the marine fishes among its three LME. Besides, size at first maturity usually presents differences between sexes and this may not be properly captured in the legislation (Tsikliras and Stergiou, 2014). The establishment of a "maximum size" could be an efficient management tool to protect the reproductive potential of the stocks (Froese, 2004) and has been recently discussed among recreational fishers for managing Brazilian stocks.…”

Section: Discussionmentioning

confidence: 99%

Analysis of reproductive patterns of fishes from three Large Marine Ecosystems

Trindade-Santos

Freire

2015

Front. Mar. Sci.

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Fish reproductive biology plays an important role for fishery management, especially in developing countries. The aim of this study was to compile all available information and analyze reproduction patterns of marine fishes in three Large Marine Ecosystems (LMEs): North, East, and South Brazil Shelves. We tested the hypothesis that the onset and duration of spawning season differ among these three LMEs; compared the ratio between length at first maturity and asymptotic length with the global trend observed; analyzed sex ratios; and tested whether females allocate more energy into reproduction than males. The following data were compiled from published sources and "gray" literature: sex ratio, spawning season, gonadosomatic indices (GSI), and length at first maturity (L m ). The reproductive load was estimated as L m /L ∞ . The median extension of the spawning season in the North, East, and South Brazil Shelves were 6.5, 6.0, and 5.0 months, respectively, with higher frequency during austral summer in South Brazil. Marine fishes from these three LMEs can be grouped in summer and non-summer spawners. About 96% of the cases the reproductive load was between 0.3 and 0.8, which is slightly shifted toward smaller values, compared with the global range of 0.4-0.9. Gonadosomatic indices for females were higher. Contrary to some expectations, there is seasonality in the reproduction of tropical fishes. However, seasonality is stronger in southern populations. Size at first maturity is not efficiently used as a tool for fisheries management in the ecosystems analyzed.

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“…This review article is the third in the series of reviews on the reproductive biology of Mediterranean marine fishes, the first being by Tsikliras et al (2010) on their spawning period, and complements the review on the size at maturity of Mediterranean fishes (Tsikliras & Stergiou, 2014).…”

Section: Introductionmentioning

confidence: 92%

“…The reproductive life history characteristics of stocks, such as spawning period (Tsikliras et al, 2010), length at maturity (Tsikliras & Stergiou, 2014) and fecundity (Despoti & Stergiou, 2013) are important for assessing the effects of fishing on populations and ecosystems (Jennings et al, 1998). Age at maturity (t m ) is a key element of the life history strategies of fishes and has been widely used in modelling and grouping fish species based on their traits (Winemiller & Rose, 1992;Rochet, 2000;King & McFarlane, 2003), as well as a stress indicator for fisheries (Trippel, 1995).…”

Section: Introductionmentioning

confidence: 99%

“…The availability of t m estimates is limited compared to length at maturity data (Tsikliras & Stergiou, 2014) because it requires either ageing of caught individuals or knowledge of the local growth parameters in order for t m to be estimated from the corresponding length at maturity. Therefore, the literature on the variability of t m among families and orders of fish is rather scarce.…”

Section: Introductionmentioning

confidence: 99%

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Age at maturity of Mediterranean marine fishes

Tsikliras

Στεργίου²

2014

Medit. Mar. Sci.

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In this review, we collected data on the age at maturity (t m ) and maximum reported age (t max ) for 235 stocks of Mediterranean marine fishes, belonging to 82 species, 37 families, 12 orders and 2 classes (Actinopterygii and Elasmobranchii). Among Actinopterygii (mean t m ± SD = 2.20 ± 1.43 y, n = 215), t m ranged from 0.3 y, for the common goby Pomatoschistus microps, to 12 y, for the dusky grouper Epinephelus marginatus, while among Elasmobranchii (mean t m ± SD = 5.94 ± 2.47 y, n = 20), t m ranged between 2.7 y, for brown ray Raja miraletus, and 12 y for the picked dogfish Squalus acanthias. Overall, t max ranged between 1 y, for the transparent goby Aphia minuta, and 70 y, for the wreckfish Polyprion americanus. Mean t max of Actinopterygii (t max ± SD = 10.14 ± 9.42 y) was lower than that of Elasmobranchii (t max ± SD = 14.05 ± 8.47 y); t m exhibited a strong positive linear relation with t max for both Actinopterygii (logt m = 0.58 x logt max -0.25, r 2 = 0.51, P < 0.001) and Elasmobranchii (logt m = 0.67 x logt max -0.006, r 2 = 0.51, P = 0.007). Mean t m /t max did not differ significantly with sex within Actinopterygii (ANOVA: F = 0.27, P = 0.60, n = 90; females: mean ± SD = 0.276 ± 0.143; males: mean ± SD = 0.265 ± 0.138) and Elasmobranchii (ANOVA: F = 1.44, P = 0.25, n = 10; females: mean ± SD = 0.499 ± 0.166; males: mean ± SD = 0.418 ± 0.133). Finally, the dimensionless ratio t m /t max was significantly lower (ANOVA: F = 31.04, P < 0.001) for Actinopterygii (mean ± SD = 0.270 ± 0.135, n = 180) than for Elasmobranchii, (mean ± SD = 0.458 ± 0.152, n = 20), when stocks with combined sexes were excluded from the analysis.

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Size at maturity of Mediterranean marine fishes

Cited by 64 publications

References 163 publications

Mean temperature of the catch increases quickly in the Mediterranean Sea

Mean temperature of the catch increases quickly in the Mediterranean Sea

Analysis of reproductive patterns of fishes from three Large Marine Ecosystems

Age at maturity of Mediterranean marine fishes

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