Transition to viviparity in the order Scorpaeniformes: Brief review

Павлов, Д. А.; Emel’yanova, N. G.

doi:10.1134/s0032945213010116

Cited by 17 publications

(11 citation statements)

References 54 publications

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“…). Ocean perch are live‐bearing (Pavlov and Emel'yanova ) and have a winter reproductive period with fertilization occurring in May/June, followed by gestation through the winter and parturition in October/November (Park ). The timing of increases in otolith Sr:Ca corresponds with gestation and parturition, and it is possible the seasonal environmental signal (i.e., upwelling) aliases the underlying cause of Sr:Ca fluctuation in ocean perch otoliths.…”

Section: Discussionmentioning

confidence: 99%

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Coupling biogeochemical tracers with fish growth reveals physiological and environmental controls on otolith chemistry

Grammer

Morrongiello

Izzo

et al. 2017

Ecological Monographs

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Biogeochemical tracers found in the hard parts of organisms are frequently used to answer key ecological questions by linking the organism with the environment. However, the biogeochemical relationship between the environment and the biogenic structure becomes less predictable in higher organisms as physiological processes become more complex. Here, we use the simultaneous combination of biogeochemical tracers and fish growth analyzed with a novel modeling framework to describe physiological and environmental controls on otolith chemistry in an upwelling zone. First, we develop increasingly complex univariate mixed models to describe and partition intrinsic (age effects) and extrinsic (environmental parameters) factors influencing fish growth and otolith element concentrations through time. Second, we use a multivariate mixed model to investigate the directionality and strength between element‐to‐element and growth relationships and test hypotheses regarding physiological and environmental controls on element assimilation in otoliths. We apply these models to continuous element (Na, Sr, Mg, Ba, Li) and growth increment profiles (monthly resolution over 17 yr) derived from otoliths of reef ocean perch (Helicolenus percoides), a wild‐caught, site‐attached, fully marine fish. With a conceptual model, we hypothesize that otolith traits (elements and growth) driven by environmental conditions will correlate both within an otolith, reflecting the time dependency of growth and element assimilation, and among individuals that experience a similar set of external conditions. We found some elements (Sr:Ca and Na:Ca) are mainly controlled by physiological processes, while other elements (Ba:Ca and Li:Ca) are more environmentally influenced. Within an individual fish, the strength and direction of correlation varies among otolith traits, particularly those under environmental control. Correlations among physiologically regulated elements tend to be stronger than those primarily controlled by environmental drivers. Surprisingly, only Ba:Ca and growth are significantly correlated among individuals. Failure to appropriately account for intrinsic effects (e.g., age) led to inflated estimates of among individual correlations and a depression of within individual correlations. Together, the lack of among‐individual correlations of otolith traits in properly formulated models and the biases that can be introduced by not including appropriate intrinsic covariates suggest that caution is needed when assuming multi‐elemental signatures are reflective solely of shared environments.

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Section: Discussionmentioning

confidence: 99%

“…a) at depths between 43 and 119 m (mean 80 m). Ocean perch are lecithotrophic (live bearing; Pavlov and Emel'yanova ) and demersal as both juveniles and adults (Park , Smith et al. ).…”

Section: Methodsmentioning

confidence: 99%

Coupling biogeochemical tracers with fish growth reveals physiological and environmental controls on otolith chemistry

Grammer

Morrongiello

Izzo

et al. 2017

Ecological Monographs

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“…While the females of S. guttata , from the Southern Californian Bight, and S. porcus also grow to a larger size than their males, further paralleling the situation with N. pandus , the reverse is true for S. cardinalis and S. notata . The large disparity in the I GS values between females and males of N. pandus and other Scorpaena species may be an adaptation towards a reproductive strategy of internal fertilization exhibited by the closely related Helicolenus and Sebastes ( e.g ., Sequeira et al ., 2003; Wourms, 1991), as this strategy does not require males to produce/store large volumes of sperm (Pavlov & Emel'yanova, 2013).…”

Section: Discussionmentioning

confidence: 99%

The life history characteristics of Neosebastes pandus and the relationship between sexually dimorphic growth and reproductive strategy among Scorpaeniformes

Coulson

2020

Journal of Fish Biology

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Scorpaeniformes are an important component of commercial and recreational fisheries world‐wide. The Neosebastes species, found in the western Pacific and south‐east Indian Ocean, have received little attention from a research perspective. Samples of the bighead gurnard perch, Neosebastes pandus, collected from the lower west and south coasts of Western Australia, were used to undertake the first comprehensive investigation of the biological characteristics of a Neosebastes species. Opaque zones in sectioned sagittal otoliths were validated as forming annually. Female N. pandus grow to a significantly larger size, on average, than males and dominate the largest size classes, while males, growing to a smaller size, accumulate in the intermediate size classes. Although males were far less numerous than females in those age classes in which both sexes were found, males and females attain similar maximum ages >25 years. Neosebastes pandus spawns over a brief period between May (austral late autumn) and July (austral mid‐autumn) when water temperature and day length are declining. The mean monthly gonadosomatic indices (GSI, IGS) values of females during the spawning period are 37–50 times higher than those of males, which mature at an earlier age and smaller length compared to females. Histological examination of the ovaries of females indicate that their structure is consistent with “general” teleost ovarian anatomy and thus differs from Scorpaena, Helicolenus and Sebastes species whose ovaries are adapted for specialized reproductive modes. The reproductive strategy of N. pandus of maximizing the reproductive output of females, by this sex attaining a larger size than males and pair spawning (i.e., large disparity in IGS values) demonstrates the close lineage between the Neosebastes and other Scorpaeniformes, such as the Scorpaena, Helicolenus and Sebastes.

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“…Base maps and transects generated using Ocean Data View software (Schlitzer et al, 2015). (Data sources for A: Bostock et al, 2013;Ganachaud et al, 2014;Qu et al, 2009;Ridgway and Dunn, 2003;Sokolov and Rintoul, 2000. ) southwest Pacific Ocean; (ii) compare the linear increase of regional otolith-based 14 C curves for the southwest Pacific Ocean to examine temporal 14 C transport through the water column; and (iii) present a compilation of regional otolith, coral and atmospheric 14 C curves for the southwest Pacific Ocean to examine temporal trends in 14 C transport.…”

Section: Oceanographic Setting Of the Southwest Pacific Oceanmentioning

confidence: 99%

“…1A). The Australia/New Zealand region of the southern Pacific Ocean is primarily influenced by the South Equatorial Current (SEC) of the South Pacific Gyre (SPG) transporting three main water masses: Upper Thermocline Waters (UTW, σ θ ∼ 24.5; origin: subducted centre of SPG), Lower Thermocline Waters (LTW, σ θ ∼ 26.2; origin: subducted in part northeast of New Zealand) and Southeast Pacific Antarctic Intermediate Water (SP AAIW, σ θ ∼ 27.1; origin: sub- Bostock et al, 2013;Qu et al, 2009). The SEC turns south as it nears Australia and becomes the East Australian Current (EAC), the highly variable, western boundary current of the SPG.…”

Section: Oceanographic Setting Of the Southwest Pacific Oceanmentioning

confidence: 99%

Investigating bomb radiocarbon transport in the southern Pacific Ocean with otolith radiocarbon

Grammer

Fallon

Izzo

et al. 2015

Earth and Planetary Science Letters

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Transition to viviparity in the order Scorpaeniformes: Brief review

Cited by 17 publications

References 54 publications

Coupling biogeochemical tracers with fish growth reveals physiological and environmental controls on otolith chemistry

Coupling biogeochemical tracers with fish growth reveals physiological and environmental controls on otolith chemistry

The life history characteristics of Neosebastes pandus and the relationship between sexually dimorphic growth and reproductive strategy among Scorpaeniformes

Investigating bomb radiocarbon transport in the southern Pacific Ocean with otolith radiocarbon

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