Energetics of early development in the viviparous yellowtail rockfish

Eldridge, Maxwell B.; Norton, Elizabeth C.; Jarvis, Brian M.; MacFarlane, R. Bruce

doi:10.1111/j.1095-8649.2002.tb02460.x

Cited by 8 publications

(7 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, rockfish larvae released prior to the spring transition enter a pelagic environment favorable for retention in nearshore waters but potentially unfavorable for foraging opportunities, whereas larvae released after the transition encounter improved prey conditions but may be negatively impacted by offshore transport and increased predation risk. (Boehlert & Yoklavich 1984, Boehlert et al 1986, Eldridge et al 2002, most of the females had already fertilized their eggs at the time of capture or did so soon after capture. Females were held singly in 575 l tanks in a flow-through seawater system with water temperatures maintained at 12°C (±1°C).…”

Section: Introductionmentioning

confidence: 99%

Trade-offs between size and energy reserves reflect alternative strategies for optimizing larval survival potential in rockfish

Fisher¹,

Sogard²,

Berkeley³

2007

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

Reproductive strategies balancing offspring size and offspring number have been well documented in empirical tests of life-history theory. Here we found an additional trade-off between offspring size and offspring condition. Among 5 species of live-bearing rockfishes (Sebastes spp.) from central Californian populations, we observed a negative relationship between larval length at parturition and the size of their oil globule (a triacylglycerol-rich energy reserve). When compared with a variety of performance variables (resistance to starvation, growth, startle-escape performance and routine activity levels), it appears that this trade-off leads to a conflict when trying to optimize survival potential, with differing benefits to each trait. A large oil globule greatly increases resistance to starvation, whereas larger body size is associated with numerous performance benefits likely to synergistically decrease predation-based mortality and increase success at capturing prey (increased startle speeds and distances, as well as more rapid onset of growth and larger size at age). The tradeoff between energy reserves and body size is further reflected in the seasonal patterns of parturition of the 5 species, with larvae having large oil globules and small body size being released in winter, when productivity in the California Current is low but transport is generally onshore, and those with small oil globule reserves and large body size released in late spring, when productivity is high but transport is generally offshore. These 2 apparent reproductive strategies also reflect subgeneric phylogenetic relationships, suggesting a potential lineage-specific basis for the contrast in larval traits. The results highlight the importance of measuring both physical and performance traits of larvae, as well as considering multiple attributes of both, when evaluating progeny quality.

show abstract

Section: Introductionmentioning

confidence: 99%

Trade-offs between size and energy reserves reflect alternative strategies for optimizing larval survival potential in rockfish

Fisher¹,

Sogard²,

Berkeley³

2007

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

show abstract

“…Few studies have characterized rockfish embryonic devel opment from fertilization through parturition; thus, knowledge of accurate gestation times is limited. Developmental sequence, however, appears to be com mon in the genus, as observed in studies of yellowtail rockfish (Eldridge et al 2002), black rockfish Sebastes melanops (Boehlert & Yoklavich 1984), and kurosoi S. schlegeli (Yamada & Kusakari 1991), although there were variations in the rate of development because of differences in water temperatures. Despite the much greater resource provisioning of chilipepper embryos compared to yellowtail and widow, the 3 species exhibited a strikingly similar pattern of yolk and oil depletion by developmental stage (Fig.…”

Section: Timing Of Parturitionmentioning

confidence: 86%

“…Fine-scale staging allowed increased precision in estimating the date of parturition but with a reduced sample size. Our estimates of parturition dates based on fine-scale staging relied on the assumption that widow rockfish and chilipepper have similar gestation times to those established for yellowtail rockfish by Eldridge et al (2002). Few studies have characterized rockfish embryonic devel opment from fertilization through parturition; thus, knowledge of accurate gestation times is limited.…”

Section: Timing Of Parturitionmentioning

confidence: 99%

“…Although they are a shelf species, yellowtail rockfish migrate vertically to feed (Pereyra et al 1969, Pearcy 1992 and, in contrast to most Sebastes species, can purge their swim bladders quickly upon ascent (Love et al 2002), reducing barotrauma-related injuries. Adult females have successfully been held in the laboratory until parturition, allowing the assessment of larval quality, timing of parturition, and fecundity (Eldridge et al 2002, Fisher et al 2007, Sogard et al 2008. Results from laboratory studies of yellowtail rock fish are compared with predictions made from preparturition yellowtail rockfish embryos in this study.…”

Section: Introductionmentioning

confidence: 99%

“…Fine-scale embryonic staging (Yamada & Kusakari 1991), with converted developmental timing (Eldridge et al 2002) for yellowtail rockfish. Refer to Fig.…”

Section: Fecunditymentioning

confidence: 99%

See 2 more Smart Citations

Maternal influence on timing of parturition, fecundity, and larval quality in three shelf rockfishes (Sebastes spp.)

Stafford¹,

Sogard²,

Berkeley³

2014

Aquat. Biol.

View full text Add to dashboard Cite

Differences in maternal investment and reproductive timing can have important consequences for offspring survival. Prior studies on nearshore rockfishes have shown significant effects of maternal age and size on the timing of parturition, fecundity, and larval quality, offering advantages to population persistence by maintaining age diversity in rockfish populations. In this study, reproduction in chilipepper Sebastes goodei, widow rockfish S. entomelas, and yellowtail rockfish S. flavidus was examined to determine whether age-and size-related effects on maternal investment and reproductive timing are exhibited in deeper-dwelling species of this genus. Parturition dates were derived from fine-scale staging of pre-parturition embryos from gravid females. Measurements of embryonic energy reserves (oil globule and yolk), indicators of condition, were used to estimate depletion rates and to test for maternal age and size effects on larval quality. For widow and yellowtail rockfish, larger or older rockfish gave birth earlier in the parturition season than younger, smaller fishes. Maternal factors of weight, length, or age were positively correlated to absolute and relative (weight-specific) fecundity in all species. A trade-off was observed between egg size and fecundity among species, with chilipepper displaying larger egg size and lower fecundity relative to widow and yellowtail rockfish. Embryonic reserves were weakly but significantly related to age only in chilipepper, with embryos from larger, older mothers having larger oil globules. Since the strength of maternal effects varies among Sebastes species, information on maternal influence can assist managers in identifying species most likely to benefit from the protection of age structure afforded by marine reserves or other fisheries regulations.

show abstract

Multiple paternity in viviparous kelp rockfish, Sebastes atrovirens

et al. 2006

View full text Add to dashboard Cite

Analysis of multilocus microsatellite genotypes revealed multiple paternity for all of the seven viable broods of larvae produced by kelp rockfish, Sebastes atrovirens (Jordan and Gilbert 1880), held jointly in a large aquarium tank (n = eight females and eight males). Only two of the eight experimental males were identified as fathers, and alleles not found in any of the captive males were present in all seven broods, demonstrating paternity by wild males external to the experiment. Thus, all of the females mated with one or more males prior to capture, confirming that female kelp rockfish are capable of storing sperm and controlling the overall timing of egg fertilization. These results highlight the potential for a paternal influence on larval quality through female mate choice and sperm competition.

show abstract

Energetics of early development in the viviparous yellowtail rockfish

Cited by 8 publications

References 21 publications

Trade-offs between size and energy reserves reflect alternative strategies for optimizing larval survival potential in rockfish

Trade-offs between size and energy reserves reflect alternative strategies for optimizing larval survival potential in rockfish

Maternal influence on timing of parturition, fecundity, and larval quality in three shelf rockfishes (Sebastes spp.)

Multiple paternity in viviparous kelp rockfish, Sebastes atrovirens

Contact Info

Product

Resources

About