Effects of migration distance on whole-body and tissue-specific energy use in American shad (<i>Alosa sapidissima</i>)

Leonard, Jill B.K.; McCormick, Stephen D.

doi:10.1139/f99-041

Cited by 59 publications

(58 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The increase in subdermal lipid stores observed prior to egress, particularly for juvenile Atlantic croaker, is consistent with the use of subdermal lipids to support migration (as seen in American shad; Leonard & McCormick 1999). If subdermal lipids are also used by juvenile summer flounder to undertake coastal migrations in the late fall, then a portion of the juveniles from Chesapeake Bay may not have sufficient energy to complete these directed movements (e.g.…”

Section: Discussionsupporting

confidence: 55%

See 1 more Smart Citation

Temporal dynamics of condition for estuarine fishes in their nursery habitats

Schloesser¹,

Fabrizio²

2016

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

The condition of individuals in a year class may contribute to recruitment variability due to differential survival of poor-and well-conditioned fish, but the temporal dynamics of juvenile fish condition are poorly understood. We examined inter-and intra-annual dynamics of condition for juveniles of 3 species collected from estuarine nursery areas of Chesapeake Bay from November 2010 to June 2014. We describe temporal patterns in length-based indices, the hepatosomatic index (HSI), and relative subdermal lipid estimates for juvenile summer flounder Paralichthys dentatus (n = 1771), Atlantic croaker Micropogonias undulatus (n = 3911), and striped bass Morone saxatilis (n = 874). Multiple indices provided a more complete understanding of energy-storage strategies for juveniles because temporal patterns among condition indices were not congruent for a given species. Most juvenile summer flounder and Atlantic croaker migrate from Chesapeake Bay in the fall, and both species exhibited increases in subdermal lipids in the time period prior to migration. For all species, individuals that remained in the estuary during winter exhibited high HSI values, indicating a common energy-storage strategy during winter. Mean condition of juveniles varied among year classes, but differences were inconsistent among indices, suggesting that energy was differentially stored among tissues for these year classes. Densitydependent effects contributed to variation in mean condition for summer flounder and striped bass. Our understanding of recruitment variability may be improved by assessing annual differences in mean condition as revealed by multiple indices.

show abstract

Section: Discussionsupporting

confidence: 55%

“…The fatmeter uses lowpower microwaves to measure subdermal lipid content in a non-destructive manner (Kent 1990, Crossin & Hinch 2005. In some fish species, subdermal lipid reserves are preferentially used to support migration (Leonard & McCormick 1999).…”

Section: Introductionmentioning

confidence: 99%

Temporal dynamics of condition for estuarine fishes in their nursery habitats

Schloesser¹,

Fabrizio²

2016

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

show abstract

“…Initially, lipid utilization is high and protein used sparingly from organs, but as fat stores drop below 5-10% of total lean dry body mass, protein sources, particularly those from breast muscle and then digestive organs, are increasingly used [53]. A similar general pattern of substrate utilization has also been found in fish [54] and recent work on European eel (simulating conditions of continuous swimming for 3 months) predicts declines in fat stores based on energy consumption of 30% (of fat stores averaging 20% of body weight). During natural migrations over 6 months covering 6000 km this translates into 60% of body fat usage, leaving only 40% of body fat in reserve for spawning [55].…”

mentioning

confidence: 99%

Limits to physical performance and metabolism across species

Turner¹,

Hulbert²,

Else³

2006

Current Opinion in Clinical Nutrition &Amp; Metabolic Care

View full text Add to dashboard Cite

show abstract

“…Thus, assuming that reproduction is a driving force for the ascent of adult fishes and that ascending involves a high loss of somatic energy (Dodson, 1997;Leonard and McCormick, 1999) AJ spends more energy than AH, when such aspect of reproductive strategy (migration) is considered. In fact, it was estimated that the costs with OI (egg size and egg numbers) are equal for both species but the overall strategy, the above parameter plus breeding time, is 25% more expensive in AH.…”

Section: Discussionmentioning

confidence: 99%

Patterns of investment of the reproductive strategy of two stream-dwelling Characidae

Mazzoni

Iglesias-Rios

2007

Braz. J. Biol.

View full text Add to dashboard Cite

The reproductive strategy of two congeneric species (Astyanax janeiroensis -AJ and Astyanax hastatus -AH) was assessed, in order to address the costs imposed by different investment patterns, on four major life history characters: migratory behaviour, breeding time, fecundity and egg size. Altitudinal segregation of young and adult individuals plus data from the literature indicated that AJ is a migratory species, whereas AH is non migratory. Breeding season (BS) analysis revealed that AH was reproductively active year-round (12 months), whereas AJ breeds during 9 months. Brood costs (Ovarian Investment) were almost the same for both species (AJ -364 oocytes / g and egg volume = 0.52 mm 3 ; AH -702 oocytes / g and egg volume = 0.27 mm 3 ). Reproductive costs (RC), considered as product of gamete production (OI) and gamete output (BS), were 1,703.7 for AJ and 2,274.0 for AH; thus RC is 25% higher in AH. It is concluded that the costs with OI (egg size and egg numbers) are equal for both species but as breeding season is larger for AH the overall strategy is 25% more expensive in AH. Thus, it is hypothesized that this 25% should be considered as the extra costs that AJ uses during migration and is compensated by its shorter breeding time (9 months versus 12 months of AH).Keywords: egg size, fecundity, breeding season, migration, rain forest stream, trade-off. Padrões de investimento da estratégia reprodutiva de duas espécies de Characidae de riacho ResumoA estratégia reprodutiva de duas espécies congenéricas (Astyanax janeiroensis -AJ e Astyanax hastatus -AH) foi analisada a fim de se determinar os custos energéticos impostos por diferentes padrões de investimento em quatro dos principais caracteres da história de vida de peixes: comportamento migratório, estação reprodutiva, fecundidade e tamanho dos ovócitos. A segregação espacial dos indivíduos jovens e adultos associada a informações da literatura indicaram que AJ é uma espécie migratória enquanto AH não migra. A análise sobre a estação reprodutiva (ER) revelou que AH se reproduz ao longo de todo o ciclo anual (12 meses) enquanto AJ se reproduz durante 9 meses. Os custos com a desova (Investimento Ovariano -IO) foram similares nas duas espécies (AJ -364 ovócitos/g e volume dos ovócitos = 0,52 mm 3 ; AH -702 ovócitos/g e volume dos ovócitos = 0,27 mm 3 ). O custo da reprodução (CR), considerado como o produto da produção de gametas (IO) e o tempo de liberação dos gametas (ER), foram 1.703,7 para AJ e 2.274,0 para AH; assim CR é 25% superior em AH. Concluímos assim, que os custos com IO (tamanho e número de ovócitos) são iguais para as duas espécies, mas como a estação reprodutiva é maior para AH, a estratégia como um todo é mais custosa para AH. Dessa forma, sugerimos que os 25% excedentes podem ser considerados como os custos extras que AJ necessita para a migração e são compensados pelo menor tempo da estação reprodutiva (9 meses em AJ versus 12 meses em AH).Palavras-chave: tamanho dos ovos, fecundidade, estação reprodutiva, migração, riacho de flores...

show abstract

Effects of migration distance on whole-body and tissue-specific energy use in American shad (Alosa sapidissima)

Cited by 59 publications

References 32 publications

Temporal dynamics of condition for estuarine fishes in their nursery habitats

Temporal dynamics of condition for estuarine fishes in their nursery habitats

Limits to physical performance and metabolism across species

Patterns of investment of the reproductive strategy of two stream-dwelling Characidae

Contact Info

Product

Resources

About