Does salinity affect somatic growth in early juvenile Atlantic croaker, Micropogonias undulatus (L.)?

Peterson, Mark S.; Comyns, Bruce H.; Rakocinski, Chet F.; Fulling, Gregory L.

doi:10.1016/s0022-0981(98)00173-7

Cited by 52 publications

(31 citation statements)

References 19 publications

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“…Plankton and nekton segregate along salinity gradients and differences in salinity alone can potentially affect recruitment success by causing changes in growth rates of fish larvae and juveniles (Peterson et al 1999;Landaeta and Castro 2006) and other species with meroplanktonic stages (i.e., squat lobster, León et al 2008). Furthermore, fjords are a source of suspended sediments and floating ice.…”

Section: Discussionmentioning

confidence: 99%

Larval fish distribution, growth and feeding in Patagonian fjords: potential effects of freshwater discharge

et al. 2011

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In fjord systems, freshwater inputs occur by ice melting and river discharge, affecting seawater salinity along fjord and adjacent waters, and potentially the ecology of early life stages of marine fish occurring in the area. During austral spring 2008, a bio-oceanographic cruise was carried out in southern Chile between 47°00′ and 50°09′S, an area influenced by Baker River discharge and ice melting of Northern and Southern Ice Fields, the largest glaciers from Patagonia. Surface salinity and temperature ranged from 1.22 to 32.80, and from 8.11 to 10.68°C, respectively. Larval lightfish Maurolicus parvipinnis (Sternoptychidae) and Falkland sprat Sprattus fuegensis (Clupeidae) were the dominant species, with abundances of 2.2-39.9 larvae 10 m −2 and 3.4-77.1 larvae 10 m −2 , respectively. Postflexion stages of both species were collected mainly in surface density fronts. Otolith-based growth analyses estimated linear growth rates of 0.136 mm day −1 for M. parvipinnis of 4.1-15.1 mm, and 0.448 mm day −1 for S. fuegensis of 5.4-20.5 mm. Recent Otolith Growth Index (ROGI), based on the residual analysis of the relationship between increment width of outermost five microincrements and otolith radius, indicates that larval M. parvipinnis collected in low salinity waters showed a reduction of its recent growth rate compared those collected in saltier waters. Also, ROGI was positively correlated with salinity of the water column for larval M. parvipinnis. Gut content analysis showed that large larvae collected near sources of freshwater had lower number of prey in its guts and preyed on different items than fish larvae collected in saltier waters. Therefore, freshwater inputs from rivers and glaciers from Patagonia affected horizontal distribution, recent growth and feeding of larval fish in fjords and channels of southern Chile.

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Section: Discussionmentioning

confidence: 99%

Larval fish distribution, growth and feeding in Patagonian fjords: potential effects of freshwater discharge

et al. 2011

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“…Survival and growth can vary based on the spatially and temporally explicit environmental conditions into which young recruits initially settle, and can be species-specific. For example, earlier laboratory experiments on young Atlantic croaker, Micropogonias undulatus, involving a fixed water temperature (25°C) and variable salinity (Peterson et al 1999) indicated that young fish Figure 1. Percentage (mean ± 1 SD) survival of young spot exposed to 12 combinations of water temperature (12, 17, 22°C) and salinity (3, 10, 17, 24 psu).…”

Section: Discussionmentioning

confidence: 99%

Defining the fundamental physiological niche of young estuarine fishes and itsrelationship to understanding distribution, vital metrics, and optimal nurseryconditions

Peterson

Comyns

Rakocinski

2004

Environmental Biology of Fishes

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SynopsisBecause estuarine nekton are 'integrators of the environment' abiotic and biotic factors can influence or constrain the relative value of estuarine nursery zones. Recent laboratory experiments on young spot, Leiostomus xanthurus, indicate that both water temperature and salinity significantly affect somatic growth. These experimental data contrast with previous work on young Atlantic croaker, Micropogonias undulatus, white trout, Cynoscion arenarius, and mullet, Mugil sp. Together these results suggest that quantifying vital metrics of nekton, such as survival and growth, along realistic environmental gradients through critical laboratory experiments, allows a more accurate definition of constraints on habitat use. Our studies of factors influencing recruitment success in both winter-and spring/summer-spawning fishes illustrate seasonal as well as intrafamilial differences in growth. Effective management of coastal ecosystems must take into account both variability in abiotic conditions and the nested habitat component, both of which can be modified by coastal development, which could lead to reduced productivity and sustainability of these estuarine landscapes.

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“…Despite this, the similar temporal pattern of correlations between juvenile and larval growth between the 2 estuaries suggests that processes influencing juvenile growth occurred in both Peterson et al 1999, Rakocinski et al 2000.…”

Section: Discussionmentioning

confidence: 95%

Environmental influences on the relationship between juvenile and larval growth of Atlantic croaker Micropogonias undulatus

Searcy¹,

Eggleston²,

Hare³

2007

Mar. Ecol. Prog. Ser.

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Does salinity affect somatic growth in early juvenile Atlantic croaker, Micropogonias undulatus (L.)?

Cited by 52 publications

References 19 publications

Larval fish distribution, growth and feeding in Patagonian fjords: potential effects of freshwater discharge

Larval fish distribution, growth and feeding in Patagonian fjords: potential effects of freshwater discharge

Defining the fundamental physiological niche of young estuarine fishes and itsrelationship to understanding distribution, vital metrics, and optimal nurseryconditions

Environmental influences on the relationship between juvenile and larval growth of Atlantic croaker Micropogonias undulatus

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