Age and growth of<i>Neptunea arthritica</i>estimated from growth marks in the operculum

Miranda, Richard M.; Fujinaga, Katsuaki; Nakao, Shigeru

doi:10.1080/17451000701881706

Cited by 20 publications

(13 citation statements)

References 23 publications

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“…Cyclic temperature shifts in whelks might cause intense feeding activity during period of warmer water while benefiting from reduced metabolic cost during cold seasons (Sanford 2002). Growth studies of N. arthritica revealed that during the first year of life, individuals could reach a size near to 20 mm in SL based on frequency analysis (Fujinaga & Nakao 1996), while Miranda, Fujinaga and Nakao (2008) estimated that 1‐year‐old males reached 20.7 mm SL and females reached 18.1 mm, based on growth marks in the operculum. This suggests that the growth attained during 6 months of experiment (20 mm maximum SL) is in close proximity to the 1‐year growth observed under wild conditions.…”

Section: Discussionmentioning

confidence: 99%

Effect of water temperature and diet on growth and mortality ofNeptunea arthriticajuveniles

Miranda

Oba

Goshima

2009

Aquaculture Research

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The growth and mortality of Neptunea arthritica juveniles hatched from di¡erent egg masses (controlled conditions and ¢eld) reared at 10 and 15 1C, and provided with sardine (D1) and polychaete (D2) as foods were evaluated. Results showed that diet type and water temperature signi¢cantly a¡ect the growth and mortality. Interaction between these factors re-£ected robust relationship among them, but restricted exclusively to growth. Through the study period, juveniles treated at 10 1C showed maximum increments of 2.5 mm (shell length), 2.3 mm (shell width) and 0.25 g (body weight) from their initial size.While maximum values of those treated at 15 1C for the above-mentioned parameters were 7.6 mm, 5.5 mm and 1g respectively. In both cases, these increments were recorded for individuals fed with sardine. Mortality was signi¢cantly a¡ected by diets and water temperature, which signi¢cantly increased under D2 [10 1C (20^67%), 15 1C (70^87%)] or 15 1C [D1 (30^83%), D2 (70^87%)]. According to the results, juveniles of N. arthritica could be maintained under controlled conditions, which allows growth improvement. Mortality appears to be the limiting factor, but this could be improved by the implementation of e⁄cient culture method, basically oriented to increase the water quality. Aquaculture Research, 2009, 40, 428^436 E¡ect of water temperature and diet R M Miranda et al. E¡ect of water temperature and diet R M Miranda et al. E¡ect of water temperature and diet R M Miranda et al. r 2008 The Authors Journal Compilation r 2008 Blackwell Publishing Ltd, Aquaculture Research, 40, 428^436 E¡ect of water temperature and diet R M Miranda et al.

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Section: Discussionmentioning

confidence: 99%

Effect of water temperature and diet on growth and mortality ofNeptunea arthriticajuveniles

Miranda

Oba

Goshima

2009

Aquaculture Research

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“…Shelmerdine et al, 2007), sigmoidal growth equations such as logistic and Gompertz have been shown to successfully reconstruct the growth of other similar gastropod species (e.g. Neptunea arthritica [Miranda et al, 2008]). Growth rate data derived from δ 18 O of several shells from each sample site are compared to the statolith and operculum derived growth curves to investigate their accuracy.…”

Section: Age Estimates Based On Oxygen Isotope Analysismentioning

confidence: 99%

“…Shelmerdine et al, 2007). The logistic and Gompertz equations were chosen as some studies investigating the growth of marine gastropods have found sigmoidal growth (Miranda et al, 2008), which is best modelled by these equations (Windsor, 1932).…”

Section: Growth Curve Estimationmentioning

confidence: 99%

Age and growth rate estimations of the commercially fished gastropod Buccinum undatum

Hollyman

Chenery

Leng

et al. 2018

ICES Journal of Marine Science

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Calculating age and growth rate for the commercially important whelk, Buccinum undatum in the aid of fishery management has historically been undertaken using growth rings on the organic operculum. This is difficult due to their poor readability and confusion between two different sets of growth lines present. Recent work presented the calcium carbonate statolith as an alternative for age determination of B. undatum. Here we compare the use of statoliths and opercula, comparing their readability and creating growth curves for three distinct populations across the United Kingdom. Using these data, we also test the most appropriate growth equation to model this species. Lastly, we use oxygen isotope analysis of the shells to assign accurate ages to several individuals from each site. These data were used to test the accuracy of statolith and operculum ages. Statoliths, whilst more time consuming to process have improved clarity and accuracy compared with the opercula. This improved readability has highlighted that a Gompertz growth function should be used for populations of this species, when in past studies, von Bertalanffy is often used. Statoliths are a viable improvement to opercula when assessing B. undatum in the context of fishery monitoring and management.

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“…Thus, it seems that each female is able to pass through a different number of reproductive seasons in its lifetime (8 years) depending on the population it belongs to. Among other neogastropods, reports on age at maturity are diverse: females of the red whelk Neptunea antiqua mature at 6–9 years and live up to 12 years, whereas N. arthritica mature at 4.6–6 years and live up to 10 years (Power & Keegan, 2001; Miranda et al , 2008). Several Volutid species with longer potential lifespan than B. globulosus were also studied in the Argentine Sea: Adelomelon beckii lives for 29 years and attains maturity at 14 years whereas Adelomelon brasiliana, Zidona dufresnei and Odontocymbiola magellanica , although having lifespans varying from 12 to 20 years, mature at about the same age, 7 to 8 years (Giménez & Penchaszadeh, 2003; Bigatti et al , 2008; Arrighetti & Penchaszadeh, 2010).…”

Section: Discussionmentioning

confidence: 99%

Variability in size and age at maturity in the marine scavengerBuccinanops globulosus(Gastropoda: Nassariidae) from Patagonia

2015

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Growth rates and size-age at maturity are life history traits that combine in different ways to achieve maximal fitness. The marine scavenger Buccinanops globulosus was used as a model to explore the variation on female size-age at maturity and reproductive effort among three populations characterized by different growth rates (slow, moderate and rapid). This species constitutes the target of an artisanal fishery in North Patagonia. Here, a suite of different estimators of size-age at maturity derived from gonad histological analysis and the study of females carrying egg capsules were obtained. Data were modelled using a logistic function and the maturity patterns were compared among populations. We found that female size and age at maturity were variable and site-specific. The fastest-growing population showed the lowest reproductive effort. Slow and rapid-growing females mature at different sizes but at the same age whereas moderate-growing females mature both at a different size and age (intermediate size and at earlier age). Thus, results obtained here are difficult to reconcile with a single reaction norm for a single genotype in the studied populations. Growth rate variation is not enough to explain the patterns described here. The information provided could be used for the establishment of fishery management actions, such as minimum landing size.

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Age and growth ofNeptunea arthriticaestimated from growth marks in the operculum

Cited by 20 publications

References 23 publications

Effect of water temperature and diet on growth and mortality ofNeptunea arthriticajuveniles

Effect of water temperature and diet on growth and mortality ofNeptunea arthriticajuveniles

Age and growth rate estimations of the commercially fished gastropod Buccinum undatum

Variability in size and age at maturity in the marine scavengerBuccinanops globulosus(Gastropoda: Nassariidae) from Patagonia

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