Validation of growth increments in stylets, beaks and lenses as ageing tools in Octopus maya

Rodriguez-Dominguez, Almendra; Rosas, Carlos; Méndez‐Loeza, Iván; Markaida, Unai

doi:10.1016/j.jembe.2013.10.001

Cited by 24 publications

(16 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Validation of the daily deposition of growth increments in beaks is widely studied in octopod O. vulgaris (Oosthuizen 2003;Canali et al 2011;Perales-Raya et al 2014a, b) and O. maya (Rodríguez-Domínguez et al 2013;Bárce-nas et al 2014). Unfortunately, unlike octopods and sepioids, squid are difficult to rear in the laboratory (Iglesias et al 2014).…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, a major reason for this underestimation is the existence of some erosion in the rostral area used for biting and tearing prey (Hernández-López et al 2001;Perales-Raya et al 2010;Canali et al 2011), although specimens analyzed in the current study were selected to minimize the effect of this erosion. However, such underestimation was not shown in the paralarvae of O. vulgaris, for which erosion is minimal (Hernández-López et al 2001) and in laboratory raised O. maya that were fed on soft paste which reduced the beak's erosion (Rodríguez-Domínguez et al 2013;Bárcenas et al 2014).…”

Section: Discussionmentioning

confidence: 99%

“…In recent years, laboratory culture and marking have been the most popular validation methods for examining the periodicity of increment formation in sepioid cuttlebone (Bettencourt and Guerra 2001;Chung and Wang 2013) and octopod stylet (Doubleday et al 2006;Hermosilla et al 2010), lenses (Rodríguez-Domínguez et al 2013) and beaks (Oosthuizen 2003;Bárcenas et al 2014). By comparing the increment number with the actual age and elapsed days after marking or between two marks, daily deposition of the growth increments in beaks was validated for two octopods, Octopus vulgaris (Oosthuizen 2003;Canali et al 2011;Perales-Raya et al 2014a, b) and Octopus maya (Rodríguez-Domínguez et al 2013;Bárcenas et al 2014). Nevertheless, unlike sepioid and octopod, squid, especially adult individuals, are difficult to raise in the laboratory (Iglesias et al 2014).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Determination of squid age using upper beak rostrum sections: technique improvement and comparison with the statolith

Liu

Chen

et al. 2015

Mar Biol

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Determination of squid age using upper beak rostrum sections: technique improvement and comparison with the statolith

Liu

Chen

et al. 2015

Mar Biol

View full text Add to dashboard Cite

show abstract

“…Particularly in octopods, beaks have provided some positive results in reading growth increments of Octopus vulgaris paralarvae (Hernandez-Lopez et al 2001) and adults (Canali et al 2011, Perales-Raya et al 2010. Stylet Increment Analysis has been applied and daily growth increment deposition has been validated in Octopus vulgaris (Hermosilla et al 2010), Octopus pallidus (Doubleday et al 2006), Octopus maya (Rodríguez-Domínguez et al 2013) and Octopus (cf) tetricus (Leporati and Hart 2014).…”

Section: Introductionmentioning

confidence: 99%

Spatial distribution and population structure of fiddler crabs in an Indian Sundarban mangrove

Sen¹,

Homechaudhuri²

2015

Sci. Mar.

View full text Add to dashboard Cite

Age and growth of the horned octopus Eledone cirrhosa are estimated for the first time by stylet increment analysis. Specimens were collected between March 2009 and March 2010 from the commercial trawl fishery operating off northwestern Iberian coasts. A pool of stylets representing all size classes were defined by means of modal progression analysis performed separately for each sex in northern and western fishing grounds over a total of 2220 individuals (306 males and 595 females from the northern fishing ground; and 379 males and 940 females from the western fishing ground). In total, 122 stylets belonging to individuals with a total weight ranging from 67 to 950 g were successfully analysed. Age of the specimens was estimated assuming a daily deposition rate of growth increments within the stylet. Estimated age of the specimens varied from 106 to 516 days. Differential longevity between sexes was observed, with females reaching a life span of 17 months while males attained reached only 14 months, although the possibility that this difference might be even greater is discussed. Based on estimated age, hatching date was back-calculated and it was concluded that hatching occurs throughout the year, with a peak in winter. Relative instantaneous growth rates estimated for 90-day age classes, ranged from 0.03% to 2.17% of body weight per day, depending on age. The results obtained are compared with the information available on this species.

show abstract

“…Particularly in octopods, beaks have provided some positive results in reading growth increments of Octopus vulgaris paralarvae (HernandezLopez et al 2001) and adults (Canali et al 2011, PeralesRaya et al 2010. Stylet Increment Analysis has been applied and daily growth increment deposition has been validated in Octopus vulgaris (Hermosilla et al 2010), Octopus pallidus (Doubleday et al 2006), Octopus maya (Rodríguez-Domínguez et al 2013) and Octopus (cf) tetricus (Leporati and Hart 2014).…”

Section: Introductionmentioning

confidence: 99%

Determination of age and growth of the horned octopus <em>Eledone cirrhosa</em> (Cephalopoda: Octopoda) using stylet increment analysis

Regueira

González

2015

Sci. Mar.

View full text Add to dashboard Cite

Summary: Age and growth of the horned octopus Eledone cirrhosa are estimated for the first time by stylet increment analysis. Specimens were collected between March 2009 and March 2010 from the commercial trawl fishery operating off northwestern Iberian coasts. A pool of stylets representing all size classes were defined by means of modal progression analysis performed separately for each sex in northern and western fishing grounds over a total of 2220 individuals (306 males and 595 females from the northern fishing ground; and 379 males and 940 females from the western fishing ground). In total, 122 stylets belonging to individuals with a total weight ranging from 67 to 950 g were successfully analysed. Age of the specimens was estimated assuming a daily deposition rate of growth increments within the stylet. Estimated age of the specimens varied from 106 to 516 days. Differential longevity between sexes was observed, with females reaching a life span of 17 months while males attained reached only 14 months, although the possibility that this difference might be even greater is discussed. Based on estimated age, hatching date was back-calculated and it was concluded that hatching occurs throughout the year, with a peak in winter. Relative instantaneous growth rates estimated for 90-day age classes, ranged from 0.03% to 2.17% of body weight per day, depending on age. The results obtained are compared with the information available on this species.Keywords: Eledone cirrhosa; stylet increment analysis; age; life span; growth; NW Iberian Peninsula.Determinación de la edad y el crecimiento del pulpo blanco Eledone cirrhosa (Cephalopoda: Octopoda) mediante el análisis de incrementos en el estilete Resumen: La edad y el crecimiento del pulpo blanco Eledone cirrhosa son estimados por primera vez mediante el análisis de incrementos del estilete (SIA). Los especímenes fueron obtenidos, entre marzo de 2009 y marzo de 2010, provenientes de la pesquería de arrastre comercial que opera en la costa noroeste de la Península Ibérica. Un conjunto de estiletes, en representación de todas las clases de tamaño, fue definido mediante un análisis de progresión modal realizado por separado para cada sexo en los caladeros del norte y oeste, sobre un total de 2220 individuos (306 machos y 595 hembras procedentes de la costa norte y 379 machos y 940 hembras de la costa oeste). Un total de 122 estiletes, pertenecientes a especímenes con un peso total de entre 67 y 950 g, fueron analizados con éxito. La edad de los especímenes se calculó asumiendo una tasa de deposición diaria de los incrementos de crecimiento en el estilete. La edad estimada de los especímenes fue de entre 106 y 516 días. Se observó una longevidad diferencial entre sexos; en las hembras se registró una esperanza de vida de hasta 17 meses, mientras que los machos tan sólo alcanzaron 14 meses, aunque se discute la posibilidad de que esta diferencia podría ser aún mayor. En base en la edad estimada se calculó la fecha de eclosión, concluyendo que la eclosión se produce duran...

show abstract

Validation of growth increments in stylets, beaks and lenses as ageing tools in Octopus maya

Cited by 24 publications

References 19 publications

Determination of squid age using upper beak rostrum sections: technique improvement and comparison with the statolith

Determination of squid age using upper beak rostrum sections: technique improvement and comparison with the statolith

Spatial distribution and population structure of fiddler crabs in an Indian Sundarban mangrove

Determination of age and growth of the horned octopus <em>Eledone cirrhosa</em> (Cephalopoda: Octopoda) using stylet increment analysis

Contact Info

Product

Resources

About