Spermatophore implantation in Rossia moelleri Steenstrup, 1856 (Sepiolidae; Cephalopoda)

Hoving, Henk-Jan T.; Nauwelaerts, Sandra; Genne, B. van; Stamhuis, Eize; Zumholz, Karsten

doi:10.1016/j.jembe.2009.02.008

Cited by 27 publications

(52 citation statements)

References 17 publications

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“…The spermatophoric reaction is a phenomenon driven by the contraction of the spermatophore elastic tunics and by the hydrostatic pressure caused by the uptake of water through osmotic processes (Drew 1919;Austin et al 1964;Mann 1984). In decapod cephalopod species in general, this reaction is known to be fast (Drew 1919;Austin et al 1964;Mann 1984;Takahama et al 1991;Hoving et al 2009), which is confirmed in the Carol bobtail squid (30-90 s) from our results.…”

Section: Discussionsupporting

confidence: 82%

“…At present, there is no evidence that N. caroli transfer inverting spermatophores by the hectocotyli; however, this has been observed, recently, in Sepietta oweniana (Cuccu et al 2010). The fact that no spermatangia and only inverted spermatophores were obtained in this study by submerging the spermatophores in seawater may indicate that organic fluids or tissue contact is needed to complete the process; according to Hoving et al (2009); sufficiently long and proper contact with the female tissue seems an important factor to ensure implantation. Implanting spermatangia in the female body is known to be an efficient way to allow sperm storage, due to the lack of a functional bursa copulatrix or seminal receptacle (Nesis 1995).…”

Section: Discussioncontrasting

confidence: 56%

“…In a natural situation, the hectocotylus of N. caroli probably removes spermatophores from the Needham's sac to transfer them to the female. It is possible that the spermatophoric reaction initiates when the spermatophores are removed from the Needham's sac by the hectocotylus which transfers inverting spermatophores on the female's body, as suggested for R. moelleri by Hoving et al (2009). At present, there is no evidence that N. caroli transfer inverting spermatophores by the hectocotyli; however, this has been observed, recently, in Sepietta oweniana (Cuccu et al 2010).…”

Section: Discussionmentioning

confidence: 91%

“…Several sperm reservoirs (spermatangia) were found embedded in the mantle of mated females (Cuccu et al 2007). While the implantation of spermatangia is a common sperm transfer strategy (Nesis 1995), the mechanism responsible for spermatangia implantation, recently investigated in Rossia moelleri (Hoving et al 2009), is not yet fully understood. The aim of the research reported here is to improve our knowledge of the reproductive biology of N. caroli of the southern Sardinian waters, focusing on the male reproductive system.…”

Section: Introductionmentioning

confidence: 99%

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Male reproductive system inNeorossia caroli(Joubin 1902) (Cephalopoda: Sepiolidae) from Sardinian waters (western Mediterranean Sea) with particular reference to sexual products

Cuccu¹,

Mereu²,

Masala³

et al. 2011

Invertebrate Reproduction & Development

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The male reproductive system of the bobtail squid Neorossia caroli (Cephalopoda: Sepiolidae) is described in detail, based on observations of 90 mature males caught from 500 to 1600 m depth in Sardinian waters (western Mediterranean Sea). Reproductive organs in mature specimens accounted for up to 6% of total body weight. Of this, 70% was represented by the spermatophoric complex. Up to 83 spermatophores were found inside the Needham's sac. Mean spermatophore length was 16.7 mm. Sperm mass, cement body, and ejaculatory apparatus represented 63.2%, 13.1%, and 23.7% of the total spermatophore length, respectively. Inverted spermatophores, empty spermatophore sheaths, and spermatangia were also found in the sac, and their presence is discussed. Spermatangia implanted in several parts of the bodies of males (e.g., head, funnel, and eyes) were recorded and their occurrence is discussed. The spermatophoric reaction was induced in the laboratory by submerging spermatophores in seawater, and it is described briefly.

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Section: Discussionsupporting

confidence: 82%

Section: Discussioncontrasting

confidence: 56%

Section: Discussionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Male reproductive system inNeorossia caroli(Joubin 1902) (Cephalopoda: Sepiolidae) from Sardinian waters (western Mediterranean Sea) with particular reference to sexual products

Cuccu¹,

Mereu²,

Masala³

et al. 2011

Invertebrate Reproduction & Development

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“…Different numbers of spermatangia can be observed in subfamily Rossinae species, such as Rossia molleri 6-21 (Hoving et al, 2009);Semirossia.patagonica 2-19 (Önsoy et al, 2008); Neorossia caroli 1-30 (Salman, 2011), which do not contain bursa copulatrix. .…”

Section: Discussionmentioning

confidence: 99%

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Salman¹

2014

Turk. J. Fish. Aquat. Sci.

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A total of 111 Sepiola intermedia specimens were collected from the Aegean Sea at seasonally between 2007 and 2008. The maturity stages of both sexes and the gonadosomatic index values were estimated. It was observed that the ovulation pattern of S. intermedia is asynchronous and spawning occurs continuously. Potential fecundity ranges for females and males were determined to be between 148-406 eggs (mean 271) and 54-383 spermatophores (mean 197), respectively. The females with mantle lengths ML between 14-22 mm obtained 68 to 161 spermantangia (mean 96) ranging from 0.3-0.9 mm in length throughout the season inside their bursa copulatrix. The mantle lengths of mature females varied from 15 to 22 mm ML, those of mature males -between 15 and 23 mm ML. This study provides new records on the reproductive biology of S. intermedia. Gonadlardaki yumurtaların olgunluk durumlarına göre gonadın gelişimi asenkronik gonad tipinde olup yumurtlamanın her seferinde az miktarlarda ve uzun bir periyot içinde gerçekleştiği düşünülmektedir.Üreme potansiyeli dişi bireylerde 148-406 yumurta (ortalama 271), erkek bireylerde ise 54-383 spermatofor (ortalama 197) olarak tespit edilmiştir. 14-22 mm manto boyu arasındaki dişi bireylerin bursa kopulatrikslerinde 68-161 (ortalama 96) arasında spermatangiaya rastlanmıştır. Tespit edilen bu spermatangiaların boyları 0.3-0.9 mm arasında olup, tüm mevsimlerde gözlenmiştir. Bu çalışma S. intermedia'nın üreme biyolojisi için yeni katkılar içermektedir.Anahtar Kelimeler: Sepiola intermedia, üreme biyolojisi, histoloji, Ege Denizi, Akdeniz.

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Spermatophoric reaction reappraised: Novel insights into the functioning of the loliginid spermatophore based on Doryteuthis plei (Mollusca: Cephalopoda)

Marian

2011

Journal of Morphology

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During copulation, spermatophores produced by male coleoid cephalopods undergo the spermatophoric reaction, a complex process of evagination that culminates in the attachment of the spermatangium (everted spermatophore containing the sperm mass) on the female's body. To better understand this complicated phenomenon, the present study investigated the functional morphology of the spermatophore of the squid Doryteuthis plei applying in vitro analysis of the reaction, as well as light and electron microscopy investigation of spermatangia obtained either in vitro, or naturally attached on females. Hitherto unnoticed functional features of the loliginid spermatophore require a reappraisal of some important processes involved in the spermatophoric reaction. The most striking findings concern the attachment mechanism, which is not carried out solely by cement adhesive material, as previously believed, but rather by an autonomous, complex process performed by multiple structures during the spermatophoric reaction. During evagination, the ejaculatory apparatus provides anchorage on the targeted tissue, presumably due to the minute stellate particles present in the exposed spiral filament. Consequently, the ejaculatory apparatus maintains the attachment of the tip of the evaginating spermatophore until the cement body is extruded. Subsequently, the cement body passes through a complex structural rearrangement, which leads to the injection of both its viscid contents and pointed oral region onto the targeted tissue. The inner membrane at the oral region of the cement body contains numerous stellate particles attached at its inner side; eversion of this membrane exposes these sharp structures, which presumably adhere to the tissue and augment attachment. Several naturally attached spermatangia were found with their bases implanted at the deposition sites, and the possible mechanisms of perforation are discussed based on present evidence. The function of the complex squid spermatophore and its spermatophoric reaction is revisited in light of these findings. J. Morphol. 2012. © 2011 Wiley Periodicals, Inc.

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Spermatophore implantation in Rossia moelleri Steenstrup, 1856 (Sepiolidae; Cephalopoda)

Cited by 27 publications

References 17 publications

Male reproductive system inNeorossia caroli(Joubin 1902) (Cephalopoda: Sepiolidae) from Sardinian waters (western Mediterranean Sea) with particular reference to sexual products

Male reproductive system inNeorossia caroli(Joubin 1902) (Cephalopoda: Sepiolidae) from Sardinian waters (western Mediterranean Sea) with particular reference to sexual products

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Spermatophoric reaction reappraised: Novel insights into the functioning of the loliginid spermatophore based on Doryteuthis plei (Mollusca: Cephalopoda)

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