About: FIRST REPORT OF INTERSEX IN THE SIGNAL CRAYFISH PACIFASTACUS LENIUSCULUS (DANA, 1852)

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About: FIRST REPORT OF INTERSEX IN THE SIGNAL CRAYFISH PACIFASTACUS LENIUSCULUS (DANA, 1852) Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://booksandjournals.brillonline.com/content/journals/10.1163/15685403-00003370
Description	The reproductive strategies of species of non-indigenous crayfish make an important issue in astacological research. Although crayfish reproduction has been well studied, there is little information available on the occurrence of intersexuality. We report the first evidence of intersex in the signal crayfish, Pacifastacus leniusculus (Dana, 1852). An intersexual specimen was found among five tested signal crayfish. Morphology revealed both male and female genital openings, as well as male gonopods. The specimen superficially appeared male but contained both testes and ovaries, with an atypical dispersed structure. Sperm was obtained from this crayfish. Histology showed both spermatocytes and oocytes. The gonadosomatic index (GSI = 3.79) was considered as a morphometric parameter of the intersexual crayfish. The ova present in the intersex male raised its GSI to the three-fold of that of normal males. The reproductive strategies of species of non-indigenous crayfish make an important issue in astacological research. Although crayfish reproduction has been well studied, there is little information available on the occurrence of intersexuality. We report the first evidence of intersex in the signal crayfish, Pacifastacus leniusculus (Dana, 1852). An intersexual specimen was found among five tested signal crayfish. Morphology revealed both male and female genital openings, as well as male gonopods. The specimen superficially appeared male but contained both testes and ovaries, with an atypical dispersed structure. Sperm was obtained from this crayfish. Histology showed both spermatocytes and oocytes. The gonadosomatic index (GSI = 3.79) was considered as a morphometric parameter of the intersexual crayfish. The ova present in the intersex male raised its GSI to the three-fold of that of normal males. (en)
Title	FIRST REPORT OF INTERSEX IN THE SIGNAL CRAYFISH PACIFASTACUS LENIUSCULUS (DANA, 1852) FIRST REPORT OF INTERSEX IN THE SIGNAL CRAYFISH PACIFASTACUS LENIUSCULUS (DANA, 1852) (en)
skos:prefLabel	FIRST REPORT OF INTERSEX IN THE SIGNAL CRAYFISH PACIFASTACUS LENIUSCULUS (DANA, 1852) FIRST REPORT OF INTERSEX IN THE SIGNAL CRAYFISH PACIFASTACUS LENIUSCULUS (DANA, 1852) (en)
skos:notation	RIV/60076658:12520/14:43886914!RIV15-GA0-12520___
http://linked.open...avai/riv/aktivita	P S
http://linked.open...avai/riv/aktivity	P(ED2.1.00/01.0024), P(GAP505/12/0545), P(GPP502/12/P177), S
http://linked.open...iv/cisloPeriodika	13
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Kozák, Pavel Yazicioglu, Buket Niksirat Hashjin, Hamid Linhartová, Zuzana
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Jihočeská univerzita v Českých Budějovicích / Fakulta rybářství a ochrany vod
http://linked.open...dnocenehoVysledku	16964
http://linked.open...ai/riv/idVysledku	RIV/60076658:12520/14:43886914
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	sexuality; crustacea; spermatozoa; ultrastructure; parastacidae; 1882 decapoda; cherax-quadricarinatus; burrowing crayfish; red claw crayfish; partial protandric hermaphroditism (en)
http://linked.open.../riv/klicoveSlovo	ultrastructure crustacea sexuality spermatozoa 1882 decapoda burrowing crayfish cherax-quadricarinatus parastacidae partial protandric hermaphroditism red claw crayfish
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[35E5C865C362]
http://linked.open...i/riv/nazevZdroje	Crustaceana
http://linked.open...in/vavai/riv/obor	EG
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Diversity of native and invasive crayfish in Central Europe: from population genetic structure and reproductive modes to conservation and systematics South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses Basic biology of crayfish sperm with emphasis on the molecular and morphological modifications during capacitation and acrosome reaction
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	87
http://linked.open...iv/tvurceVysledku	Kozák, Pavel Niksirat Hashjin, Hamid Linhartová, Zuzana Yazicioglu, Buket
http://linked.open...ain/vavai/riv/wos	000345494400005
issn	0011-216X
number of pages	8 (xsd:int)
http://bibframe.org/vocab/doi	10.1163/15685403-00003370
http://localhost/t...ganizacniJednotka	12520

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