Observations on feeding, copulation and spawning of the ascoglossan opisthobranch calliopaea oophaga lemche

Research output: Contribution to journal › Journal article › Research › peer-review

Standard

Observations on feeding, copulation and spawning of the ascoglossan opisthobranch calliopaea oophaga lemche. / Jensen, Kathe R.

In: Ophelia, Vol. 25, No. 2, 07.1986, p. 97-106.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Jensen, KR 1986, 'Observations on feeding, copulation and spawning of the ascoglossan opisthobranch calliopaea oophaga lemche', Ophelia, vol. 25, no. 2, pp. 97-106. https://doi.org/10.1080/00785326.1986.10429717

APA

Jensen, K. R. (1986). Observations on feeding, copulation and spawning of the ascoglossan opisthobranch calliopaea oophaga lemche. Ophelia, 25(2), 97-106. https://doi.org/10.1080/00785326.1986.10429717

Vancouver

Jensen KR. Observations on feeding, copulation and spawning of the ascoglossan opisthobranch calliopaea oophaga lemche. Ophelia. 1986 Jul;25(2):97-106. https://doi.org/10.1080/00785326.1986.10429717

Author

Jensen, Kathe R. / Observations on feeding, copulation and spawning of the ascoglossan opisthobranch calliopaea oophaga lemche. In: Ophelia. 1986 ; Vol. 25, No. 2. pp. 97-106.

Bibtex

@article{e6c8e3a4d35443d4ac19bbecfb0d780a,
title = "Observations on feeding, copulation and spawning of the ascoglossan opisthobranch calliopaea oophaga lemche",
abstract = "Calliopaea oophaga feeds on the eggs of other opisthobranchs. It pushes its head through the mucus coating of the food egg mass, dragging the remaining part of the body inside by muscular contractions. During feeding the head is {\textquoteleft}inflated{\textquoteright} by displacement of hemolymph, causing the eyes to appear mediodorsal as in the genus Costasiella. C. oophaga forms courtship groups, but usually only two animals in a group are in the act of copulation at any one time. C. oophaga has an extremely long, thin penial style, which is waved about vigorously before being inserted through the vaginal opening of the partner. During spawning the distal part of the oviduct swells up. The eggs are irregularly shaped at the time they leave the oviducal opening, but assume their regular spherical shape shortly after. The egg capsules are almost spherical and contain an opaque {\textquoteleft}albumen{\textquoteright}, which turns clear before the first cleavage. The eggs are arranged in a loosely coiled helix inside the often regularly spirally coiled egg mass. The taxonomic position and familial affiliations of C. oophaga are discussed.",
author = "Jensen, {Kathe R.}",
year = "1986",
month = jul,
doi = "10.1080/00785326.1986.10429717",
language = "English",
volume = "25",
pages = "97--106",
journal = "Ophelia",
issn = "0078-5326",
publisher = "Apollo Booksellers",
number = "2",

}

RIS

TY - JOUR

T1 - Observations on feeding, copulation and spawning of the ascoglossan opisthobranch calliopaea oophaga lemche

AU - Jensen, Kathe R.

PY - 1986/7

Y1 - 1986/7

N2 - Calliopaea oophaga feeds on the eggs of other opisthobranchs. It pushes its head through the mucus coating of the food egg mass, dragging the remaining part of the body inside by muscular contractions. During feeding the head is ‘inflated’ by displacement of hemolymph, causing the eyes to appear mediodorsal as in the genus Costasiella. C. oophaga forms courtship groups, but usually only two animals in a group are in the act of copulation at any one time. C. oophaga has an extremely long, thin penial style, which is waved about vigorously before being inserted through the vaginal opening of the partner. During spawning the distal part of the oviduct swells up. The eggs are irregularly shaped at the time they leave the oviducal opening, but assume their regular spherical shape shortly after. The egg capsules are almost spherical and contain an opaque ‘albumen’, which turns clear before the first cleavage. The eggs are arranged in a loosely coiled helix inside the often regularly spirally coiled egg mass. The taxonomic position and familial affiliations of C. oophaga are discussed.

AB - Calliopaea oophaga feeds on the eggs of other opisthobranchs. It pushes its head through the mucus coating of the food egg mass, dragging the remaining part of the body inside by muscular contractions. During feeding the head is ‘inflated’ by displacement of hemolymph, causing the eyes to appear mediodorsal as in the genus Costasiella. C. oophaga forms courtship groups, but usually only two animals in a group are in the act of copulation at any one time. C. oophaga has an extremely long, thin penial style, which is waved about vigorously before being inserted through the vaginal opening of the partner. During spawning the distal part of the oviduct swells up. The eggs are irregularly shaped at the time they leave the oviducal opening, but assume their regular spherical shape shortly after. The egg capsules are almost spherical and contain an opaque ‘albumen’, which turns clear before the first cleavage. The eggs are arranged in a loosely coiled helix inside the often regularly spirally coiled egg mass. The taxonomic position and familial affiliations of C. oophaga are discussed.

UR - http://www.scopus.com/inward/record.url?scp=0344557428&partnerID=8YFLogxK

U2 - 10.1080/00785326.1986.10429717

DO - 10.1080/00785326.1986.10429717

M3 - Journal article

AN - SCOPUS:0344557428

VL - 25

SP - 97

EP - 106

JO - Ophelia

JF - Ophelia

SN - 0078-5326

IS - 2

ER -

ID: 346072255