The relationship between mating system and simultaneous hermaphroditism in the coral reef fish, Hypoplectrus nigricans (Serranidae)
Identifieur interne : 000A36 ( Main/Exploration ); précédent : 000A35; suivant : 000A37The relationship between mating system and simultaneous hermaphroditism in the coral reef fish, Hypoplectrus nigricans (Serranidae)
Auteurs : Eric A. Fischer [États-Unis]Source :
- Animal Behaviour [ 0003-3472 ] ; 1980.
Abstract
Abstract: The behaviour and reproductive ecology of the simultaneously hermaphroditic coral reef fish, Hypoplectrus nigricans (Serranidae), the black hamlet, was investigated in an effort to elucidate the relationship between simultaneous hermaphroditism and mating behaviour. The major features of the mating system are as follows. (1) Hamlets spawn only in pairs, one partner releasing eggs and the other fertilizing them. There is no selfing. (2) Eggs are planktonic. There is no parental care. (3) The major courtship display serves to advertise that an individual has ripe eggs. (4) A clutch is not released in a single spawn but is parcelled over several, usually with the same partner. (5) Partners generally alternate sex roles with each spawn: that is, they take turns giving up parcels to be fertilized. This active reciprocation of release of eggs, called egg trading, means that reproductive success as a male depends upon the ability to reproduce as a female. Since most of the reproductive effort of an individual is spent on female functions, egg trading provides a fecundity advantage to hermaphroditism, making it evolutionarily stable relative to dioecy (separate sexes). The advantage is analogous to that which parthenogenetic organisms have over sexual ones. The fecundity advantage under egg trading can account for the maintenance, but not the origin of simultaneous hermaphroditism, since hermaphroditism must be established before egg trading can evolve.
Url:
DOI: 10.1016/S0003-3472(80)80070-4
Affiliations:
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Fischer</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:614DFDED23EA0D6AC245C4C47F2DB3BA1EB2D579</idno><date when="1980" year="1980">1980</date><idno type="doi">10.1016/S0003-3472(80)80070-4</idno><idno type="url">https://api.istex.fr/document/614DFDED23EA0D6AC245C4C47F2DB3BA1EB2D579/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">000660</idno><idno type="wicri:Area/Istex/Curation">000660</idno><idno type="wicri:Area/Istex/Checkpoint">000711</idno><idno type="wicri:doubleKey">0003-3472:1980:Fischer E:the:relationship:between</idno><idno type="wicri:Area/Main/Merge">000A63</idno><idno type="wicri:Area/Main/Curation">000A36</idno><idno type="wicri:Area/Main/Exploration">000A36</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">The relationship between mating system and simultaneous hermaphroditism in the coral reef fish, Hypoplectrus nigricans (Serranidae)</title><author><name sortKey="Fischer, Eric A" sort="Fischer, Eric A" uniqKey="Fischer E" first="Eric A." last="Fischer">Eric A. Fischer</name><affiliation wicri:level="3"><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Zoology, University of California, Berkeley</wicri:regionArea><placeName><settlement type="city">Berkeley (Californie)</settlement><region type="state">Californie</region></placeName></affiliation><affiliation wicri:level="2"><country xml:lang="fr">États-Unis</country><placeName><region type="state">Californie</region></placeName><wicri:cityArea>Museum of Vertebrate Zoology, University of California, Berkeley</wicri:cityArea></affiliation><affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">Animal Behaviour</title><title level="j" type="abbrev">YANBE</title><idno type="ISSN">0003-3472</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1980">1980</date><biblScope unit="volume">28</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="620">620</biblScope><biblScope unit="page" to="633">633</biblScope></imprint><idno type="ISSN">0003-3472</idno></series><idno type="istex">614DFDED23EA0D6AC245C4C47F2DB3BA1EB2D579</idno><idno type="DOI">10.1016/S0003-3472(80)80070-4</idno><idno type="PII">S0003-3472(80)80070-4</idno><idno type="ArticleID">80800704</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0003-3472</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: The behaviour and reproductive ecology of the simultaneously hermaphroditic coral reef fish, Hypoplectrus nigricans (Serranidae), the black hamlet, was investigated in an effort to elucidate the relationship between simultaneous hermaphroditism and mating behaviour. The major features of the mating system are as follows. (1) Hamlets spawn only in pairs, one partner releasing eggs and the other fertilizing them. There is no selfing. (2) Eggs are planktonic. There is no parental care. (3) The major courtship display serves to advertise that an individual has ripe eggs. (4) A clutch is not released in a single spawn but is parcelled over several, usually with the same partner. (5) Partners generally alternate sex roles with each spawn: that is, they take turns giving up parcels to be fertilized. This active reciprocation of release of eggs, called egg trading, means that reproductive success as a male depends upon the ability to reproduce as a female. Since most of the reproductive effort of an individual is spent on female functions, egg trading provides a fecundity advantage to hermaphroditism, making it evolutionarily stable relative to dioecy (separate sexes). The advantage is analogous to that which parthenogenetic organisms have over sexual ones. The fecundity advantage under egg trading can account for the maintenance, but not the origin of simultaneous hermaphroditism, since hermaphroditism must be established before egg trading can evolve.</div></front></TEI><affiliations><list><country><li>États-Unis</li></country><region><li>Californie</li></region><settlement><li>Berkeley (Californie)</li></settlement></list><tree><country name="États-Unis"><region name="Californie"><name sortKey="Fischer, Eric A" sort="Fischer, Eric A" uniqKey="Fischer E" first="Eric A." last="Fischer">Eric A. Fischer</name></region><name sortKey="Fischer, Eric A" sort="Fischer, Eric A" uniqKey="Fischer E" first="Eric A." last="Fischer">Eric A. Fischer</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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