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1000 Titel
  • Seasonal growth differences of larval Hyporhamphus picarti (Hemiramphidae) in the Sine Saloum estuary, Senegal
1000 Autor/in
  1. Lilkendey, Julian |
  2. Neumann, S.I. |
  3. Sloterdijk, Hans |
  4. Ekau, Werner |
1000 Erscheinungsjahr 2017
1000 LeibnizOpen
1000 Publikationstyp
  1. Artikel |
1000 Online veröffentlicht
  • 2017-11-02
1000 Erschienen in
1000 Quellenangabe
  • 34(1):97-102
1000 FRL-Sammlung
1000 Copyrightjahr
  • 2017
1000 Lizenz
1000 Verlagsversion
  • https://doi.org/10.1111/jai.13528 |
1000 Publikationsstatus
1000 Begutachtungsstatus
1000 Sprache der Publikation
1000 Abstract/Summary
  • The African halfbeak Hyporhamphus picarti (Hemiramphidae) is one of the most abundant species within the ichthyoplankton community of the Sine Saloum estuary (Senegal). A year‐round occurrence of larvae suggests that the Sine Saloum is an important spawning habitat for this species. Annual fluctuations in water temperature, however, can have severe impacts on the survival probabilities of marine fish larvae. To determine whether temperature has an effect on the growth of H. picarti during its larval development, larval age at length and somatic growth rates were investigated for two contrasting spawning seasons in 2014: February (cold season, 20.8°C) and June (warm season, 26.4°C). In both months H. picarti larvae were sampled at the mouth of the Saloum River using neuston nets. Sagittal otoliths’ increments were counted to estimate the larva age at a given standard length (SL). The age of larvae ranged between 2 and 22 days, with SL of 3.86–21.68 mm, respectively. In order to describe larval age at length during the contrasting spawning seasons, two distinctive Gompertz functions were applied. Accordingly, specimens sampled in June (0.94 ± 0.17 mm per day) exhibited significantly higher somatic growth rates than those sampled in February (0.60 ± 0.06 mm per day). These findings suggest that water temperature is an important factor influencing larval growth in H. picarti. Information concerning the early life stages of H. picarti are scarce and the results of the present study may contribute to a better understanding of the species’ biology and ecology.
1000 Sacherschließung
lokal larvae
lokal age and growth estimation
lokal temperature
lokal halfbeak
lokal Sine Saloum estuary
1000 Fächerklassifikation (DDC)
1000 Liste der Beteiligten
  1. https://orcid.org/0000-0003-3165-1079|https://frl.publisso.de/adhoc/uri/TmV1bWFubiwgUy5JLg==|https://orcid.org/0000-0002-8243-2100|https://frl.publisso.de/adhoc/uri/RWthdSwgV2VybmVy
1000 Label
1000 Förderer
  1. Bundesministerium für Bildung und Forschung |
1000 Fördernummer
  1. 01DG12073B
1000 Förderprogramm
  1. -
1000 Dateien
1000 Förderung
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    1000 Förderer Bundesministerium für Bildung und Forschung |
    1000 Förderprogramm -
    1000 Fördernummer 01DG12073B
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1000 @id frl:6417695.rdf
1000 Erstellt am 2019-11-25T11:17:23.695+0100
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1000 Oai Id
  1. oai:frl.publisso.de:frl:6417695 |
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