Reproductive Anatomy of Chondrichthyans: Notes on Specimen Handling and Sperm Extraction. II. Sharks and Chimaeras.

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  • Additional Information
    • Source:
      Publisher: Molecular Diversity Preservation International Country of Publication: Switzerland NLM ID: 101635614 Publication Model: Electronic Cited Medium: Print ISSN: 2076-2615 (Print) Linking ISSN: 20762615 NLM ISO Abbreviation: Animals (Basel) Subsets: PubMed not MEDLINE
    • Publication Information:
      Original Publication: Basel, Switzerland : Molecular Diversity Preservation International, 2011-
    • Abstract:
      The chondrichthyan fishes, which comprise sharks, rays, and chimaeras, are one of the most threatened groups of vertebrates on the planet. Given this situation, an additional strategy for the protection of these species could be the ex situ conservation projects developed in public aquaria and research centers. Nevertheless, to increase sustainability and to develop properly in situ reintroduction strategies, captive breeding techniques, such as sperm extraction and artificial insemination, should be developed. These techniques are commonly used in other threatened species and could be also used in chondrichthyans. However, the different reproductive morphologies found in this group can complicate both processes. Therefore, a comparison of the reproductive anatomy of eight distinct chondrichthyans, with an emphasis on those important differences when performing sperm extraction or artificial insemination, is carried out herein. Sharks and chimaeras belonging to the Scyliorhinidae, Carcharhinidae, Centrophoridae, Etmopteridae, Hexanchidae, and Chimaeridae families were obtained from commercial fisheries, public aquaria, and stranding events. In addition, the process of obtaining viable sperm samples through cannulation, abdominal massage, and oviducal gland extraction is described in detail for both living and dead animals.
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    • Grant Information:
      PRCV00683 Fundación Biodiversidad; ACIF/2018/147 Generalitat Valenciana; IJCI-2017-34200 Ministerio de Ciencia, Innovación y Universidades
    • Contributed Indexing:
      Keywords: aquarium; artificial insemination; ex situ conservation; fish reproduction; reproductive assisted techniques
    • Publication Date:
      Date Created: 20210827 Latest Revision: 20210830
    • Publication Date:
      20240104
    • Accession Number:
      PMC8388383
    • Accession Number:
      10.3390/ani11082191
    • Accession Number:
      34438648