Seahorse Development

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Introduction

Hippocampus (Greek, ippos = horse; kampe = curvature)


Actinopterygii (ray-finned fishes) > Syngnathiformes (Pipefishes and seahorses) > Syngnathidae (Pipefishes and seahorses) > Hippocampinae


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Seahorse Development

Some Recent Findings

  • Standardised classification of pre-release development in male-brooding pipefish, seahorses, and seadragons (Family Syngnathidae)[1] "We propose a standardised classification of early syngnathid development that extends from the activation of the egg to the release of newborn. The classification consists of four developmental periods - early embryogenesis, eye development, snout formation, and juvenile - which are further divided into 11 stages. Stages are characterised by morphological traits that are easily visible in live and preserved specimens using incident-light microscopy."

Standardised classification of pre-release development in male-brooding pipefish, seahorses, and seadragons (Family Syngnathidae)

BMC Dev Biol. 2012 Dec 29;12:39. doi: 10.1186/1471-213X-12-39.

Sommer S, Whittington CM, Wilson AB. Source Institute of Evolutionary Biology and Environmental Studies, University of Zürich, Winterthurerstrasse 190, Zürich, CH-8057, Switzerland. stefan.sommer@ieu.uzh.ch.

Abstract

BACKGROUND: Members of the family Syngnathidae share a unique reproductive mode termed male pregnancy. Males carry eggs in specialised brooding structures for several weeks and release free-swimming offspring. Here we describe a systematic investigation of pre-release development in syngnathid fishes, reviewing available data for 17 species distributed across the family. This work is complemented by in-depth examinations of the straight-nosed pipefish Nerophis ophidion, the black-striped pipefish Syngnathus abaster, and the potbellied seahorse Hippocampus abdominalis.

RESULTS: We propose a standardised classification of early syngnathid development that extends from the activation of the egg to the release of newborn. The classification consists of four developmental periods - early embryogenesis, eye development, snout formation, and juvenile - which are further divided into 11 stages. Stages are characterised by morphological traits that are easily visible in live and preserved specimens using incident-light microscopy.

CONCLUSIONS: Our classification is derived from examinations of species representing the full range of brooding-structure complexity found in the Syngnathidae, including tail-brooding as well as trunk-brooding species, which represent independent evolutionary lineages. We chose conspicuous common traits as diagnostic features of stages to allow for rapid and consistent staging of embryos and larvae across the entire family. In view of the growing interest in the biology of the Syngnathidae, we believe that the classification proposed here will prove useful for a wide range of studies on the unique reproductive biology of these male-brooding fish.


Common Name - Seahorse

Country Species
Cuba Hippocampus erectus
Malaysia Hippocampus erectus
Malaysia Hippocampus histrix
Malaysia Hippocampus kuda
Malaysia Hippocampus spinosissimus
Malaysia Hippocampus barbouri
Malaysia Hippocampus comes
Azores Islands Hippocampus histrix
Puerto Rico Hippocampus reidi
St Helena Hippocampus erectus
United Kingdom Hippocampus guttulatus

Table data from Fishbase.[2]

References

  1. Stefan Sommer, Camilla M Whittington, Anthony B Wilson Standardised classification of pre-release development in male-brooding pipefish, seahorses, and seadragons (Family Syngnathidae). BMC Dev. Biol.: 2012, 12;39 PMID: 23273265 | PMC3541971 | BMC Dev Biol.
  2. Froese, R. and D. Pauly. Editors. 2012. FishBase. World Wide Web electronic publication. www.fishbase.org, version (12/2012).

Reviews

Articles

Kai N Stölting, Anthony B Wilson Male pregnancy in seahorses and pipefish: beyond the mammalian model. Bioessays: 2007, 29(9);884-96 PMID: 17691105

A B Wilson, A Vincent, I Ahnesjö, A Meyer Male pregnancy in seahorses and pipefishes (family Syngnathidae): rapid diversification of paternal brood pouch morphology inferred from a molecular phylogeny. J. Hered.: 2001, 92(2);159-66 PMID: 11396574


Search Pubmed

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10 Most Recent

Note - This sub-heading shows an automated computer PubMed search using the listed sub-heading term. References appear in this list based upon the date of the actual page viewing. Therefore the list of references do not reflect any editorial selection of material based on content or relevance. In comparison, references listed on the content page and discussion page (under the publication year sub-headings) do include editorial selection based upon relevance and availability. (More? Pubmed Most Recent)


Syngnathidae Development

Marisa P Sárria, Miguel M Santos, L Filipe C Castro, Natividade M Vieira, Nuno M Monteiro Estrogenic chemical effects are independent from the degree of sex role reversal in pipefish. J. Hazard. Mater.: 2013, 263 Pt 2;746-53 PMID: 24220198 Stefan Sommer, Camilla M Whittington, Anthony B Wilson Standardised classification of pre-release development in male-brooding pipefish, seahorses, and seadragons (Family Syngnathidae). BMC Dev. Biol.: 2012, 12;39 PMID: 23273265 K L Parkinson, D J Booth, J E Lee Validation of otolith daily increment formation for two temperate syngnathid fishes: the pipefishes Stigmatopora argus and Stigmatopora nigra. J. Fish Biol.: 2012, 80(3);698-704 PMID: 22380563 K Kumaravel, S Ravichandran, T Balasubramanian, Leonard Sonneschein Seahorses - a source of traditional medicine. Nat. Prod. Res.: 2012, 26(24);2330-4 PMID: 22360853 S K Scobell, D S Mackenzie Reproductive endocrinology of Syngnathidae. J. Fish Biol.: 2011, 78(6);1662-80 PMID: 21651522


Seahorse Development

Dan Hu, Chun-Qi Wu, Ze-Jun Li, Yue Liu, Xing Fan, Quan-Jun Wang, Ri-Gao Ding Characterizing the mechanism of thiazolidinedione-induced hepatotoxicity: an in vitro model in mitochondria. Toxicol. Appl. Pharmacol.: 2015; PMID: 25727309 Francisco Otero-Ferrer, Marisol Izquierdo, Alireza Fazeli, William V Holt Embryonic developmental plasticity in the long-snouted seahorse (Hippocampus reidi, Ginsburg 1933) in relation to parental preconception diet. Reprod. Fertil. Dev.: 2014; PMID: 25515534

[Hemoglobin system of golden mullet (Liza aurata, Risso) at adaptation to conditions of outer hypoxia]. Zh. Evol. Biokhim. Fiziol.: 2014, 50(1);72-7 PMID: 25486809

Mingyou Li, Haobing Zhao, Jing Wei, Junling Zhang, Yunhan Hong Medaka vasa gene has an exonic enhancer for germline expression. Gene: 2014; PMID: 25447919 Ruolan Wang, Steven J Novick, James B Mangum, Kennedy Queen, David A Ferrick, George W Rogers, Julie B Stimmel The Acute Extracellular Flux (XF) Assay to Assess Compound Effects on Mitochondrial Function. J Biomol Screen: 2014; PMID: 25381255


Pipefish Development

Marisa P Sárria, Miguel M Santos, L Filipe C Castro, Natividade M Vieira, Nuno M Monteiro Estrogenic chemical effects are independent from the degree of sex role reversal in pipefish. J. Hazard. Mater.: 2013, 263 Pt 2;746-53 PMID: 24220198 Stefan Sommer, Camilla M Whittington, Anthony B Wilson Standardised classification of pre-release development in male-brooding pipefish, seahorses, and seadragons (Family Syngnathidae). BMC Dev. Biol.: 2012, 12;39 PMID: 23273265 Olivia Roth, Verena Klein, Anne Beemelmanns, Jörn P Scharsack, Thorsten B H Reusch Male pregnancy and biparental immune priming. Am. Nat.: 2012, 180(6);802-14 PMID: 23149404 K L Parkinson, D J Booth, J E Lee Validation of otolith daily increment formation for two temperate syngnathid fishes: the pipefishes Stigmatopora argus and Stigmatopora nigra. J. Fish Biol.: 2012, 80(3);698-704 PMID: 22380563 C Kvarnemo, K B Mobley, C Partridge, A G Jones, I Ahnesjö Evidence of paternal nutrient provisioning to embryos in broad-nosed pipefish Syngnathus typhle. J. Fish Biol.: 2011, 78(6);1725-37 PMID: 21651524


Seadragon Development


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Cite this page: Hill, M.A. (2015) Embryology Seahorse Development. Retrieved March 27, 2015, from https://embryology.med.unsw.edu.au/embryology/index.php/Seahorse_Development

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© Dr Mark Hill 2015, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G