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Synonyms:
   Carcharhinus falciformis (silky shark) 
   Sphyrna tiburo (Bonnet hammerhead) 
   Squalus tiburo 

Broader Terms:
   Carcharhiniformes (ground sharks) 
   Sphyrna (bonnethead sharks) 
   Squalus (spurdogs) 

More Specific:
   Sphyrna tiburo tiburo 
   Sphyrna tiburo vespertina 
 
 
Latest Articles on Sphyrna tiburo from uBioRSS


External Resources:

Common Names: Requin-marteau tiburo, Cornuda tiburo, Cornuda de corona, Bonnethead shark, kleiner Hammerhai, Cação-martelo, Sarda cachona, Peixe-martelo, bonnethead, Cornudo de corona, Pez martillo, shovelhead, Bonnet shark, Cabeza de pala, Panapana, Martelo, Tiburón bonete del Pacífico, Bonnet hammerhead, Cachona, Chapéu-armado, Uchiwa-shumokuzame, Bonnetnose shark, Lopatoglów, Pata, Cazón cabeza de pala ....



1.  Genomics versus mtDNA for resolving stock structure in the silky shark (Carcharhinus falciformis).LinkIT
Kraft DW, Conklin EE, Barba EW, Hutchinson M, Toonen RJ, Forsman ZH, Bowen BW
PeerJ, 2020
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0

2.  Reproductive cycle and fecundity of the bonnethead Sphyrna tiburo L. from the northwest Atlantic Ocean.LinkIT
Gonzalez De Acevedo M, Frazier BS, Belcher C, Gelsleichter J
Journal of fish biology J Fish Biol Reproductive cycle and fecundity of the bonnethead Sphyrna tiburo L. from the northwest Atlantic Ocean. 10.1111/jfb.14537 The present study examined temporal changes in plasma sex hormone concentrations and the morphology and histology of reproductive organs in mature northwest Atlantic (NWA) bonnetheads Sphyrna tiburo L. to characterize reproductive cycle, breeding periodicity and fertility in this still poorly studied population. Progressive increases in testis width, epididymis head width, plasma testosterone (T) concentrations, and occurrence of mature spermatozoa were observed in male S. tiburo from June to September, demonstrating that spermatogenesis occurs during the summer. Nonetheless, increases in maximum follicle diameter, oviducal gland width, plasma 17?-estradiol and T concentrations, and occurrence of vitellogenic follicles were not observed in mature females until between October and April, demonstrating non-synchronous patterns of gametogenesis in males and females. Fresh copulatory wounds were observed in females collected during late September along with histological evidence for sperm presence in the oviducal gland between September and April, confirming a 6- to 7 month period of female sperm storage. Ovulation occurred between mid-April and early May in concert with increases in female plasma progesterone concentrations. Gestation occurred during a 4.5- to 5 month period between May and early September, and 97% of mature females collected during this period were gravid, indicating a highly synchronized, annual reproductive periodicity. Brood size was significantly correlated with maternal size and ranged from 1 to 13 pups with a mean?±?S.D. of 8.1?±?2.2, which was significantly lower than reported in Gulf of Mexico (GOM) populations. The occurrence of non-fertile offspring was observed in 17% of broods with a range of 1-7 non-fertile eggs present in individual females. Thus, as previously reported in GOM S. tiburo, this unusual form of infertility also appears to be prevalent in the NWA population and requires further study. This study has demonstrated meaningful differences in reproductive biology of these populations, emphasizing the need for region-specific approaches for population management. © 2020 Fisheries Society of the British Isles. Gonzalez De Acevedo Melissa M University of North Florida, Jacksonville, Florida, USA. Frazier Bryan S BS South Carolina Department of Natural Resources, Charleston, South Carolina, USA. Belcher Carolyn C Coastal Resources Division, Georgia Department of Natural Resources, Brunswick, Georgia, USA. Gelsleichter James J https://orcid.org/0000-0003-4716-518X University of North Florida, Jacksonville, Florida, USA. eng NA12NMF4540080 National Marine Fisheries Service, National Oceanic and Atmospheric Administration The Cooperative Atlantic States Shark Pupping and Nursery Habitat Survey (COASTSPAN), the Southeast Area Monitoring and Assessment Program (SEAMAP) and National Marine Fisheries Service (NMFS) Journal Article 2020 09 11 England J Fish Biol 0214055 0022-1112 IM Sphyrna tiburo bonnethead fecundity shark reproduction sperm storage 2020 05 28 2020 09 01 2020 09 08 2020 9 12 6 0 2020 9 12 6 0 2020 9 11 5 48 aheadofprint 32914448 10.1111/jfb.14537 REFERENCES, 2020</i></font><br><font color=#008000>http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0<br></font></span><br>3.  <a href=http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0 class=title>Species composition of the largest shark fin retail-market in mainland China.</a><a href=http://ubio.org/tools/linkit.php?map%5B%5D=all&link_type=2&url=http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0><img src=linkit.png border=0 title='LinkIT' alt='LinkIT'></a> <br><span class=j>Cardeñosa D, Fields AT, Babcock EA, Shea SKH, Feldheim KA, Chapman DD<br><font color=gray><i>Scientific reports, 2020</i></font><br><font color=#008000>http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0<br></font></span><br>4.  <a href=http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0 class=title>Temporal and latitudinal comparisons of reproductive parameters in a heavily exploited shark, the bonnethead, <b>Sphyrna tiburo</b> (L. 1758), in the southern Gulf of Mexico.</a><a href=http://ubio.org/tools/linkit.php?map%5B%5D=all&link_type=2&url=http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0><img src=linkit.png border=0 title='LinkIT' alt='LinkIT'></a> <br><span class=j>Palacios-Hernández D, Castillo-Géniz JL, Méndez-Loeza I, Pérez-Jiménez JC<br><font color=gray><i>Journal of fish biology J Fish Biol Temporal and latitudinal comparisons of reproductive parameters in a heavily exploited shark, the bonnethead, Sphyrna tiburo (L. 1758), in the southern Gulf of Mexico. 100-112 10.1111/jfb.14330 In the southern Gulf of Mexico, the bonnethead shark, Sphyrna tiburo, is one of the most frequently captured species in landings of small-scale fisheries. Based on the analysis of two fishery-dependent sampling periods (1993-1994 and 2007-2014), this study aimed to determine reproductive parameters and identify temporal differences between the two time periods. In the first sampling period, 776 males and 352 females with a size range of 28.0-120.0 cm total stretched length (LT ) were analysed, and in the second sampling period, 387 males and 432 females with a size range of 28.0-122.0 cm LT were analysed. The size at 50% maturity in the second sampling period was significantly different between sexes, 82.6 cm LT for females and 73.8 cm LT for males (no estimation was possible for the first sampling period). The size at 50% maternity was not different between sampling periods, 97.3 cm LT for the first sampling period and 99.0 cm LT for the second sampling period. Litter size varied from 3 to 19 embryos and the average was not statistically different in both periods, 10.1 (S.D. = 3.8) for the first sampling period and 11.3 (S.D. = 3.5) for the second sampling period. The female reproductive cycle is asynchronous, and it seems to be annual, with a gestation period of 5-6 months, and a consecutive ovarian cycle and gestation period. Temporal (between sampling periods) and latitudinal (southern Gulf versus northern regions) variations occur in the synchronicity of the reproductive cycle, temporal variation in the relationship between maternal length and litter size, and latitudinal variation in average size of mature sharks. © 2020 The Fisheries Society of the British Isles. Palacios-Hernández Daniela D https://orcid.org/0000-0002-9025-448X El Colegio de la Frontera Sur, Lerma, Mexico. Castillo-Géniz José L JL https://orcid.org/0000-0002-8937-5671 El Colegio de la Frontera Sur, Lerma, Mexico. Méndez-Loeza Iván I https://orcid.org/0000-0002-1700-9867 El Colegio de la Frontera Sur, Lerma, Mexico. Pérez-Jiménez Juan C JC https://orcid.org/0000-0002-7258-1700 El Colegio de la Frontera Sur, Lerma, Mexico. eng Funding was provided by CONACyT (CB-2008-101997-Z) and the Environmental Defence Fund (Oceans Program). Journal Article 2020 04 26 England J Fish Biol 0214055 0022-1112 IM asynchronous litter size reproductive cycle size at maternity size at maturity 2020 03 03 2020 03 19 2020 03 25 2020 3 31 6 0 2020 3 31 6 0 2020 3 31 6 0 ppublish 32222979 10.1111/jfb.14330 REFERENCES, 2020</i></font><br><font color=#008000>http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0<br></font></span><br>5.  <a href=http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0 class=title>Mercury-selenium concentrations in silky sharks (Carcharhinus falciformis) and their toxicological concerns in the southern Mexican Pacific.</a><a href=http://ubio.org/tools/linkit.php?map%5B%5D=all&link_type=2&url=http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0><img src=linkit.png border=0 title='LinkIT' alt='LinkIT'></a> <br><span class=j>Rodríguez-Gutiérrez J, Galván-Magaña F, Jacobo-Estrada T, Arreola-Mendoza L, Sujitha SB, Jonathan MP<br><font color=gray><i>Marine pollution bulletin, 2020</i></font><br><font color=#008000>http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0<br></font></span><br>6.  <a href=http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0 class=title>Description and characterization of the artisanal elasmobranch fishery on Guatemala's Caribbean coast.</a><a href=http://ubio.org/tools/linkit.php?map%5B%5D=all&link_type=2&url=http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0><img src=linkit.png border=0 title='LinkIT' alt='LinkIT'></a> <br><span class=j>Hacohen-Domené A, Polanco-Vásquez F, Estupiñan-Montaño C, Graham RT<br><font color=gray><i>PloS one, 2020</i></font><br><font color=#008000>http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0<br></font></span><br>7.  <a href=http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0 class=title>Conservation genetics of the bonnethead shark <b>Sphyrna tiburo</b> in Bocas del Toro, Panama: Preliminary evidence of a unique stock.</a><a href=http://ubio.org/tools/linkit.php?map%5B%5D=all&link_type=2&url=http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0><img src=linkit.png border=0 title='LinkIT' alt='LinkIT'></a> <br><span class=j>Gonzalez C, Gallagher AJ, Caballero S<br><font color=gray><i>PloS one, 2019</i></font><br><font color=#008000>http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0<br></font></span><br>8.  <a href=http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0 class=title>Do sharks exhibit heterodonty by tooth position and over ontogeny? A comparison using elliptic Fourier analysis.</a><a href=http://ubio.org/tools/linkit.php?map%5B%5D=all&link_type=2&url=http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0><img src=linkit.png border=0 title='LinkIT' alt='LinkIT'></a> <br><span class=j>Cullen JA, Marshall CD<br><font color=gray><i>Journal of morphology, 2019</i></font><br><font color=#008000>http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0<br></font></span><br>9.  <a href=http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0 class=title>'Genome skimming' with the MinION hand-held sequencer identifies CITES-listed shark species in India's exports market.</a><a href=http://ubio.org/tools/linkit.php?map%5B%5D=all&link_type=2&url=http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0><img src=linkit.png border=0 title='LinkIT' alt='LinkIT'></a> <br><span class=j>Johri S, Solanki J, Cantu VA, Fellows SR, Edwards RA, Moreno I, Vyas A, Dinsdale EA<br><font color=gray><i>Scientific reports, 2019</i></font><br><font color=#008000>http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0<br></font></span><br>10.  <a href=http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0 class=title>Integration of multi-tissue PAH and PCB burdens with biomarker activity in three coastal shark species from the northwestern Gulf of Mexico.</a><a href=http://ubio.org/tools/linkit.php?map%5B%5D=all&link_type=2&url=http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0><img src=linkit.png border=0 title='LinkIT' alt='LinkIT'></a> <br><span class=j>Cullen JA, Marshall CD, Hala D<br><font color=gray><i>The Science of the total environment, 2019</i></font><br><font color=#008000>http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=0<br></font></span><br><br><br><table cellspacing=0 cellpadding=0 align=center><tr valign=bottom><td align=center><img src=p.png border=0></td><td align=center><img src=o_red.png border=0></td><td align=center><a href=http://ubio.org/portal/index.php?search=Sphyrna+tiburo&category=l&client=pubmed&startPage=2><img src=o_yellow.png border=0></a></td><td align=center><a href=http://ubio.org/portal/index.php?search=Sphyrna+tiburo&category=l&client=pubmed&startPage=3><img src=o_yellow.png border=0></a></td><td align=center><a href=http://ubio.org/portal/index.php?search=Sphyrna+tiburo&category=l&client=pubmed&startPage=4><img src=o_yellow.png border=0></a></td><td align=center><a href=http://ubio.org/portal/index.php?search=Sphyrna+tiburo&category=l&client=pubmed&startPage=5><img src=o_yellow.png border=0></a></td><td align=center><a href=http://ubio.org/portal/index.php?search=Sphyrna+tiburo&category=l&client=pubmed&startPage=6><img src=o_yellow.png border=0></a></td><td align=center><a href=http://ubio.org/portal/index.php?search=Sphyrna+tiburo&category=l&client=pubmed&startPage=7><img src=o_yellow.png border=0></a></td><td align=center><a href=http://ubio.org/portal/index.php?search=Sphyrna+tiburo&category=l&client=pubmed&startPage=8><img src=o_yellow.png border=0></a></td><td align=center><a href=http://ubio.org/portal/index.php?search=Sphyrna+tiburo&category=l&client=pubmed&startPage=9><img src=o_yellow.png border=0></a></td><td align=center><a href=http://ubio.org/portal/index.php?search=Sphyrna+tiburo&category=l&client=pubmed&startPage=2><img src=rtal.png border=0></a></td></tr><td align=center></td><td align=center>1</td><td align=center><a href=http://ubio.org/portal/index.php?search=Sphyrna+tiburo&category=l&client=pubmed&startPage=2>2</a></td><td align=center><a href=http://ubio.org/portal/index.php?search=Sphyrna+tiburo&category=l&client=pubmed&startPage=3>3</a></td><td align=center><a href=http://ubio.org/portal/index.php?search=Sphyrna+tiburo&category=l&client=pubmed&startPage=4>4</a></td><td align=center><a href=http://ubio.org/portal/index.php?search=Sphyrna+tiburo&category=l&client=pubmed&startPage=5>5</a></td><td align=center><a href=http://ubio.org/portal/index.php?search=Sphyrna+tiburo&category=l&client=pubmed&startPage=6>6</a></td><td align=center><a href=http://ubio.org/portal/index.php?search=Sphyrna+tiburo&category=l&client=pubmed&startPage=7>7</a></td><td align=center><a href=http://ubio.org/portal/index.php?search=Sphyrna+tiburo&category=l&client=pubmed&startPage=8>8</a></td><td align=center><a href=http://ubio.org/portal/index.php?search=Sphyrna+tiburo&category=l&client=pubmed&startPage=9>9</a></td><td align=center><a 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