Fate of translocated American eel ( Anguilla rostrata ) in the lower Ottawa River and passage behavior at a multichannel barrier

2021 ◽  
Author(s):  
William M. Twardek ◽  
Lauren J. Stoot ◽  
Steven J. Cooke ◽  
Nicolas W. R. Lapointe ◽  
David R. Browne
Keyword(s):  
Anguilla Rostrata ◽  
American Eel ◽  
Ottawa River

The American Eel (Anguilla rostrata) in Eastern Lake Ontario

1972 ◽  
Vol 29 (5) ◽  
pp. 535-543 ◽  
Author(s):  
Donal A. Hurley
Keyword(s):  
Life History ◽  
Sexual Maturity ◽  
Lake Ontario ◽  
The Other ◽  
Anguilla Rostrata ◽  
Growth Phases ◽  
American Eel ◽  
Ottawa River ◽  
History Of ◽  
Fin Length

The life history of eels in Lake Ontario was studied by measuring, tagging, and releasing about 1500 individuals between 1958 and 1966. The smallest eels captured were from 295 to 318 mm long. Presumably they entered the lake at about age III–IV at lengths of 200–300 mm. Otoliths of eels from the lake showed a range in age between IV and XVIII, while those of smaller eels from the Ottawa River ranged between age II and IX. The length–weight regressions showed two distinct growth phases: one from about 480 mm to 790 mm, the other from about 830 mm to 1080 mm. Growth of the orbital diameter, interorbital distance, and pectoral fin length in relation to total length was not obviously related to sexual maturity. Eels that emigrated from the lake had a greater weight–length ratio than those that remained in the lake for another year. Of 917 tagged eels transplanted within Lake Ontario, 28 were recaptured near and 18 recaptured far from the original capture site. Although the results are inconclusive, there is a suggestion that eels have home territories within the lake.

Relating American Eel Anguilla rostrata abundance to environmental DNA concentration in the Bronx River

2021 ◽  
Author(s):  
Sam C. Chin ◽  
John Waldman ◽  
Mike Bednarski ◽  
Merry Camhi ◽  
Jake LaBelle ◽  
...  
Keyword(s):  
Environmental Dna ◽  
Anguilla Rostrata ◽  
American Eel ◽  
Dna Concentration ◽  
Bronx River

scholarly journals American eel,Anguilla rostrata, growth in fresh and salt water: implications for conservation and aquaculture

2009 ◽  
Vol 16 (4) ◽  
pp. 306-314 ◽  
Author(s):  
H. M. LAMSON ◽  
D. K. CAIRNS ◽  
J.-C. SHIAO ◽  
Y. IIZUKA ◽  
W.-N. TZENG
Keyword(s):  
Salt Water ◽  
Anguilla Rostrata ◽  
American Eel

scholarly journals Behavioural guidance of yellow-stage American eel Anguilla rostrata with a light- emitting diode device

2018 ◽  
Vol 35 ◽  
pp. 159-168 ◽  
Author(s):  
CK Elvidge ◽  
MI Ford ◽  
TC Pratt ◽  
KE Smokorowski ◽  
M Sills ◽  
...  
Keyword(s):  
Light Emitting Diode ◽  
Anguilla Rostrata ◽  
American Eel ◽  
Light Emitting

Artificial maturation, fertilization, and early development of the American eel (Anguilla rostrata)

2010 ◽  
Vol 88 (11) ◽  
pp. 1121-1128 ◽  
Author(s):  
K. Oliveira ◽  
W. E. Hable
Keyword(s):  
Early Development ◽  
Anguilla Rostrata ◽  
Sargasso Sea ◽  
American Eel ◽  
Important Species ◽  
Vitro Fertilization ◽  
Commercially Important ◽  
Elusive Species ◽  
American Eels

Spawning for the American eel ( Anguilla rostrata (Le Sueur, 1817)) takes place in secretive locations within the Sargasso Sea, which has thus far prevented investigations of gametogenesis and early development in this ecologically and commercially important species. Attempts to induce maturation and reproduction in this species have been few and have produced limited results, with a single report of the production of gastrula-stage embryos. Here we report the successful maturation of female American eels. Maturation occurred within 13 weeks and ovulation was induced with a single injection of 17α,20β-dihydroxy-4-pregnen-3-one (DHP). Following in vitro fertilization, embryogenesis through hatching was observed and larvae were maintained for up to 6 days. We show that a crucial factor for successful fertilization is the stage of the oocyte at the time of induced ovulation. Oocytes that had not reached the migratory nucleus stage, or had passed this stage, were not successfully fertilized. These findings demonstrate that American eel can reproduce in the laboratory and previously untestable hypotheses pertaining to the developmental biology of this elusive species can now be explored.

Sign in / Sign up

Export Citation Format

Share Document