The Eel Fisheries of the St. Lawrence Iroquoians

1988 ◽  
Vol 9 (2) ◽  
pp. 97-121 ◽  
Author(s):  
C. Junker-Andersen
Keyword(s):  
Great Degree ◽  
Seasonal Cycle ◽  
Archaeological Sites ◽  
Anguilla Rostrata ◽  
Late Prehistoric ◽  
Resource Exploitation ◽  
American Eel ◽  
Archaeological Data ◽  
Fish Resources ◽  
St Lawrence River

Recent zooarchaeological analyses of faunal materials recovered from the Steward (BfFt-2), Beckstead (BfFt-1), and Driver's (BeFu-2) archaeological sites in Eastern Ontario have demonstrated that the late prehistoric Iroquoian peoples who inhabited the upper St. Lawrence River valley depended to a great degree upon the exploitation of freshwater fish resources. Among the fish species found to be of primary importance to these peoples was the American Eel ( Anguilla rostrata [Lesueur]). The author examines both the ethnographic evidence and the available archaeological data concerning the native exploitation of this species to reconstruct the methods used in its capture and preparation, as well as its role in the St. Lawrence Iroquoians' seasonal cycle of faunal resource exploitation activities.

Description and first occurrence of Myxidium zealandicum (Protozoa: Myxosporidia) in the North American eel Anguilla rostrata LeSueur

1977 ◽  
Vol 55 (1) ◽  
pp. 52-59 ◽  
Author(s):  
M. P. Komourdjian ◽  
W. C. Hulbert ◽  
J. C. Fenwick ◽  
T. W. Moon
Keyword(s):  
North American ◽  
Kidney Tissue ◽  
Quebec City ◽  
Anguilla Rostrata ◽  
Fast Green ◽  
American Eel ◽  
The North ◽  
First Occurrence ◽  
Scanning Electron ◽  
St Lawrence River

Myxidium zealandicum Hine, 1975 is described from gills and kidney of the North American eel Anguilla rostrata collected from the St. Lawrence River near Quebec City and Cornwall. Cysts of M. zealandicum on gills measured up to 1 by 2 mm and in kidneys up to 15 by 20 mm. In addition to single spherical cysts, several polymorphous forms were also observed on the gills. Polymorphous cysts were not found in the kidney. Different stages of spore development were evident in gill cysts and were differentiated by means of a lead hematoxylin – fast green stain. Number and pattern of spore striations were examined by scanning electron microscopy and were highly variable. The invasion of the parasite into kidney tissue appeared to result in less physiological damage to the host than did gill invasion. The existence of this parasite, previously found in eel species in New Zealand, in a North American eel species is discussed.

scholarly journals Assessment of upstream and downstream passability for eel at dams

2015 ◽  
Vol 73 (1) ◽  
pp. 22-32 ◽  
Author(s):  
V. Tremblay ◽  
C. Cossette ◽  
J-D. Dutil ◽  
G. Verreault ◽  
P. Dumont
Keyword(s):  
Statistical Analysis ◽  
Habitat Loss ◽  
Population Decline ◽  
Freshwater Discharge ◽  
Anguilla Rostrata ◽  
Dam Construction ◽  
American Eel ◽  
Earthfill Dams ◽  
Materials Used ◽  
St Lawrence River

Abstract The American eel (Anguilla rostrata) population has experienced a marked population decline. Habitat loss resulting from dam construction to improve the control and use of freshwater discharge is one of the factors involved. There are some 5600 dams in rivers draining to the St. Lawrence River in Quebec (Canada). Their passability to eels migrating upstream and downstream has been assessed using the Québec Dam Database. Eighteen percent of the dams are used for supplying water and 13% for hydroelectricity, but >50% are used for recreational purposes. Although the majority of the dams are <3 m in height and are made of concrete or earthfill, dams present a great variety of physical characteristics. Passability ranks were assigned to each category of dam based on three assessment criteria: the height of the dam, the materials used in its construction, and its use. Passability to upstream migrants was also assessed from photographs for a subset of dams. The two methods (statistical analysis and the use of photographs) may yield different results, but the two methods were consistent to identify the impassable dams. This analysis shows overall that the problem of passability is more significant for upstream passage than it is for downstream passage.

scholarly journals Towards a downstream passage solution for out-migrating American eel (Anguilla rostrata) on the St. Lawrence River

2021 ◽  
Vol 6 (2) ◽  
pp. 151-168 ◽  
Author(s):  
Thomas C. Pratt ◽  
David R. Stanley ◽  
Scott Schlueter ◽  
Jake K.L. La Rose ◽  
Andrew Weinstock ◽  
...  
Keyword(s):  
Anguilla Rostrata ◽  
American Eel ◽  
St Lawrence River

Eels at the Edge: Science, Status, and Conservation Concerns

2009 ◽  
Keyword(s):  
Aquatic Ecosystem ◽  
Sustainable Management ◽  
Management Practices ◽  
Lake Ontario ◽  
Abundant Species ◽  
Fishing Effort ◽  
Anguilla Rostrata ◽  
American Eel ◽  
Commercial Species ◽  
St Lawrence River

<em>Abstract.</em>—The American eel <em>Anguilla rostrata </em>is an important component of the aquatic ecosystem of Lake Ontario and the upper St. Lawrence River and historically has been one of the most valuable commercial species in Ontario waters of this system. Between 1984 and 1993, reported annual harvest ranged from 104 to 124 metric tons. Since 1993, eel harvests have declined precipitously in all areas above the Moses-Saunders Power Dam in spite of an increase in price per kg. During 2002, fishers held 85 eel licenses and harvested 12 metric tons (mt) of maturing yellow eel, mostly with hoop nets and trap nets. The numbers of eels migrating into this system in recent years suggests that if fishing effort remains constant, commercial harvests in areas above the dam will be under 3 mt per year between now and 2010. Provincial management programs have imposed license and season restrictions, reduced quotas, and more detailed catch reporting. Sustainable management practices throughout the range of this panmictic species will be required to restore the eel as an abundant species in Lake Ontario and the upper St. Lawrence River.

The use of scanning electron microscopy in interpreting chenopodium remains from three archaeological sites in northwestern Iowa

1992 ◽  
Vol 50 (2) ◽  
pp. 1112-1113
Author(s):  
Douglas William Jones
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Archaeological Sites ◽  
Late Prehistoric ◽  
Eastern United States ◽  
Chenopodium Berlandieri ◽  
Seed Identification ◽  
Level 2 ◽  
Scanning Electron

Within the past 20 years, archaeobotanical research in the Eastern United States has documented an early agricultural complex before the dominance of the Mesoamerican domesticates (corn, beans, and squash) in late prehistoric and historic agricultural systems. This early agricultural complex consisted of domesticated plants such as Iva annua var.macrocarpa (Sumpweed or Marshelder), Hellanthus annuus (Sunflower) and Chenopodium berlandieri, (Goosefoot or Lasbsquarters), and heavily utilized plants such as Polygonum erectum (Erect Knotweed), Phalaris caroliniana (May grass), and Hordeum pusillum (Little Barley).Recent research involving the use of Scanning Electron Microscopy (SEM) specifically on Chenopodium has established diagnostic traits of wild and domesticated species seeds. This is important because carbonized or uncarbonized seeds are the most commonly recovered Chenopodium material from archaeological sites. The diagnostic seed traits assist archaeobotanists in identification of Chenopodium remains and provide a basis for evaluation of Chenopodium utilization in a culture's subsistence patterns. With the aid of SEM, an analysis of Chenopodium remains from three Late Prehistoric sites in Northwest Iowa (Blood Run [Oneota culture], Brewster [Mill Creek culture], and Chan-Ya-Ta [Mill Creek culture]) has been conducted to: 1) attempt seed identification to a species level, 2) evaluate the traits of the seeds for classification as either wild or domesticated, and 3) evaluate the role of Chenopodium utilization in both the Oneota and Mill Creek cultures.

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 Multitemporal–Multispectral UAS Surveys for Archaeological Research: The Case Study of San Vincenzo Al Volturno (Molise, Italy)

2021 ◽  
Vol 13 (14) ◽  
pp. 2719
Author(s):  
Nicodemo Abate ◽  
Alessia Frisetti ◽  
Federico Marazzi ◽  
Nicola Masini ◽  
Rosa Lasaponara
Keyword(s):  
Middle Ages ◽  
Principal Component ◽  
Archaeological Site ◽  
Archaeological Sites ◽  
Medieval Art ◽  
Archaeological Data ◽  
History Of ◽  
Close Range ◽  
Low Altitude

Unmanned aerial vehicles are currently the most used solution for cultural heritage in the field of close range and low altitude acquisitions. This work shows data acquired by multitemporal and multispectral aerial surveys in the archaeological site of San Vincenzo al Volturno (Molise, Italy). The site is one of the most important medieval archaeological sites in the world. It is a monastic settlement that was particularly rich during the early Middle Ages, and is famous for its two full-frescoed crypts which represent a milestone in the history of medieval art. Thanks to the use of multispectral aerial photography at different times of the year, an area not accessible to archaeological excavation has been investigated. To avoid redundancy of information and reduce the number of data to be analysed, a method based on spectral and radiometric enhancement techniques combined with a selective principal component analysis was used for the identification of useful information. The combination of already published archaeological data and new remote sensing discoveries, has allowed to better define the situation of the abbey during the building phases of the 8th/9th century and 11th century, confirming and adding new data to the assumptions made by archaeologists.

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