Role of Physical Barriers in the Control of Sea Lamprey (Petromyzon marinus)

1980 ◽  
Vol 37 (11) ◽  
pp. 2118-2122 ◽  
Author(s):  
J. B. Hunn ◽  
W. D. Youngs
Keyword(s):  
Integrated Control ◽  
Petromyzon Marinus ◽  
Sea Lamprey ◽  
Upper Great Lakes ◽  
Ongoing Research ◽  
Control Approach ◽  
Physical Barriers ◽  
Barrier Dam ◽  
Burst Swimming ◽  
Spawning Run

Mechanical and electromechanical barriers played a significant role in the initial attempts to control sea lamprey (Petromyzon marinus) populations in the upper Great Lakes. More recently electromechanical weirs have been used to assess the relative abundance of spawning-run sea lampreys in Lake Superior. Development of an integrated control approach to sea lamprey control has stimulated an ongoing research program to define structural and/or velocity criteria that can be used to design barrier dams that block spawning runs of sea lamprey.Key words: sea lamprey, Petromyzon marinus; physical barriers, burst swimming speed, barrier dam criteria

Haemocytology of the supraneural myeloid body in the sea lamprey during several phases of life cycle

1974 ◽  
Vol 52 (12) ◽  
pp. 1585-1589 ◽  
Author(s):  
J. C. George ◽  
F. W. H. Beamish
Keyword(s):  
Blood Cells ◽  
Petromyzon Marinus ◽  
Cell Types ◽  
Sea Lamprey ◽  
Histochemical Staining ◽  
Fat Cells ◽  
Cell Type ◽  
Adult Tissue ◽  
Spawning Run ◽  
Early Phases

The supraneural myeloid body of the sea lamprey (Petromyzon marinus) was studied in the feeding adult, late spawning run adult, and metamorphosing ammocoete. The fatty nature of the tissue was established by histochemical staining and electron microscopy. The presence of the fat cells and the actively differentiating blood cells evinced its similarity to the bone marrow in higher animals, thereby suggesting a phylogenetic affinity. In the late spawning run lampreys, the tissue was found to be almost empty of blood cells, leaving empty spaces within the stromal skeleton. In the feeding adult tissue, the various blood cell types differentiated from precursor cells have been identified. Megakaryoblasts possibly representing early phases of the cell type were observed only in the transforming (macrophthalmia stage) and adult lampreys. A marked active development of the tissue in the ammocoete was seen only at the fourth stage of the metamorphosing ammocoete immediately before macrophthalmia. At the macrophthalmia stage, the haematopoietic activity in the tissue increased substantially.

scholarly journals Larval Sea Lampreys (Petromyzon marinus) Do Not Emigrate from a Risky Habitat Under Semi-natural Conditions

2016 ◽  
Vol 130 (1) ◽  
pp. 49
Author(s):  
Jacqueline L. Ayotte ◽  
István Imre
Keyword(s):  
Integrated Management ◽  
Petromyzon Marinus ◽  
Sea Lamprey ◽  
Management Program ◽  
Whole Body ◽  
Water Control ◽  
Upper Great Lakes ◽  
Sea Lampreys ◽  
Body Extract ◽  
Behavioural Manipulation

Sea Lamprey (Petromyzon marinus), invaded the upper Great Lakes in the early 20th century, precipitating abrupt declines ina number of native fish species. A recently proposed alternative method for the behavioural manipulation of Sea Lamprey populations is the use of conspecific damage-released alarm and predator cues as potential repellents. We examined whether larval Sea Lamprey (Petromyzon marinus) ammocoetes can be manipulated to emigrate from an area by labeling their habitat “risky” with the regular release of chemosensory alarm cues over several days. in a semi-natural laboratory environment, we exposed eight replicate groups of eight ammocoetes twice a day, for 7 days, to deionized water (control), ammocoete whole-body extract (damage-released alarm cue), and 2-phenylethylamine HCl (predator cue). None of the experimental stimuli induced emigration from the experimental arena. This approach does not hold any promise for ammocoete behavioural manipulation in the context of a Sea Lamprey integrated management program.

Changes in Spawning Runs of Sea Lamprey (Petromyzon marinus) in Selected Streams of Lake Superior after Chemical Control

1980 ◽  
Vol 37 (11) ◽  
pp. 1851-1860 ◽  
Author(s):  
H. H. Moore ◽  
L. P. Schleen
Keyword(s):  
Great Lakes ◽  
Chemical Treatment ◽  
Chemical Control ◽  
Lake Superior ◽  
Petromyzon Marinus ◽  
Sea Lamprey ◽  
Spawning Migration ◽  
Habitat Alteration ◽  
Sea Lampreys ◽  
Spawning Run

During lampricide treatment of a stream, sea lamprey, Petromyzon marinus, that will constitute the spawning run the following spring inhabit the Great Lakes and are not affected by the treatment. However, the number of adults captured at electrical barriers declined as much as 99% in some streams 1 year after chemical treatment. Large declines of adults were noted in streams which were treated late in the year. Streams in which significant populations of larval lampreys survived the chemical treatment, or contained lentic populations, continued to attract adults. Adult sea lampreys could be attracted to sea lamprey ammocoetes in streams or in offshore areas and hence use this as one of a number of clues to determine rivers suitable for spawning.Key words: sea lamprey, olfaction, orientation/homing, spawning migration, habitat alteration (chemical), Petromyzon marinus, lampricides

Sterility Method of Pest Control and Its Potential Role in an Integrated Sea Lamprey (Petromyzon marinus) Control Program

1980 ◽  
Vol 37 (11) ◽  
pp. 2108-2117 ◽  
Author(s):  
Lee H. Hanson ◽  
Patrick J. Manion
Keyword(s):  
Great Lakes ◽  
Pest Control ◽  
Integrated Control ◽  
Petromyzon Marinus ◽  
Control Program ◽  
Sea Lamprey ◽  
Effective Control ◽  
Control Fish ◽  
Sea Lampreys ◽  
Normal Males

The sterility method of pest control could be an effective tool in the sea lamprey (Petromyzon marinus) control program in the Great Lakes. Some of the requirements for its successful application have been met. A field study demonstrated that the release of male sea lampreys, sterilized by the injection of 100 mg/kg of P,P-bis(1-aziridinyl)-N-methylphosphinothioic amide (bisazir), will reduce the number of viable larvae produced. The actual reduction in reproductive success that occurred was directly related to the ratio of sterile to normal males in the population. The technique can be used in many ways in an integrated control program and has considerable potential for the more effective control of the sea lamprey. Eradication is a distinct possibility.Key words: sea lamprey, Petromyzon marinus; pest control, fish control, sterile-male technique, sterilization, chemosterilants, bisazir, Great Lakes

Classification of Sea Lamprey (Petromyzon marinus) Attack Marks on Great Lakes Lake Trout (Salvelinus namaycush)

1980 ◽  
Vol 37 (11) ◽  
pp. 1989-2006 ◽  
Author(s):  
Everett Louis King Jr.
Keyword(s):  
Great Lakes ◽  
Lake Trout ◽  
Petromyzon Marinus ◽  
Attachment Site ◽  
Sea Lamprey ◽  
Salvelinus Namaycush ◽  
Oral Disc ◽  
Field Assessment ◽  
Sea Lampreys

Criteria for the classification of marks inflicted by sea lamprey (Petromyzon marinus) into nine categories were developed from laboratory studies in an attempt to refine the classification system used in field assessment work. These criteria were based on characteristics of the attachment site that could be identified under field conditions by unaided visual means and by touching the attachment site. Healing of these marks was somewhat variable and was influenced by the size of lamprey, duration of attachment, severity of the wound at lamprey detachment, season and water temperature, and by other less obvious factors. Even under laboratory conditions staging of some wounds was difficult, especially at low water temperatures. If these criteria are to be used effectively and with precision in the field, close examination of individual fish may be required. If the feeding and density of specific year-classes of sea lampreys are to be accurately assessed on an annual basis, close attention to the wound size (as it reflects the size of the lamprey's oral disc) and character of wounds on fish will be required as well as consideration of the season of the year in which they are observed.Key words: sea lamprey, attack marks, lake trout, Great Lakes

Evidence that 3-keto petromyzonol sulphate specifically attracts ovulating female sea lamprey, Petromyzon marinus

2005 ◽  
Vol 70 (5) ◽  
pp. 1037-1045 ◽  
Author(s):  
Michael J. Siefkes ◽  
Scott R. Winterstein ◽  
Weiming Li
Keyword(s):  
Petromyzon Marinus ◽  
Sea Lamprey
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