Pockmarks in Passamaquoddy Bay, New Brunswick, Canada

2016 ◽  
Vol 46 (1) ◽  
pp. 111-112 ◽  
Author(s):  
L. L. Brothers ◽  
C. Legere ◽  
J. E. Hughes Clarke ◽  
J. T. Kelley ◽  
W. A. Barnhardt ◽  
...  
Keyword(s):  
New Brunswick ◽  
Passamaquoddy Bay

Herring Fishery in Southern New Brunswick

1960 ◽  
Vol 17 (2) ◽  
pp. 133-168
Author(s):  
R. A. McKenzie ◽  
S. N. Tibbo
Keyword(s):  
New Brunswick ◽  
Tidal Power ◽  
Annual Variations ◽  
Significant Relationships ◽  
Passamaquoddy Bay

Most of the herring taken in the Passamaquoddy area of southern New Brunswick are caught in stationary weirs built close to shore. Analyses of weir catches show no significant relationships between average catches inside Passamaquoddy Bay and catches in outside areas for the same year. Weirs inside Passamaquoddy Bay are more efficient and catch about twice as many herring per weir as those outside the Bay.Seasonal and annual variations both in individual weir catches and in total catches in the various statistical districts of Charlotte County are far greater now than any changes that can be forecast as resulting from the installation of the proposed Passamaquoddy tidal power dams.

Life history of Mysis stenolepis Smith (Crustacea, Mysidacea)

1975 ◽  
Vol 53 (7) ◽  
pp. 942-952 ◽  
Author(s):  
T. Amaratunga ◽  
S. Corey
Keyword(s):  
Young Adults ◽  
Life History ◽  
New Brunswick ◽  
Shallow Water ◽  
Field Study ◽  
Sexual Maturity ◽  
Developmental Stages ◽  
Shallow Waters ◽  
Passamaquoddy Bay ◽  
History Of

A 17-month field study showed that Mysis stenolepis in Passamaquoddy Bay, New Brunswick lives for about 1 year. Young are released in shallow water early in spring and grow rapidly during the summer. In the fall, young adults migrate to deeper water where they reach sexual maturity. Transfer of sperm lakes place during winter in deeper regions of the Bay. soon after which the males die. Females survive and in spring migrate to shallow waters to release young after which they die. Females breed once and carry an average of 157 young per brood. Developmental stages of the postmarsupial young are described and discussed.

Fatness, Digestion and Food of Passamaquoddy Young Herring

1936 ◽  
Vol 2 (4) ◽  
pp. 401-429 ◽  
Author(s):  
Helen I. Battle ◽  
A. G. Huntsman ◽  
Anne M. Jeffers ◽  
G. W. Jeffers ◽  
W. H. Johnson ◽  
...  
Keyword(s):  
Light Intensity ◽  
New Brunswick ◽  
Condition Factor ◽  
Gulf Of Maine ◽  
Gastric Digestion ◽  
Local Degree ◽  
Low Correlation ◽  
Passamaquoddy Bay

Using condition factor as criterion of fatness, investigation confirms the report of those handling them that herring are characteristically fat in each locality of the Passamaquoddy region of southern New Brunswick. Herring feed by an act of capture, moving towards the source of light in doing so. They do not feed in darkness, requiring light about as strong as moonlight. Gastric digestion takes [Formula: see text] hours at 6° and 6 and 7 hours at 20 °C. in herring 14 to 16 cm. long. Where fattest, herring contain the most food and of the larger kinds. In some localities herring have more food and of special kinds after moonlight nights. Herring are mainly in upper layers of water in summer, and nearer surface when light intensity is low. Correlation between fatness of herring and either the total quantity of food present locally or the local degree of concentration of food in the water is quite imperfect. Good correlation exists between fatness and quantity of food present near the surface in the particular locality. In localities where herring have more food after moonlight nights, food organisms are much more abundant near the surface in moonlight than in sunlight. Food organisms are most concentrated in passages and near shoals where thorough mixing of the water occurs. In the passages at the mouth of Passamaquoddy bay, deepwater forms from the gulf of Maine are available at the surface at all times of the day, giving the fattest herring. To exhibit characteristic fatness herring must remain some weeks in the locality.

The life history of Diastylis sculpta Sars, 1871 (Crustacea: Cumacea) in Passamaquoddy Bay, New Brunswick

1976 ◽  
Vol 54 (5) ◽  
pp. 615-619 ◽  
Author(s):  
Susan Corey
Keyword(s):  
Life History ◽  
New Brunswick ◽  
Life Span ◽  
Shallow Water ◽  
Maximum Life Span ◽  
Summer Generation ◽  
Passamaquoddy Bay ◽  
History Of ◽  
The Mean ◽  
Gravid Females

Diastylis sculpta was collected from shallow water (1–15 m) in Passamaquoddy Bay over a 26-month period. D. sculpta produces a rapidly growing and developing summer generation between two successive winter generations. The overwintering generation releases young in mid-July and late August. The summer generation releases young in November. The mean fecundity of the summer-gravid females (78.4) is much greater than the mean fecundity (20.0) of the fall-gravid females. The maximum life-span is 5 months and 12 months for members of the summer and winter generations respectively.

Reproductive timing by the polychaetes Clymenella torquata and Praxillella praetermissa in Passamaquoddy Bay, New Brunswick

1975 ◽  
Vol 53 (3) ◽  
pp. 293-296 ◽  
Author(s):  
V. Leslie Rowe ◽  
H. B. N. Hynes ◽  
A. V. Tyler
Keyword(s):  
New Brunswick ◽  
Reproductive Biology ◽  
Numerical Stability ◽  
Food Item ◽  
Reproductive Timing ◽  
The South ◽  
Arctic Species ◽  
Passamaquoddy Bay

Two species of polychaete, Clymenella torquata and Praxillella praetermissa, are able to maintain sufficient numerical stability to be a regular food item of fish in Passamaquoddy Bay, New Brunswick. Each species is living near an extreme of its distribution in Passamaquoddy Bay and this has necessitated adaptations in habitat and in reproductive biology. Clymenella spawn at the same temperature as do populations to the south but later in the summer. Praxillella, an Arctic species, spawns during winter.

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