In-water and dry-dock hull fouling assessments reveal high risk for regional translocation of nonindigenous species in the southwestern Atlantic

Hydrobiologia ◽  
2020 ◽  
Author(s):  
Marco Meloni ◽  
Nancy Correa ◽  
Fabio Bettini Pitombo ◽  
Ignacio Luis Chiesa ◽  
Brenda Doti ◽  
...  
2015 ◽  
Vol 72 (8) ◽  
pp. 1230-1242 ◽  
Author(s):  
Farrah T. Chan ◽  
Hugh J. MacIsaac ◽  
Sarah A. Bailey

Ships’ hull fouling and ballast water are leading vectors of marine nonindigenous species globally, yet few studies have examined their magnitude in the Arctic. To determine the relative importance of these vectors in Canada’s Arctic, we collected hull and ballast water samples from 13 and 32 vessels, respectively, at Churchill, Manitoba. We compared total abundance and richness of invertebrates transported on hulls versus those in ballast water. We found that hull fouling was associated with higher total abundance and richness of nonindigenous species when compared with ballast water. Additionally, a significant positive richness–total abundance relationship for nonindigenous species for hull fouling but not for ballast water assemblages suggests that the likelihood of a high-risk (i.e., species-rich and high abundance) introduction event is greater for the former than the latter vector. The discovery of viable, widespread nonindigenous barnacles in hull samples further underscores the prominence of hull fouling over ballast water as a vector of nonindigenous species. Our study demonstrates that hull fouling is a more important vector for transfer of nonindigenous species to the Canadian Arctic than ballast water based on abundance and richness of nonindigenous species transported by the two vectors.


1982 ◽  
Vol 47 (4) ◽  
pp. 373-375 ◽  
Author(s):  
James L. Fitch ◽  
Thomas F. Williams ◽  
Josephine E. Etienne

The critical need to identify children with hearing loss and provide treatment at the earliest possible age has become increasingly apparent in recent years (Northern & Downs, 1978). Reduction of the auditory signal during the critical language-learning period can severely limit the child's potential for developing a complete, effective communication system. Identification and treatment of children having handicapping conditions at an early age has gained impetus through the Handicapped Children's Early Education Program (HCEEP) projects funded by the Bureau of Education for the Handicapped (BEH).


1983 ◽  
Vol 48 (1) ◽  
pp. 110-110

For the November 1982 JSHD article, "A Community Based High Risk Register for Hearing Loss," the author would like to acknowledge three additional individuals who made valuable contributions to the study. They are Marie Carrier, Gene Lyon, and Bobbie Robertson.


1997 ◽  
Vol 27 (11) ◽  
pp. 1247-1253 ◽  
Author(s):  
M. L. BURR ◽  
T. G. MERRETT ◽  
F. D. J. DUNSTAN ◽  
M. J. MAGUIRE
Keyword(s):  

2001 ◽  
Vol 120 (5) ◽  
pp. A120-A121
Author(s):  
H STRUL ◽  
E BIRENBAUM ◽  
B STERN ◽  
D KAZANOV ◽  
L THEODOR ◽  
...  

2001 ◽  
Vol 120 (5) ◽  
pp. A376-A376
Author(s):  
B JEETSANDHU ◽  
R JAIN ◽  
J SINGH ◽  
M JAIN ◽  
J SHARMA ◽  
...  

2001 ◽  
Vol 120 (5) ◽  
pp. A741-A741
Author(s):  
P ANG ◽  
D SCHRAG ◽  
K SCHNEIDER ◽  
K SHANNON ◽  
J JOHNSON ◽  
...  

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