The National Nonindigenous Aquatic Species Database

Fact Sheet ◽  
2012 ◽  
Author(s):  
Matthew E. Neilson ◽  
Pamela L. Fuller
Keyword(s):  
Aquatic Species ◽  
Nonindigenous Aquatic Species

Trim and Draft Control Capability of the Variable Buoyancy Ship

2011 ◽  
Vol 27 (03) ◽  
pp. 118-126
Author(s):  
Michael G. Parsons ◽  
Miltiadis Kotinis
Keyword(s):  
Coastal Waters ◽  
Ship Design ◽  
Design Concept ◽  
Aquatic Species ◽  
Surface Vessels ◽  
Control Capability ◽  
Nonindigenous Aquatic Species

The Variable Buoyancy Ship concept has been developed to address the problem of the introduction of nonindigenous aquatic species (NIS) into coastal waters. While this ship design concept essentially eliminates the transport of NIS across the globe, it presents special problems for operators with respect to their control of trim and draft. An investigation was, therefore, undertaken to assess this capability and ensure that adequate capability would be provided. To better visualize this issue, the equilibrium polygon used in early submarine design has been adapted to provide an effective way to characterize the trim and draft control capability of surface vessels. The results of this investigation and resulting design concept modifications are presented.

scholarly journals Are ecological goals suitable references to assess river restoration results? The downstream parts of the rivers Rhine and Meuse as an example

2010 ◽  
Author(s):  
Keyword(s):  
Water Quality ◽  
The Netherlands ◽  
Human Development ◽  
River Water ◽  
River Restoration ◽  
Historical Analysis ◽  
River Water Quality ◽  
Aquatic Species ◽  
Nonindigenous Aquatic Species

The paper presents the historical analysis of the human development of the Meuse and the Rhine rivers in the Netherlands. Causes and consequences of the geomorphological alterations of the rivers’ natural beds have been discussed. The paper provides facts and up-to-date hypothesis aimed to explain the process of new (nonindigenous) aquatic species emergence process caused by river water quality and biotopes restoration in the Netherlands.

scholarly journals Physiology: An Important Tool to Assess the Welfare of Aquatic Animals

Biology ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 61
Author(s):  
Ismael Jerez-Cepa ◽  
Ignacio Ruiz-Jarabo
Keyword(s):  
Animal Welfare ◽  
Stress Responses ◽  
Emotional State ◽  
Aquatic Species ◽  
Natural Behavior ◽  
Aquatic Animals ◽  
Negative Experiences ◽  
Proper Functioning ◽  
Analytical Tools

The assessment of welfare in aquatic animals is currently under debate, especially concerning those kept by humans. The classic concept of animal welfare includes three elements: The emotional state of the organism (including the absence of negative experiences), the possibility of expressing normal behaviors, and the proper functioning of the organism. While methods for evaluating their emotions (such as fear, pain, and anguish) are currently being developed for aquatic species and understanding the natural behavior of all aquatic taxa that interact with humans is a task that requires more time, the evaluation of internal responses in the organisms can be carried out using analytical tools. This review aims to show the potential of the physiology of crustaceans, cephalopods, elasmobranchs, teleosts, and dipnoans to serve as indicators of their wellbeing. Since the classical methods of assessing welfare are laborious and time-consuming by evaluation of fear, pain, and anguish, the assessment may be complemented by physiological approaches. This involves the study of stress responses, including the release of hormones and their effects. Therefore, physiology may be of help in improving animal welfare.

scholarly journals Genetic diversity in three invasive clonal aquatic species in New Zealand

BMC Genetics ◽  
2010 ◽  
Vol 11 (1) ◽  
pp. 52 ◽  
Author(s):  
Carla Lambertini ◽  
Tenna Riis ◽  
Birgit Olesen ◽  
John S Clayton ◽  
Brian K Sorrell ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
New Zealand ◽  
Aquatic Species

Note on host-parasite relationships observed in fluke infections of wild aquatic birds

Parasitology ◽  
1960 ◽  
Vol 50 (3-4) ◽  
pp. 323-327 ◽  
Author(s):  
B. P. Pande ◽  
S. S. Ahluwalia ◽  
J. S. Srivastava
Keyword(s):  
Wild Birds ◽  
Aquatic Species ◽  
Aquatic Birds ◽  
Representative Species ◽  
Helminthic Infections ◽  
House Crow ◽  
Host Parasite ◽  
Trematode Parasites

The last twenty-five years have witnessed an increasing output of significant work in this country on the trematode parasites of a number of wild birds, including aquatic species. These studies, which are mostly faunistic, and can be said to have commenced in 1926, when Bhalerao (1926) described from Burma (then a province of India) the flukes of the house crow, deal primarily with a large number of representative species of nearly twenty families of Digenea. Of these families, species assignable to the Clinostomidae Lühe, 1901, the Cyathocotylidae Poche, 1926, the Cyclocoelidae Kossack, 1911, the Diplostomidae Poirier, 1886, the Echinostomatidae Poche, 1926, the Notocotylidae Lühe, 1909, the Opisthorchiidae Braun, 1901, and the Strigeidae Railliet, 1919, were encountered in a survey conducted to assess the nature of helminthic infections in wild aquatic birds of the Mathura area.

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