Parasitic fauna of spiny dogfish Squalus acanthias L. off New Zealand
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چکیده
منابع مشابه
Gestation period and pupping seasonality of female spiny dogfish (Squalus acanthias) off southern New England
The views and opinions expressed or implied in this article are those of the author (or authors) and do not necessarily reflect the position of the National Marine Fisheries Service, NOAA. Abstract—Recently, it has been suggested that spiny dogfish (Squalus acanthias) in the western North Atlantic Ocean have a shorter gestation period than the widely cited 2 years, have an asynchronous reproduc...
متن کاملRetinofugal pathways in fetal and adult spiny dogfish, Squalus acanthias.
Retinofugal pathways in fetal and adult spiny dogfish were determined by intraocular injection of [3H]proline for autoradiography. Distribution and termination of the primary retinal efferents were identical in pups and adults. The retinal fibers decussate completely, except for a sparse ipsilateral projection to the caudal preoptic area. The decussating optic fibers terminate ventrally in the ...
متن کاملRenal conservation of trimethylamine oxide by the spiny dogfish, Squalus acanthias.
COHEN, JULIUS J., MARCUS A. KRUPP AND CHARLES A. CHIDSEY III. Renal conservation of trimethylamine oxide in the spiny dogfish, Squalus acanthias. Am. J. Physiol. 194(2): 229-235. Io#.-Trimethylamine oxide (Oxide) pl asma concentrations in the dogfish have been found to be maintained within the narrow range of 60-80 pmol/ml. These levels are maintained in spite of prolonged (up to 41 days) fasti...
متن کاملGlobal population structure of the spiny dogfish Squalus acanthias, a temperate shark with an antitropical distribution.
The spiny dogfish (Squalus acanthias) is a temperate, coastal squaloid shark with an antitropical distribution in the Atlantic and Pacific oceans. The global population structure of this species is poorly understood, although individuals are known to undergo extensive migrations within coastal waters and across ocean basins. In this study, an analysis of the global population structure of the s...
متن کاملComparative analysis of methods for determining bite force in the spiny dogfish Squalus acanthias.
Many studies have identified relationships between the forces generated by the cranial musculature during feeding and cranial design. Particularly important to understanding the diversity of cranial form amongst vertebrates is knowledge of the generated magnitudes of bite force because of its use as a measure of ecological performance. In order to determine an accurate morphological proxy for b...
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ژورنال
عنوان ژورنال: Acta Ichthyologica et Piscatoria
سال: 1984
ISSN: 0137-1592,1734-1515
DOI: 10.3750/aip1984.14.1-2.11