Rosenbaum,H.C.,Pomilla,C.,Olavarria,C.,Baker,C.S.,Leslie,M.,Mendez,M.C.,Caballero,S.,Brasseur,M,Bannister,J.L,Best,P.B.,Bonatto,S.,Collins,T.J.Q.,Engel,M.H.,Ersts,P.J.,Findlay,K.P.,Florez-Gonzalez,L.,Garrigue,C.,Hauser,N.,Jenner,C.,Meyer,M.,Minton,G.,Poole,M.M.,Razafindrakoto,Y.
A first and preliminary analysis of mtDNA sequences from humpback whales for breeding stocks A-G and X Technical Report
no. 461, 2006, ISBN: SC/A06/HW59.
BibTeX | Tags: Atlantic, Atlantic Ocean, breeding grounds, DNA, dolphin, Humpback Whale, humpback whales, Indian Ocean, mitochondrial DNA, Oman, population, South Atlantic, Southern Hemisphere, stocks, whale, whales
@techreport{,
title = {A first and preliminary analysis of mtDNA sequences from humpback whales for breeding stocks A-G and X},
author = {Rosenbaum,H.C.,Pomilla,C.,Olavarria,C.,Baker,C.S.,Leslie,M.,Mendez,M.C.,Caballero,S.,Brasseur,M,Bannister,J.L,Best,P.B.,Bonatto,S.,Collins,T.J.Q.,Engel,M.H.,Ersts,P.J.,Findlay,K.P.,Florez-Gonzalez,L.,Garrigue,C.,Hauser,N.,Jenner,C.,Meyer,M.,Minton,G.,Poole,M.M.,Razafindrakoto,Y.},
issn = {SC/A06/HW59},
year = {2006},
date = {2006-01-01},
journal = {Report presented to the Comprehensive Assessment of Southern Hemisphere Humpback Whales, Hobart, Tasmania},
volume = {SC/A06/HW59},
number = {461},
keywords = {Atlantic, Atlantic Ocean, breeding grounds, DNA, dolphin, Humpback Whale, humpback whales, Indian Ocean, mitochondrial DNA, Oman, population, South Atlantic, Southern Hemisphere, stocks, whale, whales},
pubstate = {published},
tppubtype = {techreport}
}
Zemsky,V.A.
Extermination of populations of commercial whale species and its possible biological consequences Technical Report
no. 268, 2005.
Abstract | BibTeX | Tags: Arabian Sea, Atlantic, Atlantic Ocean, baleen whale, baleen whales, biological consequences, cetacean, cetaceans, depletion, extermination, mammals, marine, marine mammal, Marine mammals, oil, population, populations, Southern Hemisphere, Soviet whaling, sperm whale, status, whale, whales, whaling
@techreport{,
title = {Extermination of populations of commercial whale species and its possible biological consequences},
author = {Zemsky,V.A.},
year = {2005},
date = {2005-01-01},
number = {268},
pages = {249-259},
abstract = {Cetaceans inhabit practically all seas and oceans of the world and their role in ocean biocenoses is doubtless. Being the source of nutrition and technical resources - oil, meat, etc., - this numrous group of marine mammals had also substantial meaning for the man's economic activity. In a number of coastal regions, some whales are still an important, if not one, source of protein food. All cetaceans can be subdivided into two conditional categories: those which are caught for commerial needs and those which are not. The first group comprises practically all baleen whales, the size of most of which has no analogous in terrestrial mammals, and the sperm whale - the only one of toothed whales. All other cetaceans can be referred to the second group. They are much smaller in size, but more numerous and play not less important role in biocenoses. Some of them were of commercial value in the past and now have lost it almost completely. This brief review pursues three goals: firstly, to reveal the relationship between the population number of the commercial whales and whaling in a historical aspect; secondly, to determine the significance for the estimation of the current status of the large whales' populations of the materials, pulished in 1995, on the largest falsification of statistical data on the Soviet whaling operations in the Southern Hemisphere and in some regions of the Atlantic Ocean, including the Arabian Sea and equatorial waters; thirdly, to try to reveal possible consequences of the drastic depletion of number of the large commerical whales for the ocean biogeocenoses.},
keywords = {Arabian Sea, Atlantic, Atlantic Ocean, baleen whale, baleen whales, biological consequences, cetacean, cetaceans, depletion, extermination, mammals, marine, marine mammal, Marine mammals, oil, population, populations, Southern Hemisphere, Soviet whaling, sperm whale, status, whale, whales, whaling},
pubstate = {published},
tppubtype = {techreport}
}
Cetaceans inhabit practically all seas and oceans of the world and their role in ocean biocenoses is doubtless. Being the source of nutrition and technical resources - oil, meat, etc., - this numrous group of marine mammals had also substantial meaning for the man's economic activity. In a number of coastal regions, some whales are still an important, if not one, source of protein food. All cetaceans can be subdivided into two conditional categories: those which are caught for commerial needs and those which are not. The first group comprises practically all baleen whales, the size of most of which has no analogous in terrestrial mammals, and the sperm whale - the only one of toothed whales. All other cetaceans can be referred to the second group. They are much smaller in size, but more numerous and play not less important role in biocenoses. Some of them were of commercial value in the past and now have lost it almost completely. This brief review pursues three goals: firstly, to reveal the relationship between the population number of the commercial whales and whaling in a historical aspect; secondly, to determine the significance for the estimation of the current status of the large whales' populations of the materials, pulished in 1995, on the largest falsification of statistical data on the Soviet whaling operations in the Southern Hemisphere and in some regions of the Atlantic Ocean, including the Arabian Sea and equatorial waters; thirdly, to try to reveal possible consequences of the drastic depletion of number of the large commerical whales for the ocean biogeocenoses.
Witter,A.E.,Lewis,B.L.,Luther III,G.W.
Iron speciation in the Arabian Sea Journal Article
In: Deep-Sea Research Part II, vol. 47, no. 264, pp. 1517-1539, 2000.
Abstract | BibTeX | Tags: Arabian Sea, Atlantic, Atlantic Ocean, depth, marine, oxygen minimum, Upwelling
@article{,
title = {Iron speciation in the Arabian Sea},
author = {Witter,A.E.,Lewis,B.L.,Luther III,G.W.},
year = {2000},
date = {2000-01-01},
journal = {Deep-Sea Research Part II},
volume = {47},
number = {264},
pages = {1517-1539},
abstract = {Fe(III) speciation was measured in seawater collected as part of the United States Joint Global Ocean Flux (US JGOFS) Arabian Sea Process Study, Cruise TN045, March 14-April 10, 1995. The Fe-binding capacity of organic seawater ligands was measured in filtered seawater (<0.4 æm) collected from surface depths and throughout the oxygen minimum zone (OMZ). Seawaters from three stations on the southern line (S2, S9, and S11) were examined. Total Fe concentrations measured at the three sites ranged from: 1.25 ñ 0.21 nM to 1.30 ñ 0.01 nM (S2); 1.67 ñ 0.50 nM to 2.63 ñ 0.54 nM (S9); and 1.40 ñ 0.11 nM to 1.70 ñ 0.29 nM (S11). Cathodic stripping voltammetry (CSV) with 1-nitroso-2-napthol (1N2N) as the competitive ligand (pH 6.9) was used to determine conditional stability constants and Fe-binding ligand concentrations in seawater. Conditional stability constants for FeL complexes ranged from log KFeL = 21.6 ñ 0.1 to 22.5 ñ 0.9 at the three sites. Total ligand concentrations ranged from 1.47 ñ 0.06 nM to 6.33 ñ 1.16 nM over all sites, but increased by a factor of 2-3 from the surface to the oxygen minimum zone (OMZ), suggesting that Fe-binding ligands may be produced during organic matter degradation. Ligand concentrations were consistently higher than total iron concentrations at every site measured, with an average "excess" ligand concentration of 2.15 ñ 1.50 (n = 10). "Excess" ligand concentrations in the OMZ were 2 to 20 times higher than surface waters (upper 100 m). Formation-rate constants (kf ) and dissociation-rate constants (kd) between added Fe3+ and seawater ligands were measured using a kinetic approach at ambient seawater pH, allowing independent calculation of the conditional stability constant, since K = kf/kd. Using the kinetic approach, conditional stability constants ranged from log KFeL = 20.5 ñ 0.1 to 22.9 ñ 0.1. Although log K values are comparable in magnitude to those reported in the Pacific and Northwestern Atlantic Oceans, measured total ligand concentrations in the Arabian Sea are higher. This suggests that in areas that receive high Fe inputs through upwelling and/or atmospheric deposition, marine organisms may produce 'excess' ligands to keep Fe soluble in seawater for extended intervals. },
keywords = {Arabian Sea, Atlantic, Atlantic Ocean, depth, marine, oxygen minimum, Upwelling},
pubstate = {published},
tppubtype = {article}
}
Fe(III) speciation was measured in seawater collected as part of the United States Joint Global Ocean Flux (US JGOFS) Arabian Sea Process Study, Cruise TN045, March 14-April 10, 1995. The Fe-binding capacity of organic seawater ligands was measured in filtered seawater (<0.4 æm) collected from surface depths and throughout the oxygen minimum zone (OMZ). Seawaters from three stations on the southern line (S2, S9, and S11) were examined. Total Fe concentrations measured at the three sites ranged from: 1.25 ñ 0.21 nM to 1.30 ñ 0.01 nM (S2); 1.67 ñ 0.50 nM to 2.63 ñ 0.54 nM (S9); and 1.40 ñ 0.11 nM to 1.70 ñ 0.29 nM (S11). Cathodic stripping voltammetry (CSV) with 1-nitroso-2-napthol (1N2N) as the competitive ligand (pH 6.9) was used to determine conditional stability constants and Fe-binding ligand concentrations in seawater. Conditional stability constants for FeL complexes ranged from log KFeL = 21.6 ñ 0.1 to 22.5 ñ 0.9 at the three sites. Total ligand concentrations ranged from 1.47 ñ 0.06 nM to 6.33 ñ 1.16 nM over all sites, but increased by a factor of 2-3 from the surface to the oxygen minimum zone (OMZ), suggesting that Fe-binding ligands may be produced during organic matter degradation. Ligand concentrations were consistently higher than total iron concentrations at every site measured, with an average "excess" ligand concentration of 2.15 ñ 1.50 (n = 10). "Excess" ligand concentrations in the OMZ were 2 to 20 times higher than surface waters (upper 100 m). Formation-rate constants (kf ) and dissociation-rate constants (kd) between added Fe3+ and seawater ligands were measured using a kinetic approach at ambient seawater pH, allowing independent calculation of the conditional stability constant, since K = kf/kd. Using the kinetic approach, conditional stability constants ranged from log KFeL = 20.5 ñ 0.1 to 22.9 ñ 0.1. Although log K values are comparable in magnitude to those reported in the Pacific and Northwestern Atlantic Oceans, measured total ligand concentrations in the Arabian Sea are higher. This suggests that in areas that receive high Fe inputs through upwelling and/or atmospheric deposition, marine organisms may produce 'excess' ligands to keep Fe soluble in seawater for extended intervals.