Ecological Aspects of Smaller Cetaceans, with Emphasis on the Striped Dolphin (Stenella coeruleoalba)

1975 ◽  
Vol 32 (7) ◽  
pp. 1069-1072 ◽  
Author(s):  
Masaharu Nishiwaki
Keyword(s):  
Population Size ◽  
Stenella Coeruleoalba ◽  
Striped Dolphin ◽  
Ecological Aspects ◽  
Environmental Fluctuations

The striped dolphin (Stenella coeruleoalba) is captured by drive fisheries as it migrates along the coast of Japan. The largest school of striped dolphins captured contained 2838 individuals. Annual catches have reached approximately 20,000 striped dolphins, and it is estimated that the population fished must number 400,000–600,000 animals. Recent variations in catch levels have resulted from economic and environmental fluctuations, not from a decrease in population size.

Marine mammals are natural hosts of Oceanivirga salmonicida, a bacterial pathogen of Atlantic salmon

2020 ◽  
Vol 139 ◽  
pp. 161-174
Author(s):  
R Palmer ◽  
GTA Fleming ◽  
S Glaeser ◽  
T Semmler ◽  
A Flamm ◽  
...  
Keyword(s):  
16S Rrna ◽  
Atlantic Salmon ◽  
16S Rrna Gene ◽  
Marine Mammals ◽  
Rrna Gene ◽  
Bacterial Disease ◽  
Common Dolphin ◽  
Stenella Coeruleoalba ◽  
Striped Dolphin ◽  
Natural Hosts

During 1992 and 1993, a bacterial disease occurred in a seawater Atlantic salmon Salmo salar farm, causing serious mortalities. The causative agent was subsequently named as Oceanivirga salmonicida, a member of the Leptotrichiaceae. Searches of 16S rRNA gene sequence databases have shown sequence similarities between O. salmonicida and uncultured bacterial clones from the digestive tracts of marine mammals. In the current study, oral samples were taken from stranded dolphins (common dolphin Delphinus delphis, striped dolphin Stenella coeruleoalba) and healthy harbour seals Phoca vitulina. A bacterium with growth characteristics consistent with O. salmonicida was isolated from a common dolphin. The isolate was confirmed as O. salmonicida, by comparisons to the type strain, using 16S rRNA gene, gyrB, groEL, and recA sequence analyses, average nucleotide identity analysis, and MALDI-TOF mass spectrometry. Metagenomic analysis indicated that the genus Oceanivirga represented a significant component of the oral bacterial microbiomes of the dolphins and seals. However, sequences consistent with O. salmonicida were only found in the dolphin samples. Analyses of marine mammal microbiome studies in the NCBI databases showed sequences consistent with O. salmonicida from the common dolphin, striped dolphin, bottlenose dolphin Tursiops truncatus, humpback whale Megaptera novaeangliae, and harbour seal. Sequences from marine environmental studies in the NCBI databases showed no sequences consistent with O. salmonicida. The findings suggest that several species of marine mammals are natural hosts of O. salmonicida.

scholarly journals Isolation and characterization of metallothionein from kidney of striped dolphin, Stenella coeruleoalba.

1986 ◽  
Vol 50 (11) ◽  
pp. 2881-2885 ◽  
Author(s):  
Young-Tack KWOHN ◽  
Sunao YAMAZAKI ◽  
Akira OKUBO ◽  
Etsuro YOSHIMURA ◽  
Ryo TATSUKAWA ◽  
...  
Keyword(s):  
Stenella Coeruleoalba ◽  
Striped Dolphin ◽  
Isolation And Characterization

Food of striped dolphin, Stenella coeruleoalba, in the Ligurian Sea

1993 ◽  
Vol 73 (3) ◽  
pp. 571-578 ◽  
Author(s):  
M. Würtz ◽  
D. Marrale
Keyword(s):  
Mediterranean Sea ◽  
Western Mediterranean ◽  
Important Food ◽  
Ligurian Sea ◽  
Stenella Coeruleoalba ◽  
Striped Dolphin ◽  
Western Mediterranean Sea ◽  
Bony Fishes ◽  
Food Species ◽  
Ligurian Coast

The stomachsof 23 striped dolphins (Stenella coeruleoalba Meyen, 1833, Cetacea), stranded along the Ligurian coast (western Mediterranean Sea), contained 32 species of cephalopods, crustaceans and fishes, totalling an estimated 2,723 prey specimens representing about 36 kg in weight. Cephalopods and bony fishes were equally important in the diet (50%). Todarodes sagittatus (34.5%) and Micromesistius poutassou (25.9%) were found to be the most important food species. Other species belonging to six cephalopod families, three crustacean families and nine bony fish families, contributed to the diet with variable numbers, weights, and occurrences, demonstrating the opportunistic character of striped dolphin feeding.

Merkel cells immunohistochemical study in striped dolphin (Stenella coeruleoalba) skin

2019 ◽  
Vol 56 ◽  
pp. 1-6 ◽  
Author(s):  
E.R. Lauriano ◽  
S. Pergolizzi ◽  
M. Aragona ◽  
N. Spanò ◽  
M.C. Guerrera ◽  
...  
Keyword(s):  
Immunohistochemical Study ◽  
Merkel Cells ◽  
Stenella Coeruleoalba ◽  
Striped Dolphin
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