Cuvier’s beaked whale tracks in Southern California

2019 ◽  
Vol 146 (4) ◽  
pp. 2939-2939
Author(s):  
Eric Snyder ◽  
Sean M. Wiggins ◽  
Simone Baumann-Pickering ◽  
John Hildebrand
Keyword(s):  
Southern California ◽  
Beaked Whale ◽  
Cuvier’S Beaked Whale

scholarly journals Antimicrobial Activity of Lactococcus lactis subsp. lactis Isolated from a Stranded Cuvier’s Beaked Whale (Ziphius cavirostris) against Gram-Positive and -Negative Bacteria

2021 ◽  
Vol 9 (2) ◽  
pp. 243
Author(s):  
Akihiko Suzuki ◽  
Miwa Suzuki
Keyword(s):  
Lactococcus Lactis ◽  
Marine Organism ◽  
Growth Conditions ◽  
Gas Production ◽  
Beaked Whale ◽  
Carbohydrate Utilization ◽  
Nisin Z ◽  
Ziphius Cavirostris ◽  
Cuvier’S Beaked Whale ◽  
Subtilis Subsp

In the present study, we isolated and characterized Lactococcus lactis (L. lactis) subsp. lactis from a female Cuvier’s beaked whale (Ziphius cavirostris) stranded in Shizuoka, Japan. Only five isolates (CBW1-5), grown on Lactobacilli de Man Rogosa Sharpe (MRS) agar plates prepared using 50% artificial seawater, were positive in L. lactis species-specific primer PCR. Their 16S rRNA sequences were highly similar to those of L. lactis subsp. lactis JCM 5805T. The Gram reaction, motility, gas production from glucose, catalase production, and growth conditions were consistent with those of the type strain. Additionally, carbohydrate utilization of the strains was consistent with previously reported marine organism-derived strains. The pH-neutralized cell-free culture supernatant of strain CBW2 inhibited the growth of Bacillus subtilis subsp. subtilis ATCC 6051 and Vibrio alginolyticus ATCC 17749, whereas protease treatment eliminated or diminished its inhibitory activity. The strain possesses a precursor of the nisin structural gene (nisA), which showed 100% homology with nisin Z, and nisin biosynthesis-related genes (nisB, nisC, nisT, nisP, nisF, nisI, and nisRK), suggesting that the strain produces a nisin-like substance. This study provides fundamental information on whale-derived L. lactis subsp. lactis which may be useful for reducing the carriage of B. subtilis subsp. subtilis and V. alginolyticus.

scholarly journals Diversity, relative density and structure of the cetacean community in summer months east of Great Abaco, Bahamas

2004 ◽  
Vol 84 (2) ◽  
pp. 469-474 ◽  
Author(s):  
Colin D. MacLeod ◽  
Nan Hauser ◽  
Hoyt Peckham
Keyword(s):  
Relative Density ◽  
Sperm Whale ◽  
Similar Species ◽  
Beaked Whale ◽  
Stenella Frontalis ◽  
Deep Diving ◽  
Feeding Niche ◽  
Order Of Magnitude ◽  
Cuvier’S Beaked Whale ◽  
Water Depths

Little is known about cetacean communities in the tropical and sub-tropical Atlantic. This paper describes the cetacean community found east of Great Abaco in the northern Bahamas (26·5°N) during summer months between 1998 and 2001. Nine species of cetaceans were recorded, which could be divided into two distinct groupings: firstly, ‘permanent’ species, which had relative sightings rates between 0·026–0·084 sightings per hour and which were recorded on many occasions in all years and most months; secondly, ‘sporadic’ species, which had relative sightings rates an order of magnitude lower (0·004–0·008 sightings per hour) and which were recorded on very few occasions. The ‘permanent’ species were the Stenella frontalis (Atlantic spotted dolphin), Kogia simus (the dwarf sperm whale), Mesoplodon densirostris (Blainville's beaked whale) and Ziphius cavirostris (Cuvier's beaked whale). These four species differed significantly in the depth of grid squares utilized (χ=20·25, df=9, P<0·01) suggesting that these species occupied four separate niches. Stenella frontalis dominated the surface feeding niche, while the remaining three deep-diving species segregated into different depth ranges. Kogia simus was the dominant species in water depths of less than 200 m, M. densirostris in water depths of 200 to 1000 m and Z. cavirostris in water depths of greater than 1000 m. The overall relative density (2·533 individuals per hour of effort) and diversity of species in the study area was relatively low and may relate to low levels of local productivity. It is hypothesized that the four ‘permanent’ species may competitively exclude ecologically similar species, resulting in a reduced number of species and that ‘sporadic’ species may only enter the study area during times of higher than usual productivity when the ‘permanent’ species are no longer able to dominate their individual niches.

Modeling the acoustic repertoire of Cuvier's beaked whale clicks

2020 ◽  
Vol 147 (5) ◽  
pp. 3605-3612
Author(s):  
Thomas Guilment ◽  
Natalia Sidorovskaia ◽  
Kun Li
Keyword(s):  
Beaked Whale ◽  
Cuvier’S Beaked Whale

scholarly journals Anthropogenic impact on a pregnant Cuvier’s beaked whale (Ziphius cavirostris) stranded in Brazil

2016 ◽  
Vol 9 (1) ◽  
Author(s):  
Guilherme Augusto Bortolotto ◽  
Igor Oliveira Braga Morais ◽  
Paulo Roberto Bahiano Ferreira ◽  
Maria do Socorro Santos dos Reis ◽  
Luciano Raimundo Alardo Souto
Keyword(s):  
Anthropogenic Impact ◽  
Beaked Whale ◽  
Ziphius Cavirostris ◽  
Cuvier’S Beaked Whale

Occurrence of Cuvier's beaked whales in the southern Adriatic Sea: evidence of an important Mediterranean habitat

2007 ◽  
Vol 87 (1) ◽  
pp. 359-362 ◽  
Author(s):  
Draško Holcer ◽  
Giuseppe Notarbartolo di Sciara ◽  
Caterina Maria Fortuna ◽  
Bojan Lazar ◽  
Vlado Onofri
Keyword(s):  
Adriatic Sea ◽  
Original Data ◽  
Beaked Whale ◽  
Conservation Implications ◽  
Adriatic Coast ◽  
Beaked Whales ◽  
Mediterranean Habitat ◽  
The Mediterranean ◽  
Cuvier’S Beaked Whale ◽  
Adriatic Basin

The intent of this work is to summarize the available knowledge on the appearance, identification and distribution of Cuvier's beaked whales (Ziphius cavirostris) in the Adriatic Sea through a review of historical data, inspection of natural history collections and collection of original data. In total, eleven occurrences are documented of Cuvier's beaked whale along the Adriatic coast with all records originating from the deep southern Adriatic basin. The number of recorded stranded Cuvier's beaked whales in the southern Adriatic represents about 3% of the recorded specimens in the entire Mediterranean. This percentage increases up to about 5% when considering only data collected after the first recorded stranding of the recent era in 1975. Comparing these percentages to the extent of the area relative to the Mediterranean, the proportion of occurrence of the total stranded Cuvier's beaked whales in the southern Adriatic ranged between the same to double of that of the entire Mediterranean Sea. Therefore, the southern Adriatic Sea should be considered as a potentially relevant habitat of the Cuvier's beaked whale. This hypothesis has clear conservation implications particularly in view of the adverse impact of sonar experiments, carried out by navies from several countries, on this species and should be further investigated. Finally, there is no evidence of the northern bottlenose whale (Hyperoodon ampullatus) ever having occurred in this part of the Mediterranean region.

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