Search engine for discovering works of Art, research articles, and books related to Art and Culture
ShareThis
Javascript must be enabled to continue!

Forty-year historical analysis of marine mammal strandings in Texas, from 1980 – 2019

View through CrossRef
Long-term trends in marine mammal stranding patterns can provide useful information on basic life history parameters, spatiotemporal distribution, natural and human-related mortality events, and potentially vulnerable populations. Between 1980 and 2019, a total of 5,301 marine mammal strandings were recorded in Texas, USA. In total, 23 species were identified, including 19 odontocete species (toothed whales and dolphins), 3 mysticete species (baleen whales), and 1 sirenian species (manatee). Common bottlenose dolphins (Tursiops truncatus) stranded most frequently (94%). Six unusual mortality events occurred with causes attributed to disease, harmful algal blooms, or unknown etiologies. Common bottlenose dolphin stranding events increased significantly in late winter/early spring, with an early onset in southern Texas, and had a consistent peak in March involving primarily calves and adults. Spatial analyses using kernel density estimation within seven coastal Texas stock management areas, delineated by the National Marine Fisheries Service, identified potential hotspots for common bottlenose dolphin strandings near higher human population density and deep water channels. Peak stranding density estimates in each stock area ranged from 0.32 – 4.6km-2 for presumed bay, sound and estuarine (BSE) stocks and 0.82km-2 for the presumed Western Gulf of Mexico Coastal Stock. Common bottlenose dolphin stranding events were positively male-biased, including a significantly higher number of stranded male fetuses and neonates, and sexual dimorphism was observed in total body length of adults, with significantly greater length in males. For all records where human interaction (HI) could be determined as ‘yes’ or ‘no’, 30% were positive for HI, with the highest proportion of HI events occurring in the central and southern-most BSE stock areas; however, it is unknown how many HI cases contributed to mortality. This longitudinal study provides a comprehensive overview of marine mammal stranding patterns in Texas and serves as a useful resource for stranding investigators and Gulf-wide natural resource managers.
Title: Forty-year historical analysis of marine mammal strandings in Texas, from 1980 – 2019
Description:
Long-term trends in marine mammal stranding patterns can provide useful information on basic life history parameters, spatiotemporal distribution, natural and human-related mortality events, and potentially vulnerable populations.
Between 1980 and 2019, a total of 5,301 marine mammal strandings were recorded in Texas, USA.
In total, 23 species were identified, including 19 odontocete species (toothed whales and dolphins), 3 mysticete species (baleen whales), and 1 sirenian species (manatee).
Common bottlenose dolphins (Tursiops truncatus) stranded most frequently (94%).
Six unusual mortality events occurred with causes attributed to disease, harmful algal blooms, or unknown etiologies.
Common bottlenose dolphin stranding events increased significantly in late winter/early spring, with an early onset in southern Texas, and had a consistent peak in March involving primarily calves and adults.
Spatial analyses using kernel density estimation within seven coastal Texas stock management areas, delineated by the National Marine Fisheries Service, identified potential hotspots for common bottlenose dolphin strandings near higher human population density and deep water channels.
Peak stranding density estimates in each stock area ranged from 0.
32 – 4.
6km-2 for presumed bay, sound and estuarine (BSE) stocks and 0.
82km-2 for the presumed Western Gulf of Mexico Coastal Stock.
Common bottlenose dolphin stranding events were positively male-biased, including a significantly higher number of stranded male fetuses and neonates, and sexual dimorphism was observed in total body length of adults, with significantly greater length in males.
For all records where human interaction (HI) could be determined as ‘yes’ or ‘no’, 30% were positive for HI, with the highest proportion of HI events occurring in the central and southern-most BSE stock areas; however, it is unknown how many HI cases contributed to mortality.
This longitudinal study provides a comprehensive overview of marine mammal stranding patterns in Texas and serves as a useful resource for stranding investigators and Gulf-wide natural resource managers.

Related Results

Stranded Marine Mammals on the South-Central Coast of Peru during El Niño 1997-98
Stranded Marine Mammals on the South-Central Coast of Peru during El Niño 1997-98
During the 1997-98 El Niño event, an assessment of marine mammal strandings was conducted from August 1997 to April 1998 between 15°22' and 15°27' S. This assessment encompassed 30...
DAMPAK TEKNOLOGI TERHADAP PROSES BELAJAR MENGAJAR
DAMPAK TEKNOLOGI TERHADAP PROSES BELAJAR MENGAJAR
DAFTAR PUSTAKAAditama, M. H. R., & Selfiardy, S. (2022). Kehidupan Mahasiswa Kuliah Sambil Bekerja di Masa Pandemi Covid-19. Kidspedia: Jurnal Pendidikan Anak Usia Dini, 3(...
Research on the dynamic co-evolution of the complex system of economy-innovation-environment of the marine industry in China
Research on the dynamic co-evolution of the complex system of economy-innovation-environment of the marine industry in China
IntroductionIn the context of accelerating the construction of a marine power, relying on scientific and technological innovation to drive the high-quality growth of the marine eco...
Development of Malaysian Mammal Online Database
Development of Malaysian Mammal Online Database
Malaysia is one of 17 mega diverse countries in the world. Despite this fact, there is still no online standalone database that focuses on Malaysian mammals. Creation of a mammali...
Vulnerability to climate change of United States marine mammal stocks in the western North Atlantic, Gulf of Mexico, and Caribbean
Vulnerability to climate change of United States marine mammal stocks in the western North Atlantic, Gulf of Mexico, and Caribbean
Climate change and climate variability are affecting marine mammal species and these impacts are projected to continue in the coming decades. Vulnerability assessments provide a fr...
Envisioning Originalism Applied to Bioethics Cases
Envisioning Originalism Applied to Bioethics Cases
Photo ID 123697425 © Alexandersikov | Dreamstime.com Abstract Originalism is an increasingly prevalent method for interpreting provisions of the US Constitution. It requires strict...
Typical Marine Ecological Disasters in China Attributed to Marine Organisms and Their Significant Insights
Typical Marine Ecological Disasters in China Attributed to Marine Organisms and Their Significant Insights
Owing to global climate change or the ever-more frequent human activities in the offshore areas, it is highly probable that an imbalance in the offshore ecosystem has been induced....

Back to Top