scholarly journals Coherent trends in contiguous survey time-series of major ecological and commercial fish species in the Gulf of Maine ecosystem

2009 ◽  
Vol 67 (1) ◽  
pp. 26-40 ◽  
Author(s):  
Janet A. Nye ◽  
Alida Bundy ◽  
Nancy Shackell ◽  
Kevin D. Friedland ◽  
Jason S. Link
Keyword(s):  
United States ◽  
Time Series ◽  
Fish Species ◽  
Gulf Of Maine ◽  
Atlantic Cod ◽  
Ecological Factors ◽  
The United States ◽  
Common Species ◽  
Total Biomass ◽  
Commercial Fish

AbstractNye, J. A., Bundy, A., Shackell, N., Friedland, K. D., and Link, J. S. 2010. Coherent trends in contiguous survey time-series of major ecological and commercial fish species in the Gulf of Maine ecosystem. – ICES Journal of Marine Science, 67: 26–40. Fish are often delineated into distinct population or stock units that reflect human institutional borders more than ecological factors. In the Northwest Atlantic, there are many species in the broader Gulf of Maine area (GOMA), yet the area is surveyed and managed for the most part in the south by the United States and in the north by Canada. Biomass time-series of 19 representative fish species and total biomass from 7 different surveys conducted by the United States and Canada in the GOMA are compared. All species showed coherent trends in relative biomass across at least two survey time-series, and in many species a single trend could describe all time-series trends accurately. For instance, Canadian and the US time-series of Atlantic cod, Atlantic herring, haddock, thorny skate, and goosefish had comparable trends. Conversely, species such as longhorn sculpin and spiny dogfish showed differing survey time-series trends and asynchronous event timing, suggesting that their population dynamics differ spatially. Collectively, the results demonstrate the value of comparing time-series for common species from contiguous ecosystems and elucidate the relative importance of environmental and fishing factors on each species.

scholarly journals Time-series analysis for porcine reproductive and respiratory syndrome in the United States

PLoS ONE ◽  
2018 ◽  
Vol 13 (4) ◽  
pp. e0195282 ◽  
Author(s):  
Andréia Gonçalves Arruda ◽  
Carles Vilalta ◽  
Pere Puig ◽  
Andres Perez ◽  
Anna Alba
Keyword(s):  
United States ◽  
Time Series ◽  
Time Series Analysis ◽  
The United States ◽  
Series Analysis

scholarly journals 533. Scaling Pediatric Access to Fecal Microbiota Transplantation in the United States: A Time-Series Geospatial Analysis

2018 ◽  
Vol 5 (suppl_1) ◽  
pp. S197-S197
Author(s):  
Pratik Panchal ◽  
Stacy Kahn ◽  
Caroline Zellmer ◽  
Zain Kassam ◽  
Majdi Osman ◽  
...  
Keyword(s):  
United States ◽  
Time Series ◽  
Fecal Microbiota Transplantation ◽  
The United States ◽  
Fecal Microbiota ◽  
Geospatial Analysis

scholarly journals Food Deliveries at Swallow-Tailed Kite Nests in Southern Florida

The Condor ◽  
2004 ◽  
Vol 106 (1) ◽  
pp. 171-176 ◽  
Author(s):  
Kenneth D. Meyer ◽  
Steven M. McGehee ◽  
Michael W. Collopy
Keyword(s):  
United States ◽  
The United States ◽  
Total Biomass ◽  
Incubation Stage ◽  
La Florida ◽  
Southern Florida ◽  
Insect Biomass ◽  
Prey Items

Abstract We studied the diets of nesting Swallow-tailed Kites (Elanoides forficatus) at eight nests in 1988–1989 in southern Florida, where the species reaches its greatest abundance in the United States. Males fed females during the incubation stage an average of 2.1 ± 0.8 times per day. The adults averaged 10.9 ± 4.5 deliveries daily during the nestling stage, and 10.3 ± 12.5 deliveries to young daily following nest departure. Vertebrates comprised 97% of the biomass for the 1092 identifiable prey items delivered to nests. Frogs accounted for 56%, birds 30%, and reptiles 11% of all prey. Numerically, frogs made up 83% of the reptile and amphibian prey. The relative proportions of prey types varied substantially among nests within years, and significantly more snakes and insects were delivered in 1989. Total biomass delivered in 1988 did not differ from that in 1989. Bird biomass, however, was greater in 1988 and insect biomass was greater in 1989. Anoles and snakes were brought to nests in larger numbers during the morning and evening hours; and birds were delivered mainly from midmorning to midafternoon. Entregas de Alimentos en Nidos de Elanoides forficatus en el Sur de Florida Resumen. Durante 1988 y 1989 estudiamos la dieta de los polluelos de Elanoides forficatus en ocho nidos localizados en el sur de la Florida, donde la especie alcanza su mayor abundancia de nidificacion dentro de los Estados Unidos. Durante la incubación, los machos alimentaron a las hembras un promedio de 2.1 ± 0.8 veces por día. Durante la etapa de polluelos, los adultos hicieron un promedio de 10.9 ± 4.5 entregas diarias y un promedio de 10.3 ± 12.5 entregas diarias después de abandonar el nido. Los vertebrados comprendieron el 97% de la biomasa de las 1092 presas identificables entregadas en los nidos. Las ranas constituyeron el 56%, las aves el 30% y los reptiles el 11% del total de las presas. Numéricamente, las ranas constituyeron el 83% de la herpetofauna depredada. Las proporciones relativas de los tipos de presa variaron substancialmente entre los nidos a través de los años, y considerablemente más serpientes e insectos fueron entregados en 1989. La biomasa total entregada durante 1988 no difirió de la observada en 1989. Sin embargo, la biomasa de las aves fue mayor en 1988, mientras que la de los insectos fue mayor en 1989. Las lagartijas y serpientes fueron entregadas a los nidos en mayor cantidad durante las horas de la mañana y de la tarde, mientras que las aves fueron entregadas principalmente desde la mitad de la mañana hasta la mitad de la tarde.

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