Habitat suitability index models for the juvenile soles, Solea solea and Solea senegalensis, in the Tagus estuary: Defining variables for species management

Vinagre, Catarina; Fonseca, Vanessa F.; Cabral, Henrique N.; Costa, M. J.

doi:10.1016/j.fishres.2006.07.011

Cited by 106 publications

(80 citation statements)

References 45 publications

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“…temperatures, but also to unfavourable environmental factors, such as decreased abundance of prey and the reduction in day length, which affect feeding success (Amara 2003, Link et al 2005, Rijnsdorp and Witthames 2005, Vinagre et al 2006, Félix et al 2011. The formation of opaque and translucent rings in the sagittal otoliths determined here appears to be closely associated with seawater temperature (Nash andGeffen 2005, Laffargue et al 2007).…”

Section: Figura 4 Curva De Crecimiento Estacional De Von Bertalanffymentioning

confidence: 61%

“…En el caso del lenguado, que es un depredador visual, la interacción de la disminución de la disponibilidad de alimento y de la duración de las horas de luz solar durante el invierno puede reducir el acceso a los recursos alimenticios (Gibson 2005). En el caso de la platija, la disminución del crecimiento durante el invierno no está relacionada única-mente con las bajas temperaturas del agua, sino también con factores medioambientales desfavorables, como la disminución de la abundancia de presas y la reducción de las horas de luz solar, que afectan al éxito alimenticio (Amara 2003, Link et al 2005, Rijnsdorp y Witthames 2005, Vinagre et al 2006, Félix et al 2011.…”

Section: Figura 4 Curva De Crecimiento Estacional De Von Bertalanffyunclassified

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Validation of age determination methods and growth studies of the sand sole Pegusa lascaris (Soleidae) from the eastern-central Atlantic

Pajuelo

Nespereira

2011

Cienc. Mar.

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ABSTRACT. The age and growth of the sand sole Pegusa lascaris from the Canarian Archipelago were studied from 2107 fish collected between January 2005 and December 2007. To find an appropriate method for age determination, sagittal otoliths were observed by surface-reading and frontal section and the results were compared. The two methods did not differ significantly in estimated age but the surface-reading method is superior in terms of cost and time efficiency. The sand sole has a moderate life span, with ages up to 10 years recorded. Individuals grow quickly in their first two years, attaining approximately 48% of their maximum standard length; after the second year, their growth rate drops rapidly as energy is diverted to reproduction. Males and females show dimorphism in growth, with females reaching a slightly greater length and age than males. Von Bertalanffy, seasonalized von Bertalanfy, Gompertz, and Schnute growth models were fitted to length-at-age data. Akaike weights for the seasonalized von Bertalanffy growth model indicated that the probability of choosing the correct model from the group of models used was >0.999 for males and females. The seasonalized von Bertalanffy growth parameters estimated were: L ∞ = 309 mm standard length, k = 0.166 yr Key words: Pegusa lascaris, age determination, otoliths, growth models. RESUMEN.Se estudió la edad y el crecimiento del lenguado de arena Pegusa lascaris de las Islas Canarias a partir de 2107 ejemplares capturados entre enero de 2005 y diciembre de 2007. Para determinar el método de estimación de la edad, se hicieron lecturas de los otolitos sagita enteros y de la sección frontal y se compararon los dos métodos. Ambos métodos no variaron significativamente en la estimación de la edad, pero el método de la lectura del otolito entero es superior en términos de costo y tiempo. El lenguado de arena presenta un ciclo de vida moderado; se han registrado edades de 10 años. Los individuos crecen rápidamente durante los primeros dos años, cuando alcanzan aproximadamente el 48% de su longitud; después del segundo año, su crecimiento se ralentiza considerablemente debido a que invierten su energía en la reproducción. Se observó dimorfismo en el crecimiento entre machos y hembras: las hembras presentaron longitudes y edades ligeramente superiores a las de los machos. Para describir el crecimiento, los modelos de von Bertalanffy (simple y estacional), el de Gompertz y el de Schnute se ajustaron a los datos de talla y edad. Los pesos de Akaike para el modelo estacional de von Bertalanffy indicaron que la probabilidad de elegir el modelo correcto fue >0.999 para machos y hembras. Los parámetros estimados de la ecuación de crecimiento estacional de von Bertalanffy fueron los siguientes: L ∞ = 309 mm longitud estándar, k = 0.166 año , t 0 = -1.653 año, C = 0.820 y ts = 0.691 para las hembras. Se observó una alta correlación entre la longitud estándar y el radio de los otolitos (R 2 = 0.902), que fue descrita mediante una función potencial (a = 85.11, v = 0.906).Palabras cl...

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Section: Figura 4 Curva De Crecimiento Estacional De Von Bertalanffymentioning

confidence: 61%

Section: Figura 4 Curva De Crecimiento Estacional De Von Bertalanffyunclassified

Validation of age determination methods and growth studies of the sand sole Pegusa lascaris (Soleidae) from the eastern-central Atlantic

Pajuelo

Nespereira

2011

Cienc. Mar.

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“…Nevertheless, knowledge on the relative value of each habitat will be crucial for prioritizing management and/or conservation actions that affect fish nurseries for this and other species (Johnston et al 2002, Vinagre et al 2006, 2008 in a global change scenario. Information on the ability of species to tolerate short-term temperature elevations and/or acclimatize to long-term heat elevation is fundamental for the understanding of the effect of climate change upon biota.…”

Section: Discussionmentioning

confidence: 99%

Impact of climate change on coastal versus estuarine nursery areas: cellular and whole-animal indicators in juvenile seabass Dicentrarchus labrax

Vinagre

Madeira²,

Narciso³

et al. 2012

Mar. Ecol. Prog. Ser.

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The effects of thermal conditions of coastal and estuarine nurseries, both in the present and in the near future, on juvenile fish were compared. The response of the European seabass Dicentrarchus labrax was investigated through a long-term experiment in captivity, where 0-group juveniles were exposed to temperatures that reflect the average summer temperature that they encounter in coastal (18°C) and estuarine nurseries (24°C), and also the temperature that they endure inside estuaries during heat waves (28°C). The combined expression of 2 heat shock proteins (Hsc/Hsp70) in white muscle was assessed throughout a long-term experiment (30 d). Growth and condition were determined at the end of the experiment. Hsc/Hsp70 levels were constant throughout the first 15 d at 18°C, and then decreased steeply. At 24 and 28°C, Hsc/Hsp70 levels increased considerably after 15 d, particularly at 28°C, and decreased at the end of the experiment. Daily growth was 0.20 mm d −1 at 18°C, it increased to 0.34 mm d −1 at 24°C, and was lowest at 28°C, at 0.16 mm d −1 . Condition, assessed by Fulton's K, was 0.95 at 18°C, 1.00 at 24°C and 0.83 at 28°C. The Hsc/Hsp70 increase at 24 and 28°C is an indication that molecular reparation processes were underway. The peak growth and condition values registered at 24°C suggest that estuarine average summer temperatures are more bene ficial for this species' juveniles than coastal temperatures. Acclimation was observed at 24°C, yet growth rates and condition values indicate that prolonged heat waves (28°C) may result in lower fitness.

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“…A Habitat Suitability Index (HSI) is a conceptual model that relates measurable environmental variables to the suitability of a site for a species (Brooks, 1997;Vinagre et al, 2006;Vincenzi et al, 2007). HSI values are a combination of environmental variables, each of them represented by a suitability index (SI) and typically scaled from 0 (unsuitable habitat) to 1 (suitable habitat).…”

Section: Hsi Datamentioning

confidence: 99%

Predicting giant panda habitat with climate data and calculated habitat suitability index (HSI) map

Jiang

et al. 2013

Met. Apps

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ABSTRACT:Climate data are particularly important in Species Distribution Models (SDMs) that are used for predicting global warming consequences on plant and animal distributions. A number of the plants and animals, especially the endangered species such as the giant panda (Ailuropoda melanolecua), are limited in their scope of distribution due to climate changes. Thus, predicting the habitat quality distribution under climate change is important for protecting these species. In this paper the existing and potential habitats of the giant pandas are used as the study area, the calculated Habitat Suitability Index ( 64% of the unsuitable habitat in the study area will become suitable, while about 1.5% of the suitable habitat will turn into unsuitable habitat. This leads to an increase of the suitable habitat area on the whole from 2050 to 2099: about 3.43% of the unsuitable habitat will become suitable, while about 6.59% of the suitable habitat will turn into unsuitable habitat, which leads to a decrease of the suitable habitat area on the whole. From the suitable habitat distribution, it can be seen that the suitable habitat of giant pandas gradually moves north under projected global climate change.

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Habitat suitability index models for the juvenile soles, Solea solea and Solea senegalensis, in the Tagus estuary: Defining variables for species management

Cited by 106 publications

References 45 publications

Validation of age determination methods and growth studies of the sand sole Pegusa lascaris (Soleidae) from the eastern-central Atlantic

Validation of age determination methods and growth studies of the sand sole Pegusa lascaris (Soleidae) from the eastern-central Atlantic

Impact of climate change on coastal versus estuarine nursery areas: cellular and whole-animal indicators in juvenile seabass Dicentrarchus labrax

Predicting giant panda habitat with climate data and calculated habitat suitability index (HSI) map

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