Length at sex transition in northern shrimp (Pandalus borealis) off West Greenland in relation to changes in temperature and stock size

Wieland, Kai

doi:10.1016/j.fishres.2004.04.003

Cited by 23 publications

(24 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The influence of environmental conditions (sediment, water masses and availability of prey), observed in our study in a short spatio-temporal range, should also be taken into account when long-term trends are analysed. The importance of large-scale factors on the population dynamics of deep-water crustaceans has already been suggested (Relini and Orsi Relini, 1987;Carbonell et al, 1999;Anderson, 2000;Lloret et al, 2001;wieland, 2004;Koeller et al, 2007;Maynou, 2008). In our study area two oceanographic scenarios, associated with macro and meso-scale climate regimes, could influence the population dynamics of European hake and red shrimp .…”

Section: Discussionsupporting

confidence: 52%

Variaciones espacio-temporales a pequeña escala en la dinámica poblacional y biología de la gamba blanca <i>Parapenaeus longirostris</i> (Crustacea: Decapoda) en el Mediterráneo occidental

Guijarro¹,

Massutí²,

Moranta³

et al. 2009

Sci. Mar.

View full text Add to dashboard Cite

SUMMARY: The deep-water rose shrimp Parapenaeus longirostris is a demersal decapod crustacean that is commercially exploited by trawl fleets. The present work compares its population dynamics, biology and condition in two locations (southern and north-western Mallorca in the Balearic Islands, western Mediterranean, separated by a distance of 120 km) with different environmental conditions and explores the relationships between the species and certain environmental factors. Six multidisciplinary bimonthly surveys were carried out during 2003 and 2004 in these two locations (between 150 and 750 m depth) in order to collect data on the demersal species with bottom trawl, the hydrography (temperature and salinity) with CTD casts, and trophic resources (zooplankton in the water column and suprabenthos with Bongo net and Macer-GIROQ sledge respectively) and sediments with a Shipeck dredge. The trawl fleets from both locations were monitored by monthly on board sampling and daily landings obtained from sales bills. Additional data was obtained from other trawl surveys. Temporal differences were detected both annually, with a decreasing trend over the last years in species abundance, and seasonally, in the biological indexes analysed. Bathymetric differences were also found in abundance, mean length, sex-ratio and condition of females. There were clear differences between the two locations studied, with higher abundance, condition and mean length and a lower length at first maturity for females in the north-western location. Trophic conditions could act as a link between geo-physical and biological changes. These short spatio-temporal differences could be due to the higher productivity found at this location, with higher density of preferred prey for the studied species together with adequate seafloor topography, sediment composition and hydrographical characteristics.Keywords: Parapenaeus longirostris, reproduction, fishery, spatio-temporal variations, hydrography, bottom characteristics, prey availability. RESUMEN:Variaciones espacio-temporales a pequeña escala en la dinámica poblacional y biología de la gamba blanca ParaPenaeus longirostris (Crustacea: Decapoda) en el Mediterráneo occidental. -La gamba blanca Parapenaeus longirostris es un crustáceo decápodo demersal explotado comercialmente por la flota de arrastre. Este trabajo tiene como objetivo comparar su dinámica poblacional, biología y condición en dos localidades (situadas al sur y al noroeste de Mallorca en las Islas Baleares, Mediterráneo occidental, separadas por 120 km de distancia) con diferentes condiciones ambientales y explorar las relaciones entre la especie y algunos factores ambientales. Se realizaron seis campañas multidisciplinares bimensuales durante 2003 y 2004 en estas dos localidades (entre 150 y 750 m de profundidad) para obtener datos de las especies demersales con arrastre de fondo, de la hidrografía (temperatura y salinidad) con registros de CTD, de los recursos tróficos (zooplancton de la columna de agua y suprabentos, con una red Bongo...

show abstract

Section: Discussionsupporting

confidence: 52%

Variaciones espacio-temporales a pequeña escala en la dinámica poblacional y biología de la gamba blanca <i>Parapenaeus longirostris</i> (Crustacea: Decapoda) en el Mediterráneo occidental

Guijarro¹,

Massutí²,

Moranta³

et al. 2009

Sci. Mar.

View full text Add to dashboard Cite

show abstract

“…Previous studies suggested that several factors affected sex changes in pandalid shrimps (Koeller et al, 2000;Chiba et al, 2003;Wieland, 2004;Skúladóttir et al, 2005). According to Wieland (2004) and Skúladóttir et al (2005), the change in size at sex transition in P. borealis was significantly correlated with temperature. Our study is consistent with their results.…”

Section: Discussionmentioning

confidence: 91%

Growth Pattern of Pandalus gracilis (Decapoda: Pandalidae) in the Southern Coastal Waters of Korea

Oh¹

2011

Fisheries and aquatic sciences

View full text Add to dashboard Cite

The population dynamics of Pandalus gracilis was investigated in the southeastern coastal area of Korea between May 1998 and April 2000. Of the 4,127 specimens, 57% were identified as females, 39% as males, and 4% as transitional hermaphrodites. The number of females was greater than that of males and transexuals. A significant correlation was observed between the number of transitional hermaphrodites and ambient seawater temperature. Growth parameters were estimated using the modified von Bertalanffy growth function model incorporating seasonal variation in growth using the program ELEFAN. Females grew faster and reached a larger sizeat-age than males (K=0.65/y and L ∞ =17.86 mm carapace length [CL] for females; K=0.51/y and L ∞ =14.70 mm CL for males). Mean size and age (95% confidence limits) at sex transition, calculated from growth parameters, were 7.07 mm carapace length and 1.05 years, respectively. The reproductive strategies of pandalid shrimps are discussed in terms of the type of sex transition.

show abstract

“…Atlantic cod, shrimp, char). These opportunities are being promoted by the Home Role Government (HRG), opening Greenland further to industrial development in hope of working towards eventual financial independence from Denmark (Wieland 2004, Arnason 2007, Nuttall 2008.…”

Section: Introductionmentioning

confidence: 99%

Climate change vulnerability and adaptation in resource dependent communities: a case study from West Greenland

Ford¹,

Goldhar²

2012

Clim. Res.

View full text Add to dashboard Cite

Length at sex transition in northern shrimp (Pandalus borealis) off West Greenland in relation to changes in temperature and stock size

Cited by 23 publications

References 10 publications

Variaciones espacio-temporales a pequeña escala en la dinámica poblacional y biología de la gamba blanca <i>Parapenaeus longirostris</i> (Crustacea: Decapoda) en el Mediterráneo occidental

Variaciones espacio-temporales a pequeña escala en la dinámica poblacional y biología de la gamba blanca <i>Parapenaeus longirostris</i> (Crustacea: Decapoda) en el Mediterráneo occidental

Growth Pattern of Pandalus gracilis (Decapoda: Pandalidae) in the Southern Coastal Waters of Korea

Climate change vulnerability and adaptation in resource dependent communities: a case study from West Greenland

Contact Info

Product

Resources

About