Hydrographic conditions affecting two fishing grounds of Mallorca island (Western Mediterranean): during the IDEA Project (2003–2004)

López-Jurado, José Luís; Marcos, Marta; Monserrat, Sebastià

doi:10.1016/j.jmarsys.2007.03.007

Cited by 94 publications

(47 citation statements)

References 11 publications

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“…1) during late autumn (29 November to 18 December 2009) and summer (11 to 30 July 2010). The main objectives of the surveys were to determine the taxonomic composition, abundance, structure and vertical distribution of the meroplanktonic community at two stations located over 200 m and 900 m depth (shelf break and middle slope, respectively), off the northwest and south of Mallorca Island (Balearic and Algerian sub-basin, respectively), each site representing different environmental conditions (Pinot et al 2002, López-Jurado et al 2008.…”

Section: Methodsmentioning

confidence: 99%

Larval stages of crustacean species of interest for conservation and fishing exploitation in the western Mediterranean

Torres¹,

Santos²,

Alemany³

et al. 2013

Sci. Mar.

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SUMMARY: Decapod crustaceans are the main target species of deep water bottom trawl fisheries in the western Mediterranean. Despite their importance for fisheries and conservation, little is known about their larval development, especially in the case of deep water species. In this paper we present new information on the occurrence and morphology of larval stages for some species of commercial interest based on samples collected off the Balearic Islands. Mesozooplankton sampling was carried out using depth-stratified sampling devices at two stations located on the continental shelf break and middle slope, in the northwest and south of Mallorca in late autumn 2009 and summer 2010. We describe in detail the second mysis stage of the red shrimp Aristeus antennatus, not previously known, and the first larval stage of the slipper lobster Scyllarides latus, poorly described almost a hundred years ago. We also report the second finding of larvae of the spider crab Maja squinado and the first capture from the field of larval stages of the rose shrimp Parapenaeus longirostris and slipper lobster in the Mediterranean.

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Section: Methodsmentioning

confidence: 99%

Larval stages of crustacean species of interest for conservation and fishing exploitation in the western Mediterranean

Torres¹,

Santos²,

Alemany³

et al. 2013

Sci. Mar.

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“…The main objective of the surveys was to determine the taxonomic composition, abundance, structure and vertical distribution of the mero-planktonic community at two stations located off the north-west and south of Mallorca (Balearic and Algerian subbasin, respectively). The sampling sites were located over 200 and 900 m depth (shelf break and middle slope, respectively) and present different environmental conditions (Pinot et al 2002;López-Jurado et al 2008). At the southern station of Mallorca, the upper slope is irregular, with numerous small canyons, while it is smooth in the northern station (Acosta et al 2002).…”

Section: Samplingmentioning

confidence: 99%

Larval stages of the deep-sea lobster Polycheles typhlops (Decapoda, Polychelida) identified by DNA analysis: morphology, systematic, distribution and ecology

et al. 2014

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A total of 25 specimens of Eryoneicus larvae were collected near the Balearic Archipelago (Western Mediterranean Sea) in 2009 and 2010. Detailed morphological examination indicated that the smallest individual corresponded with the first zoea (ZI) stage of Polycheles typhlops hatched from a berried female by Guerao and Abelló (J Nat Hist 30(8): [1179][1180][1181][1182][1183][1184] 1996). Only two species of deep-sea polychelid lobster, namely P. typhlops and Stereomastis sculpta, are known to occur in the Mediterranean. Genetic distance comparisons and phylogenetic analysis of the mitochondrial 16S rDNA and Cox I genes of this early larva together with adults from several Polycheles and Stereomastis species allowed us to assign it to P. typhlops. This is the first wild-caught larval stage of a polychelid lobster being identified using molecular techniques. The remaining specimens were attributed to zoeal stages II-III and decapodid stage based on morphological comparison. The arrangement of spines along the anterior part of the middorsal line (R, 1, 1, 1, 2, C 1 ), characteristic of the former species E. puritanii, discriminates these larvae from other Eryoneicus found in the Mediterranean. The clear presence of epipods on the third maxilliped and pereiopods of the decapodid stage gives further support to the identification of E. puritanii as the larval stages of P. typhlops. Additionally, information on the ecology of these larvae, their abundances during different seasons, as well as their bathymetric distribution is reported.

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“…The hydrographic conditions of the Islands have been studied widely (e.g. Pinot et al, 2002;López-Jurado et al, 2008), with the Balearic channels described as important passages for the exchange between the cooler, more saline waters of the BsB and the warmer, fresher waters of the AsB. The temporal variability in hydrodynamic conditions of the area is mainly conditioned by the Northern Current (NC), which carries waters formed during winter in the Gulf of Lions (western Mediterranean Intermediate waters, wIw) southwards along the continental slope, and reaches the channel between the Iberian coast and the Islands.…”

Section: Study Areamentioning

confidence: 99%

“…Samples of sediments, zooplankton in the water column and suprabenthos were obtained in both locations (CA and SO) with a Shipeck grab, Bongo net and Macer-GIROQ suprabenthic sledge respectively, at around 150, 350, 675 and 775 m depth. Further information of hydrological and trophic sampling during the SIS can be found in Cartes et al (2008) and López-Jurado et al (2008).…”

Section: Environmental Parametersmentioning

confidence: 99%

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.

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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...

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Hydrographic conditions affecting two fishing grounds of Mallorca island (Western Mediterranean): during the IDEA Project (2003–2004)

Cited by 94 publications

References 11 publications

Larval stages of crustacean species of interest for conservation and fishing exploitation in the western Mediterranean

Larval stages of crustacean species of interest for conservation and fishing exploitation in the western Mediterranean

Larval stages of the deep-sea lobster Polycheles typhlops (Decapoda, Polychelida) identified by DNA analysis: morphology, systematic, distribution and ecology

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

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