Gustavo A Lovrich

National Scientific and Technical Research Council | conicet · CADIC - Centro Austral de Investigaciones cientificas

The use of genetic tools has a relevant role in fishery resource management and conservation, for example , when used in species delimitation. Morphological variation can occur as an adaptative or plastic response to environmental variation, and therefore, be mistakenly used as a criterion to delimit species. Particularly, Lithodes santolla and Lih...

La plataforma submarina y la costa atlántica argentina durante los últimos 22.000 años El ascenso del nivel del mar en la costa de la provincia de Buenos Aires La corriente de Malvinas.Ramas y frentes oceánicos en el mar patagónico El impacto del Plata sobre el océano Atlántico Efecto de la radiación ultravioleta sobre los ecosistemas acuáticos Atr...

Underwater sampling needs to strike a balance between time-efficient and standardized data that allow comparison with different areas and times. The roving diver survey involves divers meandering and actively searching for species and has been useful for producing fish species lists but has seldom been implemented for benthic taxa. In this study, w...

High-latitude marine environments, such as the Beagle Channel, are highly vulnerable to modifications related to climate change and anthropogenic impacts, which can rapidly affect the ecological attributes of plankton communities and thus alter ecosystem trophodynamics. This study compares the mesozooplankton community structure in the inner and ou...

The squat lobster Munida gregaria is an ecologically relevant species in southern South American waters. Nonetheless, fundamental topics regarding its larval ecology remain poorly studied, especially at the southern limit of its distribution area. Here, we investigated the abundance, size, and spatial distribution of M. gregaria larval stages (zoea...

The Southern King Crab -SKC- (Lithodes santolla) is a highly demanded gastronomic resource in South America, specially from truism. As many others crab fisheries, the current state of L. santolla's population in the Beagle Chanel is compromised, since the production of new recruits is below its potential. In this sense and in order to overcome this...

The female reproductive output and potential recruitment were studied in three Argentinean southern king crab (Lithodes santolla and Lithodes confundens) stocks: in the Beagle Channel (BC), under an artisanal fishery pressure since 1930; in the San Jorge Gulf (SJG), under 10-years industrial fishing exploitation; and off the Atlantic coast of Isla...

DOWNLOAD IT FREE OF CHARGE: https://authors.elsevier.com/c/1c-xO_1px1I2xV Coastal, semi-enclosed aquatic ecosystems of sub-polar regions surrounded by continental glaciers are among the most sensitive environments to climate change. The Beagle Channel (Argentina-Chile, ∼55°S, 71°-66°W), which is part of the Patagonian Cold Estuarine System of aust...

The Southern King Crab Lithodes santolla supports one of the most important fisheries in southern South America. Lecithotrophic larvae hatch over an extended period, in which brooding females can be fished, but must be discarded due to regulations. Larval mortality by female fishing was evaluated. Samples of newly hatched zoea I were obtained the d...

This is the ninth volume of a ten- volume series on The Natural History of the Crustacea. Our volume examines Fisheries and Aquaculture, and it follows Volume 1: Functional Morphology and Diversity, Volume 2: Life Styles and Feeding Biology, Volume 3: Nervous Systems and Control of Behavior, Volume 4: Physiology, Volume 5: Life Histories, Volume 6:...

En el menú se anuncian monstruos marinos, bosques animales, anfípodos y delfines, entre otras delicias. Recorreremos los principales métodos de investigación que se utilizan para estudiar desde los organismos microscópicos hasta los mamíferos marinos que habitan esta curiosa zona. A su vez, conoceremos los instrumentos políticos que hacen posible l...

Lobo fue un biólogo marino argentino comprometido con la conserva ción de las pesquerías, una excelente persona y un gran profesional. Su forma de vida era hacer del trabajo un placer. Con humildad, generosidad y respeto, con una actitud de compartir saberes, aprendiendo siempre del otro, guió y estimuló la formación de varios investigadores en Sud...

La identificación y clasificación de los organismos que habi tan los fondos del Área Marina Protegida Namuncurá - Banco Burdwood (AMPNBB) y sus alrededores demuestran que allí existe una gran diversidad de especies que provienen de distintos sectores oceánicos (Pacífico, Atlántico y aguas polares). Esta confluencia de especies lo convierte en un am...

Hasta el 2013, Argentina tenía unas 50 áreas protegidas marino-costeras. La creación en ese año del Área Marina Protegida Namuncurá - Banco Burdwood (AMPNBB) en aguas nacionales avanzó en el conocimiento local a través de 16 campañas científicas bajo la gestión de la Jefatura de Gabinete de Ministros. El AMP tuvo que adecuarse al Sistema Nacional d...

The southern king crab (SKC) Lithodes santolla is an important commercial species in southern South America. Fishing pressure has caused the deterioration of its stocks. Currently, culture techniques are being developed for producing SKC juveniles to enhance the natural population and to recover the fishing stock. Therefore, it is necessary to know...

King crab fisheries constitute a highly profitable marine business in southern South America, where five fisheries for lithodids currently exist, two in Chile and three in Argentina. These fisheries mainly target Lithodes santolla, however in some localities the harvested morphospecies is Lithodes confundens, and in some others it constitutes a mix...

In recent years, remote exploration around the Scotia Arc and waters off the Antarctic Peninsula yielded new records of Lithodidae suggesting our knowledge on their distribution is biased by our ability to sample areas with difficult access. In the present study, we used molecular methods to identify and report the occurrence of the deep-sea king c...

The southern king crab Lithodes santolla experiences low temperatures and unpredictable food conditions, and is under variable fishing pressure. To compare the reproductive investment of females, crabs were captured from three sites (Beagle Channel 55°S, Tierra del Fuego Atlantic coast 52-54°S and San Jorge Gulf 45-47°S). Fecundity, water and lipid...

The southern king crab (SKC) Lithodes santolla has supported a profitable fishery in the San Jorge Gulf (SJG) and adjacent area, Argentina, since 2004. This fishery allows landings only of males larger than 110 mm carapace length. Since large-male-only harvests have had a detrimental effect on the egg production of other king crab populations, here...

Squat lobsters frequently inhabit low-oxygen waters, facing particular physiological challenges. Pleuroncodes monodon inhabits one of the most extreme oxygen minimum zones in the world’s oceans at low temperatures, but avoids high temperature hypoxic waters. The present study aimed to determine whether the maternally dependent reproductive outcome...

The southern king crab (SKC) Lithodes santolla is an important commercial species in southern South America. There is a greater need for availability of fresh and live crabs during the season of highest demand in summer (mainly December and January). Thus, this study aimed to determine the effects of starvation and stocking densities on the physiol...

IMPORTANT: This article and the supplementary material can be downloaded free from http://ctmfm.org/revista/30/volumen-26/ __________________________________________________________________________________ Twenty seven years ago, the Comisión Técnica Mixta del Frente Marítimo published a catalogue of marine decapod and stomatopod crustaceans regis...

Benthic assemblages of the Antarctic continental shelf are dominated by sessile and slow-moving, epifaunal invertebrates. This community structure persists because shell-crushing (durophagous) predators are absent or ecologically insignificant in shelf habitats. Durophagous teleosts, elasmobranchs, and crustaceans have been excluded by cold waters...

Live transport to markets requires a baseline on the effects of temperature during air-exposure and the subsequent recovery in water. Our aim was to analyze the physiological effect of 24 h of air exposure in commercial male Lithodes santolla at different temperatures and subsequent re-immersion. Three groups of animals were air-exposed at three te...

In the sub-Antarctic waters of southern South America, two species that form conspicuous pelagic aggregations are considered both potential fshery resources and ecologically important: the Fuegian sprat Sprattus fuegensis and the squat lobster Munida gregaria. Here, we estimate spatio-temporal patterns of the relative abundance, distribution and po...

The fishery of Lithodes santolla is the second most productive lithodid crab fishery in the world and in southernmost South America is considered a mixed fishery due to its co-occurrence with Paralomis granulosa. Fishing takes place in Argentina and Chile, where regulations restrict to land only males larger than a legal size, but with variable fis...

The Southeast South American shelf marine ecosystem extends over the entire continental shelf off the Eastern shores of Argentina, Uruguay and southeastern Brazil (23° to 55°S). The region south of 40ºS is usually known as Patagonian Continental Shelf of Argentina (PCSA). The intertidal environments of the Patagonian shore are among the most divers...

Resumen de investigaciones en el AMP Namuncurá - Banco Burdwood

The validity and size of the biogeographic Magellan Province of marine organisms have been the focus of discussion of many authors. The distribution of fish and other organisms has revealed a lack of homogeneity in the area, which has also been interpreted as comprising four different Provinces: Southern Chile (SCH), Tierra del Fuego (TDF), Souther...

The potential for using suspended mesh-bags for larval/juvenile southern king crab (Lithodes santolla) aquaculture was assessed. Three early stages (Zoea, Megalopa and first juvenile, or C1) were confined for 45–65 days in mesh-bags near the sea-bottom. As L. santolla starts feeding when it reaches the first juvenile stage, the effect of biofouling...

El presente documento tiene por objetivo compilar información relevante sobre el sector oceánico conocido como Banco Burdwood, para implementar el Área Marina Protegida Namuncurá–Banco Burdwood, establecida por la Ley 26.875 en 2013 y reglamentada por Decreto 720/2014. Está destinado a las autoridades y funcionarios gubernamentales que se encuentra...

Este trabajo revisa la diversidad de Decápodos en estuarios, costas marinas, plataforma y talud continental, e islas y fondos abisales del Océano Atlántico Sudoccidental, frente a Uruguay y Argentina (33-55ºS), incluyendo la fauna del Océano Austral frente al extremo sud de América. Se registraron 191 especies de crustáceos decápodos, entre las que...

Predatory king crabs (Lithodidae) structure benthic communities in their native habitats and cause shifts in the composition of benthic assemblages when introduced to new environments. Cold temperatures have apparently excluded skeleton-breaking predators from the continental shelf around Antarctica for millions of years, but recent increases in se...

In this contribution we provide the first images of the submarine landscape of the Namuncurá Marine Protected Area, Burdwood Bank, at the SW Atlantic Ocean. This non-invasive approach revealed and offered a complementary view of the seafloor and its fauna, only previously reported from trawl catches.

In food deprivation assays, several different responses have been observed in crustaceans. However, studying energy reserves utilization among more than one species during the same starvation period has not yet been performed, particularly to discern whether the responses are due to intrinsic and/or environmental factors. We hypothesize that decapo...

El Área Marina Protegida (AMP) Namuncurá fue creada en el año 2013 a través de la Ley N°26.875 y se ubica en la región conocida como Banco Burdwood, una meseta submarina localizada a 200 km al sur de las Islas Malvinas y a 150 km al este de Isla de los Estados. Se trata de una región de características únicas dentro del Mar Argentino, que alberga u...

La necesidad de información sobre la población de centolla detectada en los foros de preparación del Cluster de Pesca Artesanal de Tierra del Fuego, fue concretada en un proyecto de la asociación. Esta necesidad se basó en que desde 2008 no existían estudios sobre la población sujeta a la pesca y/o la que ocupa el área de veda del Canal Beagle (Pun...

We studied the recovery of males of the commercially important king crab Lithodes santolla (Molina, 1782) once re-immersed after 24 h of air exposure (T) at 8 °C. The studied parameters were the enzymatic defenses superoxide dismutase, catalase, glutathione peroxidase, glutathione-S-transferase; the non-enzymatic antioxidants ascorbic acid and tota...

Both aquatic and soil ecosystems are environments rich in polymeric material from the different structures of the organisms belonging to the three domains of life that exist on our planet: Archaea, Bacteria, and Eukarya. Moreover, microbial communities play important roles in food webs, contributing to the regeneration of nutrients within these sys...

Predation influences changes in the abundance and the limits of spatial distribution of organisms on rocky shores. We quantified the effect of the predation pressure of the gastropod Trophon geversianus on the mytilid Mytilus chilensis in a rocky intertidal community of the Beagle Channel, Tierra del Fuego. We quantified the density of T. geversian...

RESUMEN Las langostillas (Decapoda: Galatheoidea) son uno de los grupos de crustáceos más abundantes de la plataforma continental argentina. De las dos especies que habitan el Mar Argentino, Munida spinosa y M. gregaria, la segunda es la más importante en cuanto a distribución y abundancia. En el presente capítulo se presenta una revisión de la inf...

RESUMEN En el presente capítulo se recopila información sobre la biología de las centollas en el Atlántico Sudocci-dental. El conocimiento de que se dispone corresponde, mayormente, a las especies que se explotan comercialmente tales como Lithodes santolla y Paralomis granulosa y relacionadas. Los estudios provie-nen, esencialmente, del Canal Beagl...

This study presents for the first time the factors governing the recruitment in a rocky intertidal community of the Beagle Channel, Tierra del Fuego (54°51′S 68°29′W), Argentina. The aim of this study was to examine the effect of grazers and predators, free substrate availability and crustose coralline algae on the recruitment of the main sessile c...

El Canal Beagle es un pasaje interoceánico conectando los Océanos Pacifico y Atlántico en el extremo sur de Sudamérica, donde confluyen intensos procesos de mezcla entre aguas marinas y continentales y una creciente presión antrópica. Desde julio 2014 se caracterizó la variabilidad estacional y espacial de las estructuras termohalinas en el Canal B...

Abstract Lossesofkingcrabs (deaths)inmassiverearing conditions are frequentlyattributed to cannibalism. As several factors could influence cannibalism intensity during culture, the aim of the present study was to determine the effect of molt condition, stage and density on cannibalism among Lithodes santolla juveniles. Comparisons between intermolt...

Munida gregaria (Fabricius, 1793) is one of the few species of squat lobsters (Anomura, Munididae) with two morphotypes, one with a post-metamorphic pelagic phase that eventually settles to the bottom (“gregaria”) and a second that is exclusively benthic (“subrugosa”). This study provides the first information on the growth of the pelagic morphotyp...

Las ascidias (Chordata, Tunicata) son animales marinos bentónicos sésiles. Su distribución estaría determinada de manera natural por el desplazamiento de sus larvas, así como por las condicionantes ambientales. La ubicación austral de Tierra del Fuego, supone una región transicional entre Sudamérica y Antártida, brindando un interesante escenario d...

Los intermareales rocosos son áreas costeras influenciadas por las mareas en los que el sustrato está compuesto por roca. Son ambientes extremos, que están expuestos a condiciones físicas severas como oleaje fuerte, congelación, desecación y abrasión causada por el hielo. Estas características determinan que los organismos que habitan estos ambient...

Atención! Publicación con datos desactualizados, del 2008.

***Información de 2020: En algunas universidades argentinas existen becas para cursar prácticamente toda la carrera. Por ejemplo en la U Buenos Aires con tener aprobado el CBC se puede postular a la beca*** Los océanos son la última frontera de nuestro planeta. A pesar de cubrir la mayor parte de su superficie, existen amplias regiones que permane...

In Southern South America Lithodes santolla and L. confundens are the most valuable king crabs species, specially due to their high yields and their high acceptance in the markets. From a physiological point of view, reactive oxygen species (ROS) are continuously produced as by-products of cell respiration. These ROS are transformed into less toxic...

Las centollas están entre los artrópodos más grandes del mundo, con ejemplares de tamaño extremo de más de 1,5 m de apertura entre patas y más de 10 kg de peso. Su gran tamaño les valió, entre varios apelativos, el nombre vulgar de King Crab en inglés, o crabe royal en francés, por ejemplo. Sin embargo el significado del género Lithodes (del griego...

The phylogenetic and physiological characteristics of cultivable-dependent approaches were determined to establish the diversity of marine bacteria associated with the intestines of benthonic organisms and seawater samples from the Argentina's Beagle Channel. A total of 737 isolates were classified as psychrophlic and psychrotolerant culturable mar...

The “East Pacific Barrier” has been recognized as the World’s largest marine biogeographic barrier. Munida gregaria is the only species of its family with transpacific populations; however, it still remains to be elucidated whether these two distantly located populations belong to the same species. In this study, we investigated the genetic cohesio...

Diagnóstico de las pesquerías argentinas. Informe elaborado en el marco de la etapa de preparación del proyecto de inversión GEF/FAO "Fortalecimiento de la la Gestión y Protección de la Biodiversidad Costero Marina en áreas ecológicas clave y la aplicación del enfoque ecosistémico de la pesca (EEP)" Introducción 5 Contexto General 5 Descripción y...

CONTENTS 14.1 Introduction................................................................................................................................. 449 14.2 Morphology..................................................................................................................................452 14.3 Larvae ................................

CONTENTS 1.1 Introduction...................................................................................................................................... 1 1.2 Red King Crab Paralithodes camtschaticus (Tilesius, 1815).......................................................... 3 1.3 Blue King Crab Paralithodes platypus (Brandt, 1850) .............

http://www.tandfonline.com/eprint/ti8dzqfYTXASdHQQaUDb/full In species with meroplanktonic larval phases, some reproductive traits (i.e. seasonality and larval behaviour) interact with hydrographic features to determine larval transport. This work reports the seasonal, diel and ontogenetic changes in vertical distribution of crab larvae in the boun...