Inter‐sexual comparison of body biomass, proximate biochemical composition, and fatty acid profiles of new juvenile squat lobsters (<i>Pleuroncodes monodon</i>) in the Southeast Pacific Ocean

Guzmán‐Rivas, Fabián; Quispe‐Machaca, Marco; Olavarría, Luis; Zilleruelo, Maximiliano; Urzúa, Ángel

doi:10.1111/maec.12690

Cited by 3 publications

(4 citation statements)

References 69 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In contrast, the analyzed muscle tissues of new juvenile females in both locations presented higher protein contents than the viscera because the muscle is the main protein storage organ ( Haye et al, 2010 ; Haye et al, 2014 ). In juvenile P. monodon females, a higher lipid content in the viscera, available as bioenergetic fuel, is fundamental to support the high energy cost of their first reproductive event (characterized by egg laying and incubation), which occurs during the austral winter, with cold water-temperatures and low food availability in the environment ( Guzmán-Rivas et al, 2021b ; Guzmán, Olavarría & Urzúa, 2016 ; Seguel et al, 2019 ; Thiel et al, 2012 ).…”

Section: Discussionmentioning

confidence: 99%

“…Then, as described in detail by Guzmán-Rivas et al (2021a) , all internal organs ( i.e., viscera) and muscle were removed from each new juvenile female. Due to the small size of the specimens, we mixed all of the internal organs and referred to this as “viscera” (which was mainly composed of hepatopancreas (∼90%), stomach and ovary (∼10%)) ( Guzmán-Rivas et al, 2021b ; Mantel, 1983 ; Subramoniam, 2017 ). The storage and subsequent weighing of samples was carried out following the same protocol as described by Guzmán-Rivas et al (2021b) .…”

Section: Methodsmentioning

confidence: 99%

“…Due to the small size of the specimens, we mixed all of the internal organs and referred to this as “viscera” (which was mainly composed of hepatopancreas (∼90%), stomach and ovary (∼10%)) ( Guzmán-Rivas et al, 2021b ; Mantel, 1983 ; Subramoniam, 2017 ). The storage and subsequent weighing of samples was carried out following the same protocol as described by Guzmán-Rivas et al (2021b) . The viscera and muscle samples (20 mg of dry weight (DW)) were then used to analyze the biochemical components (lipid, protein, glucose, and energy contents).…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Contrasting nursery habitats promote variations in the bioenergetic condition of juvenile female red squat lobsters (Pleuroncodes monodon) of the Southern Pacific Ocean

Guzmán‐Rivas

Quispe

Urzúa

2022

PeerJ

Self Cite

View full text Add to dashboard Cite

The red squat lobster Pleuroncodes monodon is an important fishery resource in the Humboldt Current System (HCS). This decapod is exploited in two fishing units: (a) the northern fishing unit (NFU, from 26°S to 30°S) and (b) the southern fishing unit (SFU, from 32°S to 37°S), each of which have an adjacent nursery area that is the source of recruits to replace the exploited adult populations (in the NFU: off the coast of Coquimbo (28°S) and in the SFU: off the coast of Concepción (36°S)). Marked spatial differences in the environmental conditions of the NFU and SFU, and the biogeographic break that exists between these nursery areas (30°S) may promote changes in the bioenergetic condition of new P. monodon juveniles. To evaluate this, we analyzed the bioenergetic condition (measured as: body mass, lipids, proteins, glucose, and energy) of new juvenile females in the main nursery areas off the Chilean coast. The juvenile females from the SFU showed a higher body mass than those from the NFU. Consistently, the juvenile females from the SFU had a higher content of lipids, proteins, and glucose than those from the NFU, indicative of higher energy contents and a higher lipid/protein ratio in the south compared to the north. Considering the current overexploitation of this fishery resource in the HCS, it is essential to understand how the bioenergetic condition of juvenile females of P. monodon may vary in nursery areas at different latitudes in order to generate sustainable fishery management policies with an ecological approach, designed specifically to each fishing unit. Furthermore, identifying the latitudinal variations of these biochemical compounds in P. monodon juveniles can elucidate the geographic origin of red squat lobsters that present a ”better bioenergetic condition” in the HCS, which may significantly benefit sustainable fishing certification processes.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Contrasting nursery habitats promote variations in the bioenergetic condition of juvenile female red squat lobsters (Pleuroncodes monodon) of the Southern Pacific Ocean

Guzmán‐Rivas

Quispe

Urzúa

2022

PeerJ

Self Cite

View full text Add to dashboard Cite

show abstract

“…This seems to be a reproductive adaptation strategy to ensure a high-energy reserve during seasons of lower temperature and less food availability [105]. Therefore, understanding the variations in the reproductive characteristics of this species and taking into account the fact that females must be managed in a particular way, it is important to establish better fishing models to guarantee the sustainable exploitation of P. monodon [100,106].…”

Section: Reproduction and Bioenergeticsmentioning

confidence: 99%

The Red Squat Lobster Pleuroncodes monodon in the Humboldt Current System: From Their Ecology to Commercial Attributes as Marine Bioresource

Yapur-Pancorvo,

Quispe-Machaca,

Guzmán-Rivás

et al. 2023

Animals

Self Cite

View full text Add to dashboard Cite

This study focused on gathering available information on Pleuroncodes monodon, a widely distributed crustacean in the Humboldt Current System. Off the Chilean coast, this species presents benthic habits and constitutes the main resource of the industrial crustacean fishery; many studies have been carried out on its life cycle during the last century. In contrast, off the coast of Peru, this species exhibits mainly pelagic habits, with latent information gaps on aspects of its life history and no commercial fishery activities, such as catching, taking or harvesting from the marine environment. P. monodon is an ecologically important species, as a source of energy for its predators, which include invertebrates, birds, marine mammals and fish of commercial interest. Thus, P. monodon seems to play a key role in this ecosystem, mainly as an intermediate link between top predators and the first links in the food chain. In addition, this species presents various adaptation strategies to the changing oceanographic parameters of the areas it inhabits, even tolerating hypoxic environments and great depths in order to avoid being predated. Likewise, from an economic viewpoint, it has a high commercial value as a marine bioresource with great potential in the pharmaceutical and food industries. Considering this, more studies must be carried out to corroborate the biological, ecological, and fishing importance of this species in order to generate efficient management measures and ensure a sustainable fishery.

show abstract

Living Along Distribution Margins: Differences in the Body and Biochemistry of Red Squat Lobster Morphotypes (Grimothea monodon) from the Humboldt Current System

Quispe-Machaca,

Zilleruelo,

Espinoza

et al. 2024

Fishes

View full text Add to dashboard Cite

Grimothea monodon, an important fishery resource in the Humboldt Current marine ecosystem (HCE), present two contrasting morphotypes (PM, pelagic morphotype; BM, benthic morphotype). The fishery management of G. monodon is focused on understanding only fishery aspects that apply to a limited area, and there are currently no studies that evaluate the nutritional status of these morphotypes. This study evaluated the biological performance of PM and BM, analyzing the body (size, CL; weight, W; condition factor, Kn) and biochemical condition (glucose, G; proteins, P; lipids, L; fatty acids, FAs). The results reveal that G. monodon showed differences in CL and W between morphotypes, with higher values in BM than PM. The Kn was different between morphotypes with a tendency of isometric growth. In turn, the G contents were higher in PM than BM, while the contents of P, L, and FAs showed an opposite tendency, with higher contents recorded in BM than PM. Our findings suggest that the Kn should be included to strengthen the biological parameters and their relationships used in fishery management models. Differences in the biochemical condition between morphotypes can be considered potentially adaptive, in response to the combined effect of environmental factors that vary in the HCE.

show abstract

Inter‐sexual comparison of body biomass, proximate biochemical composition, and fatty acid profiles of new juvenile squat lobsters (Pleuroncodes monodon) in the Southeast Pacific Ocean

Cited by 3 publications

References 69 publications

Contrasting nursery habitats promote variations in the bioenergetic condition of juvenile female red squat lobsters (Pleuroncodes monodon) of the Southern Pacific Ocean

Contrasting nursery habitats promote variations in the bioenergetic condition of juvenile female red squat lobsters (Pleuroncodes monodon) of the Southern Pacific Ocean

The Red Squat Lobster Pleuroncodes monodon in the Humboldt Current System: From Their Ecology to Commercial Attributes as Marine Bioresource

Living Along Distribution Margins: Differences in the Body and Biochemistry of Red Squat Lobster Morphotypes (Grimothea monodon) from the Humboldt Current System

Contact Info

Product

Resources

About