Seasonal antioxidant and biochemical properties of the Northern Adriatic Pecten jacobaeus

Popović, Natalija Topić; Ljubić, Blanka Beer; Strunjak‐Perović, Ivanc̆ica; Babić, Sanja; Lorencin, Vanesa; Jadan, Margita; Čižmek, Lara; Matulić, Daniel; Bojanić, Krunoslav; Čož‐Rakovac, Rozelindra

doi:10.1371/journal.pone.0230539

Cited by 9 publications

(9 citation statements)

References 42 publications

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“…Moreover, the IC showed a statistically significant negative correlation with temperature, pH value and dissolved oxygen. Seasonal fluctuations in the seawater parameters can negatively affect the physiology, stress response and survival of the queen scallop (A. opercularis) in the Northern Adriatic [11], as was found in this study. Previous research showed that, in addition to environmental parameters such as temperature, salinity and food availability, gametogenesis represents an important factor for morphological growth, since it requires a lot of energy [40].…”

Section: Discussionsupporting

confidence: 70%

“…In this study, the highest dissolved oxygen concentrations were measured during the winter months (December and January), while, unexpectedly, we measured high oxygen concentrations during the summer months (10.7 mg/L). Topić-Popović et al [11], in their research in the Northern Adriatic at a depth of 15 m, measured the highest concentrations during the winter (5.89 mg/L). The temperature and nutrient availability in the water column are the main factors affecting scallop growth [2,5,33].…”

Section: Discussionmentioning

confidence: 93%

“…Among bivalves, scallops represent an important part of the global seafood market supply and supporting both aquaculture and capture fisheries around the world [10]. Scallops naturally occur on firm, sandy gravel, sandy mud or shelly ground down to 190 m in depth along the east coast of the North Atlantic, as well as the Mediterranean and Adriatic Seas [2,11]. The most widespread scallop species in the northern Adriatic Sea belong to the subfamily Pectinidae and have high commercial value [12].…”

Section: Introductionmentioning

confidence: 99%

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Commercial Quality, Biological Indices and Biochemical Composition of Queen Scallop Aequipecten opercularis in Culture

Kovačić

Žunec

Matešković

et al. 2023

Fishes

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Market demand for scallops has considerably increased in recent decades. Although natural populations of scallops are vulnerable, the queen scallop, Aequipecten opercularis, can represent a possible alternative to at-risk species. The aim of this study was to determine the effect of seawater parameters on the commercial quality, biological indices and nutritional quality of the scallop A. opercularis in 1900 L tanks in ex situ conditions. The condition index (CI) and meat yield (MY) peaked in autumn (89.92% and 40.29%, respectively). The muscle index (MI) showed the highest peak during the winter season (5.96%), while the gonadosomatic index (GSI) (34.06%) peaked in the spring months. Protein content (6.89–9.56 g/100 g), lipids (2.58–2.79 g/100 g) and carbohydrates (0.12–0.33 g/100 g) varied during the study period. Seasonal fluctuations in seawater temperature and pH negatively influenced the CI, MY and protein and lipid content, while positively affecting carbohydrate and moisture content. The most suitable period of the year for the consumption of the scallop A. opercularis was found to be the winter and spring periods, when the scallops achieved their highest nutritional value. It can be stated from this study that queen scallops in the Adriatic Sea have a high nutritional quality and that they can be proposed for higher human consumption.

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Section: Discussionsupporting

confidence: 70%

Section: Discussionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Commercial Quality, Biological Indices and Biochemical Composition of Queen Scallop Aequipecten opercularis in Culture

Kovačić

Žunec

Matešković

et al. 2023

Fishes

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“…Interestingly, during late summer/ early fall, when GSI values in the present study were at a maximum, P. jacobaeus from the Krka estuary had the lowest GSI values. A recent study by TopićPopovićet al (2020), conducted in the same area where the current study was performed, also recorded the highest GSI values in fall. Unfortunately, in their study, the authors only performed seasonal sampling, so it is not possible to determine if there was more than one reproductive peak.…”

Section: Reproductionsupporting

confidence: 68%

Different life strategies of the three commercially exploited scallop species living under the same environmental conditions

Ezgeta-Balić

Peharda²,

Schöne³

et al. 2022

Front. Mar. Sci.

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To understand the response of marine species to a changing environment, it is crucial to have deep insight into their main biological traits. This study used a multi-species approach to comparatively analyse the reproductive and growth strategies of three commercially important scallop species. Target taxa were larger sized Mediterranean scallop Pecten jacobeaus, and two smaller sized species Aequipecten opercularis and Flexopecten glaber. Specimens were collected at approximate monthly intervals from February 2017 to October 2018 from a commercial beam trawl in the northern Adriatic area (west coast of the Istria peninsula, 25-35 m depth). Three different complementary methods were applied to obtain comprehensive knowledge about the reproductive cycle including assessment of the gonadosomatic index (GSI), histological analysis of gonad tissue, and measuring oocyte size. Growth strategies of three target species were analyzed using high-resolution stable oxygen isotope data that were temporally aligned on sea water temperature data obtained by AdriSC ROMS model. Results indicate diverse strategies employed by these taxonomically related species exposed to the same environmental conditions. Pecten jacobaeus spawned in the late summer and early fall, while shell growth slowed down during warmer season. Aequipecten opercularis spawned in the winter and slowed down shell deposition process during the cold season. Spawning of F. glaber occurred during early to mid-summer and growth slowed down during warmer season. This study provides an important scientific baseline for sustainable management and future aquaculture attempts of scallops.

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“…It, thus, seems that the variation of scallop growth is location-dependent. The particular location might also affect biochemical and antioxidative properties their tissue [7].…”

Section: Introductionmentioning

confidence: 99%

Comparative Tissue Responses of Marine Mollusks on Seasonal Changes in the Northern Adriatic Sea

et al. 2021

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In the shallow Northern Adriatic, marine mollusks are affected by bottom trawling and seafood disturbance. Seasonal oscillations of oceanographic factors additionally influence their physiology, stress responses and survival. Tissue responses to seasonal variations in green ormer (Haliotis tuberculata L.) and Mediterranean scallop (Pecten jacobaeus L.) in the Northern Adriatic have not been reported. Hence, their biochemical and antioxidant defense properties over seasons were studied and the microanatomical structure of their tissue was correlated with function. Histological analysis of gonads revealed two peaks of gonadal maturation and spawning during the spring/summer period and winter season for scallops, and one peak during the fall for ormers. The gonadal maturation of both species was correlated with their seasonal variations of metabolic demands and antioxidant capacity. The lipid vacuoles of tubuloacinar terminations in the digestive gland differed between the two species; in scallop they are several-fold larger in size and number. Low temperatures in winter contributed to a decline in enzymatic antioxidant defense in scallop tissues, having lower superoxide dismutase (SOD) and glutathione peroxidase (GPx) activity, and higher concentrations of thiobarbituric acid reactive substances (TBARS) and total antioxidant status (TAS). In ormers, winter induced lower TAS, TBARS, SOD and GPx concentrations. The significant difference of winter TAS and TBARS levels between ormers and scallops was correlated with variations in their reproductive cycles, as well as in antioxidant defense systems. The most important factor for stress-related parameters for both species in this work was found to be the season-induced temperature change.

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Seasonal antioxidant and biochemical properties of the Northern Adriatic Pecten jacobaeus

Cited by 9 publications

References 42 publications

Commercial Quality, Biological Indices and Biochemical Composition of Queen Scallop Aequipecten opercularis in Culture

Commercial Quality, Biological Indices and Biochemical Composition of Queen Scallop Aequipecten opercularis in Culture

Different life strategies of the three commercially exploited scallop species living under the same environmental conditions

Comparative Tissue Responses of Marine Mollusks on Seasonal Changes in the Northern Adriatic Sea

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