Reproductive Biology of the Invasive Blue Crab Callinectes sapidus in the Thermaikos Gulf (Northwest Aegean Sea, Eastern Mediterranean): Identifying Key Information for an Effective Population Management Policy

KOSMAS KEVREKIDIS; THEODOROS KEVREKIDIS; CHARITON CHARLES CHINTIROGLOU; KYRIAKI AVRAMOGLOU; SOFOKLIS KEISARIS; KOSTAS FRYGANIOTIS; CHRISOULA APOSTOLOGAMVROU; Kyriakoula Roditi; Konstantinos Voulgaris; Anastasios Varkoulis; IRENE DALMIRA; Katerina Charitonidou; VIVIAN MALEA; DIMITRIS VAFIDIS

doi:10.20944/preprints202409.1858.v1

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preprints.org > biology and life sciences > aquatic science > doi: 10.20944/preprints202409.1858.v1

Preprint Article Version 1 This version is not peer-reviewed

Reproductive Biology of the Invasive Blue Crab Callinectes sapidus in the Thermaikos Gulf (Northwest Aegean Sea, Eastern Mediterranean): Identifying Key Information for an Effective Population Management Policy

KOSMAS KEVREKIDIS

^* ,

THEODOROS KEVREKIDIS

^* ,

CHARITON CHARLES CHINTIROGLOU

KYRIAKI AVRAMOGLOU

SOFOKLIS KEISARIS

KOSTAS FRYGANIOTIS

CHRISOULA APOSTOLOGAMVROU

Kyriakoula Roditi

Konstantinos Voulgaris

Anastasios Varkoulis

IRENE DALMIRA

Katerina Charitonidou

VIVIAN MALEA

DIMITRIS VAFIDIS

Version 1 : Received: 23 September 2024 / Approved: 24 September 2024 / Online: 24 September 2024 (11:56:38 CEST)

How to cite: KEVREKIDIS, K.; KEVREKIDIS, T.; CHINTIROGLOU, C. C.; AVRAMOGLOU, K.; KEISARIS, S.; FRYGANIOTIS, K.; APOSTOLOGAMVROU, C.; Roditi, K.; Voulgaris, K.; Varkoulis, A.; DALMIRA, I.; Charitonidou, K.; MALEA, V.; VAFIDIS, D. Reproductive Biology of the Invasive Blue Crab Callinectes sapidus in the Thermaikos Gulf (Northwest Aegean Sea, Eastern Mediterranean): Identifying Key Information for an Effective Population Management Policy. Preprints 2024, 2024091858. https://doi.org/10.20944/preprints202409.1858.v1 KEVREKIDIS, K.; KEVREKIDIS, T.; CHINTIROGLOU, C. C.; AVRAMOGLOU, K.; KEISARIS, S.; FRYGANIOTIS, K.; APOSTOLOGAMVROU, C.; Roditi, K.; Voulgaris, K.; Varkoulis, A.; DALMIRA, I.; Charitonidou, K.; MALEA, V.; VAFIDIS, D. Reproductive Biology of the Invasive Blue Crab Callinectes sapidus in the Thermaikos Gulf (Northwest Aegean Sea, Eastern Mediterranean): Identifying Key Information for an Effective Population Management Policy. Preprints 2024, 2024091858. https://doi.org/10.20944/preprints202409.1858.v1

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MDPI and ACS Style

KEVREKIDIS, K.; KEVREKIDIS, T.; CHINTIROGLOU, C. C.; AVRAMOGLOU, K.; KEISARIS, S.; FRYGANIOTIS, K.; APOSTOLOGAMVROU, C.; Roditi, K.; Voulgaris, K.; Varkoulis, A.; DALMIRA, I.; Charitonidou, K.; MALEA, V.; VAFIDIS, D. Reproductive Biology of the Invasive Blue Crab Callinectes sapidus in the Thermaikos Gulf (Northwest Aegean Sea, Eastern Mediterranean): Identifying Key Information for an Effective Population Management Policy. Preprints 2024, 2024091858. https://doi.org/10.20944/preprints202409.1858.v1

APA Style

KEVREKIDIS, K., KEVREKIDIS, T., CHINTIROGLOU, C. C., AVRAMOGLOU, K., KEISARIS, S., FRYGANIOTIS, K., APOSTOLOGAMVROU, C., Roditi, K., Voulgaris, K., Varkoulis, A., DALMIRA, I., Charitonidou, K., MALEA, V., & VAFIDIS, D. (2024). Reproductive Biology of the Invasive Blue Crab <em>Callinectes sapidus </em>in the Thermaikos Gulf (Northwest Aegean Sea, Eastern Mediterranean): Identifying Key Information for an Effective Population Management Policy. Preprints. https://doi.org/10.20944/preprints202409.1858.v1

Chicago/Turabian Style

KEVREKIDIS, K., VIVIAN MALEA and DIMITRIS VAFIDIS. 2024 "Reproductive Biology of the Invasive Blue Crab <em>Callinectes sapidus </em>in the Thermaikos Gulf (Northwest Aegean Sea, Eastern Mediterranean): Identifying Key Information for an Effective Population Management Policy" Preprints. https://doi.org/10.20944/preprints202409.1858.v1

Abstract

The reproductive biology of the invasive blue crab Callinectes sapidus was studied in the Thermaikos Gulf (Northwest Aegean Sea, Eastern Mediterranean). In the two-year survey 5,698 (2,897♂/ 2,801♀) crabs were caught with the use of fyke nets. Total sex ratio (♂/♀) reached equality (1.03:1). The female blue crab exhibited a protracted reproductive period. Mature and ovigerous females exhibit short migratory movements from estuarine and inshore waters, where the population mostly congregates (0-3 m), and move to slightly deeper waters (1-3 m) up to 9 m for spawning. A total of 340 ovigerous females were caught. Their number varied both spatially and temporally; they were observed for a 7-month period (April to October) with a clear peak in July - August and at a 3 m depth gradient corresponding to ≈60% of the total number of ovigerous females caught in both years. Size at first sexual maturity (CW50) was estimated at 113.1 mm CW. Average fecundity was ≈790,000 eggs. Experimental trawling showed that inshore waters (<1 m) in the estuaries serve as nursery areas for juveniles. Defining the spatiotemporal and bathymetrical distribution of ovigerous females in any invaded coastal habitat could be considered key information for the implementation of a management policy for the species.

Keywords

invasive blue crab; Callinectes sapidus; Thermaikos Gulf; Aegean Sea; reproductive biology; ovigerous females; depth gradient; size at first maturity; fecundity; population management policy

Subject

Biology and Life Sciences, Aquatic Science

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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