Reproductive Ecology of Commercially Important Lithodid Crabs

Otto, Robert S.

doi:10.1201/b16664-11

Cited by 11 publications

(14 citation statements)

References 64 publications

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“…The reproductive system of female Lithodes santolla follows the anatomical pattern observed in other Anomura crabs, such as P. camtschaticus (Webb, 2014). The female reproductive system consists of paired ovaries (dorsum-lateral to the digestive system, and connected in the middle, as an "H" shape) and oviducts, which are connected to gonopores located on the ventral surface of the exopodites of the second pereiopods.…”

Section: Histological Characterization Of Oogenesismentioning

confidence: 72%

“…Similar to most decapod crustaceans, lithodid eggclutch production consists of phases of ovarian maturation, including primary oocyte formation and secondary vitellogenesis (lipogenesis) followed by ovoposition, fertilization, attachment to the pleopods and brooding of the eggs in the abdominal pouch. Oogenesis varies within and among lithodid species (Webb, 2014). For L. santolla reproducing for the first time, oogenesis duration is approximately two years with primary oocyte formation in the first year and secondary vitellogenesis in the following year (Vinuesa & Labal de Vinuesa, 1998;Webb, 2014).…”

Section: Discussionmentioning

confidence: 99%

“…The king crab, Lithodes santolla, also known as the southern king crab, Magellanic centolla, Patagonian centolla, Chilean centolla or common king crab, is like the North Pacific king crab, Paralithodes camtschaticus. The southern king crab is one of the main fisheries of the Magellan and Chilean Antarctic Region and an important source of foreign currency, exchange and jobs in the region (SUBPESCA, 2014;Webb, 2014).…”

Section: Introductionmentioning

confidence: 99%

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Oogenesis of Lithodes santolla: histological and histochemical characterization

Arcos-Ortega¹,

Serrano-Silvas

Rodrı́guez-Jaramillo³

et al. 2019

LAJAR

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Although Lithodes santolla is a resource with high commercial importance that has aroused interest in controlled reproduction in captivity, currently, little knowledge is available about basic reproductive aspects of this species. This research study describes detailed oogenesis stages at the histological level in adult females of the southern king crab of the Magellan and Chilean Antarctic Region. Oogenesis was quantitatively analyzed from the proliferation of 10-24 μm oogonia and during oocyte growth. Five stages of ovary development were identified: multiplication (0), previtellogenesis (I), vitellogenesis (II), maturity (III) and spawning (IV). Furthermore, 11 oocyte substages were distinguished: oogonia, chromatin nucleolus, early perinucleolus, late perinucleolus, oil globule, early vitellin globule, late vitellin globule, postvitelogenic, germinal vesicle migration and germinal vesicle breakdown. Primary vitellogenesis occurred in oocytes 180-185 μm, containing acidophilic globules and surrounded by a layer of thick follicle cells (20-40 μm). Secondary vitellogenesis was evident in oocytes at 315-321 μm with numerous acidophilic granules in the cytoplasm and surrounded by thin follicle cells; then, cortical crypts appeared, indicating the prematuration stage and preparation for ovulation. This study allows establishing gonadic changes that occur during a reproductive cycle of female L. santolla and help to strengthen aquaculture initiatives and management in the Magellan and Chilean Antarctic Region.

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Section: Histological Characterization Of Oogenesismentioning

confidence: 72%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Oogenesis of Lithodes santolla: histological and histochemical characterization

Arcos-Ortega¹,

Serrano-Silvas

Rodrı́guez-Jaramillo³

et al. 2019

LAJAR

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show abstract

“…Excessive removal of large, potentially dominant males can lead to reproductive failure due to a scarcity of large males and a preponderance of small males (with low reproductive potential and mating ability) available for mating. This can result in an increased number of barren females or females with incomplete clutches (Weeb 2014 ).…”

Section: Southern King Crab Health In San Jorge Gulfmentioning

confidence: 99%