EurekaMag
+ Translate
+ Most Popular
The pigeon tick (Argas reflexus): its biology, ecology, and epidemiological aspects
Prevalence of hemoglobin abnormalities in Kebili (Tunisian South)
Lipogranuloma: a preventable complication of dacryocystorhinostomy
Value of basal plasma cortisol assays in the assessment of pituitary-adrenal insufficiency
Bees from the Belgian Congo. The acraensis group of Anthophora
Placing gingival retraction cord
Total serum IgE, allergy skin testing, and the radioallergosorbent test for the diagnosis of allergy in asthmatic children
Acariens plumicoles Analgesoidea parasites des oiseaux du Maroc
Injuries of terminal phalanges of the fingers in children
Biology of flowering and nectar production in pear (Pyrus communis)
Das Reliktvorkommen der Aspisviper (Vipera aspis L.) im Schwarzwald
Hydrological modelling of drained blanket peatland
Pathologic morphology and clinical significance of the anomalous origin of the left circumflex coronary artery from the right coronary artery. General review and autopsy analysis of 30 cases
Cyto genetic analyses of lymphocyte cultures after exposure to calcium cyclamate
Axelrodia riesei, a new characoid fish from Upper Rio Meta in Colombia With remarks concerning the genus Axelrodia and description of a similar, sympatric, Hyphessobrycon-species
Favorable evolution of a case of tuberculosis of pancreas under antibiotic action
RIFM fragrance ingredient safety assessment, Valencene, CAS Registry Number 4630-07-3
Parenteral microemulsions: an overview
Temperate pasture: management for grazing and conservation
Evaluation of a new coprocessed compound based on lactose and maize starch for tablet formulation
Thermal expansion and cracking of three confined water-saturated igneous rocks to 800C
Revision of the genera of the tribe Stigmoderini (Coleoptera: Buprestidae) a discussion of phylogenetic relationships
Anal tuberculosis. Report of a case
Gastric tuberculosis in the past and present
Adaptive responses of the cardiovascular system to prolonged spaceflight conditions: assessment with Holter monitoring

The timing and reproductive output of the commercial sea cucumber Holothuria scabra on the Kenyan coast


The timing and reproductive output of the commercial sea cucumber Holothuria scabra on the Kenyan coast



Estuarine Coastal and Shelf Science 84.3



ISSN/ISBN: 0272-7714

DOI: 10.1016/j.ecss.2009.04.011

The sea cucumber Holothuria scabra is a widely distributed and economically important species that has been harvested in Kenya for decades. No previous studies have been carried out on the reproduction of this species in Kenya. Standard gonad index methods were used to analyze reproductive patterns of individuals collected monthly in 1998-1999, 2000-2001 and 2006-2007. Morphological characteristics, gonad tubule lengths and fecundity were also measured. Mean monthly gonad indices were significantly correlated between males and females indicating synchronous gonad development between the sexes. Gonad indices showed a biannual pattern that was consistent in all three years with a minor spawning event occurring between August and September and a major spawning event between November and December. The pattern of gonad growth showed significant variability between years and between months. Temporal changes in gonad growth correlated significantly with gonad tubule length and absolute fecundity. Monthly gonad indices also correlated significantly with monthly measurements of air temperature and light suggesting a possible role for both factors in timing gametogenesis and spawning. There was a shift in sex ratio from unity in the 1998-1999 and 2000-2001 samples to significantly more males in the 2006-2007 samples, as well as a significant reduction in mean sizes (body wall weight) and reproductive output (gonad index) which suggests that the reproductive success of this species is potentially negatively affected by fishing.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 025955732

Download citation: RISBibTeXText

Related references

The timing and reproductive output of the commercial sea cucumber Holothuria scabra on the Kenyan coast. Science, Policy and Management: Pressures and Responses in the Western Indian Ocean Region. Scientific Symposium 84(3): 353-360, 2009

A new steroid glycoside from the sea cucumber Holothuria scabra off Mandapam coast. Indian Journal of Chemistry Section B Organic Chemistry Including Medicinal Chemistry 34B7: 666-668, 1995

Some aspects of sea cucumber, Holothuria scabra (Jaeger, 1935), along the coast of Dar es Salaam. Western Indian Ocean Journal of Marine Science 12: 163-168, 2002

Advances in sea cucumber aquaculture and prospects for commercial culture of Holothuria scabra. Cab Reviews: Perspectives In Agriculture, Veterinary Science, Nutrition And Natural Resources: 082, 1-15, 2008

A preliminary note on the reproductive periodicity of the sea cucumber Holothuria scabra. KALIKASAN 11(1): 175-178, 1982

Reproduction of the commercial sea cucumber Holothuria scabra (Echinodermata: Holothuroidea) in the Solomon Islands. Marine Biology (Berlin) 142(2): 281-288, 2003

Aspects of the reproductive cycle of the sea cucumber Holothuria scabra (Echinodermata: Holothuroidea). Bulletin of Marine Science 66(1): 47-57, 2000

Studies on the biology, ecology and fishery of the sea-cucumber Holothuria (Metriatyla) scabra Jaeger from southeast coast of India. CMFRI Special Publication 61: 13-17, 1995

The reproductive biology of a new species of sea cucumber, Holothuria (Mertensiothuria) arenacava in a Kenyan marine protected area: the possible role of light and temperature on gametogenesis and spawning. ine Biology 149(3): 5-93, 2006

The reproductive biology of a new species of sea cucumber, Holothuria (Mertensiothuria) arenacava in a Kenyan marine protected area : the possible role of light and temperature on gametogenesis and spawning. Marine Biology (Berlin) 149(3): 585-593, 2006

Reproductive biology of the commercial sea cucumber Holothuria fuscogilva in the Solomon Islands. Marine Biology (Berlin) 136(6): 1045-1056, 2000

Reproductive biology of the tropical sea cucumber Holothuria atra (Echinodermata: Holothuroidea) in the Red Sea coast of Egypt. Egyptian Journal of Aquatic Research 312: 383-402, 2005

Reproductive biology of the commercial sea cucumber Holothuria spinifera from Tuticorin, Tamil Nadu, India. Aquaculture International: 3, 231-242, 2008

Nutritional components of the sea cucumber Holothuria scabra. Functional Foods in Health and Disease 7(3): 168-181, 2017

Induction of spawning in the sea cucumber Holothuria scabra. Journal of the World Aquaculture Society 31(2): 186-194, 2000