Reproduction of the commercial sea cucumber Holothuria whitmaei [Holothuroidea: Aspidochirotida] in the Indian and Pacific Ocean regions of Australia

Shiell, Glenn R.; Uthicke, Sven

doi:10.1007/s00227-005-0113-3

Cited by 50 publications

(49 citation statements)

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“…Mean tubule diameters found for H. sanctori were similar to those of other species, such as Holothuria whitmaei, which has dimensions of 1.04±0.33 mm for males and 1.56±0.86 mm for females, very similar to the 0.86±0.26 mm for males and 1.39±0.37 mm for females of H. sanctori. Throughout the study, female tubules were wider than male tubules, which is a common pattern for many holothurians (Shiell andUthicke 2005, Toral andMartínez 2007). However, tubules were slightly longer in males than in females, as occurs in other Aspidochirotida species, such as H. fuscogilva, H. nobilis, H. fuscopunctata, H. scabra, H. atra, Actinopyga mauritana, Actinopyga echinites (Conand 1993b), H. witmaei (Shiell and Uthicke 2005) and H. spinifera (Asha and Muthiah 2008).…”

Section: Macro-and Microscopic Analysis Of Gonad Tubulesmentioning

confidence: 56%

“…All gonads were fixed using 10% formalin and stored for later macroscopic and microscopic analysis (Shiell and Uthicke 2005).…”

Section: Gonad Indexmentioning

confidence: 99%

“…sanctori showed a sex ratio that does not differ significantly from a 1:1 relation. In most holothurians from the Aspidochirotida order, the sex ratio usually coincides with a balanced 1:1 relationship (Cameron and Frankboner 1986, Ramofafia et al 2000, 2001, Rasolofonirina et al 2005, Asha and Muthiah 2008, although some species show a slightly unbalanced ratio with more males than females, or vice versa (Shiell and Uthicke 2005).…”

Section: Sex-ratiomentioning

confidence: 99%

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Reproductive biology of the sea cucumber <i>Holothuria sanctori</i> (Echinodermata: Holothuroidea)

Navarro¹,

Sanz²,

Tuya³

2011

Sci. Mar.

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Section: Macro-and Microscopic Analysis Of Gonad Tubulesmentioning

confidence: 56%

“…All gonads were fixed using 10% formalin and stored for later macroscopic and microscopic analysis (Shiell and Uthicke 2005).…”

Section: Gonad Indexmentioning

confidence: 99%

Section: Sex-ratiomentioning

confidence: 99%

See 1 more Smart Citation

Reproductive biology of the sea cucumber <i>Holothuria sanctori</i> (Echinodermata: Holothuroidea)

Navarro¹,

Sanz²,

Tuya³

2011

Sci. Mar.

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Section: Gut Retention Timementioning

confidence: 99%

“…month [fixed factor with 3 levels] and year [random factor with 2 levels]) and (2) ensure that each of the months contained independent observations, both desirable prerequisites for ANOVA procedures. For this analysis, month was considered to be a fixed factor to account for the fact that January, April and August represented fixed phases of the reproductive cycle (Shiell & Uthicke 2006).Rates of activity (cm h -1) and sediment egestion (g h -1) obtained over the 5 d study period for each of the animals (n = 18 to 30) were averaged and √ ⎯ x + 0.5 transformed (Fowler et al 1998). The effect of time of day (T), month (M) and year (Y) on rates of activity and sediment egestion was subsequently assessed with separate 3-way ANOVA procedures.…”

mentioning

confidence: 99%

Aggregations and temporal changes in the activity and bioturbation contribution of the sea cucumber Holothuria whitmaei (Echinodermata: Holothuroidea)

Shiell¹,

Knott²

2010

Mar. Ecol. Prog. Ser.

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The population density, activity and bioturbation contribution of the sea cucumber Holothuria whitmaei was investigated on Ningaloo Reef, Western Australia. Two methods, stratified manta tows and blanket manta tows, recorded population densities between 11.4 and >100 individuals (ind.) ha -1 . Further analysis revealed a heterogeneous pattern of distribution, with individuals tending to aggregate (Moran's I; 0.039; p < 0.05) on the outer reef lagoon and particularly in areas of high flow. Densities within aggregations were up to 7.2 times greater than those obtained after blanket manta tows (17.1 ind. ha -1 ), and 4.5 to 6.3 times greater than those obtained after traditional stratified manta tows (19.3 to 27.1 ind. ha -1 ). Behavioural studies, including investigations of activity and bioturbation, were conducted over a 2 yr time frame (2002)(2003) incorporating 3 monitoring periods within each year: January, April and August. Rates of activity varied diurnally, increasing between morning and afternoon, and seasonally, increasing in April, relative to January and August. Temporal patterns of feeding were more difficult to characterise; although rates of sediment egestion were in many cases higher in the morning, no conclusive diurnal or seasonal patterns could be established. Subsequent regression analysis, however, did find a significant positive correlation between the distance travelled and the volume of sediment egested. The volume of sediment bioturbated by H. whitmaei at a population level was found to represent only a small fraction of the sediments available (ca. 2 to 14% per annum), even though the contribution per individual was greater than that of smaller sea cucumber species. However, at maximum densities and typical rates of activity, H. whitmeai makes physical contact with approximately 2 times the available coral reef sediments per annum per hectare, simply by crawling. This may represent an important ecological contribution, particularly in light of previously documented links between sea cucumber activity, nutrient recycling and the enhancement of benthic microalgal communities.KEY WORDS: Aggregation · Behavioural activity · Bioturbation · Coral reef lagoon · Densitydependent effects Resale or republication not permitted without written consent of the publisherMar Ecol Prog Ser 415: [127][128][129][130][131][132][133][134][135][136][137][138][139] 2010 tributed to a 'boom and bust' cycle where high-value sea cucumbers are targeted preferentially, leading to high-value species being fished to near local extinction (Rees et al. 2003) or to levels too low to sustain the fishery (Uthicke & Benzie 2000a).Previous studies of the ecology and biology of Holothuria whitmaei centred on the Great Barrier Reef (GBR), Queensland, Australia (Uthicke & Karez 1999, Uthicke & Benzie 2000a,b, 2002) and elsewhere in the broader Pacific Ocean (Conand 1981, Martinez & Richmond 1998. Several of these provide useful descriptions of the habitat preferences of H. whitmaei, which are described broadl...

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Timing of the reproductive cycle of Holothuria (Mertensiothuria) leucospilota (Brandt, 1835) from the Persian Gulf based on evaluation of gonad histomorphology and sex hormones

Faridani,

Salamat,

Doostshenas

et al. 2023

Aquat Sci

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Sea cucumber Holothuria (Mertensiothuria) leucospilota is a native export species in the Persian Gulf, and despite its high economic value, no study has been conducted on its reproductive biology in this region. The aim of the present study was to describe the reproductive biology of H. leucospilota using gonad tissue indices and steroid sex hormones (for the rst time in sea cucumbers). Spawning was observed only once in this species. The annual reproductive cycle of H. leucospilota can be divided into six stages including resting (recovery), growth, advanced growth, mature, spawning and spent. These stages were simultaneous among the population. The beginning of gametogenesis coincided with the end of January and continued until the end of July. From May to July, the majority of individuals in the population were mature and ready to spawn. Spawning nally took place in August when the water temperature reaches its maximum value. However, spawning continued until the beginning of October. In general, according to the present study, the reproductive season of H. leucospilota is the summer of the Persian Gulf, when the temperature reaches its maximum. Most individuals were in the resting phase between late October and early January, during which it was impossible to distinguish the sex of them.

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Reproduction of the commercial sea cucumber Holothuria whitmaei [Holothuroidea: Aspidochirotida] in the Indian and Pacific Ocean regions of Australia

Cited by 50 publications

References 29 publications

Reproductive biology of the sea cucumber <i>Holothuria sanctori</i> (Echinodermata: Holothuroidea)

Reproductive biology of the sea cucumber <i>Holothuria sanctori</i> (Echinodermata: Holothuroidea)

Aggregations and temporal changes in the activity and bioturbation contribution of the sea cucumber Holothuria whitmaei (Echinodermata: Holothuroidea)

Timing of the reproductive cycle of Holothuria (Mertensiothuria) leucospilota (Brandt, 1835) from the Persian Gulf based on evaluation of gonad histomorphology and sex hormones

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