Regulating reproductive cycles for captive spawning

Berlinsky, David L.; Kenter, Linas W.; Reading, Benjamin J.; Goetz, Frederick W.

doi:10.1016/bs.fp.2020.09.001

Cited by 20 publications

(15 citation statements)

References 270 publications

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“…Female sablefish do not appear to spawn (release eggs) in tanks in captivity; they need to be hormonally induced to undergo the final stages of ovarian development referred to as oocyte maturation and ovulation (Berlinsky, Kenter, Reading, & Goetz, 2020;Goetz, 1983). Both partially purified salmon gonadotropin (SG-G100) and gonadotropin releasing hormone (GnRH) were first reported to stimulate ovulation of sablefish held in captivity (Solar et al, 1987), but details about spawning and the ability of the eggs to undergo fertilization and subsequent development were not provided.…”

Section: Spawning Inductionmentioning

confidence: 99%

“…The progression of these ovulatory events is followed noninvasively using ultrasonography and when eggs are clearly ovulated and channelized in the ovary, then stripping of the female can occur (Berlinsky et al, 2020;Cook et al, 2015). Not all fish treated in this manner ovulate eggs that have good rates of fertilization and cell division symmetry perhaps indicating different sensitivities of females to the hormone.…”

Section: Spawning Inductionmentioning

confidence: 99%

“…However, a lower pre-injection appears to synchronize females (Figure 1). The effect of this pre-injection is likely to induce "meiotic" or "ovulatory competence" required for fully responding to the higher implant level (Berlinsky et al, 2020).…”

Section: Spawning Inductionmentioning

confidence: 99%

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Status of sablefish, Anoplopoma fimbria, aquaculture

Goetz

Anulacion

Arkoosh

et al. 2021

J World Aquaculture Soc

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Sablefish, Anoplopoma fimbria (also called black cod), is a long-lived marine species with wide distribution extending from Baja California to Alaska, the Bering Sea, and through to the eastern coast of Japan. The landed weight of sablefish in the U.S. commercial fisheries is not large compared with other species; however, the exceptional value of sablefish has ranked it high compared with other species such as pollock, sockeye salmon, and Pacific cod. Sablefish are high in omega-3 fatty acids and have white firm flesh with superior quality and taste. Current population levels are lower

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Section: Spawning Inductionmentioning

confidence: 99%

Section: Spawning Inductionmentioning

confidence: 99%

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Status of sablefish, Anoplopoma fimbria, aquaculture

Goetz

Anulacion

Arkoosh

et al. 2021

J World Aquaculture Soc

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“…The failure of captive fish to successfully initiate and conclude gonadal maturation, ovulation/spermiation, and spawning is due to the deficiency of gonadotropins: follicle stimulating hormone (FSH) and luteinizing hormone (LH), secreted from the pituitary gland necessary for gametogenesis and positive regulation of reproduction, all under the influence of external factors (e.g., photoperiod, temperature, food supplies, pheromones) that may act on the hormonal cascades of the axis brain-pituitary-gonads [80,81]. Manipulations of various environmental parameters can often improve spawning consistency.…”

Section: Environmental Manipulationmentioning

confidence: 99%

Spotted Wolffish Broodstock Management and Egg Production: Retrospective, Current Status, and Research Priorities

François

Beirão

Superio

et al. 2021

Animals

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The first artificially fertilized spotted wolffish (Anarhichas minor) eggs hatched in Norway in the mid-1990s as this species was considered by Norwegian authorities to be a top candidate species for cold-water aquaculture in the North Atlantic regions. Previous research conducted in Norway (since 1992) and Canada (since 2000), focused on identifying key biological parameters for spotted wolffish cultivation which led, respectively, to the rapid establishment of a full commercial production line in northern Norway, while Québec (Canada) is witnessing its first privately driven initiative to establish commercial production of spotted wolffish on its territory. The control of reproduction can be viewed as a major requirement to achieve the development of performant strains using genetic selection tools and/or all-year-round production to bring about maximal productivity and synchronization among a given captive population. Although the basic reproduction aspects are more understood and controlled there are still some challenges remaining involving broodstock and upscaling of operations that limit the achievement of a standardized production at the commercial level. Quality of gametes is still considered a major constraint and it can be affected by multiple factors including nutrition, environmental conditions, handling practices, and welfare status. Internal insemination/fertilization and the protracted incubation period are challenging as well as the establishment of a health monitoring program to secure large-scale operations. The profound progress achieved in the control of reproduction, sperm handling, and cryopreservation methods for this species is presented and discussed. In this review, we also go into detail over the full range of up-to-date cultivation practices involving broodstock and identify areas that could benefit from additional research efforts (i.e., broodstock nutrition, health and welfare, scaling-up egg and larval production, genetics, and development of selective breeding programs).

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“…Using a hormonal stimulation model in vitro of maturation and ovulation of sturgeon oocytes allows solving various fundamental and applied problems [3]. While the molecular mechanisms of maturation of fish oocytes were well understood [4,5], the ovulation process is still poorly understood. Most of the early studies on the mechanisms of ovulation in fish were mainly done on teleost fish.…”

Section: Introductionmentioning

confidence: 99%

Effect of sodium orthovanadate on ovulation isolated ovarian follicles in Siberian Sturgeon (Acipenser baerii) In Vitro

Balashov

Kovalev

2021

E3S Web Conf.

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Effects of sodium orthovanadate on oocyte ovulation were examined during in vitro culture of Siberian sturgeon ovarian follicles from hibernating fish. It was shown that sodium orthovanadate stimulates ovulation of Siberian sturgeon oocytes in a dose-dependent manner. The stimulating or inhibitory effect of vanadate depends on the time of addition to the incubation medium. It was also shown that the stimulating effects of orthovanadate depend on the physiological status of hibernating females whose oocytes were isolated

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Regulating reproductive cycles for captive spawning

Cited by 20 publications

References 270 publications

Status of sablefish, Anoplopoma fimbria, aquaculture

Status of sablefish, Anoplopoma fimbria, aquaculture

Spotted Wolffish Broodstock Management and Egg Production: Retrospective, Current Status, and Research Priorities

Effect of sodium orthovanadate on ovulation isolated ovarian follicles in Siberian Sturgeon (Acipenser baerii) In Vitro

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