Fish hatching strategies: a review

Korwin-Kossakowski, M.

doi:10.1007/s11160-011-9233-7

Cited by 61 publications

(36 citation statements)

References 84 publications

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“…At other temperatures, the individuals that left the egg membranes usually show less advanced ontogenic development (Kokurewicz 1969(Kokurewicz , 1970Kupren et al 2011). The reason for faster hatching of embryos at higher temperatures is their increased mobility in warmer water and earlier excretion of the hatching enzyme (Blaxter 1969(Blaxter , 1992Kamler 1992;Kamler et al 1998;Korwin-Kossakowski 2012).…”

Section: Discussionmentioning

confidence: 99%

Early development and allometric growth patterns of rheophilic cyprinid common dace Leuciscus leuciscus (Cyprinidae: Leuciscinae)

et al. 2016

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The present work is the first comprehensive description of easily recognizable morphological changes, allometric growth, and behaviour during early ontogeny of endangered common dace Leuciscus leuciscus, establishing a reference for its normal development under laboratory conditions. Based on the external morphology, three different periods and eight characteristic steps (ES9-JS1; ES-embryonic steps, JS-juvenile steps) were identified between hatching and 30 days post-hatch at 25°C. This study shows that all allometric changes occurred after notochord flexion across a wide range of body lengths (15.35-21.78 mm TL) reflecting the larvae-juvenile transition. Observations on the early development of common dace confirmed the relatively uniform development of cyprinid species and support the hypothesis of differential growth patterns for primary functions during early ontogeny. Differences in relative growth between common dace and other species might be attributed to their different size at hatching, behaviour, and environmental cues.

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Section: Discussionmentioning

confidence: 99%

Early development and allometric growth patterns of rheophilic cyprinid common dace Leuciscus leuciscus (Cyprinidae: Leuciscinae)

et al. 2016

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“…Examples include brown trout ( Salmo trutta ) (Roussel, 2007), zebrafish (Bagatto, 2005; Shang and Wu, 2004), and medaka (Cheung et al, 2014). Hatching abnormalities may arise from delays in development such as the failure to form sufficient hatching enzyme and/or diminished jaw movement necessary for rupture of hatching gland cells and enzyme with slowed or incomplete digestion of the chorion (Korwin-Kossakowski, 2012). …”

Section: Discussionmentioning

confidence: 99%

Early life co-exposures to a real-world PAH mixture and hypoxia result in later life and next generation consequences in medaka (Oryzias latipes)

Chernick

Wang

et al. 2017

Aquatic Toxicology

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Acute effects of individual and complex mixtures of polycyclic aromatic hydrocarbons (PAHs) are well documented in vertebrate species. Hypoxia in fish reduces metabolic rate and reproduction. However, less is known about the later life consequences stemming from early-life exposure to PAHs or hypoxia, particularly their co-exposure. To address this, medaka (Oryzias latipes) embryos were exposed to a complex PAH mixture sediment extract from the Elizabeth River, VA (ERSE) at concentrations of 0.1, 0.5, or 1.0% or to one of three different hypoxia scenarios: continuous, nocturnal, or late stage embryogenesis hypoxia. Co-exposures with 0.1% ERSE and each of the hypoxia scenarios were conducted. Results included decreased survival with ERSE, hatching delays with hypoxia, and higher occurrences of deformities with each. The continuous hypoxia scenario caused the most significant changes in all endpoints. These early-life exposures altered later-life growth, impaired reproductive capacity, and reduced the quality of their offspring. ERSE alone resulted in a female-biased sex ratio while continuous or nocturnal hypoxia produced significantly greater numbers of males; and co-exposure produced an equal sex ratio. Exposure to a PAH mixture and hypoxia during early life stages has meaningful later-life and next generational consequences.

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“…The mechanisms regulating hatching timing in fishes have been relatively well studied, partly due to the importance of hatching synchronization in commercial hatcheries (Korwin-Kossakowski, 2012). However, prior mechanistic investigations of hatching in anurans have not examined what enables embryos to alter its timing in response to environmental cues.…”

Section: Discussionmentioning

confidence: 99%

“…Xenopus laevis embryos sink to the bottom of the egg and rotate every 10-15 min, which Bles (1905) hypothesized to spread hatching enzyme on the membrane. Some teleost fish embryos have a period of rapid, intense movement as they approach hatching, but stop moving just prior to hatching, during release of hatching enzyme and localized digestion of the egg envelope (reviewed in Korwin-Kossakowski, 2012). In contrast, California grunion embryos increase their activity after receiving a hatching stimulus (Speer-Blank and Martin, 2004).…”

Section: Pre-rupture Behaviormentioning

confidence: 99%

“…This behavior aids oxygen uptake and, at later stages, facilitates rapid escape from egg capsules under attack. Unlike anurans, some fishes hatch tail-first instead of headfirst; the orientation of exit usually depends on the location of HGs on the embryo, and hatching head-first generally enables faster exit from the egg capsule (reviewed in Korwin-Kossakowski, 2012). However, the importance of embryo positioning may vary, depending on the time course of hatching enzyme release, the distribution of HGs, embryo behavior, and egg structure or environment.…”

Section: Hg Distribution and Functionmentioning

confidence: 99%

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How embryos escape from danger: the mechanism of rapid, plastic hatching in red-eyed treefrogs

Cohen

Seid

Warkentin

2016

Journal of Experimental Biology

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Environmentally cued hatching allows embryos to escape dangers and exploit new opportunities. Such adaptive responses require a flexibly regulated hatching mechanism sufficiently fast to meet relevant challenges. Anurans show widespread, diverse cued hatching responses, but their described hatching mechanisms are slow, and regulation of timing is unknown. Arboreal embryos of redeyed treefrogs, Agalychnis callidryas, escape from snake attacks and other threats by very rapid premature hatching. We used videography, manipulation of hatching embryos and electron microscopy to investigate their hatching mechanism. High-speed video revealed three stages of the hatching process: pre-rupture shaking and gaping, vitelline membrane rupture near the snout, and muscular thrashing to exit through the hole. Hatching took 6.5-49 s. We hypothesized membrane rupture to be enzymatic, with hatching enzyme released from the snout during shaking. To test this, we displaced hatching embryos to move their snout from its location during shaking. The membrane ruptured at the original snout position and embryos became trapped in collapsed capsules; they either moved repeatedly to relocate the hole or shook again and made a second hole to exit. Electron microscopy revealed that hatching glands are densely concentrated on the snout and absent elsewhere. They are full of vesicles in embryos and release most of their contents rapidly at hatching. Agalychnis callidryas' hatching mechanism contrasts with the slow process described in anurans to date and exemplifies one way in which embryos can achieve rapid, flexibly timed hatching to escape from acute threats. Other amphibians with cued hatching may also have novel hatching mechanisms.

show abstract

Fish hatching strategies: a review

Cited by 61 publications

References 84 publications

Early development and allometric growth patterns of rheophilic cyprinid common dace Leuciscus leuciscus (Cyprinidae: Leuciscinae)

Early development and allometric growth patterns of rheophilic cyprinid common dace Leuciscus leuciscus (Cyprinidae: Leuciscinae)

Early life co-exposures to a real-world PAH mixture and hypoxia result in later life and next generation consequences in medaka (Oryzias latipes)

How embryos escape from danger: the mechanism of rapid, plastic hatching in red-eyed treefrogs

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