Cause, conseguenze e strategie di mitigazione Proponiamo il primo di una serie di articoli in cui affronteremo l’attuale problema dei mutamenti climatici. Presentiamo il documento redatto, votato e pubblicato dall’Ipcc - Comitato intergovernativo sui cambiamenti climatici - che illustra la sintesi delle ricerche svolte su questo tema rilevante.

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Climate Change 2007: The Physical Science Basis.

Statistics and Data Analysis in Geology

As the number of fish reproduction studies has proliferated, so has the number of gonadal classification schemes and terms. This has made it difficult for both scientists and resource managers to communicate and for comparisons to be made among studies. We propose the adoption of a simple, universal terminology for the phases in the reproductive cycle, which can be applied to all male and female elasmobranch and teleost fishes. These phases were chosen because they define key milestones in the reproductive cycle; the phases include immature, developing, spawning capable, regressing, and regenerating. Although the temporal sequence of events during gamete development in each phase may vary among species, each phase has specific histological and physiological markers and is conceptually universal. The immature phase can occur only once. The developing phase signals entry into the gonadotropin-dependent stage of oogenesis and spermatogenesis and ultimately results in gonadal growth. The spawning cap...

https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1080/19425120.2011.555724

A Standardized Terminology for Describing Reproductive Development in Fishes

http://digital.csic.es/bitstream/10261/44729/1/Taranger%20et%20al_%2c%20GCE.pdf

Control of puberty in farmed fish

Ingestion of microplastics by demersal fish from the Spanish Atlantic and Mediterranean coasts

/pdf/female-reproductive-strategies-of-marine-fish-species-of-the-180skjc43h.pdf

Female Reproductive Strategies of Marine Fish Species of the North Atlantic

http://digital.csic.es/bitstream/10261/26870/1/murua2.pdf

Procedures to estimate fecundity of marine fish species in relation to their reproductive strategy

/pdf/procedures-to-estimate-fecundity-of-wild-collected-marine-4zr6wtkf0v.pdf

Procedures to Estimate Fecundity of Wild Collected Marine Fish in Relation to Fish Reproductive Strategy

Reproductive timing can be defined as the temporal pattern of reproduction over a lifetime. Although reproductive timing is highly variable in marine fishes, certain traits are universal, including sexual maturity, undergoing one or more reproductive cycles, participating in one or more spawning events within a reproductive cycle, release of eggs or offspring, aging, and death. These traits commonly occur at four temporal scales: lifetime, annual, intraseasonal, and diel. It has long been known that reproductive timing affects reproductive success, especially in terms of the onset of sexual maturity and the match or mismatch between seasonal spawning and offspring survival. However, a comprehensive understanding of variability in reproductive timing over species, populations, and temporal scales is lacking. In addition, there is a need to assess how variability in reproductive timing affects a population's resilience. Because natural selection occurs at the individual level, this necessitates an ...

/pdf/reproductive-timing-in-marine-fishes-variability-temporal-20b7lli008.pdf

Reproductive Timing in Marine Fishes: Variability, Temporal Scales, and Methods

Although incorporating detailed reproductive data into all stock assessments is not a practical goal, the need to understand how reproductive biology affects population productivity is being increasingly recognized. More research focused on reproductive biology—coupled with a shift towards a resilience perspective in fisheries science—is resulting in challenges to many long-held assumptions; the emergence of important new issues; and identification of the need to improve data and methods used in reproductive studies. Typically, data for reproductive studies are based on an assessment of gonadal development, which is most accurately evaluated with histology. This special section of Marine and Coastal Fisheries contains contributions from a workshop on the gonadal histology of fishes that was held in Cadiz, Spain, during June 2009. These papers cover a wide range of species and reproductive topics while introducing improved and new histological techniques. In this introduction, we address the follo...

/pdf/emerging-issues-and-methodological-advances-in-fisheries-2di1o9wqy0.pdf

Hilario Murua

Papers

Female Reproductive Strategies of Marine Fish Species of the North Atlantic

Procedures to estimate fecundity of marine fish species in relation to their reproductive strategy

Procedures to Estimate Fecundity of Wild Collected Marine Fish in Relation to Fish Reproductive Strategy

Reproductive Timing in Marine Fishes: Variability, Temporal Scales, and Methods

Emerging Issues and Methodological Advances in Fisheries Reproductive Biology