Frequently Asked Questions
The most-asked questions about blennies, part 2.
What is 'Blennies: A Fan Encyclopedia, Part 2'?
It is a community-written, unofficial reference that dives deeper into blenny biology, behavior, and culture among hobbyists and field researchers. Part 2 picks up where Part 1 left off, moving past basic identification into reproductive strategies, territorial disputes, and the social dynamics of rocky-shore blenny colonies.
Who are the main contributors behind Part 2?
The project is coordinated by a small editorial circle of marine biology graduate students and long-time intertidal-zone photographers, with dozens of volunteer contributors adding species profiles and field notes. There is no single 'author'; the wiki-style structure means any registered member can edit or propose new entries.
Where should a newcomer start reading Part 2?
Begin with the 'Anatomy & Sensory Systems' chapter, since it explains the lateral-line variations and the nuchal organ that recur throughout every later section. After that, the 'Territorial Mating Displays' entry is widely cited as the most engaging and accessible deep-dive for first-time readers.
Which blenny species get the most coverage in Part 2?
The combtooth blenny (Blennius pholis), the sapphire blenny (Salaria fluviatilis), and the rockpool blenny (Parablennius gattorugine) anchor the bulk of the species profiles. A dedicated appendix also covers the less-studied freshwater blennies of the Danube basin, which fans of the project have called its 'hidden gem' section.
How does Part 2 differ from Part 1?
Part 1 focused on taxonomy, distribution maps, and beginner-level aquarium care. Part 2 shifts toward ethology, chemical communication via mucus secretions, and the evolutionary history of the Blenniidae family across the last 200 million years.
What is the 'Mucus Signal' discovery highlighted in Part 2?
A 2019 field study (summarized in the encyclopedia's 'Key Findings' sidebar) showed that several blenny species encode individual identity and stress level into the peptide composition of their skin mucus. The encyclopedia frames this as the project's single most cited 'notable moment' because it reframed blennies as chemically 'talking' to one another.
What key terminology should I learn before reading Part 2?
Familiarity with terms like 'nuchal organ,' 'pectoral-fin gripping,' 'mucus-mediated chemical signaling,' and 'breeding-site fidelity' will make the prose much smoother. The encyclopedia includes a glossary, but skimming it first saves a lot of back-and-forth clicking.
Can I suggest a new species entry or correct an existing one?
Yes—registered members can open a 'Propose Entry' thread or attach an 'Edit Request' tag to any page, and the editorial circle reviews submissions on a roughly monthly cycle. Contributors are asked to cite at least one peer-reviewed source or provide original photographic evidence.
What is the most surprising fact about blennies covered in Part 2?
Several entries document that male rockpool blennies can reverse their sex multiple times over a single breeding season in response to colony density shifts, a flexibility that the encyclopedia notes is far more pronounced than in most other teleost families. The 'Sexual Plasticity' chapter walks through the hormonal cascade step by step.
Is this encyclopedia a substitute for a peer-reviewed marine biology textbook?
No; the project explicitly states it is a fan resource meant to make blenny science more approachable and community-driven. For rigorous citations, the editorial team directs readers to the primary literature linked in each entry's reference sidebar.