Q Can hybrids reproduce? Scott Roberts, via email.
A Hybridisation causes fish biologists all sorts of headaches, from simple taxonomic and identification issues, possibly relating to record claims, to potentially more serious ecological consequences where they are present in open-water environments. The latter is of concern because, contrary to common perception, some fish hybrids are able to reproduce, and they do, therefore, have the potential to impact upon other species.
Simply put, a hybrid is the offspring of two different species. From an evolutionary viewpoint, there are numerous barriers to the existence of hybrids, to maintain the genetic integrity of a species.
The process of reproductive isolation should prevent their existence, which is achieved by a variety of means, from genetic and morphological incompatibility to differing breeding cycles and biological rejection at the cellular level.
Denne historien er fra November 19, 2019-utgaven av Angler's Mail.
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Denne historien er fra November 19, 2019-utgaven av Angler's Mail.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
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Making Short Work Of Specimen Chub
It takes angling guide Kenny Parsons a few hours to drive from his home, near Bath, to his favourite Wessex rivers, but it doesn’t seem to bother him, as he just loves to catch big chub on feeder and fl oat tactics, his personal best standing at 7 lb 12 oz. One of his favourite methods for this cunning species is a maggot feeder with a short hook link.
Venues on the menu
Dave regularly switches between different types of venue, as he is convinced that it helps him become a better and far more versatile angler. Here is his guide on what to expect and how to tackle them.
“By failing to prepare, you are preparing to fail”
In our new mini series, the physiotherapist will put you in the right frame of mind to help you achieve your angling dreams.
Search for a super stripy
They’ve done it! Robbie Northman and John Bailey have been on a long mission to catch a 4 lb perch. Robbie got there first, landing this specimen recently.
Pole position carping
The thinking carp angler offers his opinion, insight and advice every week exclusively here in Angler’s Mail. Col will help you become a wiser angler.
My best catch!
This week: Billy puts his newborn daughter on the scales after a productive winter carp session.
Huge zed after run of disasters
19 lb 4 oz monster zanderRiver boat fishing sessionSeries of calamities
Christmas stocking
The future of fishery management is a bright one, these BTEC Fish Husbandry students keen to help stock an Essex lake with carp over the Christmas holiday, including this 21 lb mirror.
Alien aquatic plants
In this final part of my special look at alien species, I have highlighted some invasive aquatic plants that have had an impact on waters, with an evaluation on the degree of threat that they pose, on a scale of one to ten, one being the lowest.
A guide's guide to guides
Canadian Jeff is a great guide, helping anglers to catch the fish of their dreams.
